EX810 Datasheet, PDF (7/13 Pages) Extech Instruments Corporation. – 1000 Amp Clamp Meters with IR Thermometer

Operation
NOTES: Read and understand all Warning and Caution statements in this operation
manual prior to using this meter. Set the function select switch to the OFF position when
the meter is not in use.
AC/DC Current Measurements (DC Current on Model EX830 only)
WARNING: Ensure that the test leads are disconnected from the meter before making
current clamp measurements.
1. Set the Function switch to the AAC
or ADC range
2. Press the trigger to open jaw.
Fully enclose only one conductor.
For optimum results, center the
conductor in the jaw.
3. The clamp meter LCD will display
the reading.
DCA ZERO (EX830 only)
The DC Zero feature removes offset
values and improves accuracy for DC
current measurements. To perform a
zero, select ADC and with no
conductor in the jaw:
1. Press the DC ZERO button to
Correct
Incorrect
zero the display. “ZERO” will appear in the display. The offset value is now stored and
removed from all measurements.
2. To view the stored value, press the DC ZERO button. “ZERO” will flash and the
stored value will be displayed.
3. To exit this mode, press and Hold the ZERO button until “ZERO” is no longer in the
display.
AC/DC Voltage Measurements
1. Insert the black test lead into the negative COM terminal and the
red test lead into the positive V terminal.
2. Set the function switch to the VAC or VDC position.
3. Use the MODE button to select AC or DC Voltage (EX830 only).
4. Connect the test leads in parallel to the circuit under test.
5. Read the voltage measurement on the LCD display.
7
EX800 Series Version 3.2 8/07