Operation instruction:

1.The way to adjust temperature setting value:
When the controller under normal working status, press“set" key to display the current
temperature setting value, press the▲key or▼key to increase or decrease the
temperature setting value, if no key operation within 4 seconds, system will save the modified
parameter value and back to normal working status.
Note:LED displays“Er”if there is an error during the memory process, and system back to
normal display status after 3 seconds.
2.The way to modify the parameter setting value:
Under controller normal working status, press and hold“set" key for more than 4 seconds to
enter into parameter modifying mode, and LED displays the first parameter item code:“HC”.
Pressing▲key or▼key can choose the desiring parameter code, then press“set" key to
confirm the desired parameter item, by pressing both“set" and▲key or▼key, LED
accordingly displays the increase or decrease the parameter value. If no key operation within
4 seconds, system will save the modified parameter value and back to normal display status.
Note:LED displays“Er”if there is an error during the data memory process, and system
back to normal display status after 3 seconds.
3.The way to restore the system data:
After electrified, controller checks the parameter setting. LED displays“Er”when error exits,
then pressing any key will restore the default parameter setting, and work normally.It is
advised to reset the parameter under this situation.
4.Operating chart:

Control output:

Relay connects or disconnects when :
●When working mode is set as“Refrigerating", the relay connects if the measuring
temperature is above or equal to the setting temp. value plus the difference value; and relay
disconnects when measuring temp. value is below or equal to the setting temp. value.
●When working mode is set as“Heating' , the relay will connect if the measuring temp. value is
below or equal to the setting temp. value; the relay will disconnect when the measuring
temperature is above or equal to the setting temp. value plus the difference value.
●LED displays“HH”when temperature is between +99C ~ + 120C; LED displays“EE”
and system close the output when sensor error. The controller can restart up or close only
when the control output delay time is running out.

Safety rule:

★Danger:
Please strictly distinguish the connections of relay, sensor and power. Make sure the relay
is not overload.
All the wire connection must be operated under the power off status.
★Warning :
Prohibit to use the controller under the circumstances such as :over moisture, over high
temperature, strong electromagnetic interference, strong corrosion.
★Notice:
Make sure the voltage confirm to the marking on the machine and the power supply steady.
It is advised to keep proper distance between sensor leads and power supply wire to avoid
possible interference.