Emos M0430, Instruction Manual, Page: 14 / 200

14
Continuity Test
Connect the plug of the black (negative) tipped measuring conductor
into the COM socket and the plug of the red (positive) conductor for
measuring voltage into the INPUT socket. Switch to the function
marked with
. Press the Select button repeatedly to select the
function. Connect the measuring tips to the circuit you want to
measure. The buzzer will sound if the resistance of the measured
circuit is lower than 30 Ω.
Note: Before testing, disconnect all power supply from the circuit you
want to test and thoroughly discharge all capacitors.
Resistance Measurement
Connect the plug of the black (negative) tipped measuring conductor
into the COM socket and the plug of the red (positive) conductor for
measuring voltage into the INPUT socket. Switch to the function
marked with
. Press the Select button repeatedly to select
the function. Connect the measuring tips to the object you want
to measure (resistor). The measured resistance value will appear
on the screen. If the „OL“ symbol appears on the screen, switch to
a higher range.
N ote:
1. When measuring resistances higher than 1 MΩ, it is necessary
to wait a few seconds before the measured value stabilizes.
2. If the circuit is open, the „OL“ symbol will appear, same as when
the measuring range is exceeded. Before measuring resistance,
make sure that the measured object is disconnected from power
supply and all its capacitors are fully discharged.
Diode Measurement
Connect the plug of the black (negative) measuring conductor into
the COM socket and the plug of the red (positive) measuring tip for
measuring diodes into the INPUT socket. Switch to the function
marked with
. Press the Select button repeatedly to select the
function. Connect the red measuring tip onto the diode‘s anode
and the black measuring tip onto the diode‘s cathode. Approximate
voltage in the direction of the flow of current will appear on the
screen. „OL“ will appear on the screen if the polarity is reversed.