INSTRUMENTATION

NHT 8250 (Hydrogen)
Trafag
Instrumentation / Primary instrumentation (flow, temperature, level and pressure)

NHT 8250

(Hydrogen)

The NHT 8250 hydrogen pressure transmitter features a thin-film steel sensor based on a special high-performance hydrogen-compatible alloy for best-in-class signal stability. The robust mechanical design with all-welded housing is built to last in harsh environments.

  • Measuring range: 0 .... 1 to 0 ... 600 bar (0 ... 15 to 0 ... 7500 psi)
  • Measuring principle: Thin steel film
  • Approval/Conformity: EC79/2009: e1*79/2009*406/2010*00047*00
  • Accuracy @ 25°C typ.: ±0.5% FS typ. ±0.3% FS typ.
  • Output signal: 4 ... 20 mA, 0.5 ... 4.5 VDC, 0 ... 5 VDC, 1 ... 5 VDC, 1 ... 6 VDC, 0 ... 10 VDC, 0.1 ... 10.1 VDC, 0.5 ... 4.5 VDC radiometric, Switching output: 1 or 2 PNP
  • Electrical connections: Industry standard, contact distance 9.4 mm; M12x1; MIL-C 26482; Cable IP67
  • Process connections: G1/4" m, 1/4"NPT m, 7/16"-20UNF SAE4 m
  • Media temperature: -40°C ... +85°C
  • Ambient temperature: -40°C ... +85°C (Cable PVC 22: -5°C ... +60°C) (Cable PUR 24: -40°C ... +70°C)