Great Plains PM400 Monitor Operator - Manual (Page 51)

OPERATOR’S MANUAL
PM300, PM332, PM400 Planter Monitors
11001-1372-200606
ALARMS / 45
FAILED GROUND SPEED SENSOR (PLANTING
DETECTED WITHOUT GROUND SPEED)
The failed ground speed sensor alarm triggers when planting is detected
with no ground speed being reported. This may result from a poor or faulty
connection to the speed sensor or from a defective sensor. This is a 4-chirp
alarm which is acknowledged by pressing the Alarm Cancel key, but will
re-activate until the problem is corrected (refer to Figure 35).
Figure 35
Ground Speed Sensor Failure Display
BATTERY HI/LOW
The battery hi/low alarm triggers when battery voltage is out of range - over
voltage and under voltage. The correct power operating range is 10-16
VDC. Alarm indicates an electrical problem exists that must be corrected.
The alarm cannot be shut off and will continue to sound until corrective
action is taken (refer to Figure 36).
Figure 36
Battery Failure Display
=
0 0 . 0
GROUND SPD FAILED
1 6 . 5
HI BATTERY VOLTAGE