Operation
46 UDC2300 Universal Digital Controller User Manual 4/00
4.6 Timer
Introduction
The Timer provides a configurable Time-out period of from 0 to 99 hours:59 minutes or
0 to 99 minutes:99 seconds.
Timer “Start” is selectable as either the RUN/HOLD key or Alarm 2.
The Timer display can be either “Time Remaining” or “Elapsed Time”.
Configuration check
Make sure:
• TIMER is enabled
• A TIMEOUT period has been selected (in hours and minutes or minutes and
seconds)
• A TIMER FUNCTION START has been selected (KEY or AL2)
• A TIMER display has been selected (Time remaining or Elapsed time)
• A timer increment selected
• Timer reset selected
Refer to Subsection 3.3 for details.
Viewing Times
The times are viewed on the lower display as follows:
TIME REMAINING will show as a decreasing Hrs:Min value (HH:MM) or Min:Sec
value (MM:SS) plus a counterclockwise rotating clock face.
ELAPSED TIME will show as an increasing Hrs:Min value(HH:MM) or Min:Sec
value (MM:SS) plus a clockwise rotating clock face.
Operation
When the Timer is enabled (RUN/HOLD key or ALARM 2), it has exclusive
control of Alarm 1 relay.
At “TIME-OUT:
• Alarm 1 is active
• The clock character has stopped moving
• The Time display shows either 00:00 or the time-out period depending on
the configuration selection
• The Timer is ready to be reset.
At “RESET”:
• Alarm 1 relay is inactive
• The time display shows the time-out period
• The time-out period can be changed at this time using the ▲ or ▼ keys.
• The Timer is ready to be activated.
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