TESTO 300 - Serviceability

14 Performing the measurement
78
fluctuations are not recorded in the measurement as well. The relevant
standard provides more detailed information.
4
Start stabilization time: tap . If applicable, follow instructions.

Reading is displayed.

Stabilization time is finished.
End stabilization time early: tap .

Measuring time starts.

The readings are automatically saved and displayed after the
measurement has been completed.
5
The measuring value result can be assessed.
6
Conclude measurement: tap Next.
7
If applicable, repeat measurement: tap .
14.2.15 Serviceability
This measurement is carried out to test the serviceability of an existing gas pipe
system (in contrast to the load test and tightness test 1) and is used to check the
actual condition of the pipes. The pipe system may be in operation or disused.
Adhere to DVGW-TRGI 2018, worksheet G624!
Absolute pressure (parameter of the measuring location) must be
entered to obtain correct readings. If this is not known, it is advisable to
use the value 966 hPa (corresponds to 1013 hPa barometric, 400 m
above sea level).
The testo 300 NEXT LEVEL is not certified according to DVGW G5952;
therefore, no serviceability test according to DVGW-TRGI 2018 may be
carried out with this instrument. We recommend testo 324 for this
measurement, which has been tested and certified in line with DVGW
G5952 by DVGW Karlsruhe and also according to the ÖVGW Guideline
1/2.
>
Insert the connector plug of the hose pressure connection kit (0554
1203) into the flue gas socket and lock it in place by turning it slightly
clockwise (bayonet fitting).