CEM DT-9560, Руководство по эксплуатации, Страница: 13 / 28

RANGE
MODE
REL
Hz%
HOLD
MAX
MIN
OFF
Ω
CAP
mA
Auto Power Off
10A
mA
μ A
10A
V
FUSED
MAX
800mA
COM
CAT IV 600V
CAT III 1000V
Hz
%
Hz%
Hz%
Hz%
Hz%
mV
Hz%
True RMS Autoranging Digital Multimeter
V
VFD
VFD
V Ω CAP
Hz%
30 sec MAX
every 15 min
13
True RMS Autoranging Digital Multimeter
4-5.AC Current (Frequency, Duty Cycle) Measurements
CAUTION:
Do not make 10A current measurements for longer than 30 seconds. Exceeding 30
seconds may cause damage to the meter and/or the test leads.
1. Insert the black test lead banana plug into the negative
COM jack.
2. For current measurements up to 6000µA AC , set the function switch to the µA AC/DC position
and insert the red test lead banana plug into the µA/mA jack.
3. For current measurements up to 600mA AC , set the function switch to the mA AC/DC position
and insert the red test lead banana plug into the µA/mA jack.
4. For current measurements up to 10A AC , set the function switch to the 10A AC/DC position
and insert the red test lead banana plug into the 10A jack.
5. Press the MODE button to indicate “ AC ” on the display.
6. Remove power from the circuit under test, then open up the circuit at the point where you wish
to measure current.
7. Touch the black test probe tip to the neutral side of the circuit; Touch the red test probe tip to
the “hot” side of the circuit.
8. Apply power to the circuit.
9. Read the current in the display.
10. Press the
Hz/% button to indicate “ Hz ”.
11. Read the frequency in the display.
12. Press the
Hz/% button again to indicate
“ % ”.
13. Read the % duty cycle in the display.
14. Press the
Hz/% button to return to
current measurement.