Specifications

Recommended Voltage:             2.0V  +/- 0.1V

Current Drawn:                             175+/- 20mA

Zero Offset:                                 0mV +/- 25mV

Minimum Sensitivity:              12mV/% CH4/Air

Range:                                           0-100% LEL

Accuracy:                                 +/- 1%LEL(CH4)

Maximum Long Term Drift:

    Span:                              <+/- 1% LEL/Month

   Zero:                                   <+/- ½ mV/Month

Response Time:          T50: 10 sec  T90: 35 sec

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

Temperature Drift: (-20°C to +70°C)

Zero:                                             < +/- 3%LEL

Humidity:                0-100%RH, non-condensing

Humidity Response:                        +/- 2%LEL

Linearity:                Effectively linear to 60%LEL 

The Nemoto NET-3X-17 Pellistor Gas sensor head is a stainless steel enclosure designed to accommodate the Nemoto matched pair pellistor series NP-17 for use as a complete field device operating as a part of a fixed gas detection system.

This head consists of a stainless steel flame proof enclosure comprising three components:

• The lower part contains the integral stainless steel sinter filter to allow the safe entry of the atmosphere being detected;

• The upper part, or main body, houses the sensor. The sensor is located in a plastic spacer that holds the sensor in the best position for optimum detection performance.

• The Sensor, an NP-17 matched pair pellistor

Sensors are field replaceable.

The enclosure is fitted with an external M46x1.5mm 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-17 IS ATEX APPROVED:
CESI 01 ATEX 066 U

Datasheet
(PDF)

Performance
Information
(PDF)