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Dräger Polytron SE Ex PR NPT1 DD

Dräger Polytron SE Ex PR NPT1 DD
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25
For Your Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Conditions for Safe Use . . . . . . . . . . . . . . . . . . . 26
Ambient Temperature and Temperature Classes 27
Overview Sensing Heads Polytron SE Ex. . . . . . 29
Installing Equipment . . . . . . . . . . . . . . . . . . . . . . . 30
Device Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Sensing Head . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Installing Electrical Connections . . . . . . . . . . . . . 31
Connection between Sensing Heads Polytron SE Ex
PR M* DD or SE Ex LC M* DD and Device Rack 31
Connection between Sensing Head Polytron SE Ex
HT M DD and Device Rack . . . . . . . . . . . . . . . . . 32
Connection to Controller Unit Polytron with Channel
Module Polytron SE Ex . . . . . . . . . . . . . . . . . . . . 34
Connection to Controller Unit REGARD with
Channel Module REGARD Ex. . . . . . . . . . . . . . . 35
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Inhibiting the Alarms . . . . . . . . . . . . . . . . . . . . . . 36
Setting the Sensor Current . . . . . . . . . . . . . . . . . 36
Calibrating the Sensing Head
Polytron SE Ex . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Zero Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . 37
Sensitivity Adjustment . . . . . . . . . . . . . . . . . . . . . 37
Service and Maintenance. . . . . . . . . . . . . . . . . . . . 39
Maintenance Intervals . . . . . . . . . . . . . . . . . . . . . 39
Replacing the DrägerSensor . . . . . . . . . . . . . . . . 39
Switch-on after Sensor Replacement . . . . . . . . . 40
Selection of detectable Gases and Vapours . . . . 41
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Order List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Dimensions and Drilling Measures. . . . . . . . . . . . 46
Contents

Table of Contents

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