Technical Data73Table 6-28:Data for potential-sensingoperationTable 6-29:Data for potential-freeoperation6.10.6 Multimeter ModeThis operating mode is designed for measuring steady-state signals (e.g.,also non-sinusoidal shaped signals). Measurements such as rms values,phase angle, frequency, etc. can be performed.The input signals are processed in real time without delay.Data for Potential-Sensing OperationThreshold voltage data per inputrangeSetting range Resolution100 mV1 V10 V100 V600 V± 140 mV± 1.4 V± 14 V± 140 V± 600 V2 mV20 mV200 mV2 V20 VMax. input voltage CAT II / 600 Vrms (850 V pk )CAT III/ / 300 VrmsCAT IV / 150 VrmsThreshold voltage accuracy 1per range:100 mV, 1 V, 10 V, 100 V,600 V1 Valid for positive voltage signal edge; percentage is shown in respect to each range’sfull-scale.Error:typical < 2 %, guaranteed < 4 %typical < 5 %, guaranteed < 10 %Threshold voltage hysteresis 1…5 % of the specified input inreference to each range’s full-scaleInput impedance 500 kΩ (|| 50 pF)Data for Potential-Free Operation 11 Refer to figure 5-2, "Simplified circuit diagrams of binary inputs and outputs (CMC 356standard, without option ELT-1 installed)" on page 28.Trigger criteria Logical 0: R > 80 kΩLogical 1: R < 40 kΩInput impedance 162 kΩ (|| 50 pF)
