Toshiba Gf630 User Manual

6F8A0883  
ELECTROMAGNETIC FLOWMETER DETECTOR  
MODEL GF630, GF632  
INSTRUCTION MANUAL  
for FM Approval and CSA Certification  
© TOSHIBA Corporation 2008  
All Rights Reserved.  
NOTES  
Before using the equipment, please read this manual carefully and understand the  
contents, and then use the equipment correctly.  
NEVER attempt to operate the equipment in any ways that are not described in this  
instruction manual.  
After reading this manual, store it with care in a place where it can be referred to  
whenever needed.  
Please be sure that this manual is delivered to the personnel who will use this product.  
6F8A0883  
SAFETY PRECAUTIONS  
Safety signs and labels affixed to the product and/or described in this manual give important information for using  
the product safely. They help prevent damage to property and obviate hazards for persons using the product.  
Make yourself familiar with signal words and symbols used for safety signs and labels. Then read the safety  
precautions that follow to prevent an accident involving personal injury, death or damage to property.  
Explanation of signal words  
The signal word or words are used to designate a degree or level of hazard seriousness.  
The signal words used for the product described in this manual are WARNING and CAUTION.  
Indicates a potentially hazardous situation which,  
if not avoided, could result in death or serious  
WARNING  
injury.  
Indicates a potentially hazardous situation which,  
if not avoided, may result in minor to moderate  
CAUTION  
injuries or in property damage.  
Safety symbols  
The following symbols are used in safety signs and labels affixed to a product and/or in the manual for giving  
safety instructions.  
Indicates an action that is prohibited. Simply DON’T do this action.  
The prohibited action is indicated by a picture or text inside or next to the circle  
Indicates an action that is mandatory. DO this action.  
The mandatory action is indicated by a picture or text inside or next to the circle  
(white letters on a colored background).  
Indicates a potential hazard. The potentially hazardous situation is indicated by  
a picture or text inside or next to the triangle.  
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SAFETY PRECAUTIONS  
Safety Precautions for Installation and Wiring  
WARNING  
Do not disconnect while circuit is live unless location is known to be nonhazardous.  
Live part of electric circuit or a high temperature department can cause explosion.  
Do not modify or disassemble the enclosure.  
Strength degradation and defects of enclosure can cause explosion.  
DONT  
DONT  
Do not use parts of other products.  
Protective performance degradation for hazardous location can cause explosion.  
DONT  
Do not touch live circuits until assembly of all components is not over.  
Protective performance degradation for hazardous location can cause explosion.  
DONT  
Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the  
Canadian Electrical code for Canada (CEC, CAN/CSA-C22.1) and the drawing  
Appendix 1.  
Unsuitable conduit connections for hazardous location can cause explosion.  
DO  
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SAFETY PRECAUTIONS(continued)  
Safety Precautions for Installation and Wiring  
CAUTION  
Install a switch and fuse to isolate the  
GF630/LF600F, GF630/LF610F and GF632  
from mains power.  
Use an appropriate device to carry and install  
the GF630/LF600F, GF630/LF610F and GF632.  
Power supply from mains power  
can cause electric shock or  
circuit break-down.  
If this product falls to the ground,  
injury, or malfunction of or damage  
to the product, can be caused.  
DO  
DO  
Turn off mains power before conducting  
Do not modify or disassemble the  
GF630/LF600F, GF630/LF610F and GF632  
unnecessarily.  
wiring work.  
Wiring while power is applied  
can cause electric shock.  
Modifying or disassembling this  
product can cause  
electric shock, malfunction of or  
damage to this product.  
DON’T  
DO  
Turn off mains power before working on  
Ground the GF630/LF600F, GF630/LF610F and  
GF632 independently from power equipment.  
(100 ohm or less ground resistance)  
Operating this product  
pipes.  
Working on pipes while power  
is applied can cause  
without grounding can cause  
electric shock.  
electric shock or malfunction.  
DO  
DO  
Do not conduct wiring work with bare  
Use crimped terminal lugs for the terminal  
board and GND terminal.  
hands.  
Loose connections can cause  
electric shock, fire from  
excessive current or system  
Remaining electric charge  
even if power is turned off can  
still cause electric shock.  
DO  
DON’T  
malfunction.  
Do not work on piping and wiring with wet  
hands.  
Wet hands may result in  
electric shock.  
DON’T  
The label shown left is placed near the terminal board for  
power supply on the converter.  
(A black border and symbol on yellow triangle)  
Be alert to electric shock.  
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SAFETY PRECAUTIONS (continued)  
Safety Precautions for Maintenance and Inspection  
CAUTION  
Do not conduct wiring work with wet hands.  
Do not conduct wiring work when power is  
applied.  
Wet hands may result in  
Wiring while power is applied can  
electric shock.  
cause electric shock.  
DON’T  
DON’T  
Do not touch the GF630/LF600F,  
GF630/LF610F and GF632 main body when  
high temperature fluid is being measured.  
The fluid raises the main body  
The label shown left is placed near  
the terminal board for power input  
of the converter. (A black border  
and symbol on yellow triangle)  
Be alert to electric shock.  
temperature and can cause burns  
when touched.  
DON’T  
Usage limitation  
This product is not manufactured for applying to a system requiring safety directly involved  
human life as follows. Please contact your nearest Toshiba reprehensive if there is a possibility of  
using this product for such use.  
- Main control systems of nuclear power plants, safety protection systems in nuclear  
facilities or other important systems requiring safety  
- Medical control systems relating to life support  
Warranty and Limitation of Liability  
Toshiba does not accept liability for any damage or loss, material or personal, caused as a direct or indirect  
result of the operation of this product in connection with, or due to, the occurrence of any event of force  
majeure (including fire or earthquake) or the misuse of this product, whether  
intentional or accidental.  
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Handling Precautions  
To obtain the optimum performance from the GF630/LF600F, GF630/LF610F and GF632 for years of  
continuous operation, observe the following precautions.  
(1) Do not store or install the flowmeter in:  
Where there is direct sunlight.  
Where there is snow and ice  
Infrared switches may not function correctly.  
Where excessive vibration or mechanical shock occurs.  
Where high temperature or high humidity conditions obtain.  
Where corrosive atmospheres exist.  
That can be submerged under water.  
Where there is a sloped floor. To put the flowmeter temporarily on the floor, place it  
carefully with something, such as a block, to support it so that the flowmeter will not  
topple over.  
Places where there is following factors.  
Factors to impede infrared switch to operate properly  
Intense light such as direct sunlight and reflected sunlight by window glass or metal plate  
Place where brightness changes suddenly such as ON/OFF of lighting  
Dense smoke or steam near the control panel  
Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and  
haze due to their attachment  
Light reflecting object near the control panel, or reflecting object such as metal plate  
placed opposing to the control panel  
When any of above factors is considered, take a measure for the proper operation of  
infrared switch such as to place a cover or to secure a space for at least a person to stand in  
front of the control panel.  
When unable to avoid above factors, operate the EMF converter removing the factor by  
covering the control panel by hand so that light does not shine on it, by cleaning those  
attached on the control panel, or by standing in-between the reflecting object and the  
control panel to block the light.  
(2) In the case that the piping is non-conductive material, make sure to install the  
grounding rings(option) to each flange of detector using the M3 or M4 screw before  
piping.  
(3) Wire cables correctly and securely.  
Be sure to ground at the converter side (grounding resistance 100 ohm or less).  
Avoid a common ground used with other equipment where earth current may flow. An  
independent ground is preferable  
(4) Select cable paths away from electrical equipment (motors, transformers, or radio  
transmitters), which causes electromagnetic or electrostatic interference.  
(5) The apparatus does not be provided with the cable connections.  
Please prepare yourself for the cable connections which could be used in Division2  
hazardous locations.  
The cable lead-in section must be tightened securely to keep air tightness.  
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Handling Precautions (continued)  
(6) If the inside of the converter and detector's terminal box are wetted or humidified, it may  
cause insulation deterioration, which can result in fault or noise occurrence. So do not  
conduct wiring in the open air on rainy days.  
Also, be careful not to wet down the converter and detector's terminal box even in the  
case of indoor wiring, and complete wiring work in a short period of time.  
(7) Make sure the fluid to be measured will not freeze in the detector pipe. This can cause  
damage to the detector pipe.  
(8) Select appropriate wetted materials suited for the process fluid to be measured. Otherwise,  
fluid leakage due to corrosion can be caused.  
(9) Observe the following precautions when you open the converter housing cover:  
Do not open the cover in the open air unprotected against rain or wind. This can  
cause electric shock or cause damage to the flowmeter electronics.  
Do not open the cover under high ambient temperature or high humidity  
conditions or in corrosive atmospheres. This can cause deterioration of system accuracy  
or cause damage to the flowmeter electronics.  
