Operation; Relationship Between User Menu And Mini-Din Socket Is Active - TESTO 6681 Instruction Manual

testo 6681 Ethernet
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1.4 Operation

1.4.1 Relationship between user menu and
mini-DIN socket is active
The testo 6681 can be parameterized using either the user menu or the P2A
software (see volume 2, chapter 2, page 103).
- 1.4 Operation
Important:
Deactivating the adjustment function of the testo 6615

will reduce measuring accuracy and should therefore
be restricted to the shortest possible length of time.
During the heating phase, the relay and analog

outputs, the display value and output value are
"frozen", see diagram above. Self-adjustment active
is shown in the display until it has finished. The factory
setting for self-adjustment time (incl. heating time,
calculation time, cooling time) requires 30 minutes
daily. The cycle time can be edited via the operating
menu or the P2A software.
In the factory setting, a third adjustment point

(-40 °Ctd) is approached for the testo 6615 in addition
to the 2-point adjustment.
This special adjustment can be performed again by
your Testo Service team if necessary.
The testo 6681 humidity transmitter can only be operated via
the display and keypad if the display option is available.
If the testo 6681 is connected to the P2A software, the user
menu is blocked for the duration of the communication. The
message Service plug is shown in the display of the
testo 6681. As soon as the P2A software is disconnected, the
user menu is accessible again.