LF494/LF610
LF494/LF612
Field Intelligent Device Series
Sanitary Electromagnetic Flowmeter
1S to 4S (25 to 100 mm)
Introduction
Sanitary electromagnetic flowmeters LF490 series are
designed for applications handling food and beverages.
Sanitary flowmeters must be structured in such a way
that operation and handling is simple, easy and
thorough for the purpose of sanitary control such as
cleaning (CIP/SIP), sterilization and drying. The
sanitary flowmeter has features provided with normal
electromagnetic flowmeters and by using sanitary
fittings for pipeline connections fluid does not remain
in any place along the detector pipeline. Therefore, it is
fit for flowrate measurement for food and beverages.
The electromagnetic flowmeter uses Faraday’s Law of
electromagnetic induction to measure the process flow.
The device consists of two units: a detector, through
which the fluid to be measured flows and in which
low-level signals proportional to flow rates are
obtained; and a converter, which supplies excitation
current to the detector, and amplifies the signals from
the detector and then processes and converts the
signals into the 4–20mAdc current signal or
LF490/LF610
LF494/LF610F
LF490
LF494
LF612
LF612F
Figure2. LF490 series flowmeters
Certification
number
communication signal. With the unique patented
Mount-Anywhere magnetic field distribution
Z01207
technology, the meter is highly immune to upstream
flow disturbances. Combined with a multi-functional
converter LF610 (combined type) or LF612 (separate
type) equipped with its patented Noise-Sentry original
noise-suppression circuit and advanced algorithms.
The LF490 has a very high tolerance to noise, giving
the unit a very stable output even for slurry fluid
measurement. IR (Infrared) switches enable parameter
setting of the converter without removing the cover.
Flow direction can be set in either way, and its unique
128 x 128 dot matrix LCD display allows the LCD to
be rotated electronically to 90, 180 and 270 degrees
without opening the cover.
The AF900 hand-held terminal (HART*1
communicator) can be used to communicate with the
flowmeter from a remote place. PROFIBUS-PA*2
interface is available as an option.
*1: HART protocol (Highway Addressable Remote
Transducer) is a communication protocol for industrial
sensors recommended by the HCF (HART
Communication Foundation).
*2: PROFIBUS is the communication protocol for factory
and process automation that the PROFIBUS
Organization recommends. Instead of analog control
with a conventional analog signal (4-20mA), it is the
fieldbus which digitizes all signals. Flowmeters support
PROFIBUS-PA.
Converter
Power
supply
Converter
Signal cable
Terminal box
I/O
Power supply
Detector
I/O
Excitation cable
Detector
Separate type
LF490/LF612
LF494/LF612F
Combined type
LF490/LF610
LF494/LF610F
Figure1. Configuration
TIC-LF494B
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TIC-LF494B
ꢀModel LF610 and LF612 converters
• Converter failure alarm output
Note 1: Two outputs (DO1 and DO2) are needed
for 4-range switching and forward/reverse
2-range switching.
Input signals
Analog signal — the voltage signal from detector,
proportional to process flow rate (for LF612
separate type converter).
Note 2: Normal Open (default set) or Normal
Close is selected for alarm outputs when
programming.
Digital input DI (opt.)
Signal type: 20 to 30Vdc voltage signal
Input resistance: 2.7kΩ
When power failure occurs, unit will be fault to
Normal Open.
Number of inputs: one point
Communications output:
DI function — One of the following functions
• HART (std.) — Digital signal is superimposed
can be assigned to the optional DI signal.
on 4–20mAdc current signal as follows:
Conforms to HART protocol
Load resistance: 240 to 750Ω
Range switching — Selects either the higher or
lower range in the unidirectional or
bidirectional 2-range setting.
Load capacitance: 0.25µF maximum
Load inductance: 4mH maximum
• PROFIBUS (opt.)
Totalizer control — Starts and stops the built-in
totalizer.
Fixed-value outputs —Outputs fixed-values for
Protocol : PROFIBUS-PA
Baud rate : 31.25kbps
Bus voltage : 9-30VDC
current and pulse outputs.
Zero adjustment — Executes zero adjustment
(on-stream at zero flow rate).