(10) Since a varistor is built in converter, do not conduct a withstand voltage test for  
the converter.  
In addition, the voltage for checking the insulation of the converter must be 250VDC  
or lower.  
(11) This product may cause interference to radio and television sets if they are used  
near the installation site. Use metal conduits etc. for cables to prevent this  
interference.  
(12) Radio transmitters such as transceivers or cellular phones may cause interference to  
the flowmeter if they are used near the installation site. Observe the following  
precautions when using them:  
Close a transmitter cover before using a transceiver.  
Do not use a transceiver whose output power is more than 5 W.  
Move the antenna of a transceiver or a cellular phone at least 50 cm away from the  
flowmeter and signal cables when using it.  
Do not use a radio transmitter or a cellular phone near the flowmeter while it is  
operating online. The transmitter or cellular phone’s output impulse noise may interfere  
with the flowmeter.  
Do not install a radio transmitter antenna near the flowmeter and signal cables.  
(13) For reasons of flowmeter failure, inappropriate parameters, unsuitable cable  
connections or poor installation conditions, the flowmeter may not operate properly. To  
prevent any of these problems causing a system failure, it is recommended that you  
have preventive measures designed and installed on the flowmeter signal receiving  
side.  
(14) For installation and connectirn of the converter, check the model number of  
converter and read the instruction manual of the relevant converter.  
* We assume no responsibility for nonconformity caused by violation of precautions described in this  
manual or used in violation of the installation method and the operation method stipulated in a  
relevant ordinance or other regulations.  
About disposal  
When you dispose of this electromagnetic flowmeter detector, follow the ordinance or regulations of your  
state.  
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Table of Contents  
SAFETY PRECAUTIONS ·····················································································2  
Handling Precautions ······························································································6  
1. Product Inspection and Storage ······································································9  
1.1 Product Inspection ·······················································································9  
1.2 Storage ········································································································9  
2. Overview ·········································································································· 10  
3. Names of Parts ································································································· 11  
4. Installation ······································································································· 14  
4.1 Notes on Selecting the Installation Location ·············································16  
4.2 Mounting Procedure····················································································16  
4.3 Piping Connections ···················································································22  
4.4 Grounding ·································································································25  
5. Wiring ·············································································································· 27  
5.1 Cables ········································································································ 29  
5.2 External Device Connections and Grounding ············································30  
5.3 Notes on Wiring ······················································································30  
5.4 Wiring ····································································································· 31  
6. Operation ········································································································· 34  
7. Maintenance and Troubleshooting ································································· 35  
7.1 Maintenance ······························································································36  
7.2 Troubleshooting ························································································37  
8. Principle of Operation ···················································································40  
9. Specifications ··································································································41  
9.1 Flowmeter Specifications ···········································································41  
9.2 Type Specification Code ············································································46  
10. Outline Dimensions ·························································································47  
Appendix 1  
1-1 A system diagram for GF630/LF600F and GF630/LF610F···························· 52  
1-2 A system diagram for GF632··········································································53  
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1. Product Inspection and Storage  
1.1 Product Inspection  
GF630 series electromagnetic flowmeter is shipped in a cardboard container filled with shock-absorbing  
materials. Open the package carefully and check as follows:  
Make sure the following items are included in the package.  
For the integral type (when a converter and detector are united)  
Electromagnetic flowmeter main unit --------------------------------- 1 unit  
Instruction manuals---------------One each for the converter and detector  
Ground cable -------------------------------------------------------------2 pieces  
Integral  
For the separate type (when a converter and detector are separated)  
Electromagnetic flowmeter converter---------------------------------- 1 unit  
Electromagnetic flowmeter detector ----------------------------------- 1 unit  
Instruction manuals---------------------each for the converter and detector  
Ground cable -------------------------------------------------------------2 pieces  
Separate  
Inspect the flowmeter for indications of damage that may have occurred during shipment.  
Make sure the type and specifications of the flowmeter are in accordance with the ordered  
specifications.  
If you cannot find the items listed above or any problem exists, contact your nearest Toshiba representative.  
1.2 Strage  
To store the electromagnetic flowmeter after opening the package, select a storing place as follows and  
keep it under the conditions described below:  
CAUTION  
(1) Avoid places where there is direct sunlight, rain or wind.  
(2) Store the product in a well-ventilated place. Avoid places of extremely high humidity or  
extremely high or low temperature. The following environment is recommended:  
Humidity range: 10 to 90% RH (no condensation)  
Storage temperature: –25 to +65° C  
(3) Avoid places where vibrations or mechanical shock occur.  
(4) If the cover of the converter is left open while being stored, gradual deterioration of circuit  
isolation can be caused. Therefore don’t open the cover until it is connected with wires.  
(5) To put the flowmeter temporarily on the floor, place it carefully with something, such as  
block or stopper, to support it so that the flowmeter will not topple over.  
Stopper, etc. to prevent from toppling over it.  
flowmeter  
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2. Overview  
The GF630/LF600F, GF630/LF610F and GF632 electromagnetic flowmeter can be use in the  
following hazardous (classified) locations.  
Class, Division 2, Groups A, B, C and D,  
Class, Division 2, Groups E, F and G  
ClassⅢ  
The GF630 and GF632 electromagnetic flowmeter measures the volumetric flow rates of electrically conductive  
materials on the basis of Faraday's Law of electromagnetic induction.  
The device consists of two units: the GF630 and GF632 detector, through which the fluid to be measured flows,  
and the converter, which receives the electromotive force signals from the detector, then converts the  
signals into the 4–20 mA dc signal.  
Features  
Every type of electromagnetic flowmeter has the following features:  
Fluid flow is not obstructed and pressure loss is negligible.  
The process fluid's temperature, pressure, density or flow conditions has no effect on the accuracy of the  
flowmeter.  
The flowmeter output is directly proportional to the process flow rate, thus it is easy to read its output.  
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3. Names of Parts  
3.1 Appearance  
3.1.1 Appearance of GF630/LF600F and GF630/LF610F  
Integral  
For the detail of the converter, check the converter  
LF600F and LF610F instruction manual.  
for Power cable  
1/2-14NPT  
for I/Ol cable  
1/2-14NPT  
Hanging hook  
*Provided for upper 8 inch  
(200mm to 600mm)  
Terminal block cover  
Converter LF600F and LF610F  
Flow direction arrow  
GF630 Detector  
Ground terminal  
for converter  
Ground terminal  
for detector  
Flange  
Ground cable*  
Grounding ring  
( Provided for PTFE lining only )  
Figure 3.1.1 Appearance of GF630/LF600F and GF630/LF610F  
Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5  
as needed. (The screws are equipped to detector flanges.)  
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3.1.2 Appearance of Detector GF632  
Separate  
for Signal cable  
1/2 – 14 NPT  
for Excitation cable  
1/2 – 14 NPT  
Terminal Box Cover  
Terminal Box  
Flow direction arrow  
Hanging hook  
*Provided for upper 8 inch  
(200mm to 600mm)  
Ground terminal  
for detector  
Flange  
Ground cable*  
Grounding ring  
( Provided for PTFE lining only )  
Figure 3.1.2 Appearance of Detector GF632  
Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5  
as needed. (The screws are equipped to detector flanges.)  
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3.2 Construction of the terminal blocks  
3.2.1 Terminal Block Construction of GF630/LF600F and GF630/LF610F Type  
For the detail of the converter, check the converter LF600F and LF610F instruction manual.  
Integral  
3.2.2 Terminal Block Construction of GF632 Type  
Separate  
To signal cable terminal (A,B and G)  
To excitation cable terminal(X,Y and E)  
B
E
Y
A
G
X
Dont connect wiring to this terminal.  
Figure 3.2.2 Terminal Block of GF632  
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4. Installation  
Safety Precautions for Installation  
WARNING  
Do not active live circuits under environment of explosive atmospheres.  
Live part of electric circuit or a high temperature department can cause explosion.  
DON’T  
Do not use parts of other products.  
Protective performance degradation for hazardous location can cause explosion.  
DON’T  
Do not active live circuits While assembly of all components is not over.  
Protective performance degradation for hazardous location can cause explosion.  
DON’T  
Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the  
Canadian Electrical code for Canada (CEC, CAN/CSA-C22.1) and the drawing  
Appendix 1.  
Unsuitable conduit connections for hazardous location can cause explosion.  
DO  
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CAUTION  
Ground the GF630/LF600F,  
GF630/LF610F and GF632 independently  
from power equipment. (100 ohm or less  
ground resistance)  
Use an appropriate device to carry and install  
the GF630/LF600F, GF630/LF610F and GF632 .  
If his product falls to the ground,  
injury, or malfunction of or damage to  
the product, can be caused.  
Operating this product without  
grounding can cause electric  
shock or malfunction.  
