sewerin VARIOTEC 480 EX - Measuring in Bar Holes

20
3 Operation
3.2.4 Measuring in bar holes
This menu item allows you to change the measuring mode to
Measuring in bar holes.
Range of use
– Measuring gas dispersal in the ground
– Locating the possible leakage point and classifying the leak
Symbol
Unit
– % vol.
Measuring range
Thermal conductivity sensor 0.0 to 100 % vol.
Electrochemical sensor
(oxygen O
2
)
0.0 to 25.0 % vol.
Measurement data display
– Digit, e.g.
20.9 % vol. O
2
0.60 % vol. CH
4
– Bar display with quasilogarith-
mic scale (for CH
4
)
Fig. 8: Measuring in bar holes measuring mode