EX320-EU-ENG V5.1 6/09
9
DIODE TEST
1.
Set the function switch to the
position.
2.
Insert the black test lead banana plug into the
negative
COM
jack and the red test lead
banana plug into the positive
jack.
3.
Use the MODE button to view the
icon on
the display.
4.
Touch the test probes to the diode under test.
Forward voltage will typically indicate 0.400 to
0.700V. Reverse voltage will indicate “
OL
”.
Shorted devices will indicate near 0V and an
open device will indicate “
OL
” in both polarities.
AUTO-MANUAL RANGE SELECTION
When the meter is first turned on, it automatically goes into the Auto Range mode. This
automatically selects the best range for the measurements being made and is generally
the best mode for most measurements. For measurement situations requiring that a range
be manually selected, perform the following:
1.
Press the RANGE key. The
AUTO
display indicator will turn off.
2.
Press RANGE to step through the available ranges until the desired range is selected.
3.
To exit the Manual Ranging mode and return to Auto Range, press and hold the
RANGE key for 2 seconds.
MAX MODE
Press the MAX button (the MAX icon will appear on the LCD). The meter will now only
display the highest reading during a test. Each time a higher reading is encountered, the
display will update. Press the MAX button again to exit this mode.
AUTO POWER OFF
The meter will automatically turn off after 15 minutes of inactivity. This will conserve battery
energy. To turn the meter on after an Auto Power OFF, simply turn the rotary switch to OFF
and then back to the desired setting.
