TESTO 6681 Profibus, Инструкция по эксплуатации

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testo 6681
- 1.3 Commissioning 37

Analog outputs 1 and 2 adjusted

A precise multimeter (minimum resolution of 6.5 digits, accuracy of
100
µ
A, e.g. Agilent 34401A) is available.
If only a simple multimeter is available, the analog outputs
may not be adjusted.

The service flap is open.
1 Connect the inputs of the multimeter with the contacts (2) and (3) for
channel 1 or with contacts (7) and (8) for channel 2.
2 Transfer the reference analog value measured with the multimeter to
the P2A software (see
volume 2, chapter
3
)
or enter it via the user
menu (see
chapter 1.4.6.9
).
3 Disconnect connections between multimeter and contacts of the
testo 6681 and close service flap.

Adjusting analog output 3 (optional)
If the optional third analog output is to be adjusted, a cable
connection to measure the analog value must be installed.
Do this by proceeding as follows:
1 Open transmitter (see
chapter 1.3.2)
.
2
Connect measuring cable to the terminals of the third analog output
and guide through the cable coupling and out of the transmitter.
3 Reassemble upper part of transmitter (see
chapter 1.3.2.6
).
4
Connect cable ends to the inputs of the multimeter.
5 Transfer the reference analog value measured with the multimeter to
the P2A software (see v
olume 2, chapter
3
)
or enter it via the user
menu (see
chapter 1.4.6.9
).
6
Remove the upper part of the transmitter, detach the cable
connections for the adjustment of the 3rd analog output and
reassemble the transmitter.