Dräger REGARD-1 - Default Chapter; Table of Contents

Contents
Issue 5 - June 2005 Page 3 of 64 Pages
Contents
For your safety ..............................................................................................................7
Intended use ..................................................................................................................9
CE marking and ATEX approval ..............................................................................................10
Other tests and approvals .........................................................................................................10
Special conditions for safe use according to EC type examination certificate BVS
03 ATEX G 011 X .................................................................................................11
Description................................................................................................................... 12
Main circuit board........................................................................................................................13
Field device connecting terminals.....................................................................................................14
24 V battery terminals.........................................................................................................................15
Maintenance inhibit jumper................................................................................................................15
Fuses.....................................................................................................................................................16
Display board...............................................................................................................................16
Display of measuring range, gas and unit.......................................................................................18
Pellistor board......................................................................................................................................18
Options circuit board ..................................................................................................................19
Installation ...................................................................................................................21
Installation environment.............................................................................................................21
Mounting points...........................................................................................................................21
AC supply.....................................................................................................................................22
Connecting transmitters and measuring heads .....................................................................23
Two-wire 4-20 mA transmitter ...........................................................................................................23
Three-wire 4-20 mA transmitter ........................................................................................................23