Consumption electric current of bus:less than 16mA
Manufacture Ident-No. : 093BHEX
Standard Ident-No. : 9740HEX
Slave address : 0-126 (Default address is 126)
Profile : Profile Ver.3.01 for Process Control
Devices
Output signals
Current output:
4–20mAdc (load resistance 0 to 750Ω)
Note: The current output cannot be used with
the PROFIBUS-PA ccommunication.
Digital outputs — One point (std.) and one more
Function blocks : AI(Flow)×1 , Totalizer×1
point is optionally available as follows.
Digital output DO1 (std.):
LCD display: Full dot-matrix 128×128 dot LCD
display (back-light provided)
Output type: Transistor open collector
Number of outputs: One point
The data on the LCD inside the converter can
rotate to 90, 180, and 270 degrees by a software,
without rotating the indicator itself. (Combined
type only)
Output capacity: 30Vdc, 200mA maximum
Digital output DO2 (opt.):
Output type: Solidstate relay output (non
polarity)
Parameter settings — Parameters can be set as
follows:
Number of outputs: One point
Output capacity: 150Vdc, 150mA maximum
or 150Vac (peak to peak), 100mA maximum
• IR Switches: Three key switches are provided to
set configuration parameters.
• Digital communication: The AF900 hand-held
terminal or PROFIBUS is needed to set
parameters.
DO1 and DO2 functions — One of the following
functions can be assigned to DO1 (std.) and/or
DO2 (opt.)
• Pulse output (available only for DO1,DO2)
Pulse rate: 3.6 to 36,000,000 pulses/hr (DO1)
•Zero adjustment: Zero point adjustment can be
started by pressing the switch in the converter.
3.6 to
360,000 pulses/hr (DO2)
•Damping: 0.5 to 60 seconds (selectable in one
second increments)
(Over 3,600,000 pulses/hr, auto-setting)
Pulse width: 0.5 to 500ms (but less than half of
the period for 100% flow rate)
Note: The same and simultaneous pulse is not
available between DO1 and DO2.)
• Multi-range selection outputs (Note 1)
• High, High high, Low, and/or Low low alarm
outputs (Note 2)
“Field re-verification” Mag-Prover – Toshiba’s
Zero span calibration tool allows unit to be
re-calibrated and verified using an internal
software program. (For more information contact
Toshiba International Corp.)
Conditions when power fails:
• Empty pipe alarm output
• Digital Output Active Status (DO1 and DO2)
(Note 2)
Parameter setting values are stored in non-volatile
memory and the values will be restored when the
power returns to normal condition. The outputs
and display will remain as follows when power
fails.
• Preset count output
• Current output: 0mAdc
3
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TIC-LF494B
• Digital output: OFF
• LCD display: No display
• PROFIBUS: No communication
Power supply:
One of the following can be selected:
• 100 to 240Vac, 50/60Hz (std.)
(allowable voltage 80 to 264Vac)
• 24Vdc (allowable voltage 18 to 36Vdc)
• 110Vdc (allowable voltage 90 to 130Vdc)
Surge protection:
Arresters are installed in the power supply, and a
current signal output circuit to help protect the
meter from lightning and improve personnel
safety.
Case: Aluminum alloy (equal to IP 67)
Coating: Acrylic resin-baked coating, pearl-gray
colored
Cable connection ports:
Cable glands —
LF610 and LF612 without cFMus Approval:
Provided as standard, OD of cableφ
11~13mm
Material Nylon 66
G (PF) 1/2 male screws.
LF610F and LF612F with cFMus Approval:
Not provided, 1/2–14NPT male screws are
required.
Applicable diameter —
0.433 to 0.512 inch (11 to 13mm)
Note: When PROFIBUS option is specified, cable gland size
is φ6～8mm for signal cable, φ11～13mm for power
cable
Vibration resistance:
No resonance to the following levels of
vibration:
• 10 to 150Hz with acceleration of 9.8m/s2
• Vibration of 30Hz with 29.4 m/s2 in 4h in each
direction will not cause any defect to unit.
Note: Avoid using the flowmeter in an environment with
constant vibration.
