TESTO 6681 Instruction Manual page 64

testo 6681 Ethernet
64
 Analog outputs 1 and 2 adjusted

A precise multimeter (minimum resolution of 6.5 digits, accuracy of

100 A, e.g. Agilent 34401A) is available.

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, page 142) or enter it
via the user menu (see chapter 1.4.6.9, page 83).
3 Disconnect connections between multimeter and contacts of the
testo 6681 and close service flap.
 Adjusting analog output 3 (optional)
1 Open transmitter (see chapter 1.3.3, page 24).
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.
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 volume 2, chapter 3, page 142) or enter it
via the user menu (see chapter 1.4.6.9, page 83).
6 Remove the upper part of the transmitter, detach the cable
connections for the adjustment of the 3rd analog output and
reassemble the transmitter.
- 1.3 Commissioning
If only a simple multimeter is available, the analog outputs
may not be adjusted.
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: