TestEquity 123HS, Operation And Service Manual

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Chapter 3 – Operation
TestEquity 123HS Temperature/Humidity Chamber Page 3-3
HUMIDITY Light
The HUMIDITY Light will illuminate when the F4/F4T Controller turns on the humidifier
heater to maintain the workspace humidity. The HUMIDITY Light will cycle on/off as the
workspace humidity approaches and reaches the humidity set point.
Note that the HUMIDITY ENABLE must be ON, the chamber workspace must be between
+7
°
C and +90
°
C, and the humidifier water level must be correct for the HUMIDITY Light to
correspond to the humidity output on the F4/F4T controller.
There is no corresponding light on the front panel for the dehumidification function.