TESTO 300 - Tightness and Serviceability Tests

14 Performing the measurement
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2
Start measurement: tap .

Reading is displayed.
3
End measurement: tap .
14.2.14 Tightness test 1
The tightness test 1 (using air or inert gas such as CO
2
or N
2
) is a tightness test
for pipes, including fittings, but without gas appliances and the relevant
regulating and safety devices. The tightness test 1 is carried out after a load test
has been successfully completed on newly laid gas pipes, or after renovation of
existing gas pipes, and is used for the acceptance of these pipes. It shows up
even the smallest leaks in gas pipes.
According to DVGW TRGI 2018 and ÖVGW G10, the stabilization time
and test time depend on the pipe volume.
- Pipe volume < 100 l: Adjustment time 10 min, test time 10 min.
- Pipe volume > 100 l to < 200 l: Adjustment time 30 min, test time
20 min.
- Pipe volume > 200 l: Adjustment time 60 min, test time 30 min.
>
Connect the connector plug of the hose pressure connection kit
(0554 1203) to the pressure test kit (0554 1213). Insert the pressure
adapter into the flue gas socket and lock by slightly turning it clockwise
(bayonet fitting).
Carrying out the measurement
✓
The pressure socket of the instrument must be free (depressurized, not
closed).
✓
Pressure zeroing has been carried out.
1
Call up function: | Tightness test 1.
2
Set parameters or enter values.
All values that can be modified have a dotted underlining.
3
Pressurize the system.
Once the pressure has built up, a stabilization time specified by DVGW-
TRGI 2018 should be observed to ensure that any possible pressure