Dimensions and Weights:
See Figure 8 (for Separate type)
MTBF:
Converter: 220,000 hours (25 years) at 77 °F
(25 °C) based on strict military
specification MIL-HDBK-217F
Detector: 350,000 hours (40 years) at 77 °F
(25 °C) based on strict military
specification MIL-HDBK-217F
4
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TIC-LF494B
Installation
ꢀDimensions (Combined type)
Clamp connection
Unit : inch(mm)
Welding connection
Unit : inch(mm)
8.86(225)
1.42(36)
5.63(143)
5.16(131)
8.86(225)
1.42(36)
5.63(143)
L1
Note1: L1 dimension is for the standard (Normal length)
Note1: Clamp (Joint) size is different from meter size of
type ferrule.
LF490 and LF494. See the following table.
Note2: See Figure 7 for Ferrule dimensions.
Note2: Cable glands are not provided for cFMus
approved type.
Note3: Cable glands are not provided for cFMus approved
type.
For English unit
For English unit
Meter size Joint size
L1
D1
D2
Weight
(lbs)
Meter size Joint size
L1
L2
D1
Weight
(lbs)
(inch)
(ISO2852) (inch) (inch) (inch)
(inch)
(ISO2852) (inch) (inch) (inch)
1 (1S)
1-1/2 (1-1/2S)
2 (2S)
6.16
6.75
7.34
7.85
8.64
1.00
1.50
2.00
3.00
4.00
3.11
3.66
4.17
5.28
6.81
2 S
2 1/2 S
3 S
Approx. 13.2
Approx. 17.6
Approx. 19.8
Approx. 26.5
Approx. 35.3
1 (1S)
1-1/2 (1-1/2S)
2 (2S)
2 S
2 1/2 S
3 S
4.33
4.92 11.25 3.54 Approx. 13.2
5.51 9.64 4.09 Approx. 15.4
5.51 10.00 5.12 Approx. 19.8
6.30 10.19 6.38 Approx. 26.5
9.17
2.87 Approx. 11
3 (3S)
4 S
3 (3S)
4 S
4 (4S)
5 1/2 S
4 (4S)
5 1/2 S
For SI unit
For SI unit
Meter size
mm (inch)
Meter size Joint size
L1
L2
D1
Weight
(kg)
Approx. 5
Approx. 6
Joint size
(ISO2852) (mm) (mm) (mm)
L1
D1
D2
Weight
(kg)
mm (inch) (ISO2852) (mm) (mm) (mm)
25 (1S)
40 (1 1/2S)
50 (2S)
80 (3S)
100 (4S)
2 S
2 1/2 S
3 S
4 S
5 1/2 S
110
125
140
140
160
233
286
245
254
259
73
90
25 (1S)
40(1 1/2S)
50 (2S)
2 S
2 1/2 S
3 S
4 S
5 1/2 S
156.4 25.4
171.4 38.1
186.4 50.8
199.4 76.3
219.4 101.6
79
93
106
Approx. 6
Approx. 8
Approx. 9
104 Approx. 7
130 Approx. 9
162 Approx. 12
80 (3S)
134 Approx. 12
173 Approx. 16
100 (4S)
Note: Tri-clamp® is available to use the same joint size
instead of ISO2852 clamp except meter size 100
mm (4").
Note: Tri-clamp® is available to use the same joint size
instead of ISO2852 clamp except meter size 100
mm (4").
Note: 1 inch = 25.4 mm
Note: 1 inch = 25.4 mm
Figure 3. LF490/LF610 and LF494/LF610F
Flowmeters
Figure 4. LF490/LF610 and LF494/LF610F
Flowmeters
(Ferrules and Clamps not attached)
(Ferrules and Clamps attached)
5
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TIC-LF494B
Dimensions (Separate type)
Clamp connection
Welding connection
Unit : inch(mm)
Unit : inch(mm)
4.96(126)
3.58(91)
3.46(88)
3.46(88)
1.57(40)
4.96(126)
3.58(91)
1.57(40)
1.38(36)
1.38(36)
R(PT)1/2
Male screw
R(PT)1/2
Male screw
2
D
φ
(L2)
ΦD１
φD1
L1
L1
Note1: Clamp (Joint) size is different from meter size
of LF490. See the following table.
Note2: Cable glands are not provided for cFMus
approved type.
Note1: L1 dimension is for the standard (Normal
length) type ferrule.
