TESTO 480 - Page 24

6 Using the product
24
Standard flow rate
Value calculated from the operating flow rate and relating to the
values entered under norm data (e.g. 25 °C, 1013 hPa). To edit
norm data, see Performing settings, page 20.
Dampness degree (pressure-dependent)
Unit g/kg: Describes how many grams of water are contained in a
kg of dry air. It is used to calculate the absolute pressure entered
under norm data.
Water content
Indicates the volume percentage of water vapour in the measured
gas. Unit is not absolute (ppm or %).
Dewpoint
Temperature at which condensation of the water vapour in the gas
occurs.
Psychrometer temperature (pressure-dependent)
Wet-bulb temperature of a psychrometer. It is used to calculate the
absolute pressure entered under norm data
Enthalpy
Heat content of the measured gas. Unit kJ/kg or BTU/lb.
Absolute humidity
Describes how many grams of water are contained in a cubic metre
of the currently measured gas. Unit g/m³.
Calculated measurement parameters can be inserted in the display
as follows:
1. Select the tab for which the parameter display needs to be
changed: press [ ].
2. Press [ ].
- The Options configuration menu is opened.
3. Press [ ] to select Display.
4. Open the Display menu: press [ ].
5. In the Display menu, press [ ] to select the Parameter
display sub-menu and open with [ ].
6. Select Insert line [ ] and confirm with [ ].
7. In this view, select the measurement parameter and the unit
required: