How to do the daily maintenance of the constant temperature and humidity test chamber?

Clause. 1. The test cloth should be replaced regularly, and the new test cloth should be cleaned first, and the temperature measuring body should be wiped with a cleaning cloth when replacing.

Clause. 2. The water of the water accumulation cylinder should not overflow or be too low to affect the accuracy of the wet bulb, and the water level of six points full can be.

Clause. 3. Maintain the condenser regularly every month and use high-pressure air to spray dust.

Clause. 4. When the machine is running, the maximum value of over-temperature protection should be set to 20 30.

Clause. 5. You can wipe the outside of the box with soapy water, clean it more than once a year, clean the power distribution room at least once a year, and use a vacuum cleaner to suck off the indoor dust.

Clause. 6. Ensure that the water quality in the humidifier is clean, and the water storage in the humidifier should be replaced once a month.

Evaporative dehumidifier cleaning: Because the cleanliness level of different samples is different, under the action of forced air circulation, a lot of dust and other small particles will be condensed on the evaporative dehumidifier of the constant temperature and humidity test chamber, so it needs to be cleaned regularly, and the cleaning cycle can be about three months, depending on the cleanliness of the equipment.

Cleaning of circulating fan blades and condenser fans: Similar to cleaning evaporators, because the cleanliness levels of the samples are different, under the action of forced air circulation, a lot of dust and other small particles will be condensed on the evaporator (dehumidifier), which should be cleaned regularly;

Waterway and humidifier cleaning: If the waterway of the constant temperature and humidity test chamber is not smooth, the scaling of the humidifier will easily lead to the dry burning of the humidifier and may damage the humidifier, so the waterway and humidifier must be cleaned regularly;

Note: After each test, set the temperature near the ambient temperature, work for about 30 minutes, then cut off the power supply of the equipment, and wipe the wall of the studio. Moreover, if the product is not used for a long time, the product should be energized regularly every half a month, and the power-on time should not be less than 1 hour to maintain the normal operation of the internal accessories of the equipment.

Everyone thinks that the maintenance of the constant temperature and humidity test chamber will be very troublesome, today I am here to tell you, it is not the case, the maintenance of the constant temperature and humidity test chamber is very simple, do not believe please see the following:

1.The shell of the constant temperature and humidity test chamber must be grounded, remember not to use the neutral wire or the middle wire as the ground wire, please confirm whether the voltage of the power supply is consistent with the product requirements before use.

2.When moving the constant temperature and humidity test chamber, the inclination angle of the chamber should not be greater than 45 degrees, and the equipment should be placed for 48 hours when it is turned on to avoid damage to the compressor in the equipment.

3.The constant temperature and humidity test chamber must be equipped with an independent power socket and confirm that it is well grounded.

4.The constant temperature and humidity test chamber is strictly forbidden to be used in places with high voltage, high current, strong magnetic field and corrosive gas, so as not to interfere with the damage to the equipment and cause danger, and the damage caused by this is not covered by the warranty.

5.The test sample should not be placed to overcrowd, and the air outlet of the equipment should be blocked to block the air circulation in the test chamber.

6.It is strictly forbidden to directly turn on or off the main air switch of the constant temperature and humidity test chamber to avoid damage to the equipment caused by direct power or power failure, this damage is not covered by the warranty, and the power must be turned off when the equipment is stopped in use.

7.If the working temperature of the constant temperature and humidity test chamber is lower than 10 degrees Celsius for a long time, the compressor needs to be maintained regularly so as not to affect the cooling effect of the equipment.

You may not know that it is exciting for the constant temperature and humidity test chamber. Regular maintenance is better than the effect of after-the-fact maintenance, so we should carry out periodic maintenance on some parts or components, and for some systems, it is more scientific and reasonable to adopt first-class maintenance measures.

Preventive maintenance measures for constant temperature and humidity test chamber: after use, rotate the switch button of the main power supply to the position of "0"; Regularly clean the inner wall, drainage pipe, water tank and anti-fouling screen of the constant temperature and humidity test chamber; The test water used in the constant temperature and humidity test chamber must be demineralized water; The sand belt on the sensor should be replaced frequently, and water should be added to the constant temperature and humidity test chamber regularly to ensure that the equipment has sufficient water source.

Constant temperature and humidity test chamber maintenance measures: regularly clean and inspect the sampling system and piping of the equipment. Check the suction and discharge pressure of the compressor as well as the equilibrium pressure; Comprehensive test machine:

Check the maximum cooling rate, heating rate and humidification rate of the constant temperature and humidity test chamber; And check the suction and exhaust temperature of the compressor, the temperature difference between the inlet and outlet water of the cooling water and the working current of the compressor.

The maintenance of a piece of equipment is very important, it is directly related to the service life of the equipment, so we must regularly maintain and maintain it when using the constant temperature and humidity test chamber.

The use of constant humidity box is very wide, many companies want to use it longer, so today the constant humidity box manufacturer Hantang Gaoqiang will tell you how to maintain it to use it longer.

1. Inspection and maintenance of constant humidity humidifier. The water storage in the humidifier should be replaced once a month to ensure that the water quality is clean, and the humidification water tray should be cleaned once a month to ensure a smooth flow of water.