DO  
DO  
Install a switch and fuse to isolate the  
GF630/LF600F, GF630/LF610F and GF632  
from mains power.  
Do not modify or disassemble the  
GF630/LF600F, GF630/LF610F and GF632  
unnecessarily.  
Power supply from mains power  
can cause electric shock or  
Modifying or disassembling this product  
can cause electric shock, malfunction  
circuit break-down.  
or damage to this product.  
DO  
DON’T  
Do not work on piping and wiring with wet  
The label shown left is placed near the  
terminal board for power supply to the  
converter.  
hands.  
Wet hands may result in electric  
shock  
Be alert to electric shock  
DON’T  
To put the flowmeter temporarily on the floor,  
place it carefully with something, such as  
stopper, to support it so that  
GF630/LF600F, GF630/LF610F and GF632  
will not topple over.  
flowmeter  
Stopper, etc. to prevent  
from toppling over it.  
DO  
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4.1 Notes on Selecting the Installation Location  
1. Avoid places within the immediate proximity of equipment producing electrical interference (such as  
motors, transformers, radio transmitters, electrolytic cells, or other equipment causing  
electromagnetic or electrostatic interference).  
2. Avoid places where excessive pipe vibration occurs.  
3. Avoid places where fluid is pumped in a pulsating manner  
4. Avoid places where there is direct sunlight. If this is unavoidable, use an appropriate shade  
5. Avoid places where corrosive atmospheres or high humidity conditions obtain.  
6. Avoid places where there may be limited access such as pipes installed next to high ceilings or  
constricted areas where clearance for installation or maintenance work is not provided.  
7. Design piping so that the detector pipe is always filled with fluid, whether the fluid is flowing or not.  
8. The detector has no adjustable piping mechanism. Install an adjustable short pipe where needed.  
9. Chemical injections should be conducted on the downstream side of the flowmeter.  
10. The maximum length of the cable that connects the detector and converter is 300m. Select the  
converter installation location so that the distance between the detector and converter dose not exceed  
300m.  
Separate  
4.2 Mounting Procedure  
4.2.1 Pipe checks  
(1) Before installing pipes, check for any leaning, misplacement or eccentricity as illustrated in Figure 4.1.  
An attempt to unreasonably connect pipes that are inclined may lead to a detector breakdown or fluid  
leakage. Connecting pipes in an eccentric state may also cause wears and tear of linings and grounding  
rings, as well as measurement errors.  
Before installing pipes, make sure to flush the interior of the pipes to remove deposited material.  
(a) Pipe leaning  
(b) Pipe axis misplacement (or eccentricity)  
Eccentricity  
Inclination  
Figure 4.1 Pipe leaning and axis misplacement  
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(2) Preventing an Empty Pipe Condition  
Fix the relevant pipes installed on both sides of the detector by attaching fittings, etc. to support the pipe. By  
supporting the pipes, not only the pipe vibration is reduced but also the damage to the pipes by the  
electromagnetic flowmeter's weight and the fluid mass (see Figures 4.2 and 4.3).  
Pipe support fittings  
Pipe support fittings  
Figure 4.2 Example of Pipe Fixing Procedure  
Figure 4.3 Model Diagram of Unsupported Pipes  
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4.2.2 Installation Procedure  
In the case that the piping is non-conductive material, make sure to install the grounding rings(option)  
to each flange of detector using the M4 screw before piping . The M4 screws are prepared to each flange.  
In addition, in the case of detector with FEP lining, make sure to install the gaskets between grounding ring  
and lining. The gaskets must be installed so as not to protrude into the measurement tube.  
And install the ground cables to each flange of detector using the M5 screw as needed. The M5 screws,  
spring washers and washers are prepared to flange. And the ground cables are included in the package.  
Flange  
M4 screw(Prepared to flange)  
refer to chapter 10 about the  
number of screws  
Ground cable  
(Included in the package)  
Grounding ring  
(Option for FEP, PU,CR)  
Gasket  
(Option for FEP only)  
Detector  
Lining  
(Standard for PTFE)  
(Standard for PTFE)  
M5 screw , spring washer and washer  
(Prepared to flange)  
Figure 4.4 Install of grounding rings and ground cables  
Downstream flange  
Upstream flange  
Detector  
Upper mounting bolts  
Gasket  
*Note2  
Gasket  
*Note2  
Flow direction  
Lower mounting bolts  
Figure 4.5 GF63* flowmeter detector piping connections  
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To mount the GF63*, place it between the upstream and downstream pipe flanges and tighten it  
with flange bolts and nuts. See Figure 4.5 and follow the procedure below:  
1. Insert two lower mounting bolts through the clearance holes in the upstream (or downstream)  
pipe flange.  
2. Install a gasket next to the upstream (or downstream) flange face and the other gasket next  
to the downstream (or upstream) pipe flange. The two mounting bolts can now be guided  
through the clearance holes in the downstream gasket and flange.  
3. Place the GF63* flowmeter detector between the two flange gasket, with the flowmeter  
detector body above the two bolts. The flowmeter must be oriented in accordance with the  
flow direction arrow.  
4. Install the two upper mounting bolts through the clearance holes in the upstream and downstream  
gasket and flanges. Then install the remaining mounting bolts depending on the flange pattern used.  
5. Thread nuts on both ends of the 4 (or more) mounting bolts, finger tight. (See Table 4.1 Bolt length  
and tightening torque)  
6. While centering the flowmeter with the longitudinal axis of the pipeline, tighten the nuts with a  
wrench diagonally across in even increments. (See Table 4.1 Bolt length and tightening torque)  
Note1: The flowmeter detector pipe axis must be aligned with the pipeline axis on both upstream and  
downstream sides. This is essential to have stable characteristics of flow measurement (especially  
flowmeters with meter sizes of 2"(50 mm) or less).  
for  
Note2: In the case of detector with CR or PU lining, please avoid use of a gasket that is same materials  
with lining material. If the same materials were used, gascket and lining would bond mutually.  
CAUTION  
(1) When high-temperature fluid is being measured, radiant heat from the detector pipe surface and  
adjoining pipes may cause the ambient temperature of the converter to go above 60C (140F).  
If the ambient temperature goes above 60C (140F), try to lower the temperature by measures  
such as wrapping heat-insulating materials over the detector pipe and adjoining pipes.  
(2) To put the flowmeter temporarily on the floor, place it carefully with something, such as stopper,  
to support it so that GF630 and GF632 will not topple over.  
- 19 -  
6F8A0883  
Table 4.1 Bolt length and Nut tightening torque  
ANSI class 150  
Machine Bolts  
Tightening  
torque  
[Nm] *1  
Meter size  
Length  
[inch]  
Diameter  
P.C.S  
15mm  
1/2”  
1”  
4
4
1/2”  
1/2”  
1/2”  
1/2”  
5/8”  
5/8”  
5/8”  
5/8”  
3/4”  
3/4”  
3/4”  
7/8”  
7/8”  
1”  
2”  
7 to 9  
25mm  
32mm  
2.16”  
2.16”  
2.36”  
2.56”  
2.95”  
2.95”  
2.95”  
3.15”  
3.15”  
3.54”  
3.86”  
3.94”  
4.33”  
4.53”  
4.92”  
5.12”  
5.70”  
14 to 17  
1 1/4”  
1 1/2”  
2”  
4
19 to 24  
40mm  
4
16 to 21  
50mm  
4
37 to 46  
65mm  
2 1/2”  
3”  
4
52 to 66  
80mm  
4
55 to 69  
100mm  
125mm  
150mm  
200mm  
250mm  
300mm  
350mm  
400mm  
450mm  
500mm  
600mm  
4”  
8
40 to 51  
5”  
8
68 to 85  
6”  
8
89 to 112  
119 to 149  
159 to 198  
183 to 229  
203 to 254  
232 to 289  
322 to 402  
336 to 420  
497 to 622  
8”  
8
10”  
12”  
14”  
16”  
18”  
20”  
24”  
12  
12  
12  
16  
16  
20  
20  
1”  
1 1/8”  
1 1/8”  
1 1/4”  
*1: 1[Nm] is 0.7376 [ftlbf].  
- 20 -  
6F8A0883  
4.2.3 Precautions in transportation  
To prevent the device from being damaged during transportation, the original packing should be left  
untouched until the device arrives near the intended installation site.  
The detector is equipped with hanging hooks. Lift it as shown in Figure 4.5. For information on the  
actual mass of each diameter, refer to Table 4.2.  
CAUTION  
A bar, etc. to lift  
(1)Never lift the detector by inserting a bar  
into its measurement pipe, because this will  
damage the linings, thus making it impossible  
to take stable measurements.  
the flowmeter.  
flowmeter  
flowmeter  
(2)To put the flowmeter temporarily on the floor,  
place it carefully with something, such as  
stopper, to support it so that GF630/LF600F,  
GF630/LF610F and GF632 will not topple over.  
