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User's Manual
EXT input interface, the screen will display the actual value of the measured current 30A when
measuring.
Application Example 2
Using the AC current clamp CTS6000 of ZLG brand to measure the current signal of 4500A, CTS6000
ratio is 0.5mV/A. Using CTS6000 to measure the 4500A current will be output 2.25V voltage, so the
sensor channel (Ext Sensor CH) should select Ext1. The current range select to Auto or 2.25V is more
appropriate, the sensor coefficient Ext2 Ratio (mV / A) is set to "0000.500", that is, 0.5mV/A, connecting
the BNC interface of the current clamp to the instrument's EXT input interface, the screen will display
the actual value of the measured current 4.5000kA when measuring.
6.4 SCALE (VT and CT Ratio)
When the amplitude of the voltage or current to be measured exceeds the maximum permissible input value
of the instrument, and the sensor channel is not satisfied with the measurement, the voltage and current to
be measured can be scaled by the voltage sensor (VT) and the current sensor (CT) in accordance with the
scaling ratio of the sensor, and the secondary output side of the voltage sensor (VT) or the current sensor (CT)
is connected to the input terminal of the instrument, and then it can be directly display the actual measured
voltage or current by setting the conversion ratio. The instrument can set the proportional constant of VT,
CT or PT.
Pressing the [Setup] key in any interface to enter the Setup menu, and press the function key SCALE below
the screen to enter the SCALE menu, and then use the [▲], [ ▼ ], [ ] or [ ] key to select or switch to the
parameter setting, as shown in the following figure.
6.4.1
SCALE State (Turn on/off scaling transformation)
Setting Steps
1.
Using the [▲] or [▼] key in the SCALE menu to select "SCALE State" (the option is fill with red
shading which means it is selected).
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