HygroPort I.S. User’s Manual
HygroPort I.S.
System Initializing
Internal
Initializing: 01:32
70.0
°C Temp.
Initializing internal sensor
Figure 4.2
Initialization mode
5.
A 1 minute initialization period begins automatically, after which the screen
will show a countdown of the remaining initialization time. During this period
the sensor is heated to to increase the mobility of water molecules and
reduce the time taken to reach equilibrium with the passing sample gas. The
status display will read
Initializing internal sensor.
6.
After the initialization period of between 4 to 7 minutes is complete, close
the outlet flow control valve and open the inlet flow control valve. Then set
the outlet flow control valve to provide a flow rate through the instrument of
between 0.4 and 1.0 scfh (0.2 and 0.5 Nl/min).
7.
After this, the instrument will commence Measurement mode. During the first
few minutes of Measurement mode it is normal to see the displayed moisture
value drop rapidly below (undershoot) the actual moisture value, before
returning to a stable reading.
8.
The instrument display will show an initial measured value and provide a visual
indication that the sensor is, at first, responding to the sample (status display
shows
Measurement in Progress
), and a short time later, is measuring the
true moisture value (status display shows
Measurement OK
).
9.
Once the instrument’s status display indicates
Measurement OK,
the displayed
value represents the true measured value of the sample.
10.
At the end of the initialization period, the instrument’s menu structure can be
entered, allowing the display parameters to be changed, datalogging to be set
up and the Bluetooth mode to be enabled (refer to Sections 2.6.2 and 2.6.3).
Refer also to the Quick Start Guide for information on correct operation practice.
Issue 6, December 2019
34
Kahn Instruments
Summary of Contents for HygroPort I.S.
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