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When a fault occurs, it is often difficult for the user to start, so that the user can quickly determine the fault and solve it by himself.
Below, Shanghai Huanqi Test Equipment Factory introduces six major fault repair and repair solutions for constant temperature and humidity test chambers.
1. When the temperature and humidity controller shows abnormal humidity
Checking steps:
1. Please check the under-water over-temperature protector of the control room, whether it is set at 150 °C;
2, please check the machine room, the pipeline is too dirty, causing the water flow is not smooth;
3. Please check if there is water in the water tank. If it is not water, check whether there is water in the tank.
4. Please check if the solid state relay in the humidity part is burnt out. If the heater is not burned, please use the three-meter electric meter AC voltage file, the voltage gear position is opened to 600 volts, and the red and black rods are respectively marked with the line number. The solid state relay of h is on both sides of the AC, and the humidity setting value of the humidity part is set to 0%. At this time, the indicator of the solid state relay of the humidity part will not light up, if the measured voltage value does not change, maintain Below 10v, the solid state relay burns out and presents a short circuit condition. Or set the humidity part setting to 0% first, and then see if the water in the humidification tank in the machine room is boiling.
Solution:
1. If not, please turn the over-temperature over-temperature protector to the position of 150 °C;
2. Please turn off the main power supply behind the machine, then open the drain valve under the humidification bucket to the position parallel to the pipeline. When the water in the water tank is drained, use the wrench to open the humidification bucket. Internally, the scale is removed due to long-term humidity. Then, the silicone tube is removed and washed in the water. After the maintenance is completed, the removal is carried out in the opposite direction. After the device is finished, the drain valve below the humidification tank should be closed to the tube. The vertical position of the road, and then turn on the main power supply behind the machine;
3, the water tank is not water, please add water to the water tank, you can solve. If there is no water in the water tank, there is water in the water tank.
, the water motor is broken for the water tank, please inform Shanghai Husheng constant temperature and humidity maintenance customer service part of the door for maintenance;
4. Please replace the solid state relay of the humidity part (the solid state relay marked with h as the line number), or notify the maintenance personnel of Shanghai Huanzheng Test Equipment Factory to come to the door for maintenance.
What should I do in the case of constant temperature and humidity chamber maintenance?
What should be done in the various situations of constant temperature and humidity chamber maintenance? Because the high-precision instruments such as constant temperature and humidity chambers are relatively large in size, moving or moving are unfavorable and the circuit is complicated.