43B
Service Manual
2-4
ST8571
Figure 2-1. Max. Input Voltage vs. Frequency
Maximum floating voltage
From any terminal to ground
0 to 400 Hz ................................................................................................. 600 Vrms
2.3 Function Specifications
The accuracy of all measurements is within ± (% of reading + number of counts) from
18 °C to 28 °C. For all specifications, probe specifications must be added.
2.3.1 Electrical functions
Specifications are valid for signals with a fundamental between 40 and 70 Hz.
Minimum input voltage ................................................................................. 4 V peak-peak
Minimum input current............................................................... 10 A peak-peak (1 mV/A)
Input bandwidth................................................ DC to 15 kHz (unless specified otherwise)
Volts / Amps / Hertz
Readings ..................................................................... Vrms (ac+dc), Arms (ac+dc), Hz
Voltage ranges (auto) ....................................................... 5 V; 50 V; 500 V; 1250 V
minimum step.............................................................. 1 mV; 10 mV; 100 mV; 1 V
±(1 % + 10 counts)
Current ranges (auto)..................................................50.00 A to 500.0 kA, 1250 kA
minimum step........................................................10 mA; 0.1 A; 1 A; 100 A, 1 kA
±(1 % + 10 counts)
Frequency range .........................................................................10.0 Hz to 15.0 kHz
40.0 to 70.0 Hz......................................................................... ±(0.5 % + 2 counts)
resolution.................................................................... 0.1 Hz; 1 Hz; 10 Hz; 100 Hz
CF Crest Factor range....................................................1.0 to 10.0 ±(5 % + 1 count)
Power (1 and 3 phase / 3 conductor / balanced loads)
Readings ..........................................................................Watt, VA, VAR, PF, DPF, Hz
Watt, VA, VAR ranges (auto) ..................... 250 W to 250 MW, 625 MW, 1.56 GW
when selected: total ( %r):........................................................ ±(2 % + 6 counts)
when selected: fundamental ( %f):........................................... ±(4 % + 4 counts)
DPF.......................................................................................................... 0.00 to 1.00
0.00 to 0.25........................................................................................not specified
0.25 to 0.90.................................................................................................. ± 0.04
0.90 to 1.00.................................................................................................. ± 0.03
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