TESTO 324 - Leakage Test (Leakage Measurement)

6 Using the product
44
Carrying out a main test
1. Start measurement: [].
- Zeroing starts (5 s)
- Test pressure (target) is built up automatically by the instrument
Option
> End stability time early: [Next]
> End measurement period early: [Next]
- Main test is ended.
2. Evaluate measurement result: [▲], [▼] → [OK].
- The measurement result is displayed
3. Save measurement result: [Save].
Options
> [Options] → Show Graphic: a section of past measuring
values is displayed in a line graph (zoom function available [▲],
[▼]).
> [Options] → Volume: The pipe volume is determined directly
(the option is no longer available after the measurement).
> [Options] → Manometer: The measuring values are displayed
in the same way.
> [Options] → Factory setting: the values are reset to the
default settings.
> [Options] → Overall graphic curve: the measuring values
across the overall measuring time are displayed in a line graph.
6.2.4.3. Leakage test (leakage measurement)
This measurement is carried out to test the serviceability of an
existing gas pipe system (in contrast to the pretest and main test)
and is used to check the actual condition of the pipes. The pipe
system may be in operation or disused
For the serviceability test, the testo 324 can be operated together
with the feeding unit. The feeding unit supplies the test medium
(gas or air).
The advantages of a measurement with the feeding unit:
• Pressure fluctuations that may occur in gas pipes and affect the
measurement are compensated (test independent of the gas
supply).
• No need to dismantle the gas meter/the instrument can be used
at any point on the system.
• Safe measurements thanks to the feed-in of gas, as there is no
risk caused by air in a pipe carrying gas.