This test chamber is used for cold, heat, humidity and dryness testing of raw materials and devices such as electronics, electricians, electrical appliances, plastics, etc. The purpose is to confirm the products reliability of storage and transportation under high and low temperature alternating heat and humidity.

Technical Parameters

Technical Parameters
Control & Operation	PLC and touch screen intelligent control system
Chamber Size	Inner Size	External Size
	120010001000 mm	148021501520 mm
Temperature Range	-40 °C ~+150°C
Humidity Range	20%～98%RH
Temperature fluctuation	±0.5℃
Humidity fluctuation	≤2.5%
Temperature deviation	≤±2.0℃
Humidity Deviation	≤±3%
Heating Rate	≧2-3°C/min
Cooling Rate	≧1°C/min, average no load
Load condition	None
Working noise	A sound level≤70dB(A) (Measured in a soundproof room with an ambient temperature of 25°C and low echo. Using A weighting, test the average of 9 points. Each test point is 1 meter away from the noise source horizontally and 1 meter above the ground.)
Temperature and Humidity Range Scheme
Structural features
Insulation enclosure structure	1. Outer wall material: A3 board spraying. 2. Inner wall material: brushed stainless steel plate SUS﹟304. 3. Chamber thermal insulation material: 100mm high temperature resistant rigid polyurethane foam. 4. Chamber door insulation material: 100mm high temperature resistant rigid polyurethane foam.
Bottom structure strength	The weight capacity of the track at the bottom of the test chamber: ≤100Kg/m² (load)
Air conditioning channel	1. Stainless steel long-axis centrifugal fans: 2 sets/90W. 2. Fan, heater, evaporator (also dehumidifier), drainage device, pressure balance port, adjustable air deflector, temperature sensor
Standard configuration of test chamber	1. Observation window: 400x600x40mm 3-layer vacuum tempered glass 2. Flat embedded handles 3. Door hinges: SUS #304 imported hinges 4. Energy-saving lamp inside the chamber 5. Lead hole: φ50mm 1 piece
Chamber door	1. Double doors open outwards, with hinges on the left and right sides and a handle in the middle (when facing the front of the box). 2. Equipped with a safety door locking mechanism (the door can be opened in the test room), the door is equipped with electric heat to prevent condensation, and the visible range of the insulating glass observation window (W400×H600mm). The door frame is equipped with an anti-condensation electric heating device.
Control panel	Controller 7-inch display screen, temperature (humidity) control display screen, operating indicator light, and lighting button.
Mechanical room	Refrigeration unit, compressor water tray, pressure relief device, heating device
Power distribution cabinet	Distribution board, cooling fan, main power switch, transformer, intermediate relay, time relay, solid-state relay, AC contactor, circuit breaker
Heater	1. Fin-type radiator-shaped stainless steel electric heater 2. Heating control method: SSR (Solid State Relay) non-contact equal period pulse width modulation 3. Heating power: approximately 3KW
Power cable hole	Located on the back of the chamber