ROTRONIC Hygrogen2 - Manual (Page 46)

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 42 of 75
Document title
4.4 Range Extensions
Range extension allows the unit to operate down to -5°C and 2%rh and up to 99%rh (between 10°C and
45°C). The unit is able to reach 90%rh above 45°C and below 10°C.
Please be aware that it may take a long time to reach set-points at these extremes of temperature and
humidity, and the unit may need to be individually adjusted to optimise performance. Ambient
conditions will affect the performance of the HygroGen2 at low temperatures. Units that have not been
serviced recently may not achieve these extremes. Control HygroClip2s that are not specifically
calibrated for low temperature & RH operation may require adjustment. Expert adjustment of the
control PID parameters may also be required. PID access is via the Service Menu, which is locked down
for standard operation. For further information please contact [email protected] .
With the Humidity Range Extension the HygroGen2 may be further configured to allow set-points
between 0 and 99.9% RH (maximum 90%RH below 10C). This is done from the Service menu on the
Service screen. The performance and stability of the instrument as it approaches these extreme
conditions is not guaranteed. Furthermore, the accuracy of the control probe needs to be borne in mind.
© 2014; Rotronic AG E-M-HG2-S-V2.1