®
Technical Specifications
FM656
®
INSTRUMENTS, LLC.
Product Data Sheet
PDS-656
2026-07-31
TigermagEP
Obstructionless
Electromagnetic Flowmeter
Description
The TigermagEP is a microprocessor based
electromagnetic flowmeter designed to
measure the flow of conductive liquids in full
pipes. The sensor and transmitter are integral
and enclosed in a NEMA 7 explosion-proof
housing. The sensor housing is made of steel.
A wide variety of liner and electrodes are
available to tailor the meter to operate in many
processes.
The Tigermag's nonvolatile EEPROM memory
and circuitry eliminates the need for a
microprocessor backup battery. It is not
necessary to reprogram if the electronic
module is replaced or exchanged with
electronics from another size flowmeter.
Certified Accuracy
Each FM656 is 'wet-flow' calibrated in
Sparling's Primary Flow Lab traceable to the
National Institute of Standards and Technology
(NIST).
Principle of Operation
Sparling magnetic flowmeters are based on
Faraday's Law which states that the voltage
induced in a conductor moving through a
magnetic field is proportional to the velocity of
that conductor. Accuracy is minimally affected
by changes in temperature, pressure, viscosity,
or conductivity.
Applications
The Model FM656's high signal frequency
makes it ideally suited to applications with high
levels of inherent noise including: Process
Chemicals, Heavy Slurries, Polymers, Acids,
Alkalines, Sewage, Cooling Water. Nearly any
conductive liquid can be measured.
Features
•
Sampling frequency up to 100Hz for
accurate measurement of fluids with
high levels of inherent noise.
•
Forward, reverse and net totalization
•
Programmable high and low flow
alarms
•
Nonvolatile EEPROM Memory
•
Universal electronics module
compatability
•
2-Line, 16 character backlit display
•
Programming made easy with
Mag-Command™
•
Low Flow Cutoff
•
NEMA 4X/NEMA 7 explosion proof
enclosure
•
Accidental Submergence (NEMA 6/
IP67), Permanent Submergence
(NEMA 6P/IP68) and Direct Burial
Sensors available
•
Approvals Include: FM, CSA and NSF
61
•
Rotatable Modular Display
•
Empty pipe detection
•
PZR - Positive Zero Return
•
Standard 0.5% Accuracy
•
Sizes available from 0.1" - 72"
®
INSTRUMENTS, LLC.
Installation
The meter must be mounted at a point in the line which is always full of
process liquid under flowing conditions.
A minimum of three diameters of straight pipe length are required from
the center of the meter to normal obstructions to obtain specified
accuracies.
The meter may be equipped with the following flanges: ANSI 150 or
300#, AWWA, DIN, PN 10 or 16, JIS or British Standard.
Easy To Read Backlit Rotatable Display
The 16 character, 2-line backlit Totalizer display is rotatable 360° in 90°
increments ensuring easy reading in any orientation.
Nonvolatile EEPROM Memory
A backup battery is not required and there is no need to reprogram if
the electronics module is replaced or exchanged. Meter identification
(tube ID, serial number, K, offeset, etc.) is stored on an EEPROM chip
independent of transmitter electronics. The EEPROM chip has lifetime
data retention.
Empty pipe detection
The Sparling TigermagEP is designed to detect absence or inadequate
volume of process fluid in the pipe and will hold the output signal to
4mA or zero. This feature does not require any hard wiring as it is a
software selection. One of the most important values of this feature is
that it prevents false totalization possible with other meters under
partially filled pipe conditions
Ease of Communications
The TigermagEP is programmable with Mag-Command, Modbus or Hart
Protocol. 4-20mA, RS-232 or RS-485 outputs give you flexibility when
interfacing with your distrubuted control system.
Hi-Z Circuitry
The Sparling TigermagEP provides superior performance in liquids which
tend to deposit nonconductive coatings. Hi-Z circuitry produces a high
input impedance to the transmitter's preamplifier (1x10
12
Ohms). The
impedance of the coating is negligible as compared to the impedance of
the receiving instrument. The voltage drop across the electrode coating
is also negligible eliminating the need for electrode cleaners.
Remote Mounted Transmitter
Remote mounting of the transmitter is required when pipe vibration is
excessive, when flooding is possible or where high termperature
conditions exist (over 100°F).
The TigermagEP remote transmitter is housed in a NEMA-4X enclosure
and features a larger sized (8mm) 16 digit 2-line backlit display. All
power, coil, and elctrode connections are made within the transmitter
enclosure and junction box. The meter is programmed using
Mag-Command. Hall-effect switches which are energized from outside
the enclosure. The enclosure can be wall mounted. An optional bracket
for pipe mounting is available.
Grounding
The use of grounding rings is recommended to ensure accuracy.
Grounding rings are required if adjacent piping is lined or
nonconductive. Pump noise or excessive RF should be minimized to
achieve highest accuracy.
PZR - Positive Zero Return
An electronic circuit is activated by an external contact closure when
lines go empty or when a pump or valve is shut down, indicating to the
meter that it should drive the output signal to 4mA or 0.
