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The low temperature cold and hot shock box is used by modern enterprises for the safety performance test of products to provide reliability tests, product screening tests, etc.
, and various problems will be encountered during the test process
.
Today, let's briefly talk about one of them, over-temperature alarm
.
How do we deal with this situation when we find it? Next, Liuqin Technology will tell you about the solution
.
1.
Check whether the circulation motor in the high and low temperature cold and heat shock box is damaged and not running
.
2.
Check the over-temperature protector (color knob, which is marked with the temperature value set at 150C
.
3.
Check whether the solid-state relay in the temperature part is burnt and short-circuited.
If the heater is not burned, use the three-meter AC voltage gear voltage gear Turn on the position of 600 volts, place the red and black rods on the AC side of the solid-state relay with the line number marked T, and set the temperature setting value of the temperature part to 0°C.
At this time, the indication of the solid-state relay in the temperature part is The light will not light up.
If the measured voltage value does not change and remains below 1 OV, it means that the solid state relay is burned out and is in a short-circuit state
.
Therefore, the solution to the over-temperature alarm of the high and low temperature cold and heat shock box is: (1) notify Liuqin Technology The customer service maintenance department will replace the circulating motor
.
(2) Turn the over-temperature protector to the position of 150°C or the position where the operating temperature is increased by 30°C
.
(3) Replace the solid state relay of the temperature part (the one with the line number marked T).
A solid state relay) or notify the after-sales service for repairs
.
, and various problems will be encountered during the test process
.
Today, let's briefly talk about one of them, over-temperature alarm
.
How do we deal with this situation when we find it? Next, Liuqin Technology will tell you about the solution
.
1.
Check whether the circulation motor in the high and low temperature cold and heat shock box is damaged and not running
.
2.
Check the over-temperature protector (color knob, which is marked with the temperature value set at 150C
.
3.
Check whether the solid-state relay in the temperature part is burnt and short-circuited.
If the heater is not burned, use the three-meter AC voltage gear voltage gear Turn on the position of 600 volts, place the red and black rods on the AC side of the solid-state relay with the line number marked T, and set the temperature setting value of the temperature part to 0°C.
At this time, the indication of the solid-state relay in the temperature part is The light will not light up.
If the measured voltage value does not change and remains below 1 OV, it means that the solid state relay is burned out and is in a short-circuit state
.
Therefore, the solution to the over-temperature alarm of the high and low temperature cold and heat shock box is: (1) notify Liuqin Technology The customer service maintenance department will replace the circulating motor
.
(2) Turn the over-temperature protector to the position of 150°C or the position where the operating temperature is increased by 30°C
.
(3) Replace the solid state relay of the temperature part (the one with the line number marked T).
A solid state relay) or notify the after-sales service for repairs
.
