Fiche technique


The Detcon Model DM-500IS-SiH4 Detector is designed to detect and monitor SiH4 in air in the 0 to 50 ppm range.

The sensor assembly consists of an electrochemical fuel cell mounted in a stainless steel and ABS plastic housing incorporating a splash guard with integrated heat port, a signal conditioning control transmitter circuit, a base board and a explosion-proof junction box.

The intrinsically safe sensor housing design allows direct contact of the target gas with the electrochemical sensor, maximizing response time, detectability and repeatability.

And because the intrinsically safe design does not use stainless steel flame arresters, it eliminates imprecise readings due to target gas absorption.

  • CSA and UL Listed: Class 1, Div. 1, Groups B, C and D

  • 4-20 mA output

  • Simple Menu Driven Calibration - takes less than 3 minutes

  • Backlit LCD display and LEDs for fault and Cal status

  • Universal transmitter

  • Intrinsically safe sensor housing

  • Replaceable transmitter plug-in

  • Electrochemical pluggable sensor

Sensor type

Electrochemical fuel cell

Measuring range

0-50 ppm Silane

Other ranges available


±2% FS

Response / compensation time

T90 <60 seconds

Span Drift

<1% signal loss per month

Operating temperature range

-20 ° C to + 40 ° C; -4 ° F to + 104 ° F

Operating humidity range

20-95% RH without condensation


Linear 4-20 mA DC