2. Removal of dust from the condenser of the constant humidity box. The condenser should be maintained regularly and monthly, using a vacuum cleaner to suck up the dust attached to the condenser's heat dissipation mesh or using high-pressure air to spray the dust.

3. Maintenance of over-temperature protector of constant humidity chamber. When the constant humidity chamber is working, the maximum value of the over-temperature protection is increased by 20 30. When the temperature in the test chamber rises to the set point of over-temperature protection, the power supply of the heater will be stopped"overheat"If you work for a long time and are unattended, please be sure to check the over-temperature protector before working to see if it is set properly.

4. The constant humidity chamber is the replacement of the ball test cloth. When the surface of the test cloth is unclean or hardened, or after the temperature control, the test cloth must be replaced before continuing to do the temperature and humidity spherical control. The inspection cloth should be replaced once every three months, and the temperature measuring body should be scrubbed with a cleaning cloth when replacing, and the new inspection cloth should be cleaned first.

5. The constant humidity chamber is the inspection and adjustment of the ball water level. The water level of the water cylinder should not be too high, so that the water overflows the water cylinder or too low, so that the wet bulb test cloth does not absorb water normally, which affects the accuracy of the wet bulb, and the water level is about six points full. The adjustment of the water level of the water accumulation cylinder can adjust the concave and convex of the water accumulation box.

1. Maintenance of constant temperature and humidity box.

1.Check and adjust the wet bulb water level of the constant temperature and humidity test chamber.

The water level of the water cylinder should not be too high, so that the water overflows the water cylinder or is too low to make the wet bulb test cloth absorb water abnormally, which will affect the accuracy of the wet bulb water.

The number of digits should be about six points full. The adjustment of the water level of the water accumulation cylinder can adjust the height of the water accumulation box. Almost every two or three tests.

It is necessary to check it and add water.

2.Replacement of wet bulb test cloth in constant temperature and humidity test chamber.

When the surface of the test cloth is not clean or hardened, or after the temperature control is completed, the test cloth must be replaced before continuing to do the temperature and humidity sphericity control.

The test cloth should be replaced once every three months, and the temperature sensor should be wiped with a cleaning cloth when changing, and the test should be replaced with a new one.

The cloth should be washed first.

3.Constant temperature and humidity test chamber condenser dust removal.

The condenser should be maintained regularly and monthly, and the dust attached to the condenser's heat dissipation mesh should be sucked up by vacuum cleaner or high-pressure air should be used.

Spray dust.

Sorted out some old users' experience and suggestions on using constant temperature and humidity test chambers. Novices who want to buy a device in the near future should definitely take a look.

The constant temperature and humidity test chamber should be placed in a place with low humidity.

The constant temperature and humidity test chamber should be kept away from heat sources such as stoves and radiators. At the same time, direct sunlight should be avoided. This is conducive to the heat dissipation of the constant temperature and humidity test chamber.

The constant temperature and humidity test chamber should be placed in a stable place on the ground. Otherwise, the compressor will produce vibration when it starts, produce a lot of noise, and shorten the service life of the constant temperature and humidity test chamber for a long time.

The constant temperature and humidity test chamber should be placed in a well-ventilated place. The back of the test chamber should be greater than 60 cm from the wall and the top height should be greater than 60 cm. There should not be too much debris around.

When working in a constant temperature and humidity test chamber, the number of door openings should be minimized to reduce the overflow of cold air.

The constant temperature and humidity test chamber should be placed in a place with low humidity.

Constant temperature and humidity test chamber, especially on other electrical appliances, there shall be no heavy objects or excessive sundries.

The supply voltage fluctuates greatly. If the power is turned off repeatedly, the use of the constant temperature and humidity test chamber should be suspended to avoid damage to the compressor.

In order to ensure the service life of the constant temperature and humidity test chamber, the manufacturer of the constant temperature and humidity test chamber proposes to set up a hidden ear to be placed in the natural environment of 25 10 to carry the nucleus for application, which is due to a variety of reasons, and today I will briefly describe one of the obvious reasons for you.

R23 refrigerant is a fluid density vapor, and the constant temperature and humidity test chamber will change with the change of working temperature, if the working temperature is low and low, on the contrary, the working temperature is high and high. For example, when the operating temperature is 10 35 psi, the working pressure is around 110 180 psi when stationary.

When working, a working pressure indicator of around 170 290 psi means that everything is normal. If the working pressure exceeds 300psi, it means that the working temperature is too high, or the heat pipe heat dissipation characteristics of the equipment are not very good, and the working pressure is too high, the equipment will cause overpressure, an alarm appears, and the constant temperature and humidity test chamber will stop working, which will not only affect the actual effect of your experiment but also affect the equipment.

In fact, the provisions of the constant temperature and humidity test chamber on the place are not only limited to the working temperature, but also the customer should prepare the place in advance according to the instructions for use during installation, which is conducive to the subsequent use of the constant temperature and humidity test chamber.

Use in strict accordance with the operating procedures of the instrument, carefully check the buttons of each part before and after use, touch lightly, keep it clean, dehumidify with silicone, etc.