Description
PW-CTH100-40 Vertical type PW Instrument Constant Temperature and Humidity Test Chamber Machine Manufacturer Sale
Structure
b. External dimensions: W78×H157×D105cm
c. Space requirement: W140×H200×D137cmMaterial: a. Inner box material: mirror stainless steel plate (SUS#304).
b.Outer box material: first-class steel plate electrostatic spray.
c. Base material: National standard angle iron.
d. Thermal insulation material: rigid Polyurethane foam + glass wool.
Air circulation system: a.60W motor 1
b. Lengthen the axis.
c. Multi-wing wind wheel.
d. Special adjustable louver air circulation system.
Box door: Single open door, left open, handle on the right hand side.
Window: Three vacuum layers.
Door buckle: embedded non-reaction flat handle.
Back button: SUS#304.
Window light: 13W.
Test hole: 1 50mm hole on the left side of the body, 1 stainless steel hole cover, 1 silicone plug.
System
Compressor: French Taikang fully enclosed compressor.
Refrigerant: environmentally friendly refrigerant R-404A.
Condenser: Air-cooled condenser.
Evaporator: fin type evaporator.
Other originals: filter drier (ALCO in the United States), solenoid valve (Lu Gong in Japan);
Refrigeration accessories such as oil separator (American ALCO) are imported.
Surrounding environment requirements
A. Power: AC, single-phase, 50/60HZ, 220V, 3.5KW. Allowable voltage variation: ±10% of rated voltage
B. Maximum load capacity: 3.5KVA
C. Maximum current: 16A
2, the use of ambient temperature requirements: 0 ℃ ~ 33 ℃
3. Performance guarantee temperature environment requirements: 5℃~28℃
4. The relative humidity requirements of the operating environment: ≤85%R.H
5. Atmospheric pressure of operating environment: 86~106K
6. The test box should be placed horizontally in a well-ventilated test room, without strong vibration around, no strong electromagnetic field influence, no high-concentration dust, flammable, explosive, volatile, and corrosive substances, no direct sunlight or other heat sources Direct radiation (quite important)
Humidity range: 20%~98%RH
Heating time: -40℃~+100℃ within 45min (no load)
Cooling time: +20℃~-40℃ within 45min (no load)
Control stability: temperature ±1.0℃, humidity ±1.0%RH
Control uniformity: temperature ±2.0℃, humidity ±3.0%RH

High-Performance Climate Testing
The PW CTH100‑40 functions as a robust environmental test chamber, enabling stable simulations of temperature and humidity cycles. Its controlled range spans from –40 °C to 150 °C and humidity levels between 20 % RH and 98 % RH. Equipped with a cascade dual-compression refrigeration system and stainless steel inner lining, it efficiently maintains test integrity across environmental chambers use cases.
Engineered for Efficiency and Precision
This temperature humidity test chamber features precise control with temperature stability of ±0.3 °C, humidity stability of ±0.5 % RH, and resolution down to 0.01 °C and 0.1 % RH. Uniformity is ±2 °C and ±3 % RH under load. A single-door design with compact external dimensions (approx. 78 cm wide) supports easy integration into lab environments—true to form for a humidity chamber optimized for flexibility.
Advanced Controls and Safety Systems
Utilizing a user-friendly touchscreen controller, the chamber supports programmable cycles with multi-segment, loopable profiles and memory recovery after power failure. It includes robust safety features—over-temperature protection, humidity system safeguarding, phase failure defense, water shortage alarms, and more—making it a reliable climate chamber solution for demanding testing regimes.
Product Advantages
Exceptional Environmental Stability
The chamber’s advanced refrigeration and humidification systems ensure highly accurate control of humidity and temperature fluctuations, enhancing repeatability across environmental chambers testing environments.
Compact Design for Lab Practicality
Despite offering 100 liters of interior volume, the chamber’s compact footprint and vertical orientation enable it to fit standard lab configurations as an efficient climate chamber.
Flexible and Secure Operation
With programmable profiles, touchscreen controls, and a suite of protective features, the chamber ensures both adaptable test scheduling and secure operation, setting it apart among temperature humidity test chambers.
About Us
PW Instruments (Guangdong) Co., Ltd, established in 2007, is a distinguished environmental chamber manufacturer, specializing in a wide range of testing instruments including temperature humidity test chambers, climate chambers, universal testing machines, and environmental test chambers. Based in Dongguan, PW combines strong R&D capabilities with certified quality systems (ISO, CE, SGS) to serve diverse sectors such as electronics, automotive, aerospace, packaging, and material research. Our mission is to deliver durable, accurate, and user-friendly testing solutions that support global customers in achieving reliable performance and compliance.
Contact us today to equip your lab with a high-precision temperature humidity test chamber tailored to exact climate testing needs.
FAQ
What’s the temperature and humidity range of the CTH100‑40?
It ranges from –40 °C to 150 °C in temperature and 20 %–98 % RH humidity.
How accurate is the chamber’s control?
Stability is ±0.3 °C for temperature and ±0.5 % RH for humidity, with resolution down to 0.01 °C and 0.1 % RH.
Can I program custom test cycles?
Yes. The touchscreen supports up to 12 programs with 120 segments, loopable up to 999 cycles, with resume after power outages.
Is the chamber safe to operate continuously?
Yes. It includes comprehensive safeguards such as over-temperature, humidity system protection, phase sequence, water shortage, and compressor overload protections.
What is the size and capacity of the chamber?
It offers an internal volume of 100 L in a compact exterior footprint (~78 cm W × 157 cm H × 105 cm D), ideal for labs needing a space-saving environmental chamber.







