D) Ac Voltage Mode "Mv; E) Dc Voltage Mode ("V ) - VOLTCRAFT VC281 TRMS Operating Instructions Manual

d) AC voltage mode "mV "

Proceed as follows to measure "mV/AC" voltages:
- Switch the DMM on and select "mV
will appear on the display.
- Press the "SELECT" button on the rotary control to switch to
"AC" mode.
- "AC", "TRMS" and "mV" will appear on the display.
- Insert the red lead into the V socket (G) and the black lead into
the COM socket (H).
- Connect the two measuring probes in parallel to the object that
you want to measure (e.g. generator or circuit).
- The measurement will appear on the display.
- After taking a measurement, remove the leads from the meas-
ured object and switch the DMM off.
The voltage measurement range "V/AC" has an input
resistance of ≤1000 MΩ. This (almost entirely) pre-
vents a load on the circuit.
e) DC voltage mode ("V
Proceed as follows to measure "DC" direct voltages:
- Switch the DMM on and select the "V
mode. "DC" and "V" will appear on the display. For lower volt-
ages up to max. 600 mV, select the "mV
range.
- Insert the red lead into the V socket (G) and the black lead into
the COM socket (H).
- Connect the two measuring probes in parallel to the object
that you want to measure (e.g. battery or circuit). Connect the
red measuring probe to the positive terminal and the black
measuring probe to the negative terminal.
- The polarity of the measurement is indicated on the display.
If "-" appears in front of a direct voltage measurement,
this indicates that the measured voltage is negative
(or that the measuring probes have been connected in
reverse).
The "V/DC" range has an input has an input resistance
of ≤10 MΩ. This (almost entirely) prevents a load on
the circuit.
- After taking a measurement, remove the leads from the meas-
ured object and switch the DMM off.
52
" mode. "DC" and "mV"
)
"
" measurement
" measurement