Kikusui KHA3000, Руководство по эксплуатации, Страница: 108 / 392

108
KHA3000
61000-3-2
Adjusting the phase difference between voltage and current
When using external current sensors that are connected to the EXT INPUT (BNC) terminals
on the rear panel, the phase difference between the current detected by the current sensor
and the voltage measured by this product at a voltage measurement point can be adjusted.
For the phase adjustment, pure resistors are connected in place of the EUT.
The adjustment is made by observing the power factor shown on the screen of this product.
The adjustment is made separately for each phase. Incorrect adjustment can adversely affect
the measurement of real power.
The components to be prepared by the customer
●
Resistance Load
Non-inductive resistors are required. Be sure to use resistors of which power rating is as
close as to the power consumption of the EUT.
Connecting Resistance Loads
Connect pure resistors in place of the EUT.
1
Turn off the output of the AC power supply.
2
Connect the resistance load(s) in place of the EUT.
3
Turn on the output of the AC power supply.
Set the output voltage to the rated voltage of the EUT.
Setting of Observation Display (HA- Observation/Analysis
Display)
Observe the power factor value on the list display.
1
Press the VIEW key.
The HA-Observation/Analysis display will open.
2
Press the F6 key to select Page 1/2 of the menu.
p. 168
3
Press the F1 key for the list display type.
A list of measured values will be presented.
4
Press the F1 key to select View Items.
A sub-menu is displayed.
5
Turn the small knob to select Power Factor.
6
Press the ENTER key to save the selection.
The Power Factor check box will be checked. You can freely select other view items at
the same time.
WARNING
• This work has a risk of electric shock. For the AC power supply used for the
measurement circuit, be sure to disconnect the power cord from the outlet, turn off
the switch on the switchboard to which the power cord is connected, and turn off the
POWER switch.
See