Detcon DM-434B Manual de usuario

Model DM-434BOxygen Deficiency Sensor (0-25% O2)Operator’s Installation & Instruction ManualOctober 21, 2008 • Document #2021T • Version 1.7CAUTIO

7.2 Calibration1) Declassify the area around the sensor.2) Remove the junction box cover.3) Measure the voltage between signal test points. If neces

9.0 WARRANTYDetcon, Inc., as manufacturer, warrants each new O2 plug-in sensor cell, for a two year period under theconditions described as follows:

Table of Contents1.0 Description2.0 Principle of Operation3.0 Application4.0 Specifications5.0 Installation6.0 Start-up7.0 Calibration8.0 Spare Parts

1.0 DESCRIPTIONDetcon Model DM-434B, oxygen sensors are designed to detect and continuously monitor O2 in air over therange of 0-25%. Method of dete

1.3 Terminal BoardThe terminal board is mounted in the explosion proof enclosure and includes: the mating connector for thecontrol circuit, reverse i

2.0 PRINCIPLE OF OPERATIONMethod of detection is by a controlled rate of diffusion. Air and gas diffuse through a sintered stainlesssteel filter and

Linearity± 0.5% FSOutputLinear 4-20 mA DCInput Voltage11.5-28 VDCPower Consumption< 0.6 wattsElectrical ClassificationClass I; Groups B, C, D; Div.

by facility engineers with experience in similar processes.Ventilation - Normal ventilation or prevailing wind conditions can dictate efficient locati

c) Terminate 2 conductor field wiring to the sensor terminal board observing correct polarity in accor-dance with the detail shown in figure 3.d) Repl

6.0 START UPUpon completion of all mechanical mounting and termination of all field wiring, apply system power andobserve the following normal condit