
DL9120 / DL9130
Operating Instructions
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5 Using the DL9120 / DL9130EV
5.1 Power On
To turn the DL9120 / DL9130EV on, simply rotate the rotary switch to the
required test position, the DL9120 / DL9130EV will display the battery
voltage for a short period of time.
Backlight Functionality (Power On with F1 pressed)
If F1 is held down when turning on the DL9120 / DL9130EV then the
backlight options will be displayed. The DL9120 / DL9130EV will display
bL
and the existing setting, pressing F1 will cycle through the available
options;
OFF
- Backlight functionality is disabled
bLUE - The backlight is always set to blue
rGb
- LCD backlight is set to blue but will change to green for
passed measurements and red for failed measurements.
Press the test key to store the displayed option.
Battery Health Check
The DL9120 / DL9130EV will automatically perform battery health checks
at power on and periodically while the DL9120 / DL9130EV is being used.
Note: When the battery symbol is flashing all tests will be inhibited
and the batteries should be replaced as described in section
8.4.
Note: The battery health check may indicate that the batteries are
healthy but stop tests with a flashing battery symbol during
testing. This is due to the different levels of current required
during different test types. The batteries should be replaced
as described in section 8.4.
5.2 Remote probe (only supplied with DL9130EV)
The remote probe can be used in place of the standard 4mm red test
lead. When the remote probe is connected, the TEST button on the probe
performs the same function as the TEST key on the DL9120 / DL9130EV.
Either TEST button/key can be used to initiate a measurement.