Removable Electrodes
Two configurations of removable electrodes are available in sizes of 6"
or greater for all FM656 meters. The first configuration allows removal
of the electrode after the line has been depressurized and drained.
Removal is performed with an 11/32" nut driver and a 3/4" socket
wrench.
The second is the "hot-tap" electrode which allows electrode
replacement while the system is still under pressure without disturbing
the process flow. Removal can be easily performed with a phillips
screwdriver and a crescent wrench. Special locking catches were
designed to prevent high pressure accidents during electrode removal.
The shut-off valve must be closed before the electrode may be
removed.
Two flow alarms
Fault alarms can be configured with alarm set points between 0-99% of
flow for each alarm. Open collector output turns on above programmed
set point.
®
INSTRUMENTS, LLC.
Flow Rates & Dimensions
Meter
Size
(in)
Dimensions (in)
Flow Rates (GPM)
A
B
C
D
150#
300#
150#
300#
150#
300#
150#
300#
1 fps
3 fps
33 fps
0.100
4.00
4.00
3.50
3.75
9.50
9.62
9.25
9.30
0.0382
0.115
1.26
0.250
4.00
4.00
3.50
3.75
9.50
9.62
9.25
9.30
0.153
0.459
5.05
0.375
4.00
4.00
3.50
3.75
9.50
9.62
9.25
9.30
0.342
1.03
11.3
0.500
4.00
4.00
3.50
3.75
9.50
9.62
9.25
9.30
0.568
1.71
18.8
1.00
4.00
4.00
4.25
4.88
10.2
10.5
9.94
10.2
2.02
6.07
66.7
1.50
4.00
4.00
5.00
5.12
10.9
11.4
10.6
11.2
5.29
15.9
174
2.00
4.00
4.00
6.00
6.50
11.7
11.9
11.4
11.6
9.18
27.5
303
2.50
6.00
6.00
7.00
7.50
12.6
12.9
11.6
11.9
13.1
39.2
431
3.00
6.00
6.00
7.50
8.25
13.0
13.4
12.8
13.2
20.1
60.4
664
4.00
6.00
6.00
9.00
10.0
14.4
14.9
14.1
14.6
35.8
107
1180
6.00
13.4
14.9
11.0
12.5
17.0
17.8
16.8
17.5
88.1
264
2910
8.00
13.4
15.4
13.5
14.2
19.4
19.8
19.1
19.5
157
470
5170
10.0
18.1
20.6
16.0
17.5
22.6
23.3
22.3
23.1
245
734
8070
12.0
19.4
21.8
19.0
20.5
25.0
25.8
24.8
25.5
352
1060
11600
14.0
21.4
23.8
21.0
23.0
26.7
27.7
26.4
27.4
430
1290
14200
16.0
23.4
25.9
23.5
25.5
29.0
30.0
28.7
29.7
569
1710
18800
18.0
27.2
29.9
25.0
28.0
31.1
32.6
34.9
32.4
728
2180
24000
20.0
27.6
30.4
27.5
30.5
33.4
34.9
33.1
34.6
907
2720
29900
24.0
32.8
35.8
32.0
36.0
37.4
39.4
37.2
39.2
1310
3920
43100
30.0
43.5
46.6
38.8
43.0
43.7
45.9
43.5
45.6
2070
6220
68400
36.0
47.8
50.9
46.0
50.0
50.2
52.2
50.0
52.0
3010
9040
99500
42.0
51.8
55.1
53.0
57.0
56.9
58.9
56.6
58.6
4110
12300
136000
48.0
51.8
55.4
59.5
65.0
63.0
65.8
62.8
65.5
5400
16200
178000
54.0
53.5
*
66.2
*
69.9
*
69.6
*
6810
20400
225000
60.0
65.5
*
73.0
*
76.8
*
76.5
*
8810
26400
291000
66.0
65.5
*
80.0
*
83.8
*
83.5
*
10700
32000
352000
72.0
72.8
*
86.5
*
90.0
*
89.8
*
12700
38100
419000
Dimensions for flanges. Allow 0.125" to 0.25" for lining thickness/Dimensions C & D ±0.125"
Flow Rates: 0.25" - 4" flow rates are for FEP/PTFE, Poly, and HR liners. Ceramic sensor flow rates differ slightly. Please
see
PDS-626
for ceramic sensor flow rates for 0.25" - 4"
How to order a TigermagEP
Table 1: BaseModelNumber
FM656
-
Flanged Tigermag
Table 2: Size
AA
-
0.1"
OA
-
0.25"
OB
-
0.375"
OD
-
0.5"
OF
-
1"
OG
-
1.5"
02
-
2"
OH
-
2.5"
03
-
3"
04
-
4"
06
-
6"
08
-
8"
10
-
10"
12
-
12"
14
-
14"
16
-
16"
18
-
18"
20
-
20"
24
-
24"
30
-
30"
etc.
