Mastech M9912 AC/DC Clamp Meter

OPERATOR’S INSTRUCTION MANUAL - Page 8

For M9912. Also, The document are for others Mastech models: MS9912CBGLO

PDF File Manual, 15 pages, Read Online | Download pdf file

M9912 photo
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-5-
OPERATING INSTRUCTIONS
DC VOLTAGE MEASUREMENT
1.
2.
3.
4.
Connect the red test lead to the “VHz jack and the black lead to the
“COM” jack.
Set rotary switch at desired V position.
Connect test leads across the source or load being measured.
Read voltage value on the LCD display along with the polarity of the red
lead connection.
AC VOLTAGE MEASUREMENT
1.
2.
3.
4.
Connect the red test lead to “VHz jack and the black test lead to the
“COM” jack.
Set the rotary switch at desired V~ position.
Connect test leads across the source or load being measured.
Read voltage value on the LCD display.
AC CURRENT MEASUREMENT
1.
2.
3.
Set the rotary switch at desired 300A or 1000A position. Push Func.
button to 300A~ or 1000A~ range.
Press the trigger to open transformer jaw and to clamp one conductor
only, making sure that the jaw is firmly closed around the conductor.
Read current value on LCD display.
DC CURRENT MEASUREMENT
1.
2.
3.
4.
Set the rotary switch at desired 300A or 1000A position.
Adjusting the DCA ZERO knob until the display show “0”, when the
meter does not measurement before.
Press the trigger to open transformer jaw and to clamp one conductor
only, making sure that the jaw is firmly closed around the conductor.
Read current value on LCD display.
NOTE:
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