model 2704 controller installation and operation handbook - Soliton

2704 Controller Alarm Operation
7.5. HOW ALARMS ARE INDICATED
When an alarm occurs a message will appear on the display which will indicate the source
and the type of alarm. The format of this alarm message is:
Alarm source
Alarm message
:LP1
Full Scale Low
Press ª+° to Ack
alternates for an unacknowledged
alarm
Instruction
When the alarm has been acknowledged the message shown in the banner of the pop up
window above will now be shown in the Loop Display page.
The symbol will be shown steady in the top banner of any page if any alarm is still present.
If a relay has been connected to the output of the alarm, it will operate to allow an external
beacon or audible device to be activated. The relay will be de-activated when the alarm is
acknowledged.
7.5.1. Alarm Delay Time
A delay time can be set for each alarm between the occurrence of the alarm and the indication
of the alarm in the controller. This is useful to prevent spurious alarms from being indicated
in some noisy or rapidly changing processes.
To set delay time the controller must be placed in Configuration level. This is described in
the 2704 Engineering Handbook Part No HA026933.
If delay time has been configured for the alarm the user may be aware that the occurrence of
an alarm may not necessarily correspond with the display of the alarm
Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00 7-11