DVM94
V. 02 – 02/09/2016
12
©Velleman nv
10.2
AC VOLTAGE MEASUREMENT
1.
Connect the red test lead to the "V
Ω
mA" jack and the black test lead to
the "COM" jack.
2.
Set the rotary switch in the appropriate V~ position.
3.
Connect the test leads to the source to be measured.
4.
Read the voltage value on the LCD display.
11.
Current Measurement
Do not measure circuits that may contain voltages > 600 VDC or
> 600 VAC
Use extreme caution when measuring voltages higher than 60 VDC
or 30 VAC rms.
Always place your fingers behind the protective edges of the test
probes while measuring!
1.
Connect the red test lead to the "V
Ω
mA" jack and the black test lead to
the "COM" jack (switch the red lead to the "10A" jack for
measurements between 200 mA and 10 A).
2.
Set the rotary switch (DCA) in the desired A~ or A
position.
3.
Open the circuit in which the current is to be measured and connect
the test leads to the circuit
IN SERIES
.
4.
Read the current value and the polarity of the red lead connection on
the LCD display
12.
Resistance Measurement
Do not conduct resistance measurements on live circuits. Make sure
all capacitors in the circuit are depleted.
1.
Connect the red test lead to the "V
Ω
mA" jack and the black test lead to
the "COM" jack (the red lead has a positive polarity "+").
2.
Set the rotary switch in the appropriate "
Ω
" range position.
3.
Connect the test leads to the resistor to be measured and read the
LCD display.
4.
If the resistance being measured is connected to a circuit, turn off the
power and discharge all capacitors before applying the test probes.