Note2: See Figure 7 for Ferrule dimensions.
Note3:Cable glands are not provided for cFMus
approved type.
For English unit
For English unit
Meter size Joint size
L1
L2
D1
Weight
(lbs)
Meter size Joint size
L1
D1
D2
Weight
(lbs)
(inch)
(ISO2852) (inch) (inch) (inch)
(inch)
(ISO2852) (inch) (inch) (inch)
1 (1S)
1-1/2 (1-1/2S)
2 (2S)
2 S
2 1/2 S
3 S
4.33
4.92
5.51
5.51
7.05
7.72
8.27
9.29
2.87 approx. 8.8
3.54 approx. 11.0
4.09 approx. 13.2
5.12 approx. 17.6
1 (1S)
1-1/2 (1-1/2S)
2 (2S)
6.16
6.75
7.34
7.85
8.64
1.00
1.50
2.00
3.00
4.00
3.11
3.66
4.17
5.28
6.81
2 S
2 1/2 S
3 S
approx. 11.0
approx. 15.4
approx. 17.6
approx. 24.3
approx. 33.1
3 (3S)
4 S
3 (3S)
4 S
4 (4S)
5 1/2 S
6.30 10.55 6.38 approx. 24.3
4 (4S)
5 1/2 S
For SI unit
For SI unit
Meter size
mm (inch)
Meter size Joint size
L1
L2
D1
Weight
(kg)
approx. 4
approx. 5
approx. 6
approx. 8
Joint size
(ISO2852) (mm) (mm) (mm)
L1
D1
D2
Weight
(kg)
(mm)
25 (1S)
40 (1 1/2S)
50 (2S)
80 (3S)
(ISO2852) (mm) (mm) (mm)
2 S
2 1/2 S
3 S
4 S
5 1/2 S
110
125
140
140
160
179
196
210
236
268
73
90
104
130
25 (1S)
40(1 1/2S)
50 (2S)
80 (3S)
100 (4S)
2 S
2 1/2 S
3 S
4 S
5 1/2 S
156.4 25.4
171.4 38.1
186.4 50.8
199.4 76.3
219.4 101.6
79
93
106
approx. 5
approx. 7
approx. 8
100 (4S)
162 approx. 11
134 approx. 11.
173 approx. 15
Note: Tri-clamp® is available to use the same joint size
instead of ISO2852 clamp except meter size 4"
(100 mm).
Note: Tri-clamp® is available to use the same joint size
instead of ISO2852 clamp except meter size 4"
(100 mm).
Note: 1 inch = 25.4 mm
Note: 1 inch = 25.4 mm
Figure 5. LF490/LF612 and LF494/LF612F
Flowmeters
Figure 6. LF490/LF612 and LF494/LF612F
Flowmeters
(Ferrules and Clamps not attached)
(Ferrules and Clamps attached)
6
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TIC-LF494B
LF490,
LF494
Detectors
Pipe
(welding)
Normal type For English unit
Meter size Joint size
L1
L2
D1
D2
D3
Weight
(inch) (inch) (inch) (inch) (inch)
(lbs)
(inch)
(ISO2852)
1 (1S)
1-1/2
(1-1/2S)
0.85 0.11 2.52 0.91 1.00
2 S
Approx.0.4
0.85 0.11 3.05 1.41 1.50
2 1/2 S
Approx. 0.4
2 (2S)
3 (3S)
4 (4S)
0.85 0.11 3.58 1.88 2.00
1.10 0.11 4.69 2.85 3.00
1.10 0.22 6.10 3.84 4.00
3 S
4 S
5 1/2S
Approx. 0.7
Approx. 1.1
Approx. 2.2
Normal type For SI unit
Meter size Joint size L1 L2 D1 D2 D3
mm (inch) (ISO2852) (mm) (mm) (mm) (mm) (mm)
Weight
(kg)
25 (1S)
40
(1 1/2S)
