Manufacturer customized HWY-30 high and low temperature dual-use constant temperature water bath, low temperature circulating water bath, low temperature constant temperature water bath, Rongjida Instrument

Brief introduction

This water bath is suitable for the maintenance of various specimens, and is used as an instrument with a temperature control range below room temperature. It has the advantages of fast cooling speed, low noise, and high temperature control accuracy. Widely applicable, can be connected with needle penetration for various temperature tests. It is equipment for testing and experimentation units.

2、 Technical parameters

Equipment temperature control range: 3-60 ℃

Power supply voltage 220V ± 10V

Display accuracy: ± 0.1 ℃

◆ Water bath size: 460X320X300

Heating power: 2000w

◆ Cooling power: 280W

Total weight: 63kg

◆ Dimensions: 660mm x 650mm x 1050mm

3、 Installation instructions:

The equipment should be placed at room temperature of 10 ℃ to 30 ℃; The relative humidity should not exceed 80% indoors. There should be good ventilation indoors.

Be careful not to bump the box body and components when unpacking.

It is recommended to use an air switch with leakage protection for the power supply of this device,

This equipment should be placed on a flat surface, and it is required that all four feet at the bottom of the equipment should be in contact with the ground and apply even force.

4、 Debugging instructions:

After connecting the power, add water to the water tank and debug the equipment. The water level should not be lower than the grate in the water tank. (Note: Cannot turn on without adding water!)

After filling up with water, please check if there is any leakage in various parts of the equipment. If there is water leakage, please tighten the area

Bolt or notify our company

◆ Power on, press the power button in sequence=>cooling button=>water pump button. At this point, the water pump mixing device starts. However, pressure

The compressor will not start (note: the compressor is equipped with a delay protection device when it leaves the factory, which usually takes 5-8 minutes)

Start up)

The test temperatures are: 25 ℃, 15 ℃, and 5 ℃ in sequence. Starting from 25 ℃, when the temperature gauge shows that the temperature has reached

After 25 ℃, the heating system will automatically operate, while the cooling system will always operate, relying on the heating system to compensate for the cooling system

The reason why our company's technical department designed the circuit in this way is twofold: firstly, in order to better control the heat loss brought by the system

Temperature, secondly, to protect the compressor and extend its service life. At this point, the temperature of the water in the water bath will continue to rise

Reduce to approximately 3 to 5 ℃ below the set temperature, then gradually increase until reaching the set temperature control and maintaining a constant temperature.

The testing process at 15 ℃ and 5 ℃ is repeated in sequence.

After the test run is completed, drain the water from the water bath and wipe all parts clean for future use.

5、 Operation steps:

1. Arrange the prefabricated samples neatly on the pallets inside the workshop, fill the workshop with water, and make sure the water

Immerse the specimen and raise it about 30mm above the specimen. Then turn on the power and turn on the cooling mixer and water pump switches in sequence.

2. Set the desired temperature on the temperature control instrument. The setting method is as follows: Press the SET button and then release it to see the next message

The digital display tube in the designated display area is flashing. Press △ to increase, press V to decrease the set value, and after the setting is completed,

Press the SET key to return. The temperature control meter will enter the automatic control program.

3. When the temperature reaches the desired control temperature of the temperature controller, the temperature controller will automatically maintain a constant temperature. At this moment, the red light is on and

Stabilize the temperature of the water tank at this level and record the time.

4. The test piece can only be tested after the temperature inside the water tank remains constant for at least 30 minutes.

5. After the experiment is completed, turn the drain valve at the bottom of the water tank to drain the water from the tank, wipe off the surface moisture of the instrument, and remove the instrument

Place in a dry and ventilated area.

6、 Attention:

1. This product should have good grounding when used.

2. The distance between the back cover of the water bath and the wall should not be less than 50cm.

3. Drinking water with low mineral content should be added to the sink to prevent scaling in the water tank and circulation pipes.

4. The voltage used should be strictly controlled at 220V ± 10V.

5. Do not turn on or off the compressor during use. After use, turn off the water pump, refrigeration, and power switches in sequence.

6. After use, drain the water from the water bath and wipe all parts clean before use.

7. The compressor is prone to malfunction when not in use for a long time, so this equipment should be tested once a month

Perform a second trial run to prevent damage to the compressor.