Kikusui KHA3000, Руководство по эксплуатации, Страница: 257 / 392

11
KHA3000
257
Basic Measurement
Other Measurements
The set items are also applied to the settings of "FFT Analyzer" on page 260 and "In-rush
Current Measurement" on page 262. In the case of AUTO range being selected, it is not
applied.
The peak current that can be measured is four times the range value in the 0.5 A to 10 A
ranges and 2.5 times in the 20 A and 40 A ranges.
Selecting the Current Input Terminal menu
Shunt
Select "Shunt" to use the SOURCE and LOAD terminals on the rear panel of this product.
The shunts are contained inside the L1, L2, and L3 input sections. When CTs (current
transformers) are to be used, also select "Shunt". The secondary circuits of CTs are to be
connected to the SOURCE and LOAD terminals.
Sensor( )
p. 86
Select "Sensor" to use the optional current sensors connected to the EXT CLAMP terminals
on the rear panel of this product. When "Sensor" is selected, the C icon will be shown in the I
RANGE part of the display. The EXT CLAMP terminals are provided at the L1, L2, and L3
input sections.
BNC( )
Select "BNC" to use external current shunts or other current sensors connected to the EXT
INPUT terminals on the rear panel of this product. When "BNC" is selected, the B icon will be
shown in the I RANGE part of the display. The EXT INPUT terminals are provided in the L1,
L2, and L3 input sections.
25 Prev/Next Page 3/4 Move to other sub-menu pages. -
26 _ EXT-CS Ratio (mV/A) This item is enabled when "Enable" is selected in the Current Scaling
menu. This item is enabled when "BNC" is selected in the Current Input
Terminal menu. Here, the voltage to current scaling ratio is set for the
external current sensor. The input range is 0.250 mV/A to 2500.000 mV/
A. Use the ten-key to enter the value and press the ENTER key or use
the large knob to increment or decrement the value.
The input phase (channel L1, L2 or L3) that has been selected in Ch Setting
(Scaling) will be shown at the underlined position of the menu item. 25.000 mV/A
27 Return Exit from the Input/Scaling Setting menu. –
28 Prev/Next Page 4/4 Move to other sub-menu pages. –
F key: Function key. You can also use the ESC key to return.
• If waveforms with a large crest factor are input while AUTO range is ON, the range may not
remain constant. In this case, set AUTO range to OFF.
CAUTION
• The maximum value of input current is 40 Arms or 100 Apeak, whichever smaller.
Exceeding this value may cause overheating of the current detector.
• If the current detector overheats, the OHP icon appears on the upper part of the screen.
Immediately shut down the power to the EUT to cut the input current of this product.
Restart the test after the OHP icon disappears.
C icon
See
B icon