TESTO 300 LL NEXT LEVEL Instruction Manual page 63

2
Start measurement: tap
3
Zeroing is carried out.
4 Position the flue gas probe in the core flow (area of the highest flue gas
temperature). The display of the maximum measured flue gas
temperature in the core flow helps when positioning the flue gas probe.

Measurement (duration 3 min.) can be started as soon as of the O
reading is below 16%.
5
tap .

The qA readings (O
NO mean value are calculated (3 minutes).

The readings are automatically saved.
 The measuring result is displayed after the measuring phase has
been completed.
If the O2 readings exceed 16% during the measurement, no mean
values are displayed on the result screen.
Abbreviations according to DIN EN VDI 4206 part 1
Formula
symbol
CCO, B
.
, FT, AT), draught reading, CO mean value and
2
Designation
Current CO concentration
9 Performing the measurement
2
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