Stopper, etc. to prevent from toppling over it.  
* The lifting work should be executed by those qualified for crane work or slinging work  
Cloth belts should only can be used  
because wire may cause damage to  
the detector or converter body.  
Wire or cloth belt  
is used.  
90°or less  
Lifting Lugs  
(b) Meter size 15mm to 150mm (1/2" to 6")  
Hanging hooks are not provided  
(a) Meter size 200mm to 600mm (8" to 24")  
Hanging hooks are provided  
Figure 4.6 Transportation of GF63* flowmeter detector  
- 21 -  
6F8A0883  
4.3 Piping Connections  
(1) Required Upstream Straight Pipe Length  
If various joints are used upstream of the detector outlet, the straight pipe length as  
shown in Table 4.3 is required.  
Table 4.3 Required straight pipe length on the upstream side  
L=5D  
L=10D  
(5) Other valves (not fully opened)  
(1) 90°bent  
L
L
L
(2) Tee  
(3) Diffuser  
L
(4) Fully opened sluice valve  
L
L: Required straight pipe length—straight pipe length plus half length of the detector.  
D: Nominal bore size (diameter)  
NOTES  
The length of a reducer, if connected, can be counted as a part of the straight pipe length.  
No straight pipe length is needed on the downstream side. If a butterfly valve is installed downstream of the  
detector, do not let the valve plate protrude into the pipe of the detector  
- 22 -  
6F8A0883  
(2) Pipe Orientation  
The detector may be installed in horizontal, vertical or sloping pipe runs as shown in  
Figure 4.6. However, except for horizontal installation, fluid should flow from lower to  
upper directions. If no air bubble, Vertical down flow application are acceptable under  
pressured piping conditions. See Figure 4.6.  
Flow direction  
(b)  
(a) Horizontal pipe installation  
(b) Vertical pipe installation  
(c) Sloping pipe installation  
Detector  
(c)  
(a)  
Ground surface  
Figure 4.7 Detector Piping Orientation  
The electrodes should be positioned horizontally relative to the ground surface in any piping  
installation. See Figure 4.7.  
Electrodes  
A
A'  
Cross-section A - A'  
Detector  
Ground surface  
Figure 4.8 Installation position of the detector  
- 23 -  
6F8A0883  
(3) Flow Direction  
Install the detector in accordance with the flow direction arrow on the detector. See Figure 4.8.  
Flow direction arrow  
Figure 4.9 Flow direction arrow on the detector  
(4) Preventing an Empty Pipe Condition  
Design an upright pipe run (Figure 4.9) or sufficient head pressure (Fig. 4.10) at the  
downstream detector outlet if there is a possibility of the detector pipe becoming emptied.  
Upright pipe run  
Detector  
Figure 4.10 Detector with an upright pipe run at downstream outlet  
Detector  
Figure 4.11 Detector with sufficient head pressure at downstream outlet  
- 24 -  
6F8A0883  
4.4 Grounding  
CAUTION  
Do not wire cables and replace parts  
Do not work on piping and wiring with wet hands.  
when power is supplied.  
Wet hands may result in electric shock.  
Wiring work and replacing  
parts in the power-on state  
may cause electric shock.  
DON’T  
DON’T  
(1) Grounding of the GF630/LF600F and GF630/LF610F type  
Ground as shown in Figure 4.12. Make the grounding wire as short as possible. Use grounding  
wire material of IV wire 5.5mm2 or more. Do not share a grounding wire with other  
instruments where grounding current may flow. (An independent grounding is preferable.)  
Integral  
Conductive material pipe  
Example: Metal, etc.  
Piping of non-conductive material  
Example: Resin or metal piping whose  
inside is resin-lined, etc.  
Grounding terminal  
Grounding wire  
grounding resistance  
100ohmor less  
grounding resistance  
100ohmor less  
A
grounding ring  
In the case that the piping is conductive material,  
connect the ground cables to the both ends of the  
piping flange.  
In the case that the piping is non-conductive material,  
use grounding rings.  
Figure 4.12 Grounding the GF630/LF600F and GF630/LF610F Type  
Please connect the ground cables  
of detector to piping using the M5 screw  
shown as Figure4.13 as needed.  
(In the case that there are no threaded hole  
with piping, please tap the threaded hole.)  
It is necessary to connect the ground cable  
surely electrically.  
M5  
Ground cable of detector  
Figure4.13 Grounding wire connection  
(Detail of part A)  
- 25 -  
6F8A0883  
(2) Grounding of the GF632 type  
Ground the external grounding terminal of the detector and the FG terminal of the converter (or  
external grounding terminal of the converter) securely (grounding resistance 100ohm or lower).  
Use grounding wire material of IV wire 5.5mm2 or more. Do not share a grounding wire with  
other instruments where grounding current may flow. (An independent grounding is  
preferable.)  
Separate  
If it is difficult to perform grounding work at the detector side because of a pit installation or other  
reasons, use a  
3-core cable for the excitation cable and connect the E terminal of the detector to the E terminal of  
the converter. (The E terminal of the converter is internally connected with the FG terminal and  
the converter case.)  
Ground the FG terminal or grounding terminal of the converter.  
Ground the FG terminal or grounding terminal of the converter.  
A
B
G
E
X
Y
A
B
G
E
X
Y
Converter  
terminal  
block  
Converter  
terminal  
block  
FG  
FG  
Shield twisted  
Shield twisted  
Grounding terminal  
Grounding terminal  
(100 ohm or less  
ground resistance)  
(100 ohm or less  
ground resistance)  
Input signal  
cable  
Input signal  
cable  
Excitation cable  
Excitation cable  
Shield twisted  
Shield twisted  
Grounding terminal  
Grounding terminal  
Detector  
terminal  
block  
Detector  
terminal  
block  
Y
Y
B
E
B
E
X
A
G
A
G
X
(100 ohm or less  
ground resistance)  
Figure 4.14 (a)  
Figure 4.14 (b)  
Wiring between Detector and Converter (For  
grounding the detector, see Figure 4.13 below.)  
Wiring between Detector and Converter (when  
grounidng of the detector is difficult)  
Conductive material piping  
Example: Metal, etc.  
Non-conductive material piping  
Example: Resin product or metal piping whose inside is resin lined  
Grounding terminal  
Grounding wire  
Grounding terminal  
Ground  
cable  
Grounding  
ring  
(100 ohm or less ground resistance)  
(100 ohm or less ground resistance)  
In the case that the piping is conductive material, connect the  
ground cable to the both ends of the piping flange as needed.  
In the case that the piping is non-conductive material, use  
grounding rings.  
Figure 4.15 Grounding the GF632 Type Detector  
- 26 -  
6F8A0883  
5. Wiring  
Safety Precautions for Wiring  
WARNING  
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS LOCATION IS KNOWN  
TO BE NONHAZARDOUS.  
Live part of electric circuit or a high temperature department can cause explosion.  
DON’T  
Do not active live circuits While assembly of all components is not over.  
Protective performance degradation for hazardous location can cause explosion.  
DON’T  
Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the  
Canadian Electrical code for Canada (CEC, CAN/CSA-C22.1) and the drawing  
Appendix 1.  
Unsuitable conduit connections for hazardous location can cause explosion.  
DO  
- 27 -  
6F8A0883  
CAUTION  
Turn off mains power before conducting wiring  
Install a switch and fuse to isolate the  
GF630/LF600F, GF630/LF610F and GF632  
work.  
from mains power.  
Power supply from mains power can  
cause electric shock or circuit  
Wiring while power is applied can cause  
electric shock.  
break-down.  
DO  
DO  
Do not work on piping and wiring with wet  
Ground the LF600F and LF610F independently  
from power equipment. (100 ohm or less ground  
resistance)  
hands.  
Wet hands may result in electric  
Operating this product without grounding  
can cause electric shock or malfunction.  
DO  
shock  
DON’T  
Do not conduct wiring work with bare hands. For the power supply wiring and grounding wiring,  
use crimping terminals with insulated sleeve.  
Remaining electric charge even if  
power is turned off can still cause  
electric shock.  
There is a risk of electric shock due to  
drop-off or loosing, and a risk of fire and  
equipment trouble due to heat generation.  
DON’T  
DO  
Do not modify or disassemble the  
GF630/LF600F, GF630/LF610F and GF632  
The label shown left is placed near the  
power supply terminal on the converter.  
Be alert to electric shock.  
unnecessarily.  
Modifying or disassembling this  
product can cause electric shock,  
malfunction of or damage to this  
DON’T  
product.  
Flowmeter accuracy may be affected by the way wiring is executed. Proceed with correct wiring taking  
the precautions in following pages.  
