Mastech MS2108 - 4.11 Measuring DC Current; DC Current Measurement Process

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4.14 Measuring Frequency
4.14.1 By A range (from current clamp):
WARNING
Beware of Electrocution.
Ensure that the test leads are disconnected
from the meter before making current clamp
measurements.
4.14.1.1 Set the rotary selector to the A range
(A~ or A) position.
4.14.1.2 Press the trigger to open jaw. Fully enclose
 only one conductor.
4.14.1.3 Press the “Hz/%” to switch to the frequency
measurement.
4.14.1.4 Take the reading on the LCD.
Note:
1) Do not put more than one cable into the jaw during
test, otherwise incorrect test value might be obtained.
2) Frequency test range is 10Hz - 1kHz.‘00.0’ will be
displayed on LCD if the test frequency is lower than
10.0 Hz. It is possible to test the frequency which is
higher than 1 kHz but the tolerance of the test result
can not be ensure.
3)“”means the maximum input current is
600A rms AC.
MAX
MIN
RAN
HOLD
B.L
Hz/%
SEL
COM
INPUT
V
MIN 600A
CAT III 600V
OFF
A
A
OFF
Ω
INRUSH
DIGITALCLAMP
9V
Hz
AUTO
MAN U
MAX MIN
ZER O
°C°F%
μmVA
nμmF
MkΩ
INR USH
TRM S