Triplett 9320-A - Manual (Page 25)

24 Triplett Model 9320-A
9.2 Measuring AC or DC Current
Refer to Section 7.0, Preparation For Use, and Section 8.0, General Measurement
Procedures, before attempting any measurements.
WARNING!!!
Remove test leads from meter before using it to measure Current.
Select the AC or DC Current measurement mode by rotating the FUNCTION Switch
to the 400A
or 1000A position. The meter will default to the DC current
measurement mode when a current range is selected. AC mode is selected by
pressing the SELECT button (the annunciator in the LCD will change from
to
~.
Make certain that the D-Hold annunciator on the display is not visible. If it is
visible, press the D-HOLD button to turn it off.
If measuring DC Current, after setting the FUNCTION to 400A or 1000A ,
press the REL and DCA ZERO ADJ button to zero out any offset error. The
displayed reading should change to 000.X (where X can be any number), and the
REL annunciator should appear in the display. Do this before clamping the
Jaws around the conductor.
Note:
Due to the high sensitivity of the meter in the A
mode, the last digit may
change by several digits during use. It may be helpful to REL the meter after every
several minutes of use, if the most accurate low current DC measurements are
desired. Nearby magnets can affect the accuracy of the meter in this mode.
Clamp the Jaws around the one conductor to be measured. Center the conductor
within the Jaw using the Centering Marks as guides. See Figure 6.
Read the current on the display.