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Instrumentation・Industrial equipment・System

Electromagnetic Flowmeter GF642/LF622

LF622 & GF642 (Separate type) image. Certification No. Z01207 image.

General Specificaition

Combined with a multi-functional converter LF622 (Separate type) equipped with its original Noise-suppression Circuit & Advanced Algorithms, The GF642 has a very high tolerance to noise, giving the unit a very stable output even for slurry fluid measurement.

The AF900 Hand-held terminal (HART*1Communicator) can be used for remote control. PROFIBUS-PA*2 or Modbus*3 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 automation and process automation that the PROFIBUS Organization recommends.
Instead of analog control with a conventional analog signal (4-20mA), it is one kind of the fieldbus which digitizes all signals.
*3
Modbus is the communication protocol that Modicon Inc. developed.
Physical layer is RS485.

Main Specifications

Main Specifications List

Mounting style Flange connection type
Meter size
ASME B 16.5 class 150
20", 24"(500, 600mm)
AWWA C207 class D
28", 30", 32", 36", 40", 42", 60", 66", 72"(700, 800, 900, 1000, 1200, 1350, 1650, 1800, 1950mm)
EN1092-1 PN6, GB9119 0.6Mpa
28", 30", 32", 36", 40", 48", 54", 66", 78"(700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000mm)
EN1092-1 PN10, GB9119 1.0Mpa
20", 24", 28", 30", 32", 36", 40", 48", 54", 66", 78" (500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000mm)
Measuring range in terms of flow velocity 0-0.3m/s to 0-10m/s (0-0.1m/s to 0-0.3m/s as option)
Accuracy Flow rate Flow speed of full scale
1.0 - 3.28ft/s
(0.3 - 1.0m/s)
3.28 - 32.8ft/s
(1.0 - 10m/s)
0 - 100%FS +/-0.8% FS +/-0.5% FS
Lining materials
(Meter size: mm)
Natural rubber: 500 to 2000mm
Fluid temperature -10 to +60℃: 500 to 900mm
-10 to +40℃: 1000 to 2000mm
Electrode materials AISI 316L
Titanium
Hastelloy C equivalent
Grounding ring materials None
Ambient tempearture -20 to +60℃
Structure IP67
Power consumption 10W (14VA) at AC100V and Excitation current: 0.2A
Power supply AC100V to AC240V, 50/60Hz (Standard) Allowable voltage AC80V to AC264V
DC24V (Option) Allowable voltage DC18V to DC36V
DC110V (Option) Allowable voltage DC90V to DC130V

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