Bench Top User’s Manual
Checks and Maintenance
7.2 Checks
7.2.1 Overheat Protector Trip Test
Before every test, test-trip the overheat protector.
Procedure:
1. Turn the chamber run switch ON. The chamber will start up.
2. Set the overheat protector about 5°C lower than chamber temperature. If the overheat protector is
working properly, the Fault Indicator Light will come on and the chamber will stop running when temper-
ature inside the chamber reaches the overheat protector setting. If the Fault Indicator Light does not
turn on, something is wrong with the equipment. Contact the place of purchase or Espec North Amer-
ica.
3. The Overheat Protector will automatically reset when the temperature inside the chamber falls below
the trip setting.
7.2.2 Wet Bulb Wick Check (Not necessary with temperature-only
chambers)
The wet-bulb wick (included) must be installed to run humidity tests. If already in place, check whether it is
wet or dry before starting. If dry, change it.
Note: Bacteria adhering to the wet-bulb wick can proliferate during tests and block water
supply. Wash hands with soap and water before handling the wick.
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