Velleman DVM66 Operation manual - page 9
VELLEMAN GB
8
2.8 Input Jacks
This meter has four input jacks that are protected against overload to the limits
shown in the table. During use, connect the black test lead to the COM jack and
the red test lead as below :
Function
Red Lead Connection
Input Limits
DCV/ACV
V/
Ω
/F
1000V DC or 750V rms AC
Ω
/
/
V/
Ω
/F
250V DC or rms AC
CAP.
V/
Ω
/F
250V DC or rms AC
FREQ.
V/
Ω
/F
250V DC or rms AC
mA
mA
400mA DC or rms AC
A
A
10A DC or rms AC
mA and A ranges are protected by fuses
3. Operating Instruction
3.1 Measuring voltage
1. Connect the black test lead to the COM jack and the red test lead to the V/
Ω
/F
jack.
2. Set the function switch at V or V range to be used and connect test leads
across the source or load under measurement.
3. Read LCD display. The polarity of red connection will be indicated when
making a DC measurement.
3.2 Measuring current
1. Connect the black test lead to the COM jack and the red test lead to the mA jack for
a maximum of 400mA. For a maximum of 10A, move the red lead to the A jack.
2. Set the function switch at mA or A range to be used and push AC-DC button
to select DCA or ACA measuring mode.
3. Connect test leads in series with the load in which the current is to be
measured.
4. Read LCD display. The polarity of red lead connection will be indicated
when making a DC measurement.