Product Overview
The JZ YP Series Pharmaceutical Stability Test Chamber is designed for stability studies, accelerated testing, intermediate-condition testing, and long-term sample storage involving pharmaceutical products, active pharmaceutical ingredients, formulations, packaging materials, and health products. The integrated system combines temperature and humidity control, forced-air circulation, data acquisition, storage, and alarm functions to provide stable environmental conditions for pharmaceutical research and quality-control laboratories.
How It Works
Heating, refrigeration, humidification, and dehumidification components work with precision temperature and humidity sensors. A circulating air duct promotes uniform conditions throughout the chamber, while the microprocessor controller continuously adjusts the system to maintain the programmed setpoints. Test data are recorded automatically during extended operation for long-term stability and accelerated aging studies.
Key Advantages
Temperature, humidity, air circulation, data recording, and alarm protection are combined in one chamber with visual setpoint and duration controls.
The system supports continuous 24-hour operation and automatic data storage, reducing manual recordkeeping during long-term stability studies.
Closed-loop control and circulating airflow help minimize temperature and humidity variation and support repeatable conditions across multiple sample batches.
Standard JZ-YP models are supplied without lighting. JZ-YP Z models provide adjustable three-sided illumination for combined stability and photostability testing.
A corrosion-resistant stainless-steel chamber, optimized refrigeration and humidification system, low operating noise, and easy-clean surfaces support long-term use and routine maintenance.

Applications
Suitable for active ingredients, tablets, capsules, injections, pharmaceutical packaging materials, health products, and related samples. Typical users include pharmaceutical manufacturers, drug-control institutes, independent pharmaceutical testing laboratories, university pharmacy laboratories, and medical-device quality-control departments.

Model Selection Guide
| Parameter | JZ-YP160 | JZ-YP250 | JZ-YP500 | JZ-YP800 | JZ-YP1000 |
| Capacity | 160 L | 250 L | 500 L | 800 L | 1000 L |
| Temperature Range | 0 to 65 deg C | 0 to 65 deg C | 0 to 65 deg C | 0 to 65 deg C | 0 to 65 deg C |
| Lighting | None | None | None | None | None |
| Temperature Resolution | 0.1 deg C | 0.1 deg C | 0.1 deg C | 0.1 deg C | 0.1 deg C |
| Temperature Fluctuation | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C |
| Temperature Uniformity | +/- 1.5 deg C | +/- 1.5 deg C | +/- 2 deg C | +/- 2 deg C | +/- 2 deg C |
| Humidity Range | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH |
| Humidity Fluctuation | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH |
| Ambient Operating Temperature | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C |
| Power Supply | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz |
| Workspace Dimensions W x D x H | 550 x 450 x 700 mm | 600 x 500 x 850 mm | 700 x 600 x 1200 mm | 920 x 650 x 1350 mm | 1050 x 600 x 1600 mm |
| Timer | 0 to 9999 minutes or hours | 0 to 9999 minutes or hours | 0 to 9999 minutes or hours | 0 to 9999 minutes or hours | 0 to 9999 minutes or hours |
Models With Adjustable Lighting
| Parameter | JZ-YP160 Z | JZ-YP250 Z | JZ-YP500 Z | JZ-YP800 Z | JZ-YP1000 Z |
| Capacity | 160 L | 250 L | 500 L | 800 L | 1000 L |
| Temperature Range | 10 to 50 deg C with lighting; 0 to 65 deg C without lighting | 10 to 50 deg C with lighting; 0 to 65 deg C without lighting | 10 to 50 deg C with lighting; 0 to 65 deg C without lighting | 10 to 50 deg C with lighting; 0 to 65 deg C without lighting | 10 to 50 deg C with lighting; 0 to 65 deg C without lighting |
| Lighting | Six adjustable levels; at least 10000 lx; three-sided illumination | Six adjustable levels; at least 10000 lx; three-sided illumination | Six adjustable levels; at least 10000 lx; three-sided illumination | Six adjustable levels; at least 10000 lx; three-sided illumination | Six adjustable levels; at least 10000 lx; three-sided illumination |
| Temperature Resolution | 0.1 deg C | 0.1 deg C | 0.1 deg C | 0.1 deg C | 0.1 deg C |
| Temperature Fluctuation | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C | No more than +/- 0.5 deg C |
| Temperature Uniformity | +/- 1.5 deg C | +/- 1.5 deg C | +/- 2 deg C | +/- 2 deg C | +/- 2 deg C |
| Humidity Range | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH | 30 to 95 percent RH |
| Humidity Fluctuation | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH | +/- 3 percent RH |
| Ambient Operating Temperature | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C | 5 to 35 deg C |
| Power Supply | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz | 220 V / 50 Hz |
| Workspace Dimensions W x D x H | 550 x 450 x 700 mm | 600 x 500 x 850 mm | 700 x 600 x 1200 mm | 920 x 650 x 1350 mm | 1050 x 600 x 1600 mm |
