OPERATION
TRIP TEMPERATURES
The CT124’s four relays and single audible alarm may be programmed to trip on either overtemperature
or undertemperature conditions.
To view trip temperatures:
Press
. The red light at the upper left of the button comes on.
Press
or
to cycle through the relays and alarm. The specific relay or alarm light will blink
to show which trip temperature is displayed. All zones tied to that relay will also light.
example:
with relay 3 blinking indicates relay 3 will trip when any zone it monitors
goes over 70°C.
with the red alarm light on indicates the audible alarm will sound when
any zone it monitors drops under 0°C.
TEST FUNCTION
The test button is used to check input, output, and display operation. It is also used to restore operation
of inputs which had faulty wiring that has now been corrected. See Troubleshooting on page 18.
Test Sequence:
1.
When the test button is first pressed, all the display lamps will light and the alarm will sound for
a couple seconds.
2.
The inputs are automatically tested next.
The display will read
,
,
, or
for zone 1.
To view the status of other inputs/zones, press
or
.
3.
If programmed, pushing the test button again will trip specified output relays to test remote alarms
or annunciators. Otherwise, it will return the CT124 to normal operation.
Pushing test again will return the CT124 to normal operation. If you forget to push test, the
CT124 will automatically resume normal operation in about 60 seconds.
SILENCE FUNCTION
If the alarm is sounding, push the SILENCE button to quiet the alarm. The alarm may sound again later
if the alarm condition still exists after Time of Silence has expired (see the CT124 Setup Worksheet). Any
new alarm conditions will override the silence function.
Depending on your application, pushing
SILENCE may also turn off selected output relays to quiet remote alarms or turn off annunciators.
OVERRIDE FUNCTION
Depending upon your application, this button can be used to force any output relay(s) either on or off,
including unused relays. Refer to the Setup Worksheet filled out for your application.
Minco Products, Inc.
CT124 Instruction Manual
11
Summary of Contents for CT124
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