KYORITSU 2009A - Manual (Page 26)

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②Slide the terminal cover to the right to disclose the OUTPUT terminal
and insert the output plug into the terminal. Make connection to the
recording device.
③When the plug is inserted into the output terminal, auto-range function
is cleared.
Set the range depending on the state of Data Hold Switch.
Data Hold Switch OFF 400A range
Data Hold Switch ON 2000A range
Note：After measurement, be sure to return Data Hold Switch to OFF
position.
④Set the function selector switch to the desired position (ACA or DCA)
and follow appropriate measurement instructions.
NOTE
● During current measurement, keep the transformer jaws fully
closed. Otherwise, accurate measurement cannot be made. The
maximum measurable conductor size is approx. 55mm in
diameter.
● Zero adjustment is not necessary on AC current range.
● On DC current range, the Zero Adjust/Reset button may not
completely zero adjust the output voltage from the OUTPUT
terminal. In this case, make zero adjustment on the recording
device.
● Connecting the plug to the OUTPUT terminal disables the Sleep
function. The function is enabled on removing the plug from the
terminal.