E h s [ a w / m i n, E t s [ ° c / m i n – ROTRONIC HygroLab User Manual
Page 19
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 19 of 51
© 2006; Rotronic AG IN-E-HyLab-V4_11
a) Standard Mode:
No further action is required after selecting this mode. Simply proceed with the measurements.
b) AwE Mode:
Upon selecting this mode, the HygroLab 3 displays the following:
0. 0 0 0
1
E H S [ A w / m i n ]
Use the ▼ or ▲ arrow to set the definition of stable humidity. In the above example, the HygroLab
will consider humidity to be at equilibrium when the rate of change of the humidity signal is less
than 0.0001 Aw per minute. Default value: 0.0001 Aw / min
Press the ENTER key to record and confirm this setting. The display now shows the following:
0. 0 1
E T S [
° C / m i n ]
Use the UP or DOWN arrow to set the definition of stable temperature. In the above example, the
HygroLab will consider temperature to be at equilibrium when the rate of change of the temperature
signal is less than 0.01
°C per minute. Default value: 0.01 °C / min
Press the ENTER key to record and confirm this setting. The AwE mode is now active.
When ready to measure, press the ENTER key to access and start the AwE mode. Press the
ENTER key again to stop the AwE mode at any time and return to the Standard mode.
Notes:
When the HygroLab 3 is in the AwE mode, pressing the ENTER key automatically starts the
AwE mode, unless the MENU key was pressed immediately before pressing the ENTER key.
The ON / OFF key is inoperative in the AwE mode. You must stop the AwE mode in order to be
able to turn the power of with the red ON/OFF key.
For instructions on using the AwE mode, see Water Activity Measurement.