Gas Mass Flow Controller/Meter Category:Dwyer instruments Description: Dwyer Series GFC/GFM Gas Mass Flow Controller/MeterFlow Range up to 1000 l/min, Pressures up to 500 psi, NIST TraceableDwyer Series GFC/GFM Gas Mass Flow Controllers/Meters combine a straight tube sensor with a restrictor flow element to provide high accuracy and repeatability. Flow rates are virtually unaffected by temperature and pressure variations. Actual gas flow is displayed in engineering units on a 3-1/2 digit, 90° tiltable LCD readout. Units can be used with Series GFT Flow Totalizer for applications requiring totalization. Series GFC/GFM includes a NIST traceable certificate. Gas mass flow controllers utilize an electromagnetic valve and PID electronics to maintain continuous control by comparing measured sensor signal set to flow rates. Setpoints can be adjusted with local potentiometers or remotely via 0 to 5 VDC or 4 to 20 mA analog signal.
Service: Clean gases compatible with wetted
parts. Wetted Materials: GFC/GFM-1XXX: Anodized Aluminum, Brass, 316 SS and Viton® O-rings; GFC/GFM-2XXX: 316 SS and Viton® O-rings. Accuracy: ±1.5% FS including linearity over 59 to 77°F (5 to 25°C) and 5 to 60 psia (0.35 to 4 bar). Repeatability: ±0.5% of full scale. Response Time: 2 seconds to within ±2% of actual flow. Output: Linear 0-5 VDC and 4-20 mA. Max. Particulate Size: 5 microns. Temperature Limits: 32 to 122°F (0 to 50°C). Power Supply: ±12 VDC. Process Connections: 1/4" compression fitting for flow rates ≤50 L/m; 3/8" for 100 and 200 L/m; 1/2" for 500 L/min; 3/4" for 1000 L/min. Pressure Limits: 500 psig (34.5 bar). Leak Integrity: 1 x 10-7 sccs of Helium. Display: 90° tiltable, 3-1/2 digit. Agency Approvals: CE. ACCESSORIES For Series GFC Gas Mass Flow Controllers GFC-110P - 110V Power Supply GFC-220PE - 220V Power Supply GFC-CBL1 - 8 ft cable with 15-pin connector GFC-CBL3 - 3 ft extension cable for LCD readout IO-1 - 0-5 VDC to RS232 Input to Output Signal Conditioner For Series GFM Gas Mass
Flowmeters
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