Series GFM - Gas Mass Flowmeters
PHYSICAL DATA
Media: Clean gases compatible with wetted parts.
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: ±5% of full scale.
Operating Temperature: 32 to 122°F (0 to 50°C)
Maximum Gas Pressure: 500 psig (34.5 bar).
Response Time: 2 seconds to within ±2% of actual flow.
Power Supply: ±12 VDC.
Output: Linear 0-5 VDC and 4-20mA.
Temperature Coefficient: 0.15% FS/°C.
Pressure Coefficient: 0.01% FS/psi (0.07 bar).
Leak Integrity: 1 x 10&sup-7; sccs of Helium.
Max. Particulate Size: 5 microns.
Display: 90° tiltable, 3½ digit
Computer Interface: RS-485
Process Connections: ¼" compression fitting for flow rates less than or equal to
50 L/m; 3/8" for 100 and 200 L/m; ½" for 500 L/min; ¾" for 1000 L/min
Wetted Parts: Anodized aluminum, 316 SS, brass, and Viton® O-rings.
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