Instruction Manual KAL 100/200
11
4.2.5 "Test" key
The test feature blocks both pressure ports. This allows the operator to measure
a drop in pressure on the test object itself (leakage test).
Elapsed time and departure from the starting pressure (in %) are shown in the
top line of the display. Pressing the test key starts the measurement again. The
target value feature allows the user to restore the previous target pressure.
Only one pressure port may be connected if using the KAL 200 to generate
positive or negative overpressure. The hose pump draws in air through the
other pressure port.
4.2.6 Pressure key
This allows the user to measure both positive and negative pressures up to a
nominal pressure of +20%. In other words, a KAL 200 with a measurement range
of 1000 Pa can measure up to ±1200 Pa. The pressure measurement capsule is
protected if this value is exceeded. Differential pressures can be measured by
using both pressure ports. Navigation keys do not have any function in this case.
The purge valve is activated or deactivated by repeated pressing of the target
value key.
The P-input must be set properly in order to ensure that pressure measurements
are as accurate as possible. The KAL 200 should also be operated at room
temperature (22°C).
Test
Test 2s -0.02 %
A + 99.98 Pa
+OK
