USER HANDBOOK 2.0 | DC20XX, ET20XX, ECC21XX SLIM
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
Dialog-Controller-DC20XX_EN.docx
2-wire measurement
Resistance can result in a measurement error, which in the case of long cables with a small cross-section can
be up to 10°. If the temperature of the sensor is known, this deviation can be subtracted by the software
automatically and compensated (alternatively, use 3-wire measurement).
3-wire measurement
The nearest AI (U) connection is used to compensate the resistance in the cable. It can only be used directly
in conjunction with the following AI (U/T) channel. Channels 1 and 2, and also channels 3 and 4 each form a
pair for 3-wire measurement.
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