HFM-D-301A/HFC-D-303A
Fast Response, Tight Accuracy!
Mass flow techniques provide RELIABLE, REPEATABLE AND ACCURATE gas flow rate measurements.
HFM-D-301A/HFC-D-303A mass flow instruments have flow ranges from 0-25 slm to 0-1000 slm; provide analog and digital outputs, and are constructed of stainless steel. Easy, user friendly digital communications with windows based software interface available. Available with a variety of elastomer seals for maximum flexibility.
Self diagnostics of the sensor, valve and overflow are included in the digital features. Also of interest is the auto zero feature which detects when the valve is closed and automatically resets the zero. These mass flow meters and controllers can store up to 10 calibrations of different ranges and gases. Another feature is the built in totalizer for monitoring gas usage under user set conditions.
Features
| Range | (L): 0 – 25 slm to 0 – 300 slm (N2) |
| (H): 0 – 1000 slm to 0 – 3000 slm | |
| Accuracy | + (0.5% of reading + 0.2% of full scale) |
| Repeatability | + 0.15% of full scale |
| Maximium Working Pressure | 500 PSIG (Optional 1000 PSIG) |
| Settling Time | Typically <1 seconds |
| Analog I/O (Standard) | 0 – 5 VDC |
| Analog I/O (Optional) | 0 – 10 VDC, 0-20 mA, 4 – 20 mA |
| Digital I/O (Standard) | RS-232, RS-485 |
| Analog Connector | 15-pin subminiature D |
| Dingial Connector | Dual RJ-12 |
| Fittings | Surface Mount, Swagelok®, VCO, VCR, NPT |
| Power Requirements | 11 – 36 VDC |
| Wetted Materials | 316L SS, Nickel 200, 304 SS, 302 SS |