Switch the modes between cool and heat;

Control temperature by setting the temperature setting value and the difference value;

Temperature calibration;

Refrigerating control output delay protection;

Alarm when temperature exceeds temperature limit or when sensor error.

 

Specification

Front panel size: 75x34.5(mm)

Mounting size: 71x29(mm)

Product size: 75x34.5x85(mm)

Sensor length: 1 meter (include the probe)

 

Technical Parameters

Temperature measuring range: -50~99 Celsius

Accuracy: 0.1 Celsius

Sensor error delay: 1 minute

Power supply: DC 12V, DC 24V, 110V/220V AC+10%, 50/60Hz

Power consumption: <3w

Sensor: NTC sensor(IPC)

Relay contact capacity: Cool (10A/220VAC); Heat (10A/220VAC)

Ambient temperature: 0-60 Celsius

Storage temperature: -30-75 Celsius

Relative humidity: 20-85%(No condensate)

 

Indicator light status instruction

Indicator light	Function
Cool indicator light	On:Refrigeration starts;Off:Refrigeration stops;Flash:compressor delay
Heat indicator light	On: heating starts;Off:heating stops
Set indicator light	On:parameter setting status

 

 

 

After the completion, press and release the power button to save the parameter modification and return to the normal temperature display state.

If there is no key operation within 0 seconds, the parameter modification will not be saved and return to the normal display state.

“Er” is displayed if an error occurs while saving the parameter, and returns to the normal display state after 3 seconds.

3.Repair system data

When the machine is powered on, first check whether the parameter setting is normal. If the check is wrong, it will display “ER”. Pressing any key at this time will restore the default parameter settings and work normally. It is recommended to reset the parameters at this time.

 

Operation instruction

Under controller normal working status, press and hold “ ” key for 3s can turn off the controller; Under controller “off” status, press and hold “ ” key for 3s can turn on the controller.

Under the controller normal working status, screen displays the current temperature value; also the controller can also switch the working mode between heating and cooling.

Controller starts refrigerating with cool indicator light on when the measuring temperature ≥ temperature set value + difference value, and the refrigerating relay is connected; The “Cool” indicator light flashes, it indicates the refrigerating equipment is under compressor delay protect status; when the measuring temperature ≤ temperature set value, the Cool indicator light on, and refrigerating relay disconnects.

System starts heating when the measuring temperature value ≤ the temperature set value-difference value, and the “Heat” indicator light on, and the heat relay connects; When the measuring temperature ≥ temperature set value, the “Heat” indicator light is off, and the heat relay disconnects.

Menu instruction

Code	Function	Set range	Default
F1	Temperature set value	-50~99°	10°
F2	Difference set value	1~10°	3°
F3	Compressor delay time	1~10 minutes	3 minutes
F4	Temperature calibration value	-10°~10°	0°
F5	Fahrenheit/Celsius switching	Set range	0/1

 

Error description

Alarm when sensor error: Controller activate the sensor error alarm mode when sensor open circuit or short circuit, all the running status is closed off with the buzzer alarms, and the nixie tube displays “EE”,Press any key can cancel alarm sound, system back to display the normal temperature when the error and the fault is cleared.

Alarm when the measuring temperature exceeds temperature measuring range:Controller activates the error alarm function when the measuring temperature exceeds the temperature measuring range, all the running status is closed off with the buzzer alarms, and the nixie tube displays “HH”,Press any key can cancel alarm sound, system back to display the normal temperature when the error and the fault is cleared.

Safety Regulations