一、产品简介：
纸面石膏板材受潮挠度试验箱是**检测仪器，按照国家对石膏板试样的标准养护要求而设计制造的。产品符合JC/T799-2007标准设制的采用智能型数字仪表控制保证温度在32℃，相对湿度90%，是石膏检测行业试验单位的仪器。
Product introduction:
The paper surface gypsum board moisture deflection test box is a testing instrument designed and manufactured in accordance with the state's standard maintenance requirements for gypsum board samples. The product complies with the JC / T799-2007 standard and is equipped with intelligent digital instrument control to ensure that the temperature is 32 ° C and the relative humidity is 90%. It is an instrument for the test unit of the gypsum inspection industry.
二、技术参数：
♦控温范围：32±2℃
♦控制精度：±1℃
♦控湿范围：90%±3
♦电源：220V-50HZ
♦电热器：2000W
♦制冷剂：氟里昂12
♦压缩机功率：650W
♦加湿功率：90W
♦重量：约280Kg
♦容积：500*250*9或600*300*11（mm）的3组。
Second, the technical parameters
♦ Temperature control range: 32 ± 2 ℃
♦ Control accuracy: ± 1 ℃
♦ Humidity control range: 90% ± 3
♦ Power supply: 220V-50HZ
♦ Electric heater: 2000W
♦ Refrigerant: Freon 12
♦ Compressor power: 650W
♦ Humidification power: 90W
♦ Weight: about 280Kg
♦ Volume: 3 groups of 500 * 250 * 9 or 600 * 300 * 11 (mm).
三、产品结构：
♦外壳为钢板，内箱体为不锈钢板加工而成，保温层为泡沫塑料，体轻耐用，防腐，箱门采用磁胶条封闭，具有造型美观、控温精度高等一系列优点。
♦配备密闭式制冷机组，运行平稳、噪音小。
♦加热器采用不锈钢管加工而成，防锈防腐，延长了使用寿命。
♦用数字式控温仪控制冷却系统，以达到自控目的。
♦加湿系统采用超声波加湿器加湿，选用专用温度控制仪控制箱内温度。
Third, the product structure
♦ The outer shell is made of steel plate, and the inner box is made of stainless steel. The thermal insulation layer is foam plastic, which is light and durable, and anti-corrosive.
♦ Equipped with a closed refrigeration unit, which runs smoothly and has low noise.
♦ The heater is made of stainless steel tube, which prevents rust and corrosion and prolongs the service life.
♦ Control the cooling system with digital temperature controller to achieve self-control purpose.
♦ Humidification system uses ultrasonic humidifier for humidification, and a special temperature controller is used to control the temperature in the box.
四、工作原理：
♦由加热系统和制冷系统产生升温和降温，用控制仪进行调控。
♦当温度低于(箱内温度)32℃时，控温仪继电器开始工作，箱内温度32℃时，电热器停止升温，保持箱内32℃恒温，当箱内温度高于32℃时，制冷系统开始工作，箱内温度低于32℃时，制冷系统停止工作，保持箱内32℃±1℃，这样反复连续工作，达到水泥试体养护工作。
♦恒湿控制采用超声波加湿加湿，控湿仪控制，当箱内湿度达不到所需湿度时，加湿器自动向箱内加湿，达到自动停止，以保箱内湿度恒定在90%。
Fourth, the working principle
♦ The heating and cooling systems generate heating and cooling, which are controlled by a controller.
♦ When the temperature is lower than (inside the box) 32 ° C, the temperature controller relay starts to work. When the temperature inside the box is 32 ° C, the electric heater stops heating up and keeps the constant temperature in the box at 32 ° C. The refrigeration system starts to work. When the temperature inside the box is lower than 32 ° C, the refrigeration system stops working and keeps the temperature in the box at 32 ° C ± 1 ° C. This way, the continuous work is repeated to achieve the cement specimen maintenance.
♦ Constant humidity control adopts ultrasonic humidification and humidification, controlled by a humidity controller. When the humidity in the box does not reach the required humidity, the humidifier automatically humidifies the box and stops automatically to ensure that the humidity in the box is constant at 90%.
