The Dwyer SERIES GFM2 Gas Mass Flow Meter is an ideal choice for the measurement of flow rates of a wide variety of gases. Unit can be calibrated for a variety of gases with user selectable 0 to 5 VDC or 4 to 20 mA and two relay outputs and programmable totalizer that indicates total gas quantity.
- Gas flow measurement
- Gas glow control
- Operating pumps and valves
- Process equipment
- Vacuum processes
- Glass and metal coating
- Film deposition
Service : Clean gases compatible with wetted parts.
Wetted Materials : > GFM2-X-X-A: Anodized aluminum, brass, 316 SS fluoroelastomer O-rings;GFM2-X-X-S: 316 SS, and fluoroelastomer O-rings; Buna-N, EPR and PTFE O-rings optional.
Accuracy : ±1% FS.
Repeatability : ±0.25% FS.
Response Time : 2 seconds to within ±2% of actual flow.
Output Signal : Linear 0 to 5 VDC (3000 Ω min. load impedance) and 4 to 20 mA (500 Ω max. loop resistance).
Relay Rating : 1 A @ 24 VDC.
Max. Particulate Size : 5 microns.
Temperature Limits : 32 to 122°F (0 to 50°C).
Power Supply : 11 to 26 VDC.
Process Connections : 1/8″ compression fitting for flow rates ≤10 L/min; 1/4″ for ≤50 L/min; 3/8″ for ≤100 L/min.
Display : 2 x 16 character LCD (optional).
Pressure Limits : 500 psig (34.5 bar).
Leak Integrity : 1 x 10-9 smL/sec of helium.
Weight : 1.05 lb (0.48 kg).