Mastech MS8221C User Manual

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4.12 Measuring AC Current
Note:
• When only the figure 'OL' is displayed, it indicates
overrange situation and the higher range has to be
selected.
When the value scale to be measured is unknown
beforehand, set the range selector at the highest
position.
means the socket of INPUT maximum current is
200mA, over current will destroy the fuse. 10A's
maximum current is 10A, no fuse protection.
•
• “ ”
Shut down the power of the tested circuit, then
connect the meter with the circuit for
measurement.
WARNING
4.12.1 Connect the black test lead to the COM jack and
the red test lead to the INPUT jack for a
maximum of 200mA current. For a maximum of
10A, move the red lead to the 10A jack.
4.12.2 Set the transform switch at the desired µA,
mA or A range position.
4.12.3 Put down the 'FUNC.' to enter the AC
measurement. Auto range or manual range can
be transformed by putting the 'RANGE'.
4.12.4 Connect test leads in series with the load under
measurement.
4.12.5 You can get reading from LCD.
Note:
• When only the figure 'OL' is displayed, it indicates
overrange situation and the higher range has to
be selected.
When the value scale to be measured is unknown
beforehand, set the range selector at the highest
position.
‘ ’ means the socket of INPUT maximum current
is 200mA, over current will destroy the fuse. 10A's
maximum current is 10A, no fuse protection.
•
•
4.13 DC Current Measuring (With Clamp, optional)
4.13.1 Connect the black output lead of clamp to the
COM jack and the red one to the INPUT jack
of the meter.
4.13.2 Set the transform switch at the range position.
4.13.3 Put down the 'FUNC.' to enter the DC
measurement. Auto range or manual range can
be transformed by putting the 'RANGE'.
4.13.4 Clamp the circuit under measured.
4.13.5 You can get reading from LCD. The polarity of
red output lead will be indicated.
Note:
• Select the DC clamp to measure the DC current.

Mastech MS8221C Specifications

General

Brand	Mastech
Model	MS8221C
Category	Multimeter
Language	English