User Manual

5 Using the manifold
15
Leak test / pressure drop test
Systems can be tested for tightness with the temperature-
compensated leak test. The system pressure and the ambient
temperature are measured over a defined period of time, typically
with an inert gas such as Nitrogen. A temperature probe can be
connected that measures the ambient temperature. : Optional air
temperature probe, part. no. 0613 1712) is recommended.
Measurement data of the temperature-compensated differential
pressure and temperature, from start to the end of the test, is
displayed. It is possible to perform a leak test without connecting a
temperature probe.
1. Press [Mode] ΔP is displayed.
2. Start the leakage test: Press
[R, ►, ■].ΔP is now flashing and
hh:mm timer is on.
3. End the leakage test: Press
[R, ►, ■]. ΔP stops flashing
and hh:mm timer stops.
- Result is displayed. Note: Leak test time duration and
ΔP value
4. Confirm message: Press
[Mode] to exit leak mode.
Differential
pressure start
compared to
actual
Measured
pressure
beginning
of test
Duration
of test
Actual
measured
pressure