Table 3: LinerMaterial
1
-
Hard Rubber (1-72")
5
-
Polyurethane (2-72")
6
-
Ceramic
1
(0.1-4")
8
-
FEP (0.25-48")
A
-
Polyurethane for potable water (2-72")
Table 4: ElectrodeMaterial
1
-
316 SS
2
-
Hastelloy C
3
-
316 SS BN
4
-
Titanium
5
-
Tantalum
6
-
Fused Pt: Ceramic Liners
7
-
Platinum: Other Liners
8
-
Zirconium
9
-
Monel
0
-
Tungsten Carbide
B
-
HastC BN
D
-
Titanium BN
E
-
Tantalum BN
G
-
Platinum BN
H
-
Zirconium BN
I
-
Monel BN
Table 5: FlangeRating
1
-
AWWA Cl (150#)
3
-
AWWA Cl (300#)
A
-
ANSI B16.5 Cl 150
B
-
ANSI B16.5 Cl 300
C
-
ANSI B16.5 Cl 400
D
-
ANSI B16.5 Cl 500
S
-
Tri-Clamp (Sanitary)
Table 6: Transmitter
F
-
Integral NEMA 4X encl.
G
-
Integral NEMA 4X encl. Battery Operated
0
-
Integral NEMA 7 encl.
1
-
Remote NEMA 7 encl. encl., 15ft Cable
2
-
Remote NEMA 7 encl. encl., 15ft Cable, Perm. Sub
3
-
Remote NEMA 7 encl. encl., 15ft Cable, Acc. Sub
4
-
Remote NEMA 7 encl. encl., 15ft Cable, Direct Burial
5
-
Remote NEMA 4X encl. encl., 15ft Cable
6
-
Remote NEMA 4X encl. encl., 15ft Cable, Acc. Sub
7
-
Remote NEMA 4X encl. encl., 15ft Cable, Direct Burial
8
-
Remote NEMA 4X encl. encl., 15ft Cable, Perm. Sub
Table 7: PowerCube
0
-
77-265 VAC
1
-
12-60 VDC
Table 8: Options
HART, Modbus, RS485, RS232
High Temperature Coils (Req Over 266°F)
Hot Tap Removable Electrodes (4"+)
Removable Electrodes (4"+)
Add Cable (15ft - 300ft)
Relay for Fault and Flow Alarms
Model
Size
Liner
Electrode
Flange
Transmitter
Power
FM656
24
8
7
A
5
1
1. Ceramic Liner not available in the following sizes: 0.375" or 2.5"
3. FM approval is up to 120V
Note: Remote enclosure shown for meters shipped after
July '16
Please call factory for dimensions shipped
July '16
and before
®
INSTRUMENTS, LLC.
Standard Specifications
Accuracy:
0.1" - 0.25": ±1% of flow (1fps - 33fps)
0.5" - 8": ±0.5% of flow (1fps - 33fps)
Temp Effect:
±0.025% FS/°C
Full Scale Ranges:
From 0fps - 3fps to 0fps - 33fps
Repeatability:
±0.1% of full scale
Electrodes:
316 SS Standard (others available)
Liner:
Hard Rubber, Polyurethane, Ceramic, FEP/PTFE, Polyurethane liner for potable water certified to NSF61
Outputs:
1)
Isolated analog 4mA - 20mA DC into 800 Ohms
2)
Scaled Pulse 24VDC with selectable 12.5 / 25 / 50 / 100 ms on time, max.freq. 60Hz
3)
0Hz - 1000Hz Freq., for 0%-100% of flow rate, 15VDC
4)
Two flow alarms
5)
Fault, with open collector
6)
RS232 communication
7)
Flow direction with open collector
8)
Positive Zero Return (PZR) for external relay contacts. Outputs 2 and 3 can be open collector if
required.
9)
HART Protocol Available
10)
Modbus Protocol Available
Mag-Command™:
Selection and change of meter parameters by magnetic probe without opening the enclosure.
Display:
2-Line, 16 Digit alphanumeric backlit display (rate and total). Modular, rotatable 360° in 90° increments
Min Velocity
1
:
0.3fps
Power Requirements:
77-265VAC / 12-60VDC
Power Consumption:
Less than 20 W
Enclosures:
Cast alumnium epoxy coated. Integral NEMA 7 encl. or Remote NEMA 4X encl.
Sensor Housing:
Fabricated steel, epoxy coated
Preamp Impedance:
1x10
12
Ohms minimum
Amb. Temp:
-20°F - 140°F (-29°C - 60°C) Display darkens over 158°F (70°C)
End Connections:
150# or 300#
Sensor Tube:
304 Stainless Steel
Process Temp:
Integral Mount:
•
Hard Rubber, Neoprene, Polyurethane, Food Grade Polyurethane: -40°F - 180°F
•
TEF, Ceramic: -40°F - 212°F
Remote Mount (opt):
•
TEF, Ceramic: -40°F - 266°F
High Temperature Coils (opt):
•
TEF: -40°F - 300°F
•
Ceramic: -40°F - 420°F
Selectable Damping:
0-99 Seconds
Minimum Conductivity:
5 µ siemens
Low Flow Cutoff:
Selectable 0-9% of full scale
1
Minimum Velocity is the lowest velocity the meter will show a reading. Accuracy, however, is subject to the limits above.
Model FM656 Specification available on request
