Field Intelligent Device – Mount Anywhere Series - Flanged
Electromagnetic Flowmeter
Introduction
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 4–20 mAdc current signal or communication
signal. The meter features a Mount-Anywhere
magnetic field distribution technology, the meter is
highly immune to upstream flow disturbances.
Combined with a multi-functional converter LF620
(combined type) or LF622 (separate type) equipped
with its patented Noise-Sentry original noisesuppression circuit and advanced algorithms. The
LF654 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.
* HART protocol (Highway Addressable Remote Transducer) is
a communication protocol for industrial sensors recommended
by the HCF (HART Communication Foundation).
** DevComm2000 Smart Device Communicator available
through TIC for performing HART device configurations on
PC or laptop .
* PROFIBUS is the communications protocol for factory and
process automation that the PROFIBUS Organization
recommends. Instead of analog control with a conventional
analog signal (4-20 mA), it is fieldbus which digitizes all
signals. Flowmeters support PROFIBUS-PA.
* Modbus is the communication protocol that Modicon Inc.
developed. Physical layer is RS485.
LF654 /LF620
LF654 /LF622
1/2" to 18" (15 to 450 mm)
LF654/LF620F LF654 LF622F
Figure2. LF654 Mount-Anywhere Series
Flowmeters
Certification
No. Z01207
For PU and
HR lined flowmeter
Specifications
Overall Specifications
Measurement range in terms of flow velocity:
0 –1.0 ft/s to 0 – 39.4ft/s (0 – 0.3 m/s to 0 –12 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.
Accuracy:
< 1/2" to 18" ( 15mm to 450mm) >
±0.2 % of Rate*
* This pulse output error result is established under standard
operating conditions at Toshiba admitted flow calibration
facility. (NIST Traceable)
* 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.
* Current output: plus ± 8µA (0.05% of span.)
* Refer to individual calibration data for each individual meter's
measurement error.
Combined type Se par a te t yp e
Figure1. Configuration
TIC-LF654L
TIC-LF654L
Fluid conductivity:
3µS/cm minimum
Fluid temperature:
(-
-4 to 248 °F
20 to +120 °C):
PFA lined flowmeter
-4 to 140 °F
(-
20 to +60 °C):
Polyurethane lined flowmeter
(-
23 to 176 °F
5to +80 °C):
Hard Rubber lined flowmeter
Ambient temperature:
(-
-40 to 140 °F
40 to +60 °C):
PFA lined flowmeter
-4 to 140 °F (-20 to +60 °C):
PU lined and HR lined flowmeters
Structure:
Standard — IP 67 and NEMA 4X Watertight
Option —IP68 and NEMA 6PSubmersible type
allows for accidental submergence up to 15m for
48 hours. This option is only available whenPU
or HR liners are selected.
Power consumption:
Standard:10W(14VA)
at AC100V and Excitation current:0.2A
MAX:15W (22VA)
MAX:17W(24VA) with PROFIBUS
Approved hazardous location certifications:
Model: LF654/LF620F and LF654/LF622F
cFMus Nonincendive for use in
hazardous (classified) locations:
Class I, II, III, Division 2, Groups A-G
Detector and converter combination:
LF650/LF620: Combined type for standard
specification.
LF650/LF622: Separate type for standard
specification.
LF654/LF620F: Combined type with Ex approval of
Class I, II, III, Division 2 (cFMus).
LF654/LF622F: Separate type with Ex approval of
Class I, II, III, Division 2 (cFMus).
Mount-Anywhere Technology:
With TOSHIBA’s unique magnetic field
distribution technology the meter is highly immune
to upstream flow disturbances.
A minimum of 1D (one diameter) length of
upstream straight pipe from the flange is required to
maintain the specification performance.
Note: The test results were obtained and demonstrated at
TOSHIBA's flow calibration facility, Fuchu Japan.
