Trafag NHT 8250 Hydrogen Pressure Transmitter

They are available in many different designs to suit pressure and electrical connections, measuring procedures, electrical output signals and certifications (CE, EX, rail and ship).

About Pressure Transmitters

Pressure transmitters are electronic pressure gauges and are used to measure and monitor pressure. The term pressure transmitter is also often used for pressure transducers or pressure sensors. However, this is not a synonym, since the term pressure sensor in the narrower sense only describes a part of the pressure transmitter.

Description of Trafag NHT 8250 Hydrogen Pressure Transmitter

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

Main Features of NHT 8250 Hydrogen Pressure Transmitter

EC79/2009 certified by the KBA Kraftfahrt-Bundesamt
Wetted materials made of hydrogen-compatible steel
Completely welded sensor system without additional seals
Excellent long-term stability

Technical Data of NHT 8250

More Information
Product code	8250
Name	NHT
Designation	Hydrogen Pressure Transmitter
Product category	Pressure transmitters
Measuring range	0 … 1 to 0 … 600 bar (0 … 15 to 0 … 7500 psi)
Measuring principle	Thin-film-on-steel
Applications	Fuel cells Hydrogen compressors Hydrogen tanks Vehicles with H drive
Approval / conformity	EC79/2009: e179/2009406/20100004700
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 ratiometric
Electrical connections	Industrial standard, contact distance 9.4 mm; M12x1; MIL-C 26482; Cable IP67
Pressure 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)