The mass flow meter (MFM) Type 8703 is suited for measuring the mass flow of gases over a big flow range. The thermal MEMS sensor is located directly in the gas stream and therefore reaches very fast response times. Type 8703 can optionally be calibrated for two different gases; the user can switch between these two gases. The communication with master devices is fully digital, therefore no further analog/digital conversions are needed.
| Seal | FKM, EPDM |
| Housing | Stainless steel sheet 1.4301 |
| Base block | Aluminium or stainless steel 1.4305 |
| Total weight | Approx. 500 g (aluminium) |
| Nominal flow range (QN) | 10 ml/min…80 l/min regarding N 2 |
| Operating pressure | Max. 10 bar (145 psi) (depending on the nominal diameter of the proportional valve) |
| Repeatability | ± 0.1 % FS |
| Measuring span | 1:50 (higher measuring span on request) |
| Response time (t95 %) | < 300 ms |
| Operating voltage | 24 V DC |
| Power consumption | Max. 5 W |
| Residual ripple | < 2 % |
| Voltage tolerance | ± 10 % |
| Electrical connection | D-Sub plug, 9-pin |
| Medium temperature | - 10 °C…+ 70 °C (- 10 °C…+ 60 °C for oxygen) |
| MOQ | 1 |