Stability Testing Chambers (CSH/CWH Series)
Simple temperature and humidity testing has long been performed to confirm the quality maintenance properties in R&D and quality control processes for medical supplies, pharmaceuticals, cosmetics, food, packaging material, and more. This system has numerous advantages including ease of operation over long periods of constant use and ease of maintenance.
Guarantees an accuracy of ±1°C/±5% RH - Using new technology (area temperature and humidity control (Japanese patent no.6258110)), this system supports stability testing (accelerated test) (±1°C/±5% RH at 40°C/75% RH) for the notification to regulatory bodies around the world.
These chambers use two refrigeration circuits to reduce the risk of failure and to maintain operation even if one of the circuits should happen to malfunction.
Model Summary
| Stability chamber | |||
|---|---|---|---|
| Model | Temperature & humidity range | Temp./humid. max-minimum range | Inside dimensions W×H×D (mm) |
| CSH-112 | +20 to +75°C / 50 to 90％rh | ±2°C / ±5％rh | W600×H700×D560 |
| CSH-112HG | ±1°C / ±5％rh | ||
| CSH-122 | ±2°C / ±5％rh | W750×H950×D660 | |
| CSH-122HG | ±1°C / ±5％rh | ||
| CSH-132 | ±2°C / ±5％rh | W1100×H950×D760 | |
| CSH-132HG | ±1°C / ±5％rh | ||
| Room type | |||
| CWH-20A | +25 to +40°C / 60 to 75％rh | ±1°C / ±5％rh | W1850×H2100×D2080 |
| CWH-30A | W2750×H2100×D2080 | ||
| CWH-40A | W2750×H2100×D3000 | ||
Additional Features
Area Temperature and Humidity Control System (Japanese patent No.6258110)
An area temperature and humidity control system allows positioning of temperature sensors as desired. Control is performed to correct for deviation from the setting temperature due to the test area size and ambient temperature, which means highly accurate temperature and humidity control within the test area. (CWH).
Virtual Air Jacket System
A new developed Virtual Air Jacket system makes it possible to maintain uniform temperature and humidity distribution within the chamber.
Air blown from below circulates along the chamber walls for stable airflow that is not affected by specimen volume, etc. Storage conditions stipulated by ICH guidelines are maintained, regardless of the position in which specimens are located (within effective dimensions).
±1°C/±5%rh guaranteed
All models fulfill the stability requirements of the Long Term Storage Testing and Intermediate Testing. The CSH-SG also conforms to more demanding Accelerated Testing stability requirements.
Reliable temperature and humidity sensor
A high-accuracy resistance temperature detector (Pt100) is used for the temperature sensor, and a capacitive thin-film polymer sensor is used for the humidity sensor. You are free from wet-bulb wick replacement in dry-bulb systems and the effects of microorganisms that have become attached to the wick.
Clean humidifier
The growth of bacteria is suppressed with a structure that maintains a high humidifying water temperature. The humidifier is also easier to clean.
Full Specification: https://www.espec.co.jp/english/products/catalog/cshcwh.pdf