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GFM3系列質(zhì)量流量計(jì)

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TheSeriesGFM3GasMassFlowMeterisanidealchoiceforthemeasurementofflowratesofawidevarietyofgases

詳細(xì)介紹

The Series GFM3 Gas Mass Flow Meter is an ideal choice for the measurement of flow rates of a wide variety of gases. This digital flow meter features a 12-digit totalizer for total gas volume indication, and is available in the choice of 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA output signals. Standard LCD and four button keypad allows easy access to the many features of the GFM3. Digital interface operates through available RS-485 or RS-232, providing access to internal data parameters and multi-drop capability of up to 255 units (RS-485 only). Set alarms remotely via digital interface for flow to alert user of high or low thresholds being exceeded. With a high ±1% FS accuracy and±0.25% FS repeatability, the GFM3 is the optimal choice in gas flow metering and monitoring. The GFM3 comes with a NIST traceable certificate.

Service:

Clean gases compatible with wetted parts.

Wetted Materials:

316 SS, 416 SS; Fluoroelastomer, Buna-N, EPR or PTFE O-rings.

Accuracy:

±1% FS.

Repeatability:

±0.25% FS.

Response Time:

0.6 to 1.0 s to within ±2% of setpoint over 20 to 99% FS.

Output Signal:

Output Signal: Linear 0 to 5 VDC (3000 Ω min. load impedance); 0 to 10 VDC (6000 Ω min. load impedance); 4 to 20 mA (500 Ω max. loop resistance).

Relay Rating:

1 amp @ 24 VDC.

Max. Particulate Size:

5 microns.

Temperature Limits:

Ambient: 32 to 122°F (0 to 50°C); Dry Gases: 14 to 122°F (-10 to 50°C).

Power Supply:

12 VDC; 15 VDC; ±24 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.

Pressure Limits:

500 psia (35 bar).

Leak Integrity:

1 x 10-9 smL/sec of helium.

Display:

128 x 64 graphic LCD with backlight.

Weight:

1 lb (.45 kg).

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