MI 2892 Power Master
Technical specifications
185
Transient mode Antialiasing filter
49 kSamples/sec
Passband (-3dB): 0 ÷ 24 kHz
Stopband (-80dB): > 26 kHz
Reference temperature
23
°
C ± 2 °C
Temperature influence
25 ppm/
°
C
NOTE: Instrument has 3 internal voltage ranges. Range is chosen automatically, according to the chosen
Nominal Voltage parameter. See tables below for details.
Nominal phase (L-N) voltage: U
Nom
Voltage range
50 V ÷ 136 V (L-N)
Range 1
137 V ÷ 374 V (L-N)
Range 2
375 V ÷ 1000 V (L-N)
Range 3
Nominal phase-to-phase (L-L) voltage: U
Nom
Voltage range
50 V ÷ 235 V (L-L)
Range 1
236 V ÷ 649 V (L-L)
Range 2
650V ÷ 1730 V (L-L)
Range 3
NOTE: Assure that all voltage clips are connected during measurement and logging period. Unconnected
voltage clips are susceptible to EMI and can trigger false events. It is advisable to short them with
instrument neutral voltage input.
6.2.2
Phase Voltages
10/12 cycle phase RMS voltage: U
1Rms
,
U
2Rms
,
U
2Rms
,
U
NRms
,
AC+DC
Measuring Range
Resolution*
Accuracy
Nominal Voltage U
NOM
10% U
NOM
÷ 150% U
NOM
10 mV, 100mV
± 0.1 %
U
NOM
50 ÷ 1000 V (L-N)
* - depends on measured voltage
Half cycle RMS voltage (events, min, max): U
1Rms(1/2)
, U
2Rms(1/2)
, U
3Rms(1/2)
, U
1Min
, U
2Min
, U
3Min
, U
1Max
,
U
2Max
, U
3Max
, AC+DC
Measuring Range
Resolution*
Accuracy
Nominal Voltage U
NOM
3% U
NOM
÷ 150% U
NOM
10 mV, 100mV
± 0.2 %
U
NOM
50 ÷ 1000 V (L-N)
* - depends on measured voltage
NOTE: Voltage events measurements are based on half cycle RMS voltage.
Crest factor: CF
U1
,
CF
U2
,
CF
U3
,
CF
UN
Measuring
range
Resolution*
Accuracy
1.00 ÷ 2.50
0.01
± 5 % ·
CF
U
* - depends on measured voltage
Peak voltage: U
1Pk
, U
2Pk
, U
3Pk
, AC+DC
Measuring range
Resolution*
Accuracy
Range 1:
20.00 ÷ 255.0 Vpk
10 mV, 100 mV
± 0.5 % ·
U
Pk
Range 2:
50.0 V ÷ 510.0 Vpk
10 mV, 100 mV
± 0.5 %
·
U
Pk