5
1 General
1.5
Allocation of tasks to applications
The device is used in measuring mode in four applications:
●
Inspection above ground
●
Measuring in bar holes
●
House
●
Gas measuring
Owing to the high sensitivity in the ppm range, the
Inspection
above ground
and
House
applications are particularly suitable
for leak detection but less so for reproducible measurements.
The table is designed to help you decide which application to
choose for which activity (in accordance with /1/
).
Location
Task
Application
●
Poorly accessible
gas pipes
– underground
–
laid in floors
●
Measuring very low gas concen-
trations:
–
above ground or above the floor
– above possible leakage points
Inspection
above ground
●
In the ground
●
Measuring the gas concentration
for:
– Determining gas dispersion
(detection limit)
– Locating a probable gas escape
(repair point)
– Preventing possible dangers
Measuring in
bar holes
●
In the house
●
Freely accessible
pipes
●
Industrial plants
●
Test laboratories
●
Measuring very low gas concen-
trations
●
Locating the source of gas
●
Finding leaks at internal connec-
tions
●
Leak testing of industrial compo-
nents
House
●
Pipes
●
Gas systems
●
Measuring the gas concentration
●
Purging (to demonstrate purity or
absence of gas, e.g. when com-
missioning/decommissioning gas
systems)
Gas
measuring
