Drug Stability Test Chamber LDST-A20

Drug Stability Test Chamber LDST-A20


Drug Stability Test Chamber LDST-A20 designed with 100 L internal capacity volume. It offers 20 to 98 % RH humidity range and temperature ranges from 0℃ to 100℃. Designed to simulate constant climatic conditions for testing a wide variety of pharmaceutical raw Drug material or finished Drug products for their quality, performance, shelf life and stability. It features conductive film located on the interior glass (of double layer 8 cm thick insulation glass) to prevent window frosting, built-in LED light for the work room lighting to clearly observe samples. A good temperature humidity chamber is essential for evaluating potential success or failure of a product in the field.





Interior Volume100 L
Heat load1000 W
Temperature Range0℃ to 100 ℃
Temperature Deviation in time± 2.0 ℃
Temperature Fluctuation± 0.5 ℃
Humidity Range20% to 98% RH
Humidity Deviation in time± 2.5% RH
Cooling Rate1 ℃ / min
Heating Rate3 ℃ / min
Cooling systemMechanical compression refrigeration system
Refrigerating unitFrench TECUMSEH compressor
RefrigerantR404A, R23
Heating ElementNichrome heater
ControllerProgrammable color LCD touch screen controller Ethernet connection, PC Link
Water supply systemAutomatic water supply Water purification system
HumidifierExternal isolation, stainless steel surface evaporation humidifier
DehumidificationEvaporator
Temperature SensorPTR Platinum Resistance PT100 Ω/MV A-class, accuracy 0.001℃
Humidity SensorDry and wet bulb sensor
Build-in Water Tank270 × 300 × 400 mm
View Window Size250 × 280 mm
Air CirculationCentrifugal wind fan
Exterior MaterialSteel Plate with protective coating
Interior MaterialSUS304 stainless steel
Thermal InsulationPolyurethane foam and insulation cotton
Observation WindowInterior lighting, double-layer thermo stability silicone rubber sealing
Standard Configuration1 Cable hole (Φ 50,) with plug; 2 shelves
Maximum Noise65 dBA
Ambient Temperature5℃ to +35 ℃
Relative Humidity≤ 85% RH
Internal dimension400 × 500 × 500 mm
External dimension860 × 1050 × 1620 mm
Power Supply220 V, 50 Hz / 380 V, 50 Hz
Net weight290 kg
Gross weight340 kg
  • Designed with PID controller system to control main unit, temperature system and Display
  • Double layer insulating glass 8 cm thick, made of tempered glass
  • Internal material designed with mirror surface finishing, 304 stainless steel which is rust proof, corrosion resistance
  • Heat load can absorb 1000 W in -20℃
  • Built-in LED light for the working room light which clearly observe samples
  • The filter element is suggested to be replaced once a year
  • Water re-circulation system consisting of water purifier which purifies sourced water to water tank, reduces water use and series of pipes
  • Designed with PT-100 sensor, real time accurate detection and display of temperature
  • Wet gauze and a real-time temperature, converted by temperature difference, show real-time relative humidity
  • LCD display, which can display test conditions
  • Equipped with automatic humidification, which automatically heated by the humidification tank
  • High and low temperature corrosion resistance external material is made up of A3 steel plate with galvanized coating
  • Provides protection against over temperature, water shortage, over current, earth leakage, phase sequence, humidifier dry combustion, and refrigerant high pressure
  • 10 cm thick polyurethane foam and insulation cotton provides better insulation
  • Standard test Cable hole 50 mm inner diameter, located at left side of work room, is provided with sieve inside to prevent moisture from entering the room
  • SUS304 stainless steel shelves, standard configuration 2 pcs (removable, adjustable height), 50 kg sample load of each shelf
  • 4 movable castors for ease moving, and with brakes function
Drug Stability Test Chamber is used in food industry also basic used in advanced research, Pharmaceutical Drug stability testing point, chemical industries, and including testing products relating to aerospace, electronics, automobile and environmental stress screening etc.

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