HeMaTech 3925-0050 - Testing and Setup; Testing the Leak Tester

Testing the leak tester Testing and Setup
EN 3925-0060 V207-00 MANUAL R03.doc
HeMaTech Prüftechnik
104
Testing and Setup
Testing the leak tester
In order to ensure correct functioning of the leak tester Leak Test 0050 and reliability
of the measuring results, you should run a device self test before each use. This test
should be performed without specimen, to achieve a reliable result.
Performing the self-test
 Make sure that the compressed air supply to the device is filtered and free of oil.
Check the filter to be on the safe side.
 Make sure that the supply air pressure is 1.5 bar/ü higher than the adjusted test
pressure, minimum and maximum values are specified in the pressure table on the
back of the device.
 Make sure that the connections for specimen and reference volume are closed
with the supplied caps pressure tight.
 Set up the test program with the following test parameters:
Filling pressure
2.10 bar/ü,
OFF
Underfilling pressure
1.90 bar/ü
Test pressure
2.00 bar/ü
Filling time
3.0 sec
Underfilling time
0.3 sec
Stabilization time
3.0 sec
Pause time
1.0 sec
Tare time
0.5 sec
Measuring time
3.0 sec
Venting time
1.0 sec,
OFF
Pressure tolerance
1.0 %
Measuring value unit
Pascal
Volume factor
1.0000
Rework 1 from
10.0 Pa,
ON
Leak from
50.0 Pa,
ON
Series fault from
5
Protocol
OFF
 Turn the key switch back to the vertical write protection position.
An audible signal will sound and the device will write the data to
the RAM memory.
If the pressure values can not be adjusted because the tester has a lower
pressure range, use the maximum possible test pressure for self testing.
 Press the ESC-key to change to the MAIN MENU.