Chapter 4: Alarm Management
4-6
CMP4030 User Guide
November 2002
Alarm Indicators
An Alarm indicator notifies the user that a problem exists.
Two standard Alarm indicators are built into every Conviron growth chamber. In
addition to these, there are optional Alarms, which can be built into the chamber.
Standard Alarm Indicators
•
An Alarm button
will flash on the Status
toolbar of the controller when there is an active,
unacknowledged Alarm. The button will continue
to flash until the Alarm is acknowledged.
•
A buzzer will sound as the audible equivalent of
the flashing Alarm on the CMP4030 controller or
as an indication that the ITSO (independent
temperature shut-off) has shut off the chamber.
For more information on the ITSO, refer to page 8
of this chapter.
Optional Alarm Indicators
•
An external Alarm Indicator lamp, which will light
up when an Alarm is active.
•
A Chamber Alarm Contact (CAC) relay. The CAC
is connected to another device or system selected
by the user which will indicate an active Alarm.
In most cases, the CAC is connected to an
existing internal building security system or an
autodialer that will dial a pre-programmed
number and leave a message to alert the
operator that an Alarm exists.
