Dräger REGARD - Alarm and Range Configuration

REGARD 8-Input 4-20 Module & 8-Channel Display Card (ATEX Version)
Issue 2. October 2011
24
Set alarm trip levels
Commands 11–1 and 11–2 set alarm trip levels for A1 and A2 respectively. These
commands are identical in operation, only 11–1 is detailed here.
PRESS DISPLAY
• Select command 11–1
  R
A1 TRIP
Display shows current trip level of A1 alarm for head 1:
h1:20
• Select head to change. Current setting shown.
 
h2:50
• Select trip level for head, e.g. 25
 
h2:25
• Select next head to change. Current setting shown.
 
h3:20
Repeat for other heads
• Confirm selection and exit command
R
11–1
Alarm trip levels can be set from 5% to 100% of FSD.
Set rising or falling alarms
Commands 11–4 and 11–5 set the mode of operation of the A1 and A2 relays.
A1 and A2 alarms can be set to trip with either rising or falling gas levels.
The operation of these commands is identical so only command 11–4 is detailed here.
PRESS DISPLAY
• Select command 11–4
  R
A1 MODE
Display shows current mode of A1 (A2) for head 1:
h1:RISE
• Select head to change. Current setting shown.
 
h2:RISE
Select RISE for rising alarm
Select FALL for falling alarm
• Select next head to change. Current setting shown.
 
h3:RISE
Repeat for other heads
• Confirm selection and exit command
R
11–4