Walk-in Constant Temperature and Humidity Test Chamber

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Whats/App: +86 185 0176 3615

Web: qinsun-lab.com

The Walk-in Constant Temperature and Humidity Test Chamber is suitable for conducting accelerated humidity and heat testing, cyclic humidity and heat testing, and constant humidity and heat testing on large components, semi-finished products, electronic and electrical equipment, precision instruments, lithium batteries, chemical products, automotive parts, and pharmaceuticals. It can also be used for constant temperature and humidity storage in warehouses and production under workshop conditions, enabling analysis and evaluation of product performance and behavior under simulated environmental conditions during testing.

Standards

GB/T2423.3 Environmental Testing of Electronic and Electrical Products Ca: High Temperature Test Method

GB10589-89 Technical Conditions for Low Temperature Testing

GB/T2423.4-93.507.2 Alternating Humidity and Heat Test

GB/T2423.3-93 Constant Temperature and Humidity Test Method

GB5170.5.-96 Requirements for “Verification Methods for Basic Parameters of Environmental Test Equipment for Electrical and Electronic Products”

Requirements of GJB150. IEC, and other standards

Features

1. Mechanical Structure: Primarily composed of an electrical control system, insulated chamber system, air circulation system, heating system, humidification and water circuit system, refrigeration and dehumidification system, etc.

2. Utilizes modular insulated chamber panels, allowing for arbitrary expansion of internal volume. Easy to assemble and disassemble, with dimensions customizable by the customer.

3. The interior features SUS#304 stainless steel panels, while the exterior utilizes Baosteel A3 powder-coated steel for an aesthetically pleasing finish. Insulation layers employ PU foam or rock wool.

4. The control system incorporates imported single-point or programmable controllers with a user-friendly interface, allowing flexible parameter settings for convenient operation.

5. Refrigeration units incorporate imported European/American compressors with eco-friendly refrigerants. A dual-circuit low-temperature system design employs separate compressors for different temperature zones, extending equipment lifespan.

6. Large observation windows in interior doors facilitate monitoring of test samples.

7. The left side of the unit features a 50mm diameter test port for connecting external power or signal cables (port size and quantity are optional).

8. Utilizes imported fan motors + high/low-temperature resistant aluminum alloy circulation fans. High-quality centrifugal fans ensure powerful air circulation, eliminating dead zones and achieving uniform temperature distribution throughout the test chamber.

9. Equipped with advanced safety and protection devices: earth leakage circuit breaker, over-temperature protector, phase failure protector, water shortage protector, low-water protection, short-circuit protection, current overload protection, along with audible/visual alarms and SMS alerts.

Parameters

Item	Specification
Test Area Dimensions	The specific dimensions shall be determined by the customer according to actual usage!
External Dimensions	Subject to the quotation.
Operating Temperature Range	SBH: +85°C (100°C, 120°C) ~ 0°C (A: 0°C, B: -20°C)
Relative Humidity Range	30% ~ 98%RH- Temperature Deviation: ≤±2°C- Humidity Deviation: +2/-3%RH- Temperature Fluctuation: ≤±0.5°C
Heating Time	≤40min
Cooling Time	30min ~ 180min (varies by model)
Material	Exterior: A3 steel plate with spray coatingInterior: SUS#304 stainless steelInsulation: PU foam and insulation board
Temperature & Humidity Control System	Equipped with imported fully/ semi-hermetic compressors from the US/Europe, R134a/R404a refrigerant, axial flow fans (side/top discharge), high-performance heaters, steam humidification, and ADP critical dew point cooling dehumidification. Air-cooled or water-cooled dual-system refrigeration.
Controller	Programmable type uses Yongheng self-developed touch screen or Korean TH500 controller.Display accuracy: Temperature 0.1°C, Humidity 0.1%RHControl mode: Program/constant value, microcomputer PID controlInput signal: Platinum resistance PT100
Observation Window	Multi-layer hollow electroplated heated explosion-proof glass
Other Accessories	Test holes, lighting, feet, shelf racks (or as specified by customer)
Safety Devices	Over-temperature protection, leakage protection, water shortage protection, humidification system protection, compressor over-pressure/overload/over-current protection, fan over-speed protection, phase sequence protection
Power Supply	AC380V (1±10%) V, 50±0.5HZ, 3-phase 4-wire + protective earth
Optional Accessories	Temperature & humidity recorder, USB & 485 communication, SMS alarm, choice of controller/compressor brand, dual refrigeration system, etc.
Extendable Products	Walk-in environmental test chamber, high-low temperature test room, high-temperature aging room, constant temperature & humidity workshop/room, dust-free room, purification room, etc.
Special Notes	Custom dimensions are available to meet customer requirements.

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