Dräger PEX 3000 User Manual

Contents
Scope of this manual......................................................................................................4
Intended use...............................................................................................................4
Revision 4 manual includes.......................................................................................4
Introduction....................................................................................................................4
Description.................................................................................................................4
Main circuit board..................................................................................................4
Display circuit board..............................................................................................5
Pellistor input board (Optional).............................................................................5
Options board (Optional).......................................................................................6
Enclosure................................................................................................................6
Installation......................................................................................................................6
Unpacking..................................................................................................................6
Mounting....................................................................................................................6
Cabling.......................................................................................................................7
Mains supply..........................................................................................................7
Transmitter.............................................................................................................7
Alarms....................................................................................................................7
Remote reset...........................................................................................................7
Location .....................................................................................................................8
Internal batteries.........................................................................................................8
Commissioning..............................................................................................................9
Factory defaults..........................................................................................................9
Set measuring range...................................................................................................9
Set alarm levels (control unit with display).............................................................10
Set alarm levels (control unit without display)........................................................11
Set rising/falling alarms...........................................................................................11
Set latching/non-latching alarm relay mode............................................................12
Calibration................................................................................................................12
Zero adjustment ...................................................................................................12
Span adjustment...................................................................................................12
Pellistor input (Optional) .........................................................................................13
Setting Pellistor drive current ..............................................................................13
Pellistor zero calibration......................................................................................13
Pellistor span calibration (control unit with display)...........................................13
Pellistor span calibration (control unit without display)......................................14
Options board...........................................................................................................14
General specification ...................................................................................................14
Remote reset.............................................................................................................14
Repeat 4..20mA .......................................................................................................14
24 volt DC output.....................................................................................................15
Digital outputs..........................................................................................................15
Relay outputs ...........................................................................................................15
AC output.................................................................................................................15
Inhibit jumpers.........................................................................................................15
Servicing......................................................................................................................16
Spare parts................................................................................................................16
Measuring ranges.....................................................................................................16
Fault finding.............................................................................................................19
Issue 4 03/09/04
2 of 29

Dräger PEX 3000 Specifications

General

Brand	Dräger
Model	PEX 3000
Category	Transmitter
Language	English