11. Resistance measurement
n
n
n
Verify that the device under test is electrically dead. External
voltages would falsify the measured result!
Set the function selector switch (6) to
“ W ”
.
Connect the device under test as shown.
Zero adjustment on the 660
W
measuring range
When measuring small resistance values on the 660
W
range, you can
eliminate the resistance of the leads and contact resistance by REL
function.
n
Connect the test leads to the multimeter and join the free ends.
n
Also “00.00” (+1digit) will displayed on main display & the
resistance measured at the instance the push buttons were pressed
is displayed on sub display & used as reference value.
n
It is automatically deducted from the values measured there after.
12. Continuity test and Diode test
n
Verify that the device under test is electrically dead. External
voltages would falsify the measured results!
12.1 Continuity test
n
Set the function selector switch (6) to “
W
” then press the yellow
multi-function push button (5).The multimeter acknowledges turn-
ON with a sound signal.
n
At the same time, (18) appears on the LCD & “OL” will
displayed on main display.
n
The sound signal is generated whenever the reading is less than
30
W.
12.2 Diode test
n
Set the function selector switch (6) to
“
W
”
then press the yellow
multi-function push button (5) twice. The multimeter acknowledges
turn-ON with a sound signal.
n
At the same time, (18) appears on the LCD & “OL” will
displayed on main display.
n
The multimeter displays the forward voltage in Volts.
13
The REL function can be cleared
n
By pressing and holding PEAK push button and then pressing AUTO/MAN
key. This is acknowledged by sound signals.
n
By switching the multimeter off.
n
Press and hold PEAK(2) and press the AUTO/MAN(4) pushbutton.
The meter enter into the “REL” mode , “REL” symbol will displayed
on to the LCD.