50 (2S)
80 (3S)
2 S
21.5 2.85 64.0 23.0 25.4 Approx. 0.2
2 1/2 S 21.5 2.85 77.5 35.7 38.1 Approx. 0.2
3 S
4 S
21.5 2.85 91.0 47.8 50.8 Approx. 0.3
28.0 2.85 119.0 72.3 76.3 Approx. 0.5
100 (4S) 5 1/2S 28.0 5.6 155.0 97.6 101.6 Approx. 1.0
Long type For English unit
Meter size Joint size
L1
L2
D1
D2
D3
Weight
(lbs)
(inch) (inch) (inch) (inch) (inch)
(inch)
(ISO2852)
1 (1S)
1-1/2
(1-1/2S)
3.00 0.11 2.52 0.91 1.00
2 S
Approx. 0.4
3.00 0.11 3.05 1.41 1.50
2 1/2 S
Approx. 0.7
2 (2S)
3 (3S)
4 (4S)
3.00 0.11 3.58 1.88 2.00
4.00 0.11 4.69 2.85 3.00
4.00 0.22 6.10 3.84 4.00
3 S
4 S
5 1/2S
Approx. 0.9
Approx. 1.8
Approx. 3.1
Long type For SI unit
Meter size Joint size L1 L2 D1 D2 D3
mm (inch) (ISO2852) (mm) (mm) (mm) (mm) (mm)
Weight
(kg)
25 (1S)
40
(1 1/2S)
50 (2S)
80 (3S)
2 S
76.2 2.85 64.0 23.0 25.4 Approx. 0.2
2 1/2 S 76.2 2.85 77.5 35.7 38.1 Approx. 0.3
3 S
4 S
76.2 2.85 91.0 47.8 50.8 Approx. 0.4
101.6 2.85 119.0 72.3 76.3 Approx. 0.8
100 (4S) 5 1/2S 101.6 5.6 155.0 97.6 101.6 Approx. 1.4
Note1: This special Ferrule, which fits on TOSHIBA LF490
and LF494, can be fastened to ISO2852 clamp.
Tri-clamp® is available to use the same joint size
instead of ISO2852 clamp except meter size 4"
(100mm).
Note2: "D1" is Toshiba's original dimension.
Note3: 1 inch = 25.4 mm
Figure 7. Ferrule dimensions
7
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TIC-LF494B
4 –4－φφ01.43(φ11)
Unit : inch(mm)
3.23(82)
5.94(151)
0.98(25)
0.51(13)
Attachment
2.91(74)
LCD display
Excitation cable ground
I/Ocable ground
Gr ound terminal
(M4)
Power supply cable ground
Signa l cable ground
Blind screw
IR Switch
Cable ground
(単位：mm)
Figure 8. Separate type converter LF612 and LF612F
ꢀExternal Connections
ꢁCombined type LF490/LF610 and LF494/LF610F flowmeters
Instrument Panel : Ordered separately
I/O Cable (CVV-S)
Ground terminal
Current output
(4~20mAdc) or
PROFIBUS
Intermediate
voltage (IV) wire,
5.5mm2 or more.
Digital Output 1
Signal common
for DI and DO
To be grounded
with 100Ω or less
ground resistance.
Digital Output 2
Digital Input
(20 to 30Vdc)
Grounded with
100Ω or less
ground resistance
Grounded with
100Ω or less
ground resistance
Power supply
Power Cable (CVV)
1
*
Power Switch
(External double-pole power switch)
*1 Locate an external double-pole power switch on the power line near the flowmeter within easy reach of operation.
