TESTO 440 Instruction Manual page 35

Climate measuring instrument
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4 Operation
Preparing for measurement
1
Press
to configure the measurement.
You can set the following parameters:
- Measuring Type: multi-point/timed avg.
- Volume Flow Unit: m
- Correction Factor: 1% to 200%
In a multi-point measurement, a mean value is calculated from the
individual measuring values.
In a timed average measurement, a mean value is calculated over a
certain period.
Several points can be measured. This generates a timed
average/multi-point total mean value.
2
Use
to select the required parameter and make settings.
3
Press
or
to exit the menu.
Carrying out the measurement
A suitable probe is connected to the measuring instrument.
1
Place the flow hood tightly on the air outlet. The flow hood must fully
cover the air outlet.
36
GlobalTestSupply
www.
/h, cfm, l/s, m
/s
3
3
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sales@GlobalTestSupply.com

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