Principles of Operation
KiloWate TP4 measures the electrical energy used to
lift material, subtracting the energy
lost to friction, and translating the rest directly
into tons and tons-per-hour. For this reason, it
works best on conveyors with a vertical lift where
the loaded current exceeds the empty current
by 20 percent or more (i.e. 12 amps vs. 10 amps). The
electrical connections are
hooked up to the motor leads any place between the
motor and its magnetic starter.
Accuracy
Electrical energy used is measured with less than one
percent error. Overall system accuracy
depends on the care exercised in setting the zero load
adjustment.
Accuracy is + or – 3 percent
under normal operation conditions.
Maintenance
There are no moving parts on the conveyor. The KiloWate
TP4 is rugged, simple, and dependable. Design parameters
for the scale focus on the time-tested KiloWate 230
series
that has served the quarry industry for over three
decades.
How it Works
As a conveyor goes from empty to full load condition,
the motor will consume more power.
Power can be measured in kilowatts and is related
to tonnage. During a production day, the
feed rate will range from a full belt to a trickle.
The redesigned KiloWate TP4 utilizes this
curve to report tonnage accurately at 100 percent
of full capacity, at no load, and all points
between.
Installation
Installation of a KiloWate TP4 Belt Scale is a
simple electrical connection between the motor
and the starter. Nothing is connected to the
conveyor belt and there are no moving parts.
Features
Bright LCD displays
Rate meter reading directly in tons per hour
Weatherproof enclosure
Universal Shock Absorbent Mounting System to
permit installation almost anywhere
Operation limitations:
Motor HP: 1 HP to 1000 HP
Voltage: 440 standard, 220 or 550 available
Unit can be used with various size conveyor belt
widths
Options: Can be modified to monitor from 1 to
4 conveyor belts simultaneously.
Data can be sent using RS-422 to a computer.
Specifications
Accuracy + or - 3 percent
Power supply 12 VDC
Shipping weight approx. 20 pounds
Made, with pride, in the USA and warranted for
a full 12 months
