Dwyer DPM - Manual (Page 22)

Particulate Monitoring Systems
Installation & Operating Manual
Document No. 210-1003-M Page 15 ©2007
Fail-safe
Relay 1
No/Yes When set to “Yes”, inverts the alarm relay
logic. Relay is ON when NO alarm condition
exists and is OFF when there IS an alarm
condition. Relay is OFF when power is
removed from the control unit.
Fail-safe
Relay 2
No/Yes When set to “Yes”, inverts the alarm relay
logic. Relay is ON when NO alarm condition
exists and is OFF when there IS an alarm
condition. Relay is OFF when power is
removed from the control unit.
Process
Run
Relay
Enable
No/Yes When set to “Yes”, enables use of the
process run relay input channel. When set
to “No”, disables use of this input. Refer to
Automated Self Checks section of the
manual for details on use of this relay input.
* Perform
Zero
Check
No/Yes When set to “Yes”, triggers an automatic
zero check. Refer to Automatic Self Checks
section of manual for full details.
* Perform
Span
Check
No/Yes When set to “Yes”, triggers an automatic
span check. Refer to Automatic Self Checks
section of manual for full details.