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.
Download from Www.Somanuals.com. All Manuals Search And Download.
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.
－ ２ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.
DON’T
DON’T
„ Do not use parts of other products.
Protective performance degradation for hazardous location can cause explosion.
DON’T
„ Do not touch live circuits until 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
－ ３ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.
－ ４ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.
－ ５ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.
－ ６ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.
－ ７ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ ８ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ ９ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
2. Overview
The GF630/LF600F, GF630/LF610F and GF632 electromagnetic flowmeter can be use in the
following hazardous (classified) locations.
ClassⅠ, Division 2, Groups A, B, C and D,
ClassⅡ, 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.
－ １０ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.)
－ １１ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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.)
－ １２ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
Don’t connect wiring to this terminal.
Figure 3.2.2 Terminal Block of GF632
－ １３ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ １４ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ １５ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ １６ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
(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
－ １７ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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
－ １８ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
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 60ﾟC (140ﾟF).
If the ambient temperature goes above 60ﾟC (140ﾟF), 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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
Table 4.1 Bolt length and Nut tightening torque
ANSI class 150
Machine Bolts
Tightening
torque
[N･m] *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[N･m] is 0.7376 [ft･lbf].
－ ２０ －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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)
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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
–20ﾟC to +100ﾟC (–4ﾟF to 212ﾟF) ･･･FEP
–20ﾟC to +120ﾟC (–4ﾟF to 248ﾟF) ･･･PTFE
–20ﾟC to +60ﾟC (–4ﾟF to 140ﾟF) ･･･Polyurethane (PU)
–10ﾟC to +60ﾟC (14ﾟF to 140ﾟF) ･･･Chloroprene rubber(CR)
Ambient temperature: –20ﾟC to + 60ﾟC (–4ﾟF to 140ﾟF)
Storage temperature:
–25ﾟC to +65ﾟC (–13ﾟF to 149ﾟF)
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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
ブ
ル
30
20
許
容
長
さ
10
5
3
3
5
10 20 30 50 100 200
Electrical conductivity (μS/cm)
Figure 9.1 Electrical Conductivity vs. Cable Length
－ ４２ －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
Appendix 1
1-1 A system block diagram for GF630/LF600F and GF630/LF610F
－ ５２ －
Download from Www.Somanuals.com. All Manuals Search And Download.
６Ｆ８Ａ０８８３
1-2 A system block diagram for GF632
－ ５３ －
Download from Www.Somanuals.com. All Manuals Search And Download.
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 －
Download from Www.Somanuals.com. All Manuals Search And Download.
Download from Www.Somanuals.com. All Manuals Search And Download.
|