TESTO 6681 Instruction Manual page 33

The 1-point adjustment can be performed
via the user menu (see chapter 1.4.6.9) or
•
via the P2A software (see volume 2, chapter 3).
•
Please note that the 1-point adjustment is generally
performed on the basis of the % RH and °C/°F parameters.
1.3.3.3 2-point adjustment
With the 2-point adjustment, the parameter is adjusted to the reference value
at the two standard adjustment points 11.3 % RH and 75.3 % RH or 20 % RH
and 80 % RH. The reference conditions are created either by using Testo
humidity adjustment set (order no. 0554 0660, only for adjustment points
11.3 %RH and 75.3 %RH) or in the humidity generator.
Deviation
In the 2-point adjustment, the deviations between the reading and the
nominal value are minimized across the entire measuring range. The 2-point
adjustment is therefore recommended for large working ranges, e.g. in drying
processes.
testo 6681
after
before
- 1.3 Commissioning 33