Drinking water approvals:
PU and HR liner: NSF certified
Model LF654 Detector
Mounting style: Flange connection type
Fluid pressure:
-
15 psi or -1.0 bar (-0.1 MPa) to the nominal
pressure of the connection flange.
Note: Before shipping from the manufacturer, each detector
unit is tested by the following test condition.
Pressure… twice of the pressure index number
(ex. 300 psi in case of ASME B 16.5 class 150 flange)
Time… 15 minutes
Connection flange standards:
ASME B16.5 class 150, ASME B16.5 class 300
EN1092-1 PN10, EN1092-1 PN16
JIS B 2220 10K, JIS B 2220 20K
Principal materials:
Case — carbon steel
Flange material — carbon steel
Linings —
1/2” to 18” (15 to 450mm): PFA
1/2” to 18” (15 to 450mm): PU
4” to 18” (100 to 450mm): HR
Note: PFA liners are mechanically retained for full vacuum
service (65 to 450 mm).
Electrodes —
Type-Super smooth, polished with self cleaning
finish, and non stick shape
316L stainless steel (std.) in case of PU and HR
lining
Hastelloy C equivalent (std.)
… in case of PFA lining
Note: Electrodes are mechanically buffed and
electro-chemically polished.
Grounding rings — 316 stainless steel (std.)
Note: See Table 4 for optional materials and other
related information.
Measuring tube material — 304 stainless steel
Terminal box material — ADC12(Aluminum
Note 1: Two outputs (DO1 and DO2) are needed for 4-range
switching and forward/reverse 2-range switching.
Note 2: Normal Open (default set) or Normal Close is selected
for alarm outputs when programming.
When power failure occurs, unit will be fault to Normal
Open.
Communications output:
• HART (std.) — Digital signal is superimposed on
4–20mAdc current signal as follows:
Conforms to HART protocol
Load resistance: 240 to 750
Load capacitance: 0.25µF maximum
Load inductance: 4mH maximum
• PROFIBUS (opt.)
Protocol: PROFIBUS-PA
Baud rate: 31.25kbps
Bus voltage: 9-30VDC
Consumption electric current of bus: less than 16mA
Manufacture Ident-No.: 093B
Standard Ident-No.: 9740
HEX
HEX
Slave address: 0-126 (Default address is 126)
Profile: Profile Ver.3.01 for Process Control
Devices
Function blocks: AI(Flow)×1 , Totalizer×1
• MODBUS (opt.)
Physical layer : RS485
Protocol : Modbus
Mode : RTU
Baudrate : 4800, 9600, 19200bps
Data length : 8bit
Parity bit : None, Odd, Even
Stop bit : 1bit, 2bit
Error check : CRC-16
Max. station number : 32(with Master device)
Max. cable length : 1.2km (Note)
Note: This length is specification of 3 line
connection.
3
TIC-LF654L
LCD display:
Full dot-matrix 128×128 dot LCD display
(back–light provided)
A parameter change will rotate the display.
Parameter settings — Parameters can be set as
follows:
• IR Switches: Three key switches are provided
to set configuration parameters.
• Digital communication: HART, PROFIBUS
or Modbus is needed to set parameters.
• Zero adjustment: Zero point adjustment can
be started by pressing the switch in the
converter.
• Damping: 0.1 to 60 seconds (selectable in one
second increments)
“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:
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.
• Current output: 0mAdc
• Digital output: OFF
• LCD display: No display
• HART: No communication
• PROFIBUS: No communication
• Modbus: No communication
Power supply:
One of the following can be selected:
• 100 to 240Vac, 50/60Hz
(allowable voltage 80 to 264Vac)
110Vdc
(allowable voltage 90 to 130Vdc)
• 24Vdc (allowable voltage 18 to 36Vdc)
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 port:
Cable glands —
LF620 and LF622 without cFMus Approval:
Provided as standard, outer diameter of cableφ
11~13mm
Material Nylon 66
G (PF) 1/2 male threads.
