Circuit-test DCL-420, Руководство пользователя

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3. DC CURRENT MEASUREMENT
WARNING
: DO NOT BREAK OR OPEN THE DC LINE BEING MEASURED. WHEN
MEASURING DC CURRENT THIS UNIT IS DESIGNED TO CLAMP AROUND ONE OF THE DC
LINES. DO NOT ATTEMPT TO MEASURE CURRENT USING THE TEST LEADS. DO NOT PUT
MORE THAN ONE WIRE INSIDE THE CLAMP JAW. DISCONNECT THE TEST LEADS BEFORE
TAKING ANY MEASUREMENTS.
➔
Turn off power to the DC line being measured.
➔
Press the Power button on the clamp meter.
➔
Press A pushbutton once. ʻACʼ and ʻAʼ will appear on the display.
➔
Press AC/DC pushbutton once, ʻDCʼ and ʻAʼ will now appear on the
display.
➔
If the display indicates reading other than ʻ0000ʼ, use a small screw-
driver and adjust the Zero Adjust control until the display reads ʻ0000ʼ.
➔
Press the trigger to open the clamp jaws and close around one insu-
lated conductor of the DC line being measured. Ensure that the jaws
are completely closed and do not make any contact with the DC line.
For maximum accuracy it is recommended that the conductor passes
through the centre of the clamp head opening (use the centering marks
on the jaws as a guide).
➔
Now apply power to the DC line being measured.
➔
Read the displayed current indicated with proper decimal point and
symbols.
➔
Open clamp jaws and release.
4. AC CURRENT MEASUREMENT
WARNING:
DO NOT BREAK OR OPEN THE AC LINE BEING MEASURED. WHEN
MEASURING AC CURRENT THIS UNIT IS DESIGNED TO CLAMP AROUND ONE OF THE AC
LINES. DO NOT ATTEMPT TO MEASURE CURRENT USING THE TEST LEADS. DO NOT PUT
MORE THAN ONE WIRE INSIDE THE CLAMP JAW. DISCONNECT THE TEST LEADS BEFORE
TAKING ANY MEASUREMENTS.
➔
Turn off power to the AC line being measured.
➔
Press the Power button on the clamp meter.
➔
Press A pushbutton once. ʻACʼ and ʻAʼ will appear on the display.
➔
Press the trigger to open the clamp jaws and close around one insu-
lated conductor of the AC line being measured. Ensure that the jaws
are completely closed and do not make any contact with the AC line.