Watlow Series 922 Retrofit - Manual (Page 75)

How To Use The Alarms, Chapter 7
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WATLOW Series 922 User's Manual
Alarms
Clearing An Alarm Message
You can clear a latched alarm when the ACTUAL display value returns to
within the operating band. You do not need to clear, indeed, you cannot clear,
a non-latching alarm. A non-latching alarm clears itself as soon as the AC-
TUAL display value returns to within the operating band. There is a 3
°
F
switching differential.
An Alarm And The State Of The Alarm Relay
Simply stated, a flashing alarm on the 922 alphanumeric display indicates the
state of the alarm relay contacts. A flashing alarm means that when an alarm
condition is present (ACTUAL beyond an alarm limit), then the alarm relay is
de-energized.