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INTRODUCTION
Payload Meter III (PLMIII) measures, displays and
records the weight of material being carried by an off-
highway truck. The system generally consists of a
payload meter, a gauge display, deck-mounted lights,
and sensors. The primary sensors are four suspen-
sion pressures and an inclinometer. Other inputs
include a body up signal, brake lock signal, and
speed.
Data Summary
5208 haul cycles can be stored in memory. The fol-
lowing information is recorded for each haul cycle:
• Payload
• Operator ID number (0000-9999)
• Distance traveled loaded and empty
• The amount of time spent empty run/stop,
loading, loaded run/stop, and dumping
• Maximum speed loaded and empty with time of
day
• Average speed loaded and empty
• Empty carry-back load
• Haul-cycle, loading, dumping start time of day.
• Peak positive and peak negative frame torque
with time of day
• Peak sprung load with time of day
• Tire ton-mph for each front and average per rear
tires
The payload meter stores lifetime data that cannot be
erased. This data includes:
• Top 5 maximum payloads and time stamps.
• Top 5 positive and negative frame torque and
time stamps
• Top 5 maximum speeds and time stamps
M20008 02/05
OPERATION SECTION
Data Gathering
Windows 95/98/NT software is available to down-
load, store and view payload and fault information.
The PC software will download an entire truck fleet
into one Paradox database file. Users can query the
database by date, time, truck type and truck number
to produce reports, graphs and export the data. The
software can export the data in '.CSV' format that can
be easily imported into most spreadsheet applica-
tions. The Windows software is not compatible with
the Payload Meter II system.
It is important that each payload meter be configured
for each truck using the PC software. The information
for frame serial number and truck number is used by
the database program to organize the payload data.
In addition, the payload meter must be configured to
make calculations for the proper truck model.
Improper configuration can lead to data loss and
inaccurate payload calculations.
Payload Meter III
M20-5
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