Specifications

Recommended Voltage:                  2.2.V  +/- 0.1V

Current Drawn:                                  160+/- 10mA

Zero Offset:                                    0mV +/- 25mV

Minimum Sensitivity:                   15mV/% NH₃/Air

Range:                                              0-100% LEL

Accuracy:                         +/- 200ppm %LEL(NH₃)

Maximum Long Term Drift:

   Span:                                  <+/- 1% LEL/Month

   Zero:                                      <+/- ½ mV/Month

Response Time:              T50: 12 sec  T90: 40 sec

Temperature Range:                       -20°C to +70°C

Temperature Drift: (-20°C to +70°C)

Zero:                                                < +/- 2%LEL

Humidity:                    0-100%RH, non-condensing

Humidity Response:                             +/- 2%LEL

Linearity:                    Effectively linear to 50%LEL

The Nemoto NET-3X-AN Pellistor Gas sensor head is a stainless steel enclosure supplied fitted with a Nemoto NP-AN twin header catalytic flammable gas sensor (pellistor). The device is optimised for the detection of Ammonia in air in range 0-100% LEL but is stable and sensitive enough to be used for ranges as low as 0-5,000ppm, with alarm levels as low as 1,000-2,000ppm without false alarms, provided good quality circuitry is employed.

The NET-3X-AN is a 2-part assembly which may be disassembled in order to replace the internal sensor when expired. The enclosure is fitted with an external M46 thread at the front end to allow easy fitting of accessories. A choice of four standard rear mounting threads is offered (x = see thread code)

THE NET-3X-AH IS ATEX APPROVED
CESI 01 ATEX 066 U

Datasheet
(PDF)