Dwyer GFM2系列质量流量计

The 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.

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).

EXAMPLEGFM2AIR010ABALA2Series GFM2-AIR-010-A-B-A-L-A-2, Gas Mass Flow Meter

SERIESGFM2GFM2 Gas Mass Flow Meter