Use the appropriate switch rating as shown below:
Switch rating: 250Vac, 6A or more
In rush current: 15A or more
Figure 9. Combined type LF490/LF610 and LF494/LF610F
flowmeters Wiring Diagram
8
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ꢁSeparate type LF490/LF612 and LF494/LF612F flowmeters
Terminal board
IV wire
5.5 mm2 or more
Thick walled steel conduit
Grounded with 100Ω or less
ground resistance
Power switch
(External double-pole power switch )
[Instrument panel : ordered separately]
Grounded with 100Ω or
Signal cable
(2-wire shielded hard-rubber
sheathed cable)
less ground resistance
Power supply
Current output (4~20mAdc)
or PROFIBUS
Digital output 1
Signal common for DI and DO
Connected detector
Digital output 2
Excitation cable
Digital input
(20~30Vdc)
(3-wire shielded hard-rubber cable)
Power cable
(CVV)
Digital input cable
(CVV-S)
Grounded with 100Ω or
less ground resistance
Figure 10. Separate type LF490/LF612 and LF494/LF612F flowmeters wiring Diagram
Table 1. LF610, LF610F, LF612 and LF612F Converters Signal Table
Symbol
L1 (＋)
L2 (－)
GND
FG
Description
Cable
Power supply
Power cable (CVV)
Ground (for arrester)
Frame ground
DI
DO1
Digital Input (20～30Vdc)
Digital Output 1
DO2
COM
Digital Output 2
Signal Common for DI, DO1, DO2
I/O cable (CVV-S)
＋
－
Current Output (4～20mAdc)
Shielded cable for
PROFIBUS-PA
or PROFIBUS
X
Y
E
A
B
G
Excitation cable
(for LF612, LF612F only)
Excitation Output
Signal Input
Signal cable
(for LF612, LF612F only)
9
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TIC-LF494B
ꢀWiring Precautions
(7) Only one PROFIBUS-PA cable goes through a
cable gland of the Electromagnetic Flowmeter.
Please use the junction box at system
configuration.
(1) Explosion proof type flowmeters are not
provided cable glands.
Refer to the part Cable connection port at
detector and converter.
(2) Connect the grounding wire (IV wire 5.5mm² or
more) to a good earth ground (100Ω or less
ground resistance). Make the wire as short as
possible. Do not use a common ground shared
with other equipment where earth current may
flow. An independent earth ground is
recommended.
(3) The allowable cable lengths between the
detector and converter for the separate type
flowmeter depend on the electrical conductivity
of the object fluid. See Figure 11.
300
200
100
50
30
10
5
3
(4) DO1, DO2 (opt.), and DI (opt.) use the same
common terminal (COM). This COM can not
connect to other equipments which have their
own ground terminal. (Power supply for
connecting to DI or DO, etc…) Need to wire
separately.
3
5
10 20 30 50100200
Conductivity (µS/cm)
Figure 11. Electrical Conductivity and
Cable Length
ꢀMeter Size
ꢀ Wiring Precautions (PROFIBUS)
To select the meter size:
(1) For wiring path, avoid places near electrical
equipment that may cause electromagnetic
induction or electrostatic induction interference
(such as a motor, transformer and wireless
transmitter).
(2) Use a PROFIBUS-PA cable for signal cable. In
addition, make sure to use a shielded cable to
improve noise resistance. Furthermore,
installation of signal cable in metal conduit is
recommended.
See Table 2 to 3 and find meter sizes within the
velocity of 0.3 to 32.8 ft/s (0.1 to 10m/s ) for a
specified full-scale (measuring range high limit)
flow. Select one that has its full-scale velocity
between 3.0 and 10 ft/s (1 and 3m/s).
Note: Make sure the full-scale flow rate used for the final
planning stage stays within 32.8 ft/s (10m/s) in
terms of flow velocity.
(3) General PROFIBUS-PA cables are designed for
indoor use where cables are not exposed to
humidity, rain, etc. When you install cables,
make sure to check the operating conditions such
as the operating temperature range of the cable
by contacting its manufacturer.
(4) When you carry out cable end treatment of
PROFIBUS-PA cable, use a dedicated cable
stripper etc. so that the core wire of the cable will
not be nicked or damaged. In addition, for cables,
be careful of allowable maximum bend diameter
etc. (Basically, do not install cables in a way
cables are twisted or bent.).
(5) Consider installing a PROFIBUS-PA arrester in
the communication path of PROFBUS-PA so
that the electromagnetic flowmeter will not be
affected by lightning etc.
(6) The electromagnetic flowmeter is not equipped
with terminating resistors.Use the terminating
resistor unit for PROFIBUS-PA or junction box,
if necessary.
