产地类别 | 进口 | 产品种类 | 容积 |
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价格区间 | 面议 | 介质分类 | 气体 |
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
参考价 | 面议 |
更新时间:2017-12-14 10:05:48浏览次数:701
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Dwyer GFM3系列气体质量流量计
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 remoy 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:Dwyer GFM3系列气体质量流量计
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 100% 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).