ROTRONIC Hygrogen2 - Manual (Page 23)

E-M-HG2-S-V2.1
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroGen2: Humidity and Temperature Generator
with AutoCal/AutoCal+, Remote Control and
Range Extensions options.
Instruction Manual
Instruction Manual for Software
Version 2.1
Document Type
Page 19 of 75
Document title
When set-point combinations are programmed that resolve a low dew point condition (i.e. 0°C, 5%rh =
-36°C dew point), make sure that the desiccant is dry enough to achieve the desired value. Check the
desiccant condition on the Settings screen (Figure 12) and consult maintenance records to establish
when the desiccant was last changed. Stabilisation time to low RH conditions will be longer than normal
as the chamber and internal surfaces need to be very dry.
Temperature and Humidity Control (items 5 & 9)
The Temperature and humidity control can be set to automatic or off. Automatic mode results in the
unit attempting to adjust to the temperature (or humidity) in the chamber to match the set-point value.
When switched off the HygroGen2 does not control the parameter.
When off, the control buttons are grey.
When on, but not stable, the control buttons are red.
When on and stable, the control buttons are green.
© 2014; Rotronic AG E-M-HG2-S-V2.1