4 Transmitter
53
4.
Disconnect the adjustment adapter (
2
) from the service
interface (
5
).
5.
Close the service flap.
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4.3.4.9.
2-point adjustment (humidity/temperature)
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. The reference conditions are created either by
using testo adjustment salt pots (order no. 0554 0660) 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.
The 2-point adjustment can be performed
•
via P2A software (see volume 2, 2-point adjustment, page 154)
or
•
using the adjustment keys under the service flap, see
description of how to proceed below.
A previous 1-point adjustment is undone during a 2-point
adjustment.
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Adjustment with the standard testo adjustment salt pots is
not suitable for the testo 6614 (heated for high-humidity
applications) and testo 6615 (trace humidity) probes.
The reference conditions should be generated in a humidity
generator to adjust these probes. In addition, these probes
can also be adjusted at a third adjustment point by Testo
Service.
•
testo 6614: third adjustment point at 90 % RH
•
testo 6615: third adjustment point at -40 °Ctd/-40 °Ftd
1.800.561.8187
www.
Testo-Direct
.ca
All manuals and user guides at all-guides.com
