MODEL 9DP-1 Operator’s Manual
Ludlum Measurements, Inc. 51 December 2015
8.1 Battery Installation
1. Find the battery access door located at the bottom of the Dimension
Portable Series instrument.
2. The battery cover is held on by a single screw. Give the screw a
quarter of a turn with a screwdriver, and the door will pop up.
3. Lift the cover up and remove it.
4. Place the battery pack inside the battery compartment by matching the
four connectors on the pack to the contacts inside, making contact
once in the compartment. Then snap the other half of the pack inside.
5. Once the battery pack is snug, replace the cover and turn the screw a
quarter of a turn to fasten.
Note: Allow the instrument to sit with batteries installed for at least an
hour before use. This will give the instrument time to charge.
8.2 Battery Test
Even when the instrument is turned off, it continues to draw a very miniscule
amount of power in order to continually monitor the control panel while waiting
for the power-on command. When fully charged, the battery pack in the OFF
state will last for several months before needing to be recharged.
A quick check of the battery status can be made by pressing the Power On
pushbutton momentarily (see furthest left-hand button on the control panel).
The screen should wake up after about four seconds and go through two start-up
views before finally settling onto the measurement view. If upon attempting
power start-up the LCD remains blank, proceed with charging the instrument as
all the power may have already been drained.
Once the measurement view is presented, a battery icon on the lower, left-hand
part of the screen is displayed. The battery icon is segmented into five parts with
each segment representing 20% of the battery life. The depletion rate will be
according to the backlighting and USB consumption as explained earlier in this
section. With experience under your operating conditions, you will begin to have
a good idea about how long the battery charges last. Dividing that time period by
5 will then approximate the time per cell.
Color coding is employed to indicate battery level. With all five cells colored
green, the battery is indicating a full charge or near full charge. As the battery
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