Soil and earth composite material temperature regulation and humidity control box troubleshooting method - Database & Sql Blog Articles

Adjustable capacitor Murata genuine original

Photocoupler

Instructions for use

1. The instrument should be placed in a ventilated and dry place at an ambient temperature of 2-38.

°C

Relative humidity is not more than 85

%

Indoor use without strong vibration and strong electromagnetic fields.

2. After the instrument is placed in a stable position, check whether the door switch is flexible and whether the electrical, cooling and other components are damaged.

3. Open the side door and fill the humidifier tank with distilled water or purified water. Fill the plastic water tank at the temperature sensor with water and soak the gauze into the water.

4. See the power plug inserted into the 220V socket with good grounding. Turn on the power switch and the dehumidification switch, and the instrument will automatically enter the working state.

5, the factory has been programmed into the standard setting program, the temperature control value is 20

°C±

1

°C

, humidity control value is 65

%±

2

%

. If you need to change the control value data, you can modify the parameters according to the temperature controller instructions.

working principle

This instrument uses precision platinum resistance pt100 as temperature sensing element

The high-performance (A/D) converter converts the dry and wet equivalent voltage signals transmitted by the multiplexer into corresponding digital signals, which are processed and displayed and controlled by a single-chip microprocessor. When the temperature is lower than the lower limit of the set temperature set value, the meter outputs a heating control signal; when the temperature is higher than the upper limit of the set temperature control value, the meter outputs a cooling control signal; when the temperature enters the window area of ​​the set control value ( When the CER is set to the area, the meter stops heating or cooling and enters a constant temperature state. When the humidity is lower than the lower limit of the set control value, the meter outputs a humidification signal; when the temperature is higher than the upper limit of the set humidity control value, the humidification stops.

General troubleshooting

1. The chiller does not work: Check the power switch and the fuse is damaged.

2, not cooling: check whether the meter shows the cooling state, check the compressor overload protector, the starter is damaged, the compressor can run normally without cooling, it may be refrigerant leakage.

3. The humidifier is not humidified: check whether the small fan inside the humidifier works, whether the water level in the humidifier base is too high, whether the humidifier is tilted too much, and whether the atomizing transducer is clean.

4. Occasionally, it is affected by external electric signals. The digital display of the instrument is out of control. Just turn off the power switch or unplug the power plug, then turn it back on, it will work normally.

Precautions

1. If the power supply voltage fluctuates beyond the specified range, the power stabilizer must be installed, otherwise the meter and the refrigerator will be damaged.

2, the power supply grounding must be reliable, poor grounding will bring danger to your personal and safety.

3. Check the humidifier frequently. Do not cut off the water in the wet and dry box. The gauze in the box should be replaced every month.

4. Non-related personnel cannot change the control program data without authorization, so as to avoid the instrument being out of control and damaging the instrument.