Voltech PM1000+ - Measurement Accuracy

SPECIFICATION
Page 74 © Voltech 2010 PM1000+ Power Analyzer User Manual
7.5. MEASUREMENT ACCURACY
The table below lists the formulae for calculating the accuracy specification for each
measurement.
In the equations below:
It is assumed the waveform measured is a sine wave.
F is the frequency measured in kHz.
F
h
is the frequency of the harmonic in kHz.
h
n
is the harmonic number.
V is the voltage measured in V.
I is the current measured in A.
Θ is the phase angle in degrees (i.e. phase of the current with reference to the
voltage).
All specifications are valid 23°C ±5°C.
Temperature coefficient ±0.02% of reading / °C, 0 to 18°C, 28 to 40°C.
VOLTAGE
RANGES
900, 215, 46, 10 Vpk
Frequency range
10Hz to 1MHz
Max
600Vrms
Input Impedance
1 MOhm
Crest Factor
20
RMS
Accuracy
0.1% of Reading + 0.1% of range + 4mV +
(0.02 * F)% of reading
45-65Hz, 95-265Vrms,
THD < 5%
Accuracy
0.05% of reading + 0.05% of range
Note1
DC
Accuracy
0.1% of Reading + 0.4% of range + 5mV
Maximum DC
600Vdc
VOLTAGE +/-PEAK
Accuracy
0.5% of Reading + 0.5% of Range + (0.02
* F)% of reading
Effects of Common
Mode Voltage
100Vrms, 100kHz
<500mV
MAX VOLTAGE
OVERANGE
Peak continuous
Peak < 1 second
1500Vpk
5000Vpk