Measuring Undiluted Co; Measuring Ambient Co - TESTO 325M Instruction Manual

CO undil CO undil
CO amb CO amb

7.4 Measuring undiluted CO

Always carry out a COundiluted measurement prior to a
flue gas measurement because the values for O2, CO and
in the instrument are overwritten during a COundiluted
measurement.
CO undil
1 Select
- The pump starts automatically and the measured value for
undiluted CO (uCO) is shown
2 End measurement via
- The last reading is retained in the instrument until the next
COundiluted measurement.

7.5 Measuring ambient CO

Always carry out an ambient CO measurement before a
flue gas measurement since a value for CO, retained in
the analyser, will be written over when ambient CO is
measured.
Carry out zeroing in fresh air (preferably outdoors) prior to
measuring ambient CO.
CO amb
1 Select in the main menu
with .
- The pump starts automatically and the measured value for
ambient CO (
2 End measurement via
- The last reading is retained in the analyser until the next
ambient CO measurement.
in the main menu
.
.
and confirm selection
) is displayed.
.
7. Measuring
and confirm via .
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