- 28 -  
6F8A0883  
Notes on wiring  
CAUTION  
(1) The apparatus does not be provided with the cable connections. Please prepare yourself for the cable  
connections which could be used in Division2 hazardous locations.  
The cable lead –in section must be tightened securely to keep air tightness.  
(2) Select the cable runs away from electrical equipment (motors, transformers, or radio  
transmitters) which causes electromagnetic or electrostatic interference.  
(3) Deterioration of flowmeter circuit insulation occurs if the converter interior or cable ends get wet or  
humidified. This in turn causes malfunction of flowmeter or noise problems. Avoid a rainy day if  
the flowmeter is to be installed outdoors. Even indoors, prevent water from splashing over the  
flowmeter. Try to finish the wiring as quickly as possible  
(4) The converter has an arrestor installed inside. Therefore, do not conduct a withstand voltage test  
for the converter. To check the insulation of the converter, use a voltage of 250Vdc or less.  
(5) After wiring, be sure to install the terminal block protection cover.  
(6) Because the excitation cable and flow rate signal cable transmit very delicate signals, pass each of  
them separately through a thick steel conduit tube, keep them away from the large current wiring as  
far as possible, and do not install them in parallel.  
Separate  
5.1 Cables  
Use the kind of cables shown in Table 5.1 to wire the converter.  
Table 5.1 Installation Cables  
Nominal  
cross-section  
al area  
Finished  
outer  
diameter  
Name  
Cable name  
Description  
3-core vinyl sheathed cable or 2-core vinyl  
sheathed cable  
CVV JIS C 3401 or  
equivalent  
Power cable  
2 mm²  
11~13mm  
The number of conductors the cable contains differs depending on the  
specification of the output signal cable.  
Output  
CVV-S JIS -258-C or  
signal cable Use a shielded cable of finished outer diameter 11 to 13mm and equivalent  
nominal cross-sectional area 1.25mm2.  
Flow rate  
signal cable  
2PNCT-S  
JIS C 3327 or  
equivalent  
2-core shielded chloroprene cabtyre cable  
( Rubber covered cable )  
0.75 mm2  
11~13mm  
11~13mm  
Separate  
Separate  
Excitation  
cable  
2PNCT  
JIS C 3327 or  
equivalent  
3-core chloroprene cabtyre cable  
( Rubber covered cable )  
2 mm2  
1.25 m2  
- 29 -  
6F8A0883  
5.2 External Device Connections and Grounding  
For the notes on connecting, wiring and installation of the combined converter, check the model number of  
the combined converter and read the instruction manual of the relevant converter.  
5.3 Notes on Wiring  
5.3.1 Notes on Instrumentation-Converter Wiring  
To avoid 2-point grounding, ground the shield of output cable basically at the receiving side.  
Use a grounding wire of IV wire 5.5mm2 or more. The size of the external grounding terminal screws is M4.  
Do not share a grounding wire with other instruments where grounding current may flow. (An  
independent grounding is preferable.)  
Power cable  
When a 3-core cable is used: Ground with the FG terminal.  
When a 2-core cable is used: Use an external grounding terminal and make the cable as short as possible.  
5.3.2 Notes on Wiring of the Separate type (GF632)  
Separate  
The detector is shipped with a flow rate signal cable and excitation cable. Be sure to use those cables coming  
with the detector.  
Note: When the cable length exceeds 300m, cables may not be supplied. Check whether the  
cable is supplied with the specs.  
The allowable cable length between the detector and converter varies depending on the conductivity of the  
operating fluid. Refer to the instruction manual of the combined detector.  
When connecting with the detector, wire the cables in the order of the excitation cable and flow rate signal  
cable.  
Because the input cables transmit very delicate signals, pass the excitation cable and input signal cable  
separately through a thick steel conduit tube , keep them away from the large current wiring as far  
as possible, and do not install them in parallel.  
When replacing the flow rate signal cable and excitation cable, also refer to the instruction manual of the  
relevant detector. Order the detector terminal box cover packing from Toshiba or a Toshiba distributor.  
- 30 -  
6F8A0883  
5.4 Wiring  
5.4.1 Terminal Treatment of Cables  
Follow the procedures below to treat the terminals (at the converter side) of various cables and install the  
cables to the terminal block. Use appropriate cables based on the description in Section 5.1 "Cables." Crimp  
a round type insulated crimp-type terminal to the end of the cables.  
(1) Power cable, current output cable, digital I/O cables  
The necessary cables should be ordered from the person responsible for the installation. Strip the sheath of  
each conductor as shown in Figure 5.1 and attach a crimping terminal with insulated sleeve to it. The size of  
the crimping terminal is as follows:  
Integral type LF600F and LF610F: M4  
Separate type LF602F and LF612F: M3.5  
Connect the power cable to terminal blocks L1 and L2.  
Connect the current output cable to terminal blocks + and -.  
Connect the digital I/O cable to terminal blocks D1, D01, D02 and COM, as required.  
LF600F and LF610F type: M4  
LF602F and LF612F type: M3.5  
Crimping terminal  
25~45mm  
Figure 5.1 Terminal Treatment of Power Cable, Current Output Cable  
and Digital I/O cable  
(2) Excitation cable  
Separate Strip the sheath from the end of each conductor as shown in Figure 5.2, attach an M3.5 crimping terminal  
with insulated sleeve, and connect it to the terminal blocks X and Y. Connect the red conductor to terminal  
block E.  
M3.5 crimping terminal  
X Black  
E Red  
Y White  
25~45mm  
Figure 5.2 Terminal Treatment of Excitation Cable  
- 31 -  
6F8A0883  
(3) Connecting the input signal cable  
Separate  
Strip the sheath from the end of each conductor of a 2-core individually shielded cable as shown in Figure  
5.4. Twist those shields and cover them with a thermal contraction tube or vinyl tube not to make contact  
with the case or core wires. Then attach an M3.5 crimping terminal with insulated sleeve as shown in Figure  
5.3. Connect a crimping terminal to the A and B terminals on the terminal block and connect to each G  
terminal of the detector and converter.  
M3.5 crimping terminal  
Thermal contraction tube or vinyl tube  
A Black  
G Shield  
B White  
25~45mm  
Figure 5.3 Terminal Treatment of Flow Rate Signal Cable  
Notes on signal cable shield processing work  
When stripping an external sheath, intermediate and insulated sheath, be careful not to scratch or cut the  
internal conductors and shield mesh. Do not disjoint the shield mesh but treat it as shown in Figure 5.9.  
a. Open the shield mesh with a pair of tweezers or the like.  
Coated wire  
b. Pull out the internal coated wires from the hole of the  
shielded mesh.  
Shield mesh  
c. Pull out all internal coated wires and extend the shield mesh  
wire.  
Figure 5.4 Treating the Signal Cable Shield Mesh  
- 32 -  
6F8A0883  
5.4.2 Cable Connection  
Separate  
Connect and install the terminal-treated cables to the terminal block.  
*Connect the cables to the terminal block securely. A loose connection may cause incorrect  
measurement. After connecting a cable, try to pull it to check whether it has been connected securely.  
(1)Referring to combined converter's manuals of "Connections and Grounding", connect each cable to the  
terminal block. Tighten the screws of the terminal block tightly to ensure the secure connection. A loose  
connection may cause incorrect measurement. After connecting a cable, try to pull it to see whether it has  
been connected securely.  
Phillips screwdriver  
* The appropriate torque for tightening  
the terminal board screw is 1.2 N.m.  
Terminal block  
Figure 5.6 Connecting a Cable to Terminal Block  
(2) Attach the terminal box cover . To keep the seal, tighten securely the cover.  
- 33 -  
6F8A0883  
6. Operation  
CAUTION  
Do not touch the terminal board when  
power is supplied.  
Touching the terminal board  
Do not touch the main body when high  
temperature fluid is being measured.  
The fluid raises the main body  
temperature and can cause burns.  
DON’T  
when power is supplied can  
cause electric shock.  
DON’T  
Preparatory check  
Follow the procedure described below to prepare before starting the flow measurement (described with  
regard to the entire flowmeter).  
System Check  
Check the items listed below  
Check the wiring between the converter and related instruments.  
Make sure all the bolts of connection flanges on which the flowmeter is mounted securely  
tightened.  
Make sure the direction of flow arrow is in accordance with actual flow.  
Make sure the flowmeter is grounded with 100 ohm or less ground resistance.  
Make sure the housing covers are securely tightened.  
Placing System On-Stream  
Let the fluid go through the detector pipe. (Note 1)  
When the detector is filled with the fluid, stop the fluid and keep it still in the detector pipe.  
Supplying Electric Power  
Make sure the power supply is as specified.  
Checking Converter Parameters  
Check the configuration parameter settings. Refer to combined converter's manual.  
