SICK GMS840 - Page 4

CONTENTS
4
8018429/1DWP/V3-0/2022-06| SICKADDENDUM TO OPERATING INSTRUCTIONS | GMS840
Subject to change without notice
3.7 Intrinsically safe signal connections (option) .............................................. 20
3.7.1 Technical design........................................................................... 20
3.7.2 Installation information................................................................ 21
3.7.3 Limit values for intrinsically safe signal connections ................. 21
3.8 Closing the enclosure tight........................................................................... 21
4 Commissioning of GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
.22
5 Maintenance............................................................................................. 23
5.1 Safety information ........................................................................................ 23
5.2 Maintenance interval.................................................................................... 23
5.3 Maintenance work on the enclosure ........................................................... 23
5.4 Cleaning of the enclosure ............................................................................ 23
5.5 Leak tightness checks.................................................................................. 24
5.5.1 Checking the leak tightness of sample gas lines ...................... 24
5.5.2 Checking the leak tightness of purge gas paths......................... 24
6 Shutdown .................................................................................................. 25
6.1 Preparations for shutdown........................................................................... 25
6.2 Before shutdown........................................................................................... 25
6.3 Shutdown with GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
................. 25
6.3.1 Shipping for repair........................................................................ 25
7 Compliances and standards .................................................................. 26
8 Technical data.......................................................................................... 27
8.1 Dimensions, fitting position and connections ............................................. 27
8.1.1 Dimensions................................................................................... 27
8.1.2 Torques ......................................................................................... 28
8.1.3 Position of connections................................................................ 29
8.2 Enclosure specifications ............................................................................. 30
8.3 Ambient conditions....................................................................................... 30
8.4 Gas connections ........................................................................................... 30
8.5 Power connection ......................................................................................... 31
8.6 Electrical safety/ EMC .................................................................................. 32
8.7 Technical data for intrinsically safe signal connections ............................. 32
8.7.1 Limit values for intrinsically safe analog outputs ...................... 32
8.7.2 Limit values for intrinsically safe digital outputs ....................... 32