-59-
Place the update pack under the root directory of U disk before making connection to
the Analyzer. Press the Power key, then press F3 to start update on seeing prompt
information at the bottom of the screen, do not operate the Analyzer during update
process, or the Analyzer may be damaged and could not work normally. The
Analyzer will start properly if updated successfully.
If the update was failed, check the reason with the help of the prompt information on
the screen. Cancel the update by powering off the Analyzer if update was failed.
6.4 Input Connections
Check that the Analyzer setup meets the characteristics of the system under test.
This concerns: wiring configuration, nominal frequency, nominal voltage, current
clamp ratio and range.
The Analyzer has 4 BNC inputs for current clamps and 5 banana-inputs for voltages.
De-energize power systems before making connections whenever possible, always
use proper personal safety equipment.
For a 3-phase system, make the connections as shown in Fig. 2-5-1.
First put the current clamps around the conductors of phase A (L1), B (L2), C (L3)
and N (neutral). The clamps are marked with an arrow indicating the correct signal
polarity.
Next make the voltage connections: start with Ground (GND) and then in succession
N, A (L1), B (L2) and C (L3). For correct measuring results, always connect the
Ground (GND) input. Always double-check the connections.
For single phase measurements, use current input A (L1) and the voltage inputs
Ground, N (neutral) and phase A (L1). The voltage inputs A (L1) is the reference
phase for all measurements.
Before making any measurements, set the Analyzer up for the line voltage,
frequency, and wiring configuration of the power system you want to measure.
Scope Waveform and Phasor display are useful to check if voltage leads and current
clamps are connected correctly. In the vector diagram, the phase voltages and
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