ROTRONIC HygroLab - Manual (Page 15)

IN-E-HyLab-V4_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroLab bench top indicator version 4:
instruction manual
Document title
Page 15 of 51
© 2006; Rotronic AG IN-E-HyLab-V4_11
HygroLab 1 HygroLab 2 and 3
5.1 Unit system
The unit system can easily be set to Metric or English from the keypad (except HygroLab 1) -see
MENU, SETTINGS. The unit system can also be changed from a PC with the optional HW4
software installed. In that case, connect the HygroLab to a free COM port of the PC using either the
internal service connector (all models) or the RS232 port (HygroLab 2 and 3)
Note: except for the HygroLab 1, the instrument can be configured to display water activity instead
of relative humidity: (instrument configuration with the HW4 software):
1.000 Aw = 100.0 %RH
To change the factory configuration for humidity either use the keypad MENU, SETTINGS (except
HygroLab 1) or use the optional HW4 software installed on a PC and the appropriate connecting
cable: cable AC1623 for all models (see Accessories) or cable type RS232 9pol ST-BU for the
HygroLab 2 and HygroLab 3 (see Connectors for part number).
5.2 Display and keypad
The LC display shows which probe input is being displayed (small indicator on top of the display)
and up to 2 parameters measured by the probe, with the associated engineering unit. When
relevant, the message line provides additional information.
Parameter or
Trend indicator
Message Line
Engineering
Units
Probe Input
(1-4) from left to right
Humidity and Temperature
Calculated Value and Temperature
Calculated Value and Humidity