DL9110 / DL9118
Operating Instructions
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F1
F2
F3
F4
Buzzer
Not used
Lead Zero
Auto start
Buzzer (F1)
When enabled, the Buzzer will sound when the continuity measurement
is less than 20 ohms.
Lead Zero (F3)
The instrument can automatically compensate for the resistance of the
test leads as follows:
Fit the supplied crocodile clips to the red and black test probes and
connect the test probes firmly together. Press and hold the Lead Zero
(F3). The measured resistance of the test leads is shown in the primary
display until a beep is heard and the Lead Zero icon is shown on the
display. All subsequent measurements will automatically include
compensation for the test lead resistance until the function is disabled
by pressing function key F3.
Note: A maximum test lead resistance of 10 ohms can nulled out. If
the test lead resistance is greater than 10 ohms an error
beep will indicate that the Lead Zero function has failed and
the display icon will not be shown.
Note: For ease of use, the DL9118 will store the Lead Zero
compensation when switched off and recall this value when
next switched on. The stored value is only applicable to the
test leads used when the compensation measurement was
made. If the test leads are replaced the Lead Zero function
should be repeated using the replacement test leads.
Auto Start (F4)
When Auto start is activated the AUTO icon is shown on the display.
Continuity measurements will start automatically when the test probes
are connected to a resistance less than 20kohms.
Note: If the probes are connected to a resistance greater than
20kohms in Auto mode the test will not start.
Note: If the probes are connected to a voltage >30V ac/dc in Auto
mode the test will not start. The measured voltage will be
shown in the primary display..
The Auto Start function will automatically make measurements when
the test leads are connected to a resistance.