Table 2. Flow Rate and Flow Velocity (English unit)
Unit: gal/min
Flow rate
3ft/s
Size
(inch)
1
1 ½
2
0.3ft/s
0.7781
1.992
3.112
7.967
12.45
0.98ft/s
2.334
5.975
9.337
23.90
37.35
10ft/s
23.72
60.71
94.86
242.8
379.4
32.8ft/s
77.81
199.2
311.2
796.7
1,245
7.115
18.21
28.46
72.85
113.8
3
4
Table 3. Flow Rate and Flow Velocity (SI unit)
Unit: m3/h
Flow rate
Size
0.１ m/s 0.3 m/s 1.0 m/s
3 m/s 10 m/s
(mm)
0.1767
0.4523
0.7067
1.809
5.301
13.57
21.20
54.28
84.82
25
40
50
80
0.5301
1.357
2.120
5.428
8.482
1.767
4.523
7.067
18.09
28.27
17.67
45.23
70.67
180.9
282.7
2.827
100
10
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ꢀAbout establishment environment
ꢀCalibration Range
If the calibration range is not specified, the standard
range as shown below will be used. If the range is
specified, we will use the specified range for
calibration.
Do not store or install the flowmeter :
• Where there is direct sunlight.
• Where excessive vibration or mechanical shock
occurs.
Table 4. Standard Flow Range
• Where high temperature or high humidity
conditions exist.
Standard flow range
Meter size
Flow rate Flow rate Flow velocity
inch(mm)
(gal/min)
75
(m³/h)
6
(m/s)
3.395
3.316
3.537
3.316
3.537
• Where corrosive atmospheres exist.
1 (25)
1 1/2 (40)
2 (50)
3 (80)
4 (100)
175
300
650
1,000
15
25
60
100
• Places 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.
Note: The unit of "gal/min" is not exchanged
(converted) by "m3/h".
In areas like the following, there may be the case that
infrared switches do not function correctly. (If these
are unavoidable, use an appropriate cover.)
(1) Where unit (operation panel) is exposed to direct
sunlight, reflection of light onto window pane and
diffused light reflection.
(2) Where smoke and steam may occur.
(3) Where exposed to direct snow, ice or mud.
Ordering Information
1. When ordering the LF490 series flowmeters, refer
to Tables 5 and 6 (Type Specification Codes).
An entry must be made for each of the columns in
each of these tables.
2. Fluid characteristics:
(1) Type of fluid to be measured and its characteristics
(2) Fluid temperature
(3) Fluid pressure
(4) Electrical conductivity of the fluid
3. Measuring range
4. I/O function setting
5. Ordering scope:
Flow calibration data: (required or not)
6. Other items
Specifications other than standard items
Consult a Toshiba representative before ordering
when choosing materials of the wetted parts such as
lining, electrodes, and grounding rings.
11
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Table 5. Specification Code (Sanitary type detector LF490 Series)
Model
Specification Code
Type
Description
1
2
3
4
4
4
9
9
5
0
4
6
7
8
9 10 11 12 13 14
Normal
Ex. type
L F
L F
Normal specification type
Hazardous location certification type (Note 1)
√
√
Meter size
1"(25mm)
(Clamp size)
(2S)
E
F
√
√
√
√
√
√
√
√
√
√
1 1/2"(40mm)
2"(50mm)
3"(80mm)
4"(100mm)
Mounting Style
(2 1/2S)
(3S)
(4S)
G
H
J
(5 1/2S)
L
Detector/Converter combined type (LF490/LF610)
Detector/Converter separate type (LF490/LF612)
cFMus class I, Division 2 (Note 1)
Detector/Converter combined type (LF494/LF610F)
Detector/Converter separate type (LF494/LF612F)
Connection method
√
√
M
A
B
√
√
A
Z
Sanitary clamp type (ISO 2852) (Note 2)
Other
ꢂ ꢂ
ꢃ
–
Electrode Material (Note 5)
B
Z
316L stainless steel
Other
ꢂ ꢂ
ꢃ
–
Lining and Sealing materials (gaskets) (Note 5)
Teflon PFA and Silicone rubber
Piping connection parts (ferrules, clamps) (Note 2, 3, 5)
No ferrule and no clamp
S
ꢂ ꢂ
ꢂ ꢂ
A
B
C
D
E
Z
Normal type of Ferrules (304 stainless steel) with no clamp ꢃ
ꢃ
ꢃ
ꢃ
ꢃ
–
Normal type of Ferrules (304 stainless steel) with clamp
Long type of Ferrules (304 stainless steel) with no clamp
Long type of Ferrules (304 stainless steel) with clamp
Other
ꢃ
ꢃ
ꢃ
ꢃ
Flow and calibration velocity range
1.0 to 32.8 ft/s (standard range calibration)
1.0 to 32.8 ft/s (specified range calibration)
0.3 to 32.8 ft/s (specified range calibration)
Excitation and Signal Cables
A
B
C
ꢂ ꢂ
ꢃ
ꢃ
ꢃ
ꢃ
A
B
C
not provided
30 m cable, provided (Note 4)
other lengths, provided (Note 4)
ꢂ ꢂ
ꢃ
ꢃ
ꢃ
ꢃ
Coating (Note 6)
no coating
3A approved type
Other
A
F
ꢂ ꢂ
ꢃ
–
Z
ꢃ
–
Size code explanation:√ : Object ꢂ: Standard ꢃ: Option
–: Not available
Note1: Cable glands are not provided. Refer to the part of “Cable connection port” at detector and converter.
