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CWT® GFM™流量计
CWT® GFM™, Gas Flow Monitor 气体流量计
CWT GFM, GAS FLOW MONITOR, PORTABLE便携式气体流量计

The Gas Flow Monitor (GFM™) precisely measures flow rates of welding shielding gases using the state of the art MEMS flow sensor with OLED graphic display.

A0A0161

The Gas Flow Monitor (GFM™) precisely measures flow rates of welding shielding gases using the state of the art MEMS flow sensor with OLED graphic display.

The GFM™ has 6 selectable gas settings, ARGON, Argon/ CO2 (90/10), Argon/ CO2 (80/20), Argon/ CO2 (75/25), Helium, and CO2. The GFM™ can be custom ordered and configured for additional gas mixturess.

A flow rate (5 to 255 SCFH) is digitally displayed with a 1 SCFH resolution.  The accuracy of the 3% of full scale reading on the GFM™ is considerably better than conventional ball type flow meters.

The GFM™ can be installed in-line, downstream of the gas regulator for permanent installations, and is available in a battery powered configuration with a rubber cone for testing gas flow at the welding torch nozzle throughout the shop.

Measurement Range5-255 SCFH (2-120 LPM)
Display Resolution+/- 1 SCFH (+/- LPM)
Accuracy+/- 3% of full scale +/- 1 digit
Operating Pressure50 PSIA maximum (344 KPA)
Fault Relay OutputOpto-Isolated SSR (Solid State Relay)
Relay Ratings48 vac @ 0.5 amp non-inductive, 48 vdc @ 1.0 amp non-inductive
Analog Sensor Output0.-2.55 vdc @ 10 ma
Analog Scaling0.01 vdc = 1 SCFH (0.01 vdc = 1 LPM)
Dimensions2-13/16"W x 3-1/2"H x 2-13/16”L
(71.4 mm W x 88.9 mm H x 71.4 mm L)
Weight19 oz. (539 gm)
Pipe Fittings3/8" NPT with 3/8" hose barb fittings
Pipe Fittings Recommended Torque Specifications15 +/- 5 in lb. (1,7 +/- 0,6 N m)
Power Requirements10-28 vdc @ 100 ma
Battery Charger120 vac 60 hz @ 300 ma or 220 vac 50 hz @ 300 ma
Battery LifeApproximately 24 hours with a full charge
Operating Temperature+20º F to +140º F (-7º C to +60º C)
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