Product Description

The walk-in constant temperature and humidity chamber is suitable for testing complete units or large components under conditions such as low temperature, high temperature, temperature cycling, constant damp heat, and alternating damp heat. Chamber dimensions and functions can be customized to meet user requirements; the unit features an aesthetically pleasing design and a scientifically engineered airflow system to satisfy diverse customer needs. It utilizes a PLC-based programmable controller with a touchscreen interface.

Performance and Features:
1. Offers an exceptionally wide temperature and humidity control range to meet various user requirements. Employs a unique balanced temperature and humidity control method to ensure a safe and precise testing environment. Features stable and balanced heating and humidification capabilities, enabling high-precision, highly stable control.
2. Equipped with a high-precision, intelligent temperature controller; temperature and humidity are managed via a full-LCD programmable instrument (e.g., Model 7751; alternative models like the OYO 5461 LCD programmable instrument are available upon request).
3. Supports optional computer integration for remote control capabilities based on functional requirements.
4. Features automatic refrigeration circuit selection; the control system automatically selects the appropriate refrigeration circuit based on the temperature setpoint, allowing for direct startup of the refrigeration unit and rapid cooling even from high-temperature states.
5. The inner door is fitted with a large observation window, facilitating easy monitoring of the test specimen's status.

6. Equipped with advanced safety protection devices, including an earth leakage circuit breaker, over-temperature protector, phase-loss protector, and water-shortage protector.

Standards

GB2423.1-89，GB2423.2-89，GB/T2423.3-93，GB/T2423.4-93，GB/2423.22-87Nb，GB2423.34-86，GB/150.9-86, IEC60068-2-1,IEC60068-2-2,IEC60068-2-3

Technical Data

No.	Parameter	Value
1	Standard Chamber Volume	1, 2, 5...25, 30, 40 cubic meters
2	Upper Temperature Limit	85℃ (customization required for temperatures above this value)
3	Lower Temperature Limit	-70℃
4	Temperature Deviation	±2℃
5	Temperature Fluctuation	±0.5℃
6	Humidity Range	30-98% R.H.
7	Humidity Tolerance	+2/-3% R.H.
8	Heating Rate	Average 1℃/min
9	Cooling Rate	Average 1℃/min
10	Cooling Method	Water Cooling
11	Controller	Chinese LCD Touch Screen Temperature Controller
12	User Program Capacity	120 groups, 1200 sections
13	Safety Protection Measures	Upper temperature limit control, compressor overpressure protection, compressor overload protection, heater short circuit protection
14	Power Supply	380V, 50Hz, 3-phase 5-wire
15	Material	Fireproof insulation cotton + stainless steel color steel plate (SUS#304 stainless steel for temperatures above 85℃)
16	Control Mode	Program-controlled temperature and humidity