Zero Adjustment  
Wait for 30 minutes to warm up the flowmeter. Then making sure the fluid holds still in the  
detector pipe, starts the zero adjustment. Refer to combined converter's manual.  
On-line measurement  
After checking the items and conducting the zero adjustment as listed above, let the fluid go  
through the detector pipe. Output (4–20 mA dc) directly proportional to the flow rate can be  
obtained.  
Note 1: If the detector pipe is not filled with the fluid to be measured, the flow rate will be  
indefinite and unable to be measured. Before using the flowmeter , be sure to fill the  
detector pipe the fluid to be measured.  
- 34 -  
6F8A0883  
7. Maintenance and Troubleshooting  
Safety precaution for Maintenance and Troubleshooting  
WARNING  
Do not disconnect while circuit is live unless location is known to be nonhazardous.  
Live part of electric circuit or a high temperature department can cause explosion.  
DON’T  
Do not modify or disassemble the enclosure.  
Strength degradation and defects of enclosure can cause explosion.  
DON’T  
Do not use parts of other products.  
Protective performance degradation for hazardous location can cause explosion.  
DON’T  
Do not live circuits While assembly of all components is not over.  
Protective performance degradation for hazardous location can cause explosion.  
DON’T  
Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the  
Canadian Electrical code for Canada (CEC, CAN/CSA-C22.1) and the drawing  
Appendix 1.  
Unsuitable conduit connections for hazardous location can cause explosion.  
DO  
CAUTION  
Do not conduct wiring work when  
Do not touch the GF630/LF600F,  
GF630/LF610F and GF632 main body  
when high temperature fluid is being  
measured.  
power is applied.  
Wiring while power is applied  
The fluid raises the main body  
can cause electric shock.  
temperature and can cause burns.  
DON’T  
DON’T  
- 35 -  
6F8A0883  
7.1 Maintenance  
Cleaning  
Adhesion might be created in the detector over a long period of time when used on certain  
materials.  
Try to confirm whether to cause the adhesion in the detector pipe when the phenomenon is seen, and and  
an abnormality (ex. decreasing indication, etc.) is confirmed.  
Please clean with a soft brush etc. and remove any unnecessary build up inside the meter. When using it in the  
line to which such a phenomenon occurs easily, it is recommended that the detector pipe be cleaned regularly.  
Use new gaskets when reinstalling the flowmeter detector in the pipeline.  
Mag-Prover Built-In Calibrator  
The converter LF60*F and LF61*F has a built-in reference signal calibration and verification circuit that allows  
you to re-verify the original magmeter flow lab calibration without the need for external devices. This reference  
signal can be used to check the zero and span of the converter for the purpose of instrumentation  
maintenance or periodical inspection. Refer to combined converter's manual.  
Operative life  
The design operative life of this flowmeter is 10 years from the date of shipment at a standard use condition .  
The life of the flowmeter differs depending on the environmental conditions and the way it was used. To extend  
the life of the flowmeter, inspect the flowmeter periodically and clean or replace components if necessary.  
Product disposal  
The electromagnetic flowmeter must be disposed of, according to the rules and regulations of your local  
government.  
Especially if you dispose of electrolytic capacitors to replace parts, have it done by an agency which is  
licensed to handle industry waste materials.  
- 36 -  
6F8A0883  
7.2 Troubleshooting  
If a problem occurs while using the GF630/LF600F, GF630/LF610F and GF632, follow the flowcharts  
described below.  
You may find a way to solve the problem. The flowcharts are based on three symptoms (1) to (3).  
If you cannot solve the problem, contact your nearest Toshiba representative.  
7.2.1 Flow rate is not indicated  
START  
NO  
Use the correct power supply for each  
device.  
Are power supplies correct  
for each device?  
YES  
Install the cables correctly.  
Refer to Chapter 5, “Wiring.”  
Are power and I/O cables  
installed correctly?  
NO  
YES  
YES  
Replace the fuse with a new one.  
Is the fuse not burnt?  
NO  
Set correctly.  
Refer to combined converter's manual.  
NO  
NO  
Is the flow range correctly set?  
YES  
Is the flow direction match  
with the arrow mark on the  
detector?  
Install the detector correctly.  
Refer to Chapter 4, “Installation”  
YES  
Contact your nearest Toshiba  
representative.  
- 37 -  
6F8A0883  
7.2.2 Flow rate indicated is not correct  
START  
NO  
Set correctly.  
Refer to combined converter's manual.  
Is the flow range correctly  
set?  
YES  
Perform the zero adjustment.  
NO  
Is zero point correctly set?  
Refer to combined converter's manual.  
YES  
Is the excitation current  
NO  
Set correctly.  
Refer to combined converter's manual.  
value as stated on the  
flow direction tag?  
YES  
Is the inside wall of detector  
pipe contaminated?  
YES  
NO  
Clean the inside of the detector pipe.  
NO  
Design the output circuit so that the  
output load resistance is less than  
750 ohm.  
Is the output load resistance  
as specified?  
YES  
Are there two load  
resistors connected to  
the output in parallel?  
YES  
Connect the two load resistors in  
series, if necessary.  
NO  
Is accuracy calculated as follows?  
NO  
Calculate as shown on the left.  
(Measured flow rate)-(Actual flow rate)  
×100%  
Actual flow rate  
YES  
Contact your nearest Toshiba  
representative.  
- 38 -  
6F8A0883  
7.2.3 Flow rate indication is not stable  
START  
Is power supply voltage  
within the specified range?  
NO  
NO  
NO  
Use a power supply within the  
specified range.  
YES  
Connect each cable securely to the  
terminal board.  
Are cables securely connected?  
YES  
Ground the flowmeter with a copper  
braid or wire(5.5 mm² minimum) to a  
good earth ground.  
Is the flowmeter grounded  
with 100Ωor less ground  
resistance?  
(100ohm or less ground resistance)  
YES  
Design piping so that the detector  
pipe is filled with fluid all the time.  
NO  
Is the detector pipe filled  
with fluid?  
YES  
Design piping so that the fluid does  
not carry bubbles.  
YES  
Is the fluid carrying bubbles?  
NO  
Is there high-voltage or large  
current cable or equipment  
near the flowmeter?  
Install the flowmeter away from  
equipment producing electromagnetic  
or electro- static interference.  
YES  
NO  
Note 1: If the detector tube is not filled with  
operating fluid, the flow is indefinite and  
measurement is impossible. Be sure to fill  
the detector tube with operating fluid  
before starting measurement.  
Contact your nearest Toshiba  
representative.  
- 39 -  
6F8A0883  
8. Principle of Operation  
The operating principle of the electromagnetic flowmeter is based on Faraday's Law of electromagnetic  
induction and it is designed to measure the volumetric flow rate of fluid. An insulated pipe of diameter D is  
placed vertically to the direction of a magnetic field with flux density B (see Figure 8.1). When an electrically  
conductive fluid flows in the pipe, an electrode voltage E is induced between a pair of electrodes placed at right  
angles to the direction of magnetic field. The electrode voltage E is directly proportional to the average fluid  
velocity V.  
The following expression is applicable to the voltage.  
E = induced electrode voltage [V]  
E = K × B × D × V [V] ........ (Eq. 8.1)  
K = constant  
B = magnetic flux density [T]  
D = meter pipe diameter [m]  
Volumetric flow rate Q [m3/s] is:  
V = fluid velocity [m/s]  
π × D²  
Q =  
× V ................(Eq. 8.2)  
4
Using the Equation 8.1 and 8.2  
4
E = K × B × D ×  
× Q  
π × D²  
× Q ............(Eq. 8.3)  
4 × K × B  
E =  
π × D  
Therefore, volumetric flow rate is directly proportional to the induced voltage.  
Square-Wave Excitation  
E
V
B
D
Figure 8.1 Principle of Operation  
The GF630/LF600F, GF630/LF610F and GF632 use the square-wave excitation method, which provides long-term  
stable operation. With square-wave excitation, the GF630/LF600F, GF630/LF610F and GF632 offers reliable  
measurement without being affected by electrostatic or electromagnetic interference, or electrochemical  
polarization between the electrodes and the fluid to be measured.  
- 40 -  
6F8A0883  
9. Specifications  
The flowmeter specifications and the type specification code used when ordering the flowmeter  
are described in this chapter.  
9.1 Specifications  
Meter size: 1/2", 1", 1 1/4", 1 1/2", 2", 2 1/2", 3", 4", 5", 6", 8", 10", 12", 14", 16", 18", 20" and 24"  
(15, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500 and 600 mm)  
Measuring range: 0 –1.0 ft/s to 0 – 32.8 ft/s (0 – 0.3 m/s to 0 –10 m/s).  
0 – 0.3 ft/s to 0 – 1.0 ft/s (0 – 0.1 m/s to 0 – 0.3 m/s) range is available optionally for meter  
size 1/2” to 18” (15 to 450 mm).  
