protech QM1020, Руководство пользователя

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5
DC VOLTAGE MEASUREMENT
1) Plug the red test lead into the positive socket.
2) Plug the black test lead into the -COM socket.
3) Set the range to the chosen DCV range position.
4) Connect the red test lead to the positive polarity of the circuit tested, and
the black lead to the negative.
5) Read the DCV A scale (as per the reference table on page 7).
AC VOLTAGE MEASUREMENT
1) Plug the red test lead into the positive socket.
2) Plug the black test lead into the -COM socket.
3) Set the range to the chosen ACV range position.
4) Connect the test leads to the circuit being tested. Polarity does not matter.
5) Read the ACV scale (as per the reference table on page 7).
AC VOLTAGE MEASUREMENT - ON OUTPUT TERMINAL
1) Plug the red test lead into the output socket.
2) Plug the black test lead into the -COM socket.
3) Set the range to the chosen range position.
4) Connect the test leads to the circuit being tested and read the scale in the
same manner as the previous ACV test.
5) This measurement is made to block the DC voltage so the AC voltage can be
read alone.
DC CURRENT MEASUREMENT
1) For measurements:
• between 50µA and 250mA - place the red test lead in the positive socket and
the black test lead into the -COM socket.
• between 250mA and 10A - place the red test lead in the DC 10A Max socket
and the black test lead into the -COM socket.
2) Set the range to the chosen DCA range position.
3) Connect the red test lead to the positive polarity of the circuit tested, and
the black lead to the negative.
4) Read the DCV A scale (as per the reference table on page 7).