MI 2893 / MI 2892 / MI 2885
Measurements
221
Note: Overall current accuracy (as percent of measured value), is provided as guideline. For exact
measuring range and accuracy please check user manual of related current clamps. Overall accuracy is
calculated as:
2
2
acy
ClampAccur
Accuracy
Instrument
1,15
uracy
OverallAcc
Crest factor CF
Ip
p: [1, 2, 3, 4, N], AC+DC
Measuring range
Resolution
Accuracy
1.00 ÷ 10.00
0.01
± 5 % · CF
I
Accuracy of 10/12 cycle RMS voltage measured on current input
Measuring range (Intrinsic instrument accuracy)
Accuracy
Range 1: 10.0 mV
RMS
÷ 300.0 mV
RMS
± 0.25 % · U
RMS
Range 2: 50.0 mV
RMS
÷ 3.000 V
RMS
Measuring range
Accuracy
Crest factor
Range 1: 10.0 mV
RMS
÷ 150.0 mV
RMS
± 0.25 % · U
RMS
3.0
Range 2: 50.0 mV
RMS
÷ 1.500 V
RMS
U
RMS
– RMS voltage measured on current input
Accuracy of half cycle RMS voltage measured on current input
Measuring range (Intrinsic instrument accuracy)
Accuracy
Range 1: 10.0 mV
RMS
÷ 300.0 mV
RMS
± 0.5 % · U
RMS
Range 2: 50.0 mV
RMS
÷ 3.000 V
RMS
± 0.5 % · U
RMS
Measuring range (Intrinsic instrument accuracy)
Accuracy
Crest factor
Range 1: 10.0 mV
RMS
÷ 150.0 mV
RMS
± 0.5 % · U
RMS
3.0
Range 2: 50.0 mV
RMS
÷ 1.500 V
RMS
± 0.5 % · U
RMS
6.2.5
Frequency
Measuring range
Resolution
Accuracy
50 Hz system frequency: 42.500 Hz ÷ 57.500 Hz
60 Hz system frequency: 51.000 Hz ÷ 69.000 Hz
1 mHz
± 10 mHz
400 Hz system frequency: 335.0 Hz ÷ 465.0 Hz
10 mHz
± 100 mHz
6.2.6
Flickers
Flicker type
Measuring range
Resolution
Accuracy*
P
inst
0.200 ÷ 10.000
0.001
± 5 %
P
inst
P
st
0.200 ÷ 10.000
± 5 %
P
st
P
lt
0.200 ÷ 10.000
± 5 %
P
lt
6.2.7
Transients
Type
Measuring range
Resolution
Accuracy
Voltage Transients
± 6 kV
5V
± 5 %
Current Transients
Depends on the selected current clamp
± 10 %
Note: Overall current transient accuracy (as percent of measured value), is provided as guideline. For
exact measuring range and accuracy please check user manual of related current clamps.
