Ramsey Series 20
Belt Scale Systems
∆
The Ramsey Series 20 Belt Scale System with
Micro-Tech 2000 Series Integrators
Designed for general in-plant conveyorbelt weighing applications in the most
demanding industrial environments,
the Series 20 Belt Scale System lets
you control feed rates to crushers,
mills, screens and other processes
with incredible accuracy.
It can monitor production output and
inventory or control loadout of product,
while providing vital information for
the management and operation of
your business.
The Series 20 combines the proven
reliability of the Ramsey 10-20
Weighbridge and 60-12 Speed Sensor
with the power and versatility of the
advanced electronics of the Micro-Tech
2000 Series Integrators.
Easy Installation
Easy to install, indoors or out, on fixed
or portable conveyors, the Series 20’s
rugged construction is designed for
harsh applications including:
Series 20 Belt Scale shown with a Speed
Sensor and a Micro-Tech 2000 Integrator
• Crushing plants
• Chemical plants
• Asphalt plants
• Mines
• Cement mills
• Coal preparation plants
• Paper mills
• Gypsum plants
• Sand and gravel operations
• Coal-fired power plants
• Ore benefication processes
• Rail loadout
Weighing and Inspection
Ramsey Series 20
Belt Scale Systems
∆
60-12 Digital Belt
Speed Sensor
10-20 Weighbridge
∆
Weighbridge
Rigid and rugged, the Ramsey 10-20
Weighbridge remains permanently aligned
within the conveyor frame. The one-piece,
drop-in style 10-20 is completely assembled
at the factory and is quickly and easily
installed and aligned in the conveyor.
It is designed to provide additional stiffening
and support to minimize conveyor deflection.
Both the single and the dual idler models
offer three point suspension and employ
trunnion-type, frictionless pivots. These
sealed units are impervious