Vitrek Xitron 2801, Руководство пользователя

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158 2801/2802 Power Analyzer User Guide
Temperature Effects Add 0.0065% of reading per °C when operating more
than 5°C from the calibration temperature (no effect
on relative harmonics).
Power Factor Specifications
Non-Harmonic (Watts Error) + 0.01% + (Voltage Accuracy) +
Accuracy (Current Accuracy) – (Power Accuracy).
Result is a percentage of 1.0. See charts for Watts
Error and Power Accuracy for each current input
method.
Harmonic Accuracy (Watts Error) + 0.01%. Result is a percentage of 1.0.
See chart for Watts Error.
Temperature Effects There are no temperature effects on Power Factor.
VA Specifications
Accuracy (Voltage Accuracy) + (Current Accuracy). See charts
for Current Accuracy for each current input method.
Temperature Effects Add the Voltage temperature effects and the current
temperature effects for the required input method (see
above).
Watts Specifications
DC Accuracy (DC Voltage Accuracy) + (DC Current Accuracy).
See charts for Current Accuracy for each current
input method.
AC Accuracy Add Power Accuracy (% of Watts) and Watts Error
(% of VA) and 0.01% (% of VA). See charts for
Watts Error and for Power Accuracy for each current
input method. When combining % of Watts and % of
VA, use (% of Watts) = (% of VA)/DPF or (% of
VA) = (% of Watts) * DPF. DPF is Dissipation
Power Factor, i.e. the Power Factor at the
fundamental frequency. Note that reduction of Power