DW-40 low temperature test chamber low temperature freezer wholesale price

Type low temperature test chamber low temperature freezer wholesale price
This product uses a stainless steel inner tank, the box body is made of polyurethane foam as a whole, and uses imported refrigeration units. This product has strong anti-rust and anti-corrosion capabilities, and has the advantages of stable performance, high reliability, good thermal insulation performance, and fast cooling speed. This product is widely used in high and low temperature experiments in building materials, medicine, scientific research and other departments.
1. Technical indicators of test chamber
. Control temperature: normal temperature ~ ℃ . Compressor power:
. Uniformity: ℃ . Heating power:
. Refrigerant: Internal dimensions:
. Adding amount: .~Dimensions:
.Voltage% .Using ambient temperature: ℃
2. Instructions for use:
.The box should be placed in a ventilated, dry, Use in flat, non-corrosive media environment.
.The instrument should be equipped with a dedicated power supply. If the voltage is unstable, a high-power voltage stabilizer must be installed.
After the box is placed horizontally, it needs to be inactive for an hour and then powered on. Turn on the power switch and the compressor will start after a delay of ~ minutes. When restarting after a power outage, the delayer will automatically delay for minutes to ensure the normal operation of the compressor.
.Set the control temperature (eg ℃) and wait until the temperature inside the box reaches the required level before placing frozen items. When placing the specimen, minimize the opening time to reduce temperature loss and avoid shortening the cooling time and affecting the quality of the experiment.
.This product has a delay function. When the temperature drops sharply when the door is opened or the ambient temperature exceeds ℃, which affects the heat preservation time in the box for three minutes, the instrument displays cooling but the compressor is controlled by a delay device and does not work. Wait for more than three minutes. After the delay timer automatically resets, the compressor starts working.
. When the instrument is used for a long time, it must be defrosted regularly and the freezer must not freeze to avoid affecting the cooling effect. Defrost method: Turn off the power, open the door, wait for the ice in the box to melt, wipe the walls of the freezer with a dry towel, and then turn on the power again.
4. Precautions for the test chamber
. It is strictly forbidden to tilt the instrument during transportation. The wiring should be according to the left zero right phase and the effective grounding and leakage protector should be connected. When the power supply voltage is unstable, please use a voltage stabilizer. power supply.
.When using, you must wait until the temperature inside the box reaches the control temperature before placing the test piece. The door opening time must be shortened to reduce temperature loss.
.When setting the temperature value, it must be adjusted in the shutdown state. It must not be adjusted at will when the machine is turned on to avoid damaging the instrument.
.When not in use, the power supply should be cut off and the freezer compartment should be wiped clean.
5. Common faults and troubleshooting methods
. The meter does not display or the display does not work:
: Check the fuse, plug and socket.
Check the power switch and instrument output or input, and whether the plug is tightly inserted.
: Whether the contactor is burned out, replace the contactor with the same model.
, No cooling:
: The compressor is working but not cooling, indicating a refrigerant leak. Check the leak, and refill the refrigerant after welding repairs.
If the compressor does not work, connect the compressor directly to the power supply. If it does not work, it means that the thermal protector, capacitor, and compressor are burned out and must be replaced.
Test box packing list
Main console
Shelves
Instructions
Certificate of conformity