LF620F and LF622F with cFMus Approval:
Not provided, 1/2–14NPT male threads 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:
2
• 10 to 150Hz with acceleration of 9.8m/s
• Vibration of 30Hz with 29.4 m/s
2
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 Figure7 (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
Installation
Dimensions
TIC-LF654L
Unit: inch (mm)
Note1: Eye bolts are provided at the top for flowmeters sized 8" (200mm) or above, and further, a roll-prevention base is provided for
flowmeters sized 10" (250mm) or larger.
Note2: Cable glands are not provided for LF654 of cFMus approved type. Refer to the cable connection port at converter.
combined type flowmeters
Meter Sizes 1/2" (15) to 18"
(450mm) for ISO lay length
6
TIC-LF654L
Note1: Eye bolts are provided at the top for flowmeters sized 8”(200mm) or above, and further, a
roll-prevention base is provided for flowmeters 10”(250mm) or larger.
Note2: Cable glands are not provided for LF654 of cFMus approved type. Refer to the cable connection
Meter sizes 1/2" (15) to 18"
(450mm) for ISO lay length
Weight
(kg)
8
0.59(15
y
Digital i
TIC-LF654L
5.35(136)
)
3.82(97
)
4.84(123)
2.91(74
)
)
)
8
0
1
1
1
2
(
(
0
7
4
2
.
.
7
8
)
)
0
6
7
7
1
1
(
(
9
3
6
9
.
.
6
6
)63(24.1
Note: Cable glands are not provided for LF622F cFMus approved type.
Refer to the part Cable connection port at detector.
Note: 1 inch = 25.4 mm
Figure 7. Separate type converter LF622 and LF622F
External Connections
● Combined type LF650/LF620 flowmeter and LF654/LF620F flowmeters
Unit: inch (mm)
Weight: Approx. 7 lb (3.5 kg)
Instrument panel : Ordered separatel
Grounding with 100Ω or less
Power switch
(External double-pole pow er switch)
Power supply
Current output ( 4〜20mAdc)
or PROFIBUS
ground resistance
or Modbus
(20〜30Vdc)
Digital output 2
np ut
NOTE:
In th e case of th e int egral ty pe, the signal line
( A, B, G ) and th e excitat ion lin e ( E, X, Y ) are
the connector joints.
Ⅳ wire 5.5mm2 or more
Grounding with 100Ω or less
ground resistance
Signal common for DI and DO
Digital output 1
Grounding with 100Ω or less
ground resistance
I/O cable
Power cable
*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 8. Combined type LF650/LF620 and LF654/LF620F flowmeters Wiring Diagram
9
G
ith 100
Ω
Inst
o
P
Digital i
Si
DO
Digital
2
d
● Separate type LF650/LF622 flowmeter and LF654/LF622F flowmeter
rument panel : Ordered separately
rounding w
Power switch
(Ext ernal double-pole power switch)
or Modbus
ground resistance
Current output (4 〜20mAdc)
r PROFIBUS
gnal common for DI and
G rounding w it h 100Ωor le s s
ground resistan ce
Digital output 1
ower supply
(20〜30Vdc)
nput
output
or less
I/O cable
Power cable
Connected detector
TIC-LF654L
Ⅳ wire 5.5mm2 or more
G rounding with 100Ω or less
ground resistance
Thick walled steel conduit
Signal cable
(2 -w ire sh ielded hard-rubber sh eat hed cabl e)
Exci ta ti o n ca b l e
(3 -w ire sh ielded hard-rubber c ab le)
Figure 9. Separate type LF650/LF622 and LF654/LF622F flowmeters wiring Diagram
Table 1. LF620, LF620F, LF622 and LF622F Converters Signal Table
Symbol DescriptionCable
L1 (+)
L2 (−)
GND Ground (for arrester)
FG Frame groun
DI Digital Input (20〜30Vdc)
DO1 Digital Output 1
DO2 Digital Output 2
COM Signal Common for DI, DO1, DO2
+
−
X
Y Excitation Output
E
A
B Signal Input
G
T+ Modbus(+)
T- Modbus(-)
TG Modbus(GND)
Note: Symbol of the terminal is changed as follows for Modbus.
DO2 → T+, DI → T-, COM → TG
Power supply Power cable (CVV)
I/O cable (CVV-S)
Current Output (4〜20mAdc)
or PROFIBUS
Shielded cable for
Excitation cable
(for LF622,LF622F only)
(for LF622,LF622F only)
Twisted-pair polyethylene
insulated vinyl sheath cable
(JKEV,AWG24(0.2mm
PROFIBUS-PA
Signal cable
2
))
10
Wiring Precautions
(1) Explosion proof type flowmeters are not provided
with 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 (100 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 10.
TIC-LF654L
(6) The electromagnetic flowmeter is not equipped with
terminating resistors. Use the terminating resistor
unit for PROFIBUS-PA or junction box, if
necessary.
(7) Only one PROFIBUS-PA cable goes through a
cable gland of the Electromagnetic Flowmeter.
Please use the junction box at system configuration
(8) Install a terminator to flowmeter that connected to
end of Modbus network.
300
200
100
50
30
20
10
.
(4) DO1, DO2 and DI use the same common terminal
(COM). This COM can not be connected to other
equipment which have their own ground terminal.
(Power supply for connecting to DI or DO, etc…)
Need to wire separately.
Wiring Precautions (PROFIBUS or
Modbus)
(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 or a RS485 twisted-pair
cable for signal cable.
In addition, make sure to use a shielded cable to
improve noise resistance. Installation of signal cable
in metal conduit is recommended.
(3) General 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, use a
dedicated cable stripper to avoid the core wire of the
cable being nicked or damaged. In addition, for
cables, be careful of allowable maximum bend
diameter. (Do not allow excessive twisting or
bending of cables).
(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.
5
3
Allowable cable length (m)
3510 20 30 50 100 200
Conductivity (S/cm)
Figure 10. Electrical Conductivity and Cable
Meter Size
Length
To select the meter size:
See Table 2 and 3 to findmetersizeswithinthevelocity
of 0.3 to 39.4 ft/s(0.1to12m/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 39.4ft/s (12m/s) in terms of
flow velocity.
• Where excessive vibration or mechanical shock
occurs.
• Where high temperature or high humidity
conditions exist.
• Where corrosive atmospheres exist.
• Places that can be submerged under water.
• When placing the flowmeter temporarily on the
floor, support it, i.e., with a block so that the
flowmeter does not topple over.
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 LF654 series flowmeters, refer
to Tables 4 and 5 (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
6. Other items
Specifications other than standard items
Consult a Toshiba representative when choosing
materials for lining, electrodes, and grounding rings.
Toshiba International Corp. (Houston) stocks
Hazardous location certification type
flowmeters as standard inventory.
