Case 2050M Operator's Manual page 68

Diesel Exhaust Fluid (DEF) level gauge
The monitor screen is located in the center
of the console. The DEF level bar gauge
(5) indicates the level of diesel exhaust
fluid in the DEF tank. When all bars are
illuminated, the tank is full. Illuminated bars
indicate the level of fluid remaining in the
DEF tank. When the tank is at 5–10 % of
tank volume, the warning system will flash
and/or will flash and sound an audible alarm
dependent upon DEF levels.
NOTICE: If the DEF system becomes completely empty,
the engine will lose significant power.
Gauge indication
6–10 %
5 % and below
Empty
3 - CONTROLS AND INSTRUMENTS
Condition
No engine power loss Caution (yellow)
Moderate engine
power loss
Severe engine power
loss
DEF level gauge
Master indicator
Caution (yellow)
Stop (red)
3-20
RAIL12DOZ0224AA
Gauge status
Flashes
Flashes for 4
seconds, then steady
Flashes continuously Continuous
8
Alarm status
None
Continuous