Voltech PM1000+, Руководство пользователя

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S
PECIFICATION
Page 74 © Voltech 2010 Power Analyzer User Manual
7.5.
M
EASUREMENT
A
CCURACY
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 R 0.1% of range + 4mV +
(0.02 * F)% of reading
45-65Hz, 95-265Vrms,
THD < 5%
Accuracy 0.05% of r 0.05% of range
Note1
DC Accuracy 0.1% of R 0.4% of range + 5mV
Maximum DC 600Vdc
V/-PEAK Accuracy 0.5% of R 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