Thermal Shock

ETS Medium-to-Large Thermal Shock

ETS Medium-to-Large Thermal Shock

Meets Mil-Std Test Specifications

The ETS thermal shock chamber is a high quality design with an advanced touch screen controller and an innovative hot/cold transfer system. It is designed to meet strict Mil-Std test specifications, which require temperature recovery to be measured in the worst-case product sample.

The touch-screen controller is user-friendly and designed especially for thermal shock. For Mil-Std 883 testing, the controller actually speeds up test time by detecting when the product has achieved temperature and can go to the next step.

ESPEC’s electric screw-drive lift automatically moves the samples between hot and cold zones. This direct drive method eliminates the problems associated with cables, pneumatic cylinders, or other complicated mechanisms.



Chamber Design Features:

  • Vertical-lift thermal shock chamber with separate hot and cold temperature zones
  • Direct-drive system for reliable transfer between zones (maximum load 150 lb.)
  • The basket carrier includes an adjustable shelf pilaster and one wire mesh specimen basket


Refrigeration and Plenum:

  • Refrigeration maintains user-set low temperature in cold zone
  • Two ¾ hp blower motors circulate the air (one per zone)
  • Dry air purge system extends the time between defrost cycles
  • Non-CFC cascade refrigeration system using semi-hermetic Copeland Discus compressors
  • Hinged service access doors with lockable snap-action latches
  • Sound levels below 70 dBa
  • Three levels of overheat protection


ESPEC’s Exclusive SCP-220TS Programmer:

  • User-friendly touch-screen operation with 6.5″ colour display
  • The trend-graph display shows a record of setpoints and actual values
  • Cycle-time reduction function in compliance with Mil-Std 883, 1010.7
  • Product thermocouple senses when samples are at temperature to start soak time early
  • 20 user-definable programs can be saved with alphanumeric names
  • System alarms are stored in memory for historical review
  • Activated alarms provide on-screen troubleshooting help
  • Built-in timer functions allow the chamber to be started or shut down automatically
  • User-set independent overheat and overcool protectors


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