Notes26
5
After a sufficient equalization period (at least 1.5 h): Enter reference value
and perform adjustment by clicking on Lower adjustment point or Upper
adjustment point (depending on adjustment point chosen).
6 Repeat steps 3 to 5 for the second adjustment point accordingly.
7 Click on OK to confirm entries.
For the testo 6621-A02/A03 (duct), a 2-point adjustment can also be
performed using the testo control and adjustment set (0554 0660). Please
also refer to the instruction manual for the control and adjustment set. The
reference values are entered and the adjustment is carried out in the same
way as for an adjustment with a humidity generator/air conditioning
cabinet (see steps 5 to 7).
Carrying
out
an
analog
adjustment:
Voltage supply via terminals required.
1 Click on Adjust transmitter button.
2 Choose channel.
3 Connect reference multimeter (min. 6.5 digits resolution) to the analog
output terminals of the transmitter.
4 Click on Start Wizard... button and follow the instructions issued by the P2A
Software.
5 Click on OK to confirm entries.
Viewing
a
transmitter
history:
The current history data are always displayed as stored in the instrument file.
A distinction is made between parameterization and adjustment histories.
Dates and times refer to the PC time when the P2A Software was being
used.
History data are only stored in the instrument file (PC), not in the
testo 6621.
1 Click on Transmitter history button.
2 To move between the views, click on Parameterization history or Adjustment
history.
To print the history data, click on Print.
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