ROTRONIC HP23-AW-A - Manual (Page 26)

E-M-HP23-V2_13
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroPalm HP23-A / HP23-AW-A hand-held
indicator:
User Guide
Instruction Manual
Document Type
Page 26 of 37
Document title
© 2009-2012; Rotronic AG E-M-HP23-V2_13
Water activity mode settings:
Setting Applies to Notes
Dwell Time AwQuick The HP23 waits the specified amount of time before processing the humidity
data with the AwQuick algorithm.
Recommended value: 3 or 4 minutes.
AWQ-Temp AwQuick The HP23 considers temperature to be stable when the rate of change of the
temperature signal is less than the specified value.
Recommended value: 0.01
°C / min
AWE-Temp AwE The HP23 considers temperature to be at equilibrium when the rate of
change of the temperature signal is less than the specified value.
Recommended value: 0.01
°C / min
AWE-Humi AwE The HP23 considers humidity to be at equilibrium when the rate of change of
the humidity signal is less than the specified value.
Recommended value: 0.0001 Aw / min
SaveResult AwQuick
AwE When the Aw measurement is ended, the result is saved in the following
data bins:
Probe 1: Bin 1
Probe 2: Bin 2
5.4.2 Probe usage guidelines
1) HC2-AW probe: check that the red LED on top of the probe is lit. This indicates that the probe is being
powered. If necessary, power the probe by pressing once on the red button located on top of the probe.
When the red LED is not lit, the HC2-AW probe is not powered and the instrument is not receiving a
signal from the probe.
2) Measuring with only one probe at a time: both the AwQuick and AwE functions run simultaneously for
both HP23 probe inputs. We strongly recommend to either disconnect or to power down any unused
probe.
IMPORTANT:
o
The measurement starts simultaneously for both probe inputs (disconnect or power off any
unused probe)
o Usually, the measurement ends at a different time for each probe
o Each probe can be displayed by using the UP or the DOWN key
o Do not press on ENTER until the measurement has ended for both probes