testo 6651 Ethernet
- 1.3 Commissioning
57
6 Close the service flap.
1.3.5.3 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.
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.
The 2-point adjustment can be performed for the adjustment points
11.3 %RH and 75.3 %RH
via P2A software (see
volume 2, chapter 3, page 113
) or
using the adjustment keys under the service flap, see description of
how to proceed below.
The 2-point adjustment for the adjustment points 20 %RH and 80 %RH is
carried out via the user menu.
A 2-point adjustment cancels any previous 1-point
adjustment.
Deviation
after
before
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