Vers. No. 1.052 Released: 2/12/20114 Connection → Q.brixx A123: Connecting sensors4.13.1 VoltageYou can measure voltage differences of up to ±10 V. The voltagelevel (the potential) may be up to 1200 VDC.IMPORTANTVoltage differences which exceed the admissible limits produceincorrect measurement data, because the inputs are protectedagainst overvoltages and limit the input voltage.Fig. 4-55 A123, voltage measurement.4.13.2 CurrentYou need an (external) shunt resistance for the current measure-ment.Fig. 4-56 A123, current measurement using an external shuntresistance.UA In +A In –I R ext.A In+AIn–
