Dräger REGARD - MAINTENANCE; Maintenance Schedule and Tests

REGARD 8-Input 4-20 Module & 8-Channel Display Card (ATEX Version)
Issue 2. October 2011
33
MAINTENANCE
Recommended maintenance intervals
EN 60079-29-2 and respective national regulations should be observed.
Transmitters should be checked and re-calibrated at the intervals specified in the
respective instruction manual.
Daily:
• Visual check for readiness for operation
At regular intervals:
• Inspection by trained personnel.
The inspection intervals in each individual case are subject to technical safety
considerations, engineering processes and the technical requirements for the
equipment. Every six months is recommended.
• Check connections from heads (transmitters) to signal inputs and between input module and
display card
• Test LEDs and alarm relays
• If connected, test remote reset
• Check communications between display card and module
Commands for system maintenance
Test LEDs and display
PRESS DISPLAY
• Select command 14–0
  R
LED TEST
All LEDs and display segments flash.
• Stop test
R
14–0
Test remote reset
PRESS DISPLAY
• Select command 14–1
  R
RMT TEST
Display shows status of remote reset input:
OPEN
OPEN : circuit open
CLOSED : circuit closed
• End test
R
14–1