Accuracy: (Accuracy when combined with the converter)  
< 1/2” to 18”( 15mm to 450 mm ) >  
±0.2 % of Rate *1  
*1 This pulse output error result is established under standard operating conditions at Toshiba's flow  
calibration facility, Fuchu Japan. (NIST Traceable).  
*1 Individual meter measurement error may vary up to ±0.5% of Rate at 1.64 ft/s (0.5m/s) or more and  
±0.3% of rate ±0.039 inch/s (1mm/s) at 1.64 ft/s or less.  
*1 Current output: plus ± 8µA (0.05% of span).  
*1 Refer to individual calibration data for each individual meter's measurement error.  
< 20” to 24” ( 500mm to 600mm ) >  
± 0.3 % of Rate *2  
*2 This pulse output error result is established under standard operating conditions at Toshiba’s flow  
calibration facility, Fuchu Japan.  
*2 Individual meter measurement error may vary up to ±0.5 % of Rate at 3.28 ft/s (1.0 m/s) or more  
and ± 0.3% of Rate ±0.079 inch/s (2 mm/s) at 3.28 ft/s (1.0 m/s) or less.  
*2 Current output: plus ± 8µA (0.05% of span.)  
*2 Refer to individual calibration data for each individual meter’s measurement error.  
Fluid conductivity:  
Fluid temperature:  
5 µS/cm minimum  
–20C to +100C (–4F to 212F) ・・・FEP  
–20C to +120C (–4F to 248F) ・・・PTFE  
–20C to +60C (–4F to 140F) ・・・Polyurethane (PU)  
–10C to +60C (14F to 140F) ・・・Chloroprene rubber(CR)  
Ambient temperature: –20C to + 60C (–4F to 140F)  
Storage temperature:  
–25C to +65C (–13F to 149F)  
Storage humidity:  
Fluid pressure:  
10 to 90%RH (no condensation)  
0 to 1MPa (0 to 150 psi, or 0 to 10 bar)  
(To be within the applicable flange limitation)  
- 41 -  
6F8A0883  
Connection flange standard: See Table 9.2 Type Specification Code.  
Principal materials  
Case  
Carbon steel  
Lining  
FEP (standard for meter sizes 15 to 250mm)  
PTFE (standard for meter sizes 300 to 600mm)  
Polyurethane (PU) (standard for meter sizes 15 to 400mm)  
Chloroprene rubber (CR) (standard for meter sizes 450 to 600mm)  
316L stainless steel (Polyurethane, Chloroprene rubber)  
Hastelloy C equivalent (FEP, PTFE)  
Electrodes  
Grounding rings None (standard for Polyurethane, FEP and CR ) (Option: See chapter 10.3)  
316 stainless steel (standard for PTFE)  
See Table 9.2 Type Specification Code for optional materials and other related information.  
Coating: Corrosion resistant resin coating (std.), pearl-gray colored  
Structure: IP67 and NEMA 4X  
Cable connection port: 1/2-14NPT male screw for both signal cable and exciting cable  
Separate  
Separate  
Cable length: Allowable cable length between the converter and the detector varies with the electrical  
conductivity of fluid. See Figure 9.1  
300  
200  
100  
ケー  
50  
30  
20  
10  
5
3
3
5
10 20 30 50 100 200  
Electrical conductivity (μS/cm)  
Figure 9.1 Electrical Conductivity vs. Cable Length  
- 42 -  
6F8A0883  
Calibration range :  
It calibration by standard Range shown in the table below when Range is not specified.  
It calibration when there is specification by flowing quantity Range in which the customer is  
specified. Is this specification Range flowing quantity of Figure 9.1. Please confirm becoming  
in the upper bound value from the flow velocity chart.  
Standard Flow range  
Meter size  
Flow rate (m3/h)  
Flow velocity (m/s)  
3.144  
15 mm  
25mm  
2
1/2”  
1”  
6
3.395  
32mm  
10  
3.454  
1 1/4”  
1 1/2”  
2”  
40mm  
15  
3.316  
50mm  
25  
3.537  
65mm  
40  
3.348  
2 1/2”  
3”  
80mm  
60  
3.316  
100mm  
125mm  
150mm  
200mm  
250mm  
300mm  
350mm  
400mm  
450mm  
500mm  
600mm  
100  
150  
200  
300  
600  
900  
1200  
1600  
2500  
3000  
3.537  
4”  
3.395  
5”  
3.144  
6”  
2.653  
8”  
3.395  
10”  
12”  
14”  
16”  
18”  
20”  
24”  
3.537  
3.465  
3.537  
4.366  
4.244  
4000  
3.930  
- 43 -  
6F8A0883  
To select the meter size: See Figure 9.2 and find meter sizes within the velocity of 0.1 to 10 m/s for a specified  
full-scale (measuring range high limit) flow. Select one that has its full-scale velocity  
between 1 and 3 m/s.  
Make sure the full-scale flow rate used for the final planning stage stays  
within 10 m/s in terms of flow velocity.  
300  
250  
200  
350  
400  
100  
40 65  
32  
450  
mm  
10  
15 25  
50 80 150  
1
0.3  
0.1  
10-2  
10-1  
1
101  
102  
103  
104  
3
Flow volume (m /h)  
Figure 9.2 Flow volume  
SI Unit  
Flow volume  
Flow velocity range  
0.3m/s 1m/s  
0.06361(m3/h) 0.1908(m3/h) 0.6361(m3/h) 6.361(m3/h)  
Meter size  
15mm  
0.1m/s  
10m/s  
1/2”  
1”  
1 1/4”  
1 1/2”  
2”  
2 1/2”  
3”  
4”  
5”  
6”  
8”  
10”  
12”  
14”  
16”  
18”  
20”  
24”  
25mm  
32mm  
40mm  
50mm  
65mm  
80mm  
100mm  
125mm  
150mm  
200mm  
250mm  
300mm  
350mm  
400mm  
450mm  
500mm  
600mm  
0.1767  
0.2895  
0.4523  
0.7067  
1.195  
1.809  
2.827  
4.417  
6.361  
11.31  
17.67  
25.45  
34.64  
45.23  
57.25  
0.5301  
0.8686  
1.357  
2.120  
3.583  
5.428  
8.482  
13.25  
19.08  
33.93  
53.01  
76.34  
103.9  
135.7  
171.7  
212.1  
305.4  
1.767  
2.895  
4.523  
7.067  
11.95  
18.09  
28.27  
44.17  
63.61  
113.1  
176.7  
254.5  
346.4  
452.3  
572.5  
706.9  
1018  
17.67  
28.95  
45.23  
70.67  
119.5  
180.9  
282.7  
441.7  
636.1  
1131  
1767  
2545  
3464  
4523  
5725  
7069  
10180  
- 44 -  
6F8A0883  
US Unit  
Flow velocity range  
3ft/s  
Flow volume  
Meter size  
0.328ft/s  
0.98ft/s  
10ft/s  
32.8ft/s  
1/2 inch  
0.2801 gal/min 0.8403 gal/min  
2.561 gal/min  
7.115 gal/min  
11.66 gal/min  
18.21 gal/min  
28.46 gal/min  
48.09 gal/min  
72.85 gal/min  
113.8 gal/min  
177.9 gal/min  
256.1 gal/min  
455.3 gal/min  
711.5 gal/min  
1,025 gal/min  
1,394 gal/min  
1,821 gal/min  
2,305 gal/min  
2,846 gal/min  
8.538 gal/min  
23.72 gal/min  
38.86 gal/min  
60.71 gal/min  
94.86 gal/min  
160.3 gal/min  
242.8 gal/min  
379.4 gal/min  
592.9 gal/min  
853.8 gal/min  
1,518 gal/min  
2,372 gal/min  
3,415 gal/min  
4,648 gal/min  
6,071 gal/min  
7,684 gal/min  
9,486 gal/min  
28.01 gal/min  
77.81 gal/min  
127.5 gal/min  
199.2 gal/min  
311.2 gal/min  
526.0 gal/min  
796.7 gal/min  
1,245 gal/min  
1,945 gal/min  
2,801 gal/min  
4,980 gal/min  
7,781 gal/min  
11,200 gal/min  
15,250 gal/min  
19,920 gal/min  
25,210 gal/min  
31,120 gal/min  
44,820 gal/min  
1 inch  
1 1/4 inch  
1 1/2 inch  
2 inch  
0.7781 gal/min  
1.275 gal/min  
1.992 gal/min  
3.112 gal/min  
5.260 gal/min  
7.967 gal/min  
12.45 gal/min  
19.45 gal/min  
28.01 gal/min  
49.80 gal/min  
77.81 gal/min  
112.0 gal/min  
152.5 gal/min  
199.2 gal/min  
252.1 gal/min  
-
2.334 gal/min  
3.824 gal/min  
5.975 gal/min  
9.337 gal/min  
15.78 gal/min  
23.90 gal/min  
37.35 gal/min  
58.35 gal/min  
84.03 gal/min  
149.4 gal/min  
233.4 gal/min  
336.1 gal/min  
457.5 gal/min  
597.5 gal/min  
756.3 gal/min  
933.7 gal/min  
1,344 gal/min  
2 1/2 inch  
3 inch  
4 inch  
5 inch  
6 inch  
8 inch  
10 inch  
12 inch  
14 inch  
16 inch  
18 inch  
20 inch  
24 inch  
-
4,098 gal/min 13,660 gal/min  
- 45 -  
6F8A0883  
9.2 Type Specification Code  
Table 9.2 Type Specification Code  
Model number  
Specification code  
Lining  
Contents  
1
G
2
F
3
6
4
3
5
6
7
8
9
10 11 12  
Flanged connection electromagnetic flowmeter detector  
0
2
Integral type  
Separate type  
● ● ● ●  
● ● ● ●  
Meter size  
15mm  
0
0
0
0
0
0
0
1
1
1
2
2
3
3
4
4
5
6
1
2
3
4
5
6
8
0
2
5
0
5
0
5
0
5
0
0
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - ● -  
● - - ●  
● - - ●  
● - - ●  
- ● - ●  
- ● - ●  
- ● - ●  
25mm  
32mm  
40mm  
50mm  
65mm  
80mm  
100mm  
125mm  
150mm  
200mm  
250mm  
300mm  
350mm  
400mm  
450mm  
500mm  
600mm  
Connection flange standard  
ANSI 150  
A
● ● ● ●  
Lining  
U
C
F
Polyurethane (PU)  
Chloroprene  
FEP  
● -  
- -  
● -  
P
PTFE (*NOTE 1)  
Electrode Material  
B
F
316L stainless steel  
Hastelloy C equivalent  
● ●  
- -  
- -  
● ●  
Flow and calibration velocity range  
A
B
C
0.3 to 10m/s (standard range calibration)  
0.3 to 10m/s(specified range calibration)  
0.1 to 10m/s(specified range calibration)  
● ● ● ●  
○ ○ ○ ○  
○ ○ ○ ○  
1 Standard  
● ● ● ●  
●:Standard  
○:Option : Unselectable  
NOTE  
1) The grounding rings are provided to PTFE Lining, which material is 316 stainless steel.  