12
TIC-LF654L
√
√
√
√
√
√
√
√ √
√ √
√ √
√ √
√ √
√ √
√ √
√
√ √
√ √
d
d
d
Table 4. Specification Code (Flange type detector LF654 Series)
Model Specification Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14
L F 6 5 Flange type electromagnetic flowmeter detector
Meter size
D ½"(15mm)
E 1"(25mm)
S 1¼"(32mm)
F 1½"(40mm)
G 2"(50mm)
W 2½"(65mm)
H 3"(80mm)
J 4"(100mm)
U 5”(125mm)
K 6"(150mm)
L 8"(200mm)
M 10"(250mm)
N 12"(300mm)
P 14"(350mm)
Q 16"(400mm) √
R 18"(450mm)
Mounting Style(Note1)(Note6)
L Detector/Converter combined type
M Detector/Converter separate type √ √
Connection flange standard, Overall lengthC ASME B 16.5 class 150, ISO length D ASME B 16.5 class 300, ISO length G EN 1092-1 PN 10, ISO length H EN 1092-1 PN 16, ISO length 1 ASME B 16.5 class 150, Toshiba length 2 ASME B 16.5 class 300, Toshiba length 5 EN 1092-1 PN 10, Toshiba length 6 EN 1092-1 PN 16, Toshiba length
C Ti (titanium)
D Pt-Ir (platinum/iridium)
E Ta (tantalum) F Hastelloy C (Equivalent) (Standard for PFA lining)
Lining Materials (Note 3)
C PFA N PU(Polyurethane) with NSF certified E HR(Hard Rubber) with NSF certifie
Grounding Ring Material (Note 3)(Note 4)
C 316 stainless steel
D 316L stainless steel
E Ti (titanium)
F Ta (tantalum)
G Pt-Ir (platinum/iridium)
H Hastelloy C (Equivalent) Flow and calibration velocity range A 1.0 to 32.8 ft/s (standard range calibration) (Note 5)Excitation and Signal Cables
Anot provide
Coating
F PU coating pearl-gray colore
Cblack tar epoxy resin
4
Z Other(Note 2)
Electrode Material (Note 3)(Note 4)
B 316L stainless steel (Standard for PU, HR lining)
Usage
cFMus Class 1 Division 2 Hazardous Location
Description
Size code explanation: √ : Object : Standard : Option –: Not available
Note1: In case of LF654 with cFMus approval, Cable glands are not provided. Refer to the part of “Cable connection port” at detector and converter.
Note2: Connection flange standard EN 1092-1 PN10, EN 1092-1 PN 16,JIS B 2220 10K and JIS B 2220 20K are optional for both ISO length and Toshiba
length.
Note3: Consult Toshiba before ordering when choosing materials at the wetting parts.
Note4: In case of PU and HR lining with NSF approval, only 316/316L stainless steel are available, and Hastelloy C & Ti are undergoing testing.
Note5: User specified range upon request, additional charges apply.
Note6: Potting kit is available for submersible option when selecting Detector/Converter separate type with PU or HR lining. Please consult Toshiba for
details.
Detector category
Gr.-A Gr.-B
√
√
–
–
–
–
–
–
–
14
TIC-LF654L
/
Table 5. Specification Code for converters
Model Specification Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14
L F 6 2 Electromagnetic flowmeter converter
0 Combined (Integral) type
2 Separate (Remote) type
F Purpose
A Shape
2 Digital input/output
E Instruction manual
Converter mounting fitting
A
C
E
Current output and Communication function(Note1)
1
2
3
Power supply(Note2)
1
2
3
cFMus class I, Division 2 approved
Standard type with case
None
Panel, Accessory for wall mounting (BNP material: SUS304)
Accessory for pipe installation (BNP material: SUS304)
Digital output points 2 (DO1+DO2) +Digital input point 1 (DI)
Current output + HART communication
PROFIBUS communication
Current output + Modbus (RS485) communication
100Vac-240Vac 50/60Hz, 110Vdc
24Vdc
110Vdc
English
Code explanation: : Standard : Option –: Not available
Note 1: When PROFIBUS communication is provided, current output(4-20mA) and HART communication cannot be used.
When Modbus communication is provided, digital output points 1(DO1) and digital output points (DO2),
digital input point 1(DI), HART communication cannot be used.
Refer to Table 6 for more details.
Note2: Select 110Vdc for test report inspected under the condition of 110Vdc.
Table6. Communication functions and output selection table
Selection of Function Availability of outputs
Code
(10th digit)
1 HART
2 PROFIBUS X
3 Modbus
Selected
Communication
4-20mAdcDO1 DO2 DI
Code explanation: :Available X:Not Available
Note: When digital output 1 function and Modbus communication function are used at one time, TG (signal ground) of the
Modbus communication function cannot be connected (2 line connection).
Contents
(Note)
X X
LF620
type
–
–
–
LF622
type
–
ISO9001 and ISO14001 are certified.
Misuse of this product can result in damages to property or human injury.
Read related manuals carefully before using this product.
15
Specifications are subject to change without notice.