Configuration - TESTO 945 Application Manual

5. Device control
32

5.3 Configuration

The measuring instrument can be configured via PC.
5.3.1 Configuration
Units
1 Open Units window:
2 Select parameter, unit and
Calculated variables :
3 Confirm input:
5.3.2 Settings
Parameters
1 Open Absolute p p ressure/Density/Pitot t t ube f f actor
(testo 445/645 only):
The software calculates Air density automatically from
the input parameters Absolute pressure, Air moisture
and Temperature.
2 Inputting values:
· Air density influences velocity measurement with
Pitot tube.
· Absolute pressure influences the calculation of
pressure-dependent absolute humidity parameters
(e.g. g/kg)
· Pressure compensation influences velocity
measurement with thermal flow probes.
.
.
.
.