- 46 -  
6F8A0883  
10. Outline Dimensions  
10.1 Outline dimensions of GF630/LF600F and GF630/LF610F  
(1) Meter size of 1/2 inch to 6 inch (15mm to 150mm)  
Integral  
Mass Approx.  
L3 ±5(mm)  
L2±5  
(mm)  
L1±6  
(kg)  
Meter Size  
(mm)  
ANSI 150  
264  
ANSI 150  
15mm  
25mm  
1/2"  
1"  
200  
200  
200  
200  
200  
200  
200  
250  
250  
300  
220  
230  
235  
240  
250  
263  
268  
279  
299  
314  
7
284  
8
32mm 1 1/4"  
40mm 1 1/2"  
294  
9
304  
10  
13  
15  
19  
25  
32  
38  
50mm  
2"  
326  
65mm 2 1/2"  
351  
80mm  
100mm  
125mm  
150mm  
3"  
4"  
5”  
6"  
363  
393  
426  
453  
NOTES  
(1) For the detail dimention of conveter, check the converter LF600F and LF610F instruction manual.  
- 47 -  
6F8A0883  
(2) Meter size of 8 inch to 24 inch (200mm to 600mm)  
Grounding ring  
( PTFE Lining only)  
Mass Approx. (kg)  
*1  
L3 ±5(mm)  
L1±6  
L2±5  
(mm)  
*2  
PU, CR and FEP  
PTFE  
Meter Size  
(mm)  
ANSI 150  
510  
562  
ANSI 150  
ANSI 150  
200mm  
8"  
350  
450  
500  
550  
600  
600  
600  
339  
359  
384  
406  
434  
456  
481  
58  
250mm  
300mm  
350mm  
400mm  
450mm  
500mm  
10"  
12"  
14"  
16"  
18"  
20”  
85  
625  
124  
148  
182  
200  
230  
132  
158  
195  
212  
244  
673  
732  
774  
830  
600mm  
24”  
600  
536  
942  
317  
336  
NOTES  
*1) L1 of PTEF Lining contains the thickness of grounding rings.  
*2) Mass of PTFE Lining contains the mass of grounding rings.  
(1) For the detail dimention of conveter, check the converter LF600F and LF610F instruction manual.  
- 48 -  
6F8A0883  
10.2 Outline dimensions of GF632  
(1) Meter size of 1/2 inch to 6 inch (15mm to 150mm)  
Separate  
Mass  
Approx. (kg)  
L3 ±5(mm)  
L2±5  
(mm)  
L1±6  
Meter Size  
(mm)  
ANSI 150  
216  
ANSI 150  
15mm  
25mm  
1/2"  
1"  
200  
200  
200  
200  
200  
200  
200  
250  
250  
300  
172  
182  
187  
192  
202  
215  
220  
231  
251  
266  
5
236  
6
32mm 1 1/4"  
40mm 1 1/2"  
246  
7
256  
8
50mm  
2"  
278  
11  
13  
17  
23  
30  
36  
65mm 2 1/2"  
303  
80mm  
100mm  
125mm  
150mm  
3"  
4"  
5"  
6"  
315  
345  
378  
405  
- 49 -  
6F8A0883  
(2) Meter size of 8 inch to 24 inch (200mm to 600mm)  
Grounding ring  
( PTFE Lining only)  
Mass Approx. (kg)  
PU, CR and FEP  
*1  
*2  
PTFE  
L3 ±5(mm)  
ANSI 150  
462  
L2±5  
(mm)  
L1±6  
Meter Size  
200m  
(mm)  
ANSI 150  
ANSI 150  
8"  
350  
450  
500  
550  
600  
600  
600  
600  
291  
311  
336  
358  
386  
408  
433  
488  
56  
m
250m  
m
300m  
m
350m  
m
400m  
m
450m  
m
500m  
m
600m  
m
10"  
12"  
14"  
16"  
18"  
20"  
24"  
514  
577  
625  
684  
726  
782  
894  
83  
122  
146  
180  
198  
228  
315  
130  
156  
193  
210  
242  
334  
*1) L1 of PTEF Lining contains the thickness of grounding rings.  
*2) Mass of PTFE Lining contains the mass of grounding rings.  
- 50 -  
6F8A0883  
10.3 Outline dimensions of Grounding ring  
*1  
Option for Polyurethan, CR and FEP  
Material : SUS316  
D1  
D2  
N (Number of tabs)  
T
Meter size  
ANSI 150 (Unit: inch)  
JIS 10K (Unit: mm)  
inch  
mm  
ΦD1  
ΦD2  
T
N
ΦD1  
ΦD2  
T
N
1/2  
1
15  
25  
1.65  
2.36  
0.63  
1.06  
0.16  
0.16  
0.16  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
0.12  
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
42  
60  
16  
27  
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
4
1-1/4  
1-1/2  
2
32  
2.76  
1.34  
70  
34  
40  
3.03  
1.65  
77  
42  
50  
3.74  
2.05  
95  
52  
2-1/2  
3
65  
4.69  
2.44  
115  
125  
150  
185  
215  
265  
325  
372  
416  
479  
534  
589  
691  
67  
80  
5.08  
3.03  
82  
4
100  
125  
150  
200  
250  
300  
350  
400  
450  
500  
600  
5.91  
4.09  
104  
129  
154  
204  
255  
305  
333  
384  
433  
483  
584  
5
7.28  
5.08  
6
8.46  
6.06  
8
10.43  
13.11  
15.59  
17.32  
19.80  
21.34  
23.58  
27.95  
8.03  
10  
12  
14  
16  
18  
20  
24  
10.04  
12.01  
13.11  
15.12  
17.05  
19.02  
22.99  
*1) When the grounding ring will apply to the FEP lining, please attach the gasckets between the  
grounding ring and lining. (Refer to Fig 4.4.)  
- 51 -  
6F8A0883  
Appendix 1  
1-1 A system block diagram for GF630/LF600F and GF630/LF610F  
- 52 -  
6F8A0883  
1-2 A system block diagram for GF632  
- 53 -  
6F8A0883  
USER'S FORM  
NOTES  
Write down the address and phone number of the distributor from which you purchased this product,  
the product code, SER.NO. and so on.  
Distributor Address  
Name  
Phone number (  
) -  
Product code  
SER.NO.  
GF  
- 54 -  

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