KBR multicomp D6 7 Series - Measuring Accuracy; Measuring Principle; Technical Data of the Multimess D4 Measuring Module

V7.00
24905_EDEBDA0272-5019-1_EN
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Appendix - multisio D2 4CI
Module-specic technical data:
Hardware inputs:
4 current measuring inputs Measuring range 0 to 6A AC
2x 4-pole
plug terminal
Permissible width
of connection lines
2.5mm
2
Measuring current input Fuse NONE!!!
Always short-circuit current
transformer terminals k
and l before opening the
circuit!
Overvoltage category CAT II
Display LED 1x operation display /
status display
Control unit Button Scan button (module bus)
8.6 Technical data of the multimess D4 measuring module
8.6.1 Measuring accuracy
Current ± 0.5 % / ± 1 digit
Voltage ± 0.5 % / ± 1 digit
Apparent power ± 1 % / ± 1 digit
Active power ± 1 % / ± 1 digit
Reactive power ± 1 % / ± 1 digit
Frequency ± 0.1 Hz / ± 1 digit
8.6.2 Measuring principle
Sampling 128 readings per period
A/D converter 12 bit
Measurement of U and I Simultaneous recording of
measured values for U and I
Update speed
(complete measuring cycle)
< 1 sec.
Harmonics calculation DFT with 128 points over one period
Frequency measurement Consumption: Voltage measured
between phase L1, L2, L3 – N