1. Automatic wind speed adjustment function of high and low temperature test chamber:
a. When the equipment is heating up, the circulating fan runs at high speed, accelerates air convection in the working chamber, shortens the heating time, and improves work efficiency;
b. When the temperature in the working chamber is close to the control temperature, the meter automatically adjusts the circulating fan from high-speed operation to low-speed operation, so that the air in the working chamber is convectively convected, and the life of the circulating fan is effectively extended;
c. If you do not need to use the automatic wind speed adjustment function, you can adjust the high and low speed control parameters to 999.9 according to the control parameter adjustment method, and the circulation fan will always be in the high speed running state.
2. Self-tuning function of high and low temperature test chamber: If there is a large temperature overshoot or large temperature fluctuation during temperature control, please start the auto-tuning function as follows:
a. Turn off the power switch and open the door to allow the device to naturally cool to ambient temperature;
b. Close the door, open the power switch, set the temperature to the usual temperature value;
c. According to the control parameter adjustment method, the self-tuning parameter is adjusted to 1;
d. Under normal working condition, press and hold the down button for 5 seconds to enter the auto-tuning state. At this time, the PV display shows ATU and flashes;
e. After the self-tuning is finished, the meter automatically returns to normal working condition.
f. In the auto-tuning state, pressing any key is invalid.
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