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4.2 description of instrument keys：
Set set function key shift key ▼ decrease key ▲ increase key
4.3 setting of temperature parameters:
Press the setting function key "set" to enter the setting state of the temperature setting value.
At this time, the last value of the setting temperature "SV" on the display screen flashes. First
press the shift key, then press the plus or minus key to set the working temperature you need,
and then press the setting function key "set" once. At this time, the last value of the timed
shutdown time (min) "0000" on the upper right corner of the display screen flashes. If it is not
necessary to keep the default "0000" regularly, Press the setting function key "set" again to
exit the parameter setting and save the parameter setting value. At this time, the display "PV"
shows the temperature of the liquid medium in the current tank.
5. After the temperature parameter setting is completed, first open the "cycle" button on the
operation panel, and then open the "refrigeration" button (Note: when the working
temperature exceeds 40 ℃ , the compressor automatically enters the protection, and the
refrigeration does not start), and then the microcomputer enters the automatic control state.
6、 Description of correction between quantity temperature and actual temperature:
In the normal display state, long press the setting function key "set" for 3 seconds, the
password prompt "LC" is displayed in the upper row of the display window, and the password
value is displayed in the lower row. At this time, press the plus key "▲" to enter the password
"00000 3", then click the setting function key "set" to enter the internal parameter setting state,
and then click the setting function key "set" to select the parameters to be modified, Select the
indicator in the upper window to display the word "PB1". At this time, it is the temperature
correction interface. If the actual temperature is higher than the displayed temperature, press
the plus key "▲" to increase, press the minus key "▼" to decrease, and then long press the
setting function key "set" for 3 seconds. The parameter values can be automatically saved and
exit this state. When the measured value "PV" reaches the working temperature and stabilizes
for 15 minutes, the experiment or test can be carried out.
E. Precautions for use:
1. Liquid medium shall be added into the tank before use, and air opening is strictly
prohibited. (Note: the liquid shall not contain acid and alkali).
2. The power supply power shall be greater than the total power of the instrument, and the
power supply must have a good "grounding" device. The voltage used shall be subject to the
technical parameter table.
3. The instrument shall be placed in a ventilated and dry place, and the back and both sides
shall be 300mm away from the obstacles to maintain good heat dissipation.
After use, set all switches to off state, unplug the power plug, open the drain valve,
discharge the medium in the tank, and keep the tank dry and tidy.
F.Packing list
1 main energy 1set
2 cover plate 1piece
3 specification 1piece