TESTO 435 - Mean Value Calculation; Zeroing Internal Pressure Sensor


Activating the TURB measuring program:
The measuring program for measuring turbulence is only available if a
turbulence probe is plugged in.
 The main menu is open, Menu is displayed.
1 Meas-Prog  .
2 Press / to select Turb and confirm with .
- The instrument returns to measurement view.
6.2.3 Mean
The menu item Mean value calculation is only available in the instrument
testo 435-2/-4. In the instrument testo 435-1/-3, the function Mean value
calculation is called up with the function button .
For carring out Mean value calculation see chapter Measuring, p. 26.
6.2.4 P = 0 (435-3/-4 only)
The internal pressure sensor can be zeroed.
The measurement values can be falsified by a change in the position of the
measuring instrument. After zeroing, the position of the measuring instru-
ment must not be changed. Carry out zeroing before every measurement in
order to compensate faulty positioning or long-term zero-point drift. Zeroing
is only possible in a range of 0...25% of the measuring range.

Zeroing the internal pressure sensor:
 The main menu is open, Menu is displayed.
 P=0 .
OK
Mean
OK
OK
6. Setting the instrument22