Beckhoff KS3222 Documentation page 10

2 channel accurate input terminals for pt100 (rtd)

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Product overview

The KL3222 is designed for 4-wire measurement

The KL3222 is designed for 4-wire measurement. +R/-R are the current-carrying connection cables,

+RL/-RL are the currentless sense cables.

If a sensor is to be connected using 2/3 wire connection technology and the KL3202 cannot be

used, the following applies

• one or two jumper(s) per channel must be set externally, see wiring diagram

• the setting "four-wire" must be retained in R32, the 2/3-wire measurement is not calibrated by the

manufacturer

• the falsifying lead resistance should be entered in R38. The firmware subtracts this lead resis-

tance from the measured resistance in order to determine a corrected temperature. This calcula-

tion of R38 is active in all 3 modes 2/3/4-wire of R32.

Version: 2.4.0

KL3222/KS3222

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Kl3222