Extech Instruments EX710 Bedienungsanleitung Seite 9

Operation
NOTES: R eadandunderstand all WarningandCautionstatements in thisoperation manual p riorto using
thismeter.Setthe functionselectswitchto theOFFposition whenthe meteris not in use.
ACIDC Current Measurements (DC Current on Model EX730 only)
WARNING:Ensurethatthe testleadsaredisconnected f rom themeterbeforemakingcurrentclamp
measurements.
I. Set the Function switch to the 800A, 400A,
or 40A range. If the approx. range of the
measurement is not known, select the
highest range then move to the lower
ranges if necessary.
2. Use the MODE button to select AC or DC.
(EX730 only).
Press the DC ZERO button to zero the
3.
meter display.
Press the trigger to open jaw. Fully enclose
4.
only one conductor. For optimum results,
center the conductor in the jaw.
The clamp meter LCD will display the
5.
reading.
AC/DC Voltage Measurements
1. Insert the black test lead into the negative COM terminal and
the red test lead into the positive V.Q.CAP.TEMP.Hz.
terminal.
2. Set the function switch to the V Hz position.
3. use the MODE button to select AC or DC Voltage.
4. Connect the test leads in parallel to the circuit under test.
Read the voltage measurementon the LCD display.
5.
Correct Incorrect
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Resistance Measurements
Insert the black test lead into the negative COM terminal and the red
1.
test lead into the
2. Set the function switch to the Q position.
Touch the test probe tips across the circuit or component under test.
3.
Read the resistance on the LCD display.
4.
Capacitance Measurements
WARNING: Toavoid electric shock, d ischarge t hecapacitor under t estbefore measuring.
Set the function switch to the CAP position.
1.
Insertthe black test lead banana plug into the negative COM jack and
2.
the red test lead banana plug into the
positive jack.
Touch the test probe tips across the part under test. If "dlSC" appears
3.
in the display, remove and discharge the component.
Read the capacitance value in the display.
4.
The display will indicate the proper decimal point and value.
5.
Note: For very large values of capacitance measurement it can take
several minutes before the final reading stabilizes.
Frequency Measurements
Insert the black test lead banana plug into the negative COM jack
I.
and the red test lead banana plug into the V.Q.CAP.TEMP.Hz.
positive jack.
Set the function switch to the V Hz Position.
2.
Press and hold the MODE button to select the Frequency (Hz)
3.
function. "k Hz" will appear in the display.
Touch the test probe tips across the patt under test.
4.
Read the Frequency value on the display.
5.
The display will indicate the proper decimal point and value.
6.
Press and hold the MODE button again to return to the voltage mode.
7.
positive terminal.
CAP
Hz
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