top of page

Photovoltaic Environmental chamber 

  • Chamber Capacity: 1000 litres to 50,000 litres.   

  • Temperature Range: =-70°C  to +150°C

  •   Accuracy : +/-0.5°C  to 1 °C

  • Gradient Temperature : +/- 2°C   

  • Humidity Range: 10% RH to 98% RH.

  • Accuracy: 2% RH

  • Electrical connection: 415VAC+/-10% ,50Hz, 3 phase/N/E Or 230V AC +/-10%,50 HZ.. Temperature resolution: 0.1°C.

  • Test Standards: DIN,MIL, IEC,QM-333,IS9000 , IS.


  • The design of the chamber is such that the height of the chamber floor shall not be more than 0.2m to facilitate ease of loading/unloading or making connection of the probe lead to the PV modules by the operator.

  • The compressors & other fittings will be at the back side of the chamber.

  • The designs considered for ambient temperature range for satisfactory operation of the chamber from 10+/-2°C to 45 +/-2°C

De humidification system:

  •   A refrigeration based de humidification system provided to avoid the condensation forming on test specimen as well as control the lower relative humidity.

  • The desired level of lower humidity will be achieved by maintaining the precise dew point temperature.

  • The output will be automatically activated based on the set points as well as in ramp up mode after a low temperature cycle.

Humidity control systems:

  • A low pressure free vapour moisture generator using direct vaporisation system  is used for stimulating the required humidity. Reservoir with automatic float switch/valve provided to maintain at appropriate level for continuous water supply to the humidity tank . The saturated air to be circulated into the workspace

Refrigeration System :

  • A High boosted low temperature application sealed/ semi sealed compressor is used to achieve and maintain the required  negative temperatures .

  • Non CFC eco friendly refrigerants are used with components complying to all international safety and environmental guidelines. The system is provided with adequate safety protection against excessive and low pressure and high pressure.

  • Pressure gauges provided to indicate suction and head pressure .HP/LP cut off switch and overload protection for the system.

  • Oil separators with oil return & hot gas defrost provided.

Controller  System:

  • PID/HMI with PLC based color display TFT touch screen with Program Logic Controller. No. of programs & profile segments with ramp & soak duration are  provided for cyclic operation .

  • The controller is able to communicate with many different types of hardware using high speed RS 232/485 communication ports and Ethernet/USB communications for fast  downloads. Remote monitoring & operation.

  • Internet explorer based comm. On board Comms. Ports. Set value & process value with graphical on main screen.

  • Graphical trend and operating parameters of auto tune & calibration. PC communication facility for operating the chamber through PC & data logging option provided with log interval.

  • The latest version software (user friendly) provided with controls & instruments.

  • Fault indication


  • The Hygro clip series are digital humidity-temperature probes based on the air chip 3000 technology or 4 -20 mA.

  • These probes feature a UART serial interface and two 0…1 V linear analog output signals. The probes are designed to use with the hygroclip 2 generation of ROTRONIC humidity temperature instruments.

  • The probes maintain all of the benefits of the original hygroclip technology such as the possibility of hot swapping probes and features significant improvements in the area of measurement accuracy and functionality.

  • UV Preconditioning test: To precondition the module with UV radiation before the thermal cycle/humidity freeze tests to identify those materials and Adhesive bonds that are susceptible to UV degradation

  • facebook-square
  • Twitter Square
  • youtube-square
bottom of page