YH-40B Constant Temperature and Humidity Curing Box (Glass Door)If not used for a long time, please remove the battery inside the digital meter to avoid damage to electronic components.YH-40B Constant Temperature and Humidity Curing Box (Glass Door)Please add lubricating oil to the activity section to ensure sensitive transmission. (Lubricating oil can be obtained by mixing butter with a small amount of engine oil.). The company, with its strong technical foundation, strengthens independent development while actively adopting advanced technology standards at home and abroad, seeking to promote cooperation and complementarity with colleges, universities, and research institutions to achieve a high starting point in new product development and accelerate product upgrading and replacement. Our company sells paint film adhesion testers, paint film checkers, pencil hardness testers, paint film thickness gauges, etc.

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usage method:
The box is in place, leveled, grounded, and left to stand for 24 hours. Clean water is added to the water tank until the water level exceeds the heating tube.
Open the box door and take out the humidifier. Open the side door, place the humidifier on the upper tray, remove the transparent water tank, turn it counterclockwise, unscrew the water tank cover, fill it with clean water (distilled water is suitable), screw on the water tank cover after adding water, put it back into the humidifier body, then press the humidifier nozzle on, and insert the humidifier plug into the socket inside the side door. Turn on the power switch and adjust the spray knob to the zui large position. The temperature and humidity of the temperature controller in the maintenance box have been adjusted before leaving the factory.
Connect the power supply to start the instrument. When the temperature and humidity inside the box reach the set value, place the test piece. Heating and cooling are strictly prohibited from being carried out simultaneously.

brief introduction：
This box is developed, designed, and manufactured according to the national GB1345-99 "Cement Standard Consistency Water Consumption Setting Time Stability Test Method" and technical data provided by the National Building Materials Research Institute and relevant departments. It is suitable for use in large, medium, and small cement plants, construction and engineering departments for concrete and cement specimen setting and curing. In terms of the structure of the original product, a series of improvements have been made. The box door is sealed with magnetic tape, and the insulation layer is made of insulation cotton with good insulation effect. A refrigeration unit has been added inside, which runs smoothly and has low noise. The heater is made of copper pipes and is rust proof and corrosion-resistant. The humidification device has a series of advantages such as beautiful appearance, high precision in temperature control and humidity control. A user troubleshooting and maintenance table has been added in the user manual as a basis for users to provide records to the factory during maintenance, so that our maintenance box can be improved in the production process and the product can be durable to meet the user's requirements.

Technical parameters:
△ Humidity control temperature: RH90% or above.
△ Control temperature: 20 ℃± 1 ℃.
△ Power supply voltage: 220V 50HZ.
Heating power: 1000W.
△ Cooling power: 145W.
△ Humidification power: 45W.
△ Moisturizing capacity: 400 milliliters per hour.
Volume of humidifier: 5.5L.
△ Box space: 40B type can hold 15 sets of 150 ³ concrete test blocks.

As mentioned above, we believe that this instrument is ideal, with stable data, less pollution and waste, low price, and easy operation.