Thermal Chamber – Hot and Cold Test

Isotech Thermal chambers (Hot & Cold) are ideal for test applications that require quick change in temperature ramp rate such as 1°C and 5°C per minute or as required from clients.

In such applications ramp rate of hot and cold temperatures is important and also mandatory in some standards such as it is constructed in compliance with DIN, MIL, IEC, IS 9000, JESD, SAE and IPC.

These chambers are widely used for testing

  • PCB
  • Electronic components
  • Electrical components semiconductor devices
  • Battery
  • Various electronic devices like mobile phones and monitor etc.

All components of Defence sectors, Aerospace sector, Automotive sector, Agriculture sector, Renewable energy sector and many more.

Main Features

Test space dimensions are 100 litres to 10000 litres & customised volumes.

  • Temperature Range – 75° C to +200° C.
  • Temperature deviation +/-0.5° C.
  • Temperature Resolution 0.1° C.
  • Temperature Gradient +/- 1° C to 2° C.
  • Average Temperature Raise /Fall 1° C to 10° C.


Air circulation within the chamber with suitable capacity of fan motor and impeller for uniform distribution of temperature and humidity to maintain within desired limits. Only the impeller will be exposed in the conditioning plenum, with the drive motor from outside the chamber.

Condition plenum covered with a detachable type sheet for friendly maintenance of the chamber. Noise level is < 70db.

Quick responding jacket type air heaters are used for heating system to achieve the set value temperature. Highly uniform temperature distribution minimizes variations in test results over multiple specimens. Air heaters are placed in such manner that, there is no direct heat radiation from the heaters on to the test specimen.


Water Cooled / Air-cooled mechanical type single stage non-CFC refrigeration system / mechanical type cascade compression refrigeration system. Ozone-friendly refrigerant with hermetically sealed / low power consumption high boosted semi sealed compressor provided and system is designed in such a way that, safety protection against high / low pressure and temperature. Electronic auto expansion valve system for expansion mechanism. Water / Air cooled condenser. Plate fin type cooler. Non-CFC Refrigerant.



Programmable controller using large screen display. Instrumentation package features flexible. Other functions are included user-friendly operation with TFT LCD touch screen as well as key input, graphical display of program patterns, testing history trend grapes. A no. of programs & profile segments with ramp & soak duration provided for cyclic operation.

The controller is able to communicate with many different types of hardware using high speed RS 232/485 / Lan / Ethernet communications ports, networking and USB communications for fast downloads. Power failure recovery operating system. Password protection system.



Thermal chamber (Hot & Cold) equipped with an emergency stop switch. High reliability and operator safety. Easy protection of chamber and specimen in case of failure. Chambers stop if the door is opening as operator safety. Signal tower to find the status of the chamber. Control circuit over current protection. Thermal fuse. Adjustable adequate safety cut – out against high and low temperatures. Chamber door limit switch. Every electrical functional circuit is equipped its own safety facility which shuts down the functional circuit affected or the entire test chamber in case of a malfunction.

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