Instruction Manual KAL 100/200
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4.2.7 Pressure input port
For technical reasons, the sensitivity of the pressure sensor
varies according to the pressure chamber used. Selecting the
pressure input allows the user to compensate for these
differences. The selected setting is displayed along with the
"+P", "-P" or "dP" symbols.
4.2.8 Purge feature
If the instrument is in target value or pressure mode, the purge feature can be activated or
deactivated by pressing the appropriate key again. This connects the two ports of the
instrument with each other internally in order to release any overpressure. This feature is also
useful if sensitive sensors are to be connected. The use of short lengths of tubing can result in
high pressures, which may damage or even destroy the sensor. No pressure can build if the
purge feature is activated as the air can escape through the free port. When the purge feature is
activated, the two pressure ports of the KAL200/100 are displayed in the lower line on the right.
4.3
Menu items
4.3.1 Incrementation
This feature allows the user to modify the percentage of the target value in the following
increments: 5 %, 10 %, 20 %, 25 %, 50 % and 100 %.
4.3.2 P-input
This allows the user to select the pressure input as: +P, -P or DIFF.
