MODEL 9DP-1 Operator’s Manual
Ludlum Measurements, Inc. 52 December 2015
depletes, each succeeding cell beginning on the right going left, changes its color
from green to the screen background color, signifying it has emptied. When only
two cells remain (40% of battery life), they both turn to yellow to warn the user
that time is getting short. When the power level reaches its last segment (20%),
the last remaining cell segment will turn from yellow to red. Users are advised to
begin shut down fairly soon at this point.
In this final state, once the power level goes below the necessary voltage, the
instrument will alert the operator and then automatically shut itself down. This
precautionary measure ensures all measurement data and operating parameters
are stored properly prior to losing power.