YG751D constant temperature and humidity Cabinet

Instrument usage

This constant temperature and humidity environment test cabinet can simulate various temperature and humidity environments, and is suitable for testing electronics, electrical appliances, food, automobiles, rubber, plastics, metals and other products, and meets GB/T 2423, GJB 150A1/4 in various harsh environments  The reliability and stability of the machine will provide you with a basis for predicting and improving product quality and reliability.

Applicable standards

GB 6529, ASTM D 1776, GB 11158, GB 10589-89, IEC 60068-2-2.1974, GJB 150.3, GJB 150.4, GJB 150.9 and other standards

Instrument appearance picture

【Heating system】

Continuous PID regulation, using AC contactors as heating actuators, safe and reliable, with a separate over temperature protection system.

【Air duct system】

To ensure a high uniformity index, the test box is equipped with an internal circulating air supply system; In the air duct interlayer at one end of the studio, devices such as heaters, refrigeration evaporators, and fan blades are distributed; Use a fan to circulate the air in the box. When the fan rotates at high speed, the air in the studio is sucked into the air duct from the bottom, heated and cooled, and blown out from above the air duct. The air exchanged with the test sample in the studio is then sucked into the air duct and circulated repeatedly to meet the temperature setting requirements.

【control system】

1. Temperature measurement: Pt100 platinum resistance.
2. Humidity measurement: Pt100 platinum resistance wet dry bulb method.
3. Control device: touch screen programmable temperature and humidity controller TEMI850; It can display the set parameters, time, heater, humidifier, and other functions, and has automatic test operation and PID parameter self-tuning functions; The automatic operation function of the refrigeration machine can be achieved by simply setting the temperature; The control system uses intelligent control software system with automatic combination of heating, humidification and other subsystems to ensure high-precision control throughout the entire temperature and humidity range, achieving the goal of energy conservation and consumption reduction; A comprehensive detection device can automatically display detailed faults and alarms, such as when the test box experiences abnormalities, the controller automatically displays the fault status.
4. Screen display: Set temperature and humidity; Measure the temperature and humidity.
5. Setting accuracy: 1 ℃.
6. Operation mode: Constant operation.
7. Other major low-voltage electrical components use well-known brand products, such as Schneider AC contactors, thermal overload relays, Omron small relay devices, Delixi circuit breakers, Wanfanyi water level float switches, etc.

【Standard configuration】

【Configuration Checklist】

name	brand	producing area
temperature controller	TEMI850	Korea
Electromagnetic contactor	your Welfare	Taiwan
Thermal relay	your Welfare	Taiwan
Solid state relay	Aix	Hong Kong
Intermediate relay	Aix	Hong Kong
sensor	Songqi	Taiwan
Time relay	Songling	Taiwan
No fuse switch (air switch)	Shilin	Taiwan
Button switch	JinHongDa	Taiwan
Liquid expansion gas switch	RAINBOW	Korea
motor	Yutian	Taiwan
Wind turbine	Jianyu	Taiwan