Minco CT124, Instruction Manual, Page: 16 / 26

PROGRAMMING
Input Zones:
Each step is repeated for each temperature input zone.
Code Choices Description
Sc YES or no Scan: Select if the indicated zone is to be scanned or locked
out.
r or A YES or no Relay or Alarm: For each scanned zone, select whether the
indicated relay or alarm will respond to that zone.
Calibration:
CAL YES or no
Press , unless you want to recalibrate. Calibration
instructions are on page 20.
SAMPLE WORKSHEET DESCRIPTIONS
On the following pages are three sample CT124 Setup Worksheets. These will demonstrate the types of
functions the CT124 can perform and how to code them into the worksheet.
Worksheet 1:
1. Monitor a transformer with three RTD’s in the phase windings.
2. Relay 1 is connected to cooling fans and trips at 110°C.
3. Relay 2 is connected to an external alarm, and trips at 140°C. The built-in alarm also goes off.
4. Relay 3 shuts the transformer down at 155°C.
5. The override button manually turns on the fans.
6. The silence button turns off both the internal and external alarms.
Worksheet 2:
1. Monitor a motor with three RTD’s in the stator windings and two in the bearings.
2. If the stators reach 140°C, sound the alarm. Trip relay 2 to shut the motor down if they reach
155°C.
3. Sound the alarm if the bearings reach 100°C and trip relay 4 to shut the motor down if they reach
110°C.
Worksheet 3:
1. Monitor seven pipes and room air temperature in a utility room.
2. Relay 1 acts as an on-off controller to run an auxiliary heater maintaining pipe temperature around
38°F.
3. Sound the alarm as a frost warning if any of the pipes drops below 35°F.
Minco Products, Inc. CT124 Instruction Manual
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