PD138 Minimux
®
II Temp & Process Scanner
Instruction Manual
27
Alarm Indication
The PD138 indicates alarms in 3 ways:
1) A normally green LED turns to red and flashes
2) An internal horn sounds
3) An alarm relay transfers.
The way red LEDs behave during an alarm depends on whether the
PD138 was programmed to respond to alarms via Sequence A or
Sequence F2A. Both of these sequences handle both momentary and
maintained alarms; Sequence F2A also indicates which group of alarms
occurred first.
www.
.com
1.800.561.8187