Note2: Tri-clamp® is available to use the same joint size instead of ISO2852 clamp except meter size 100mm (4").
Note3: Toshiba’s original ferrule is required to use for LF490 series detectors to keep just fitting between the joint in case
of choosing clamp type.
Note4: Applies to the separate type flowmeter only. Specifying the code C, indicate the length of cable from 1 to 300m in
1 meter increments.
Note5: Consult Toshiba before ordering when choose materials at the wetting parts.
Note6: LF494 have only 3A approved type.
12
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Table 6. Specification Code for converters
Model
Specification Code
LF600 LF602
Contents
type
type
1
L
2
3
6
4
5
6
7
8
9 10 11 12 13 14
F
1
Electromagnetic flowmeter converter
0
2
Combined (Integral) type
Separate (Remote) type
ꢂ
–
–
ꢂ
Purpose
A
F
Standard
cFMus class I, Division 2 approved
ꢂ
ꢃ
ꢂ
ꢃ
Shape
Integral type with case
ꢂ
A
B
–
ꢂ
–
Separate type with case
Converter mounting fitting
A
C
E
None
ꢂ
–
–
ꢃ
ꢂ
ꢃ
Panel, Accessory for wall mounting (BNP material: SUS304)
Accessory for pipe installation (BNP material: SUS304)
Digital input/output
1
2
Digital output points 1 (DO1)
ꢂ
ꢃ
ꢂ
ꢃ
Digital output points 2 (DO1+DO2) +Digital input point 1 (DI)
Current output and Communication function
Current output + HART communication
PROFIBUS communication (Current output is not usable)
Power supply
1
2
ꢂ
ꢃ
ꢂ
ꢃ
1
2
3
100Vac-240Vac, 50/60Hz
24Vdc
110Vdc
ꢂ
ꢃ
ꢃ
ꢂ
ꢃ
ꢃ
Instruction manual
E
English
ꢂ
ꢂ
Code explanation: ꢂ: Standard ꢃ: Option
–: Not available
Table 7. Type Specification Code for Maintenance Parts
Specification code for maintenance parts
Meter size Joint size
inch(mm) (ISO2852)
Ferrule
Gasket
ISO2852 Clamp
Normal type
3A8A7164P001
3A8A7164P002
3A8A7164P003
3A8A7164P004
3A8A7164P005
Long type
1S(25)
1 1/2S(40)
2S(50)
2S
2 1/2S
3S
3L8A0355P001
3L8A0355P002
3L8A0355P003
3L8A0355P004
3L8A0355P005
3A8A7164P006
3A8A7164P007
3A8A7164P008
3A8A7164P009
3A8A7164P010
4A8A2957P002
4A8A2957P003
4A8A2957P004
4A8A2957P006
4A8A2957P008
3S(80)
4S
4S(100)
5 1/2S
Note1: A pair of parts are packed in each specification code.
Note2: Tri-clamp® is available to use the same joint size instead of ISO2852 clamp except meter size 4"(100mm).
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TIC-LF494B
ISO9001 and ISO14001 are certified.
Specifications are subject to change without notice.
Printed in Japan 2008-5 (TDOC)
© TOSHIBA Corporation 2008
All Rights Reserved.
Misuse of this product can result in damages to property or human injury.
Read related manuals carefully before using this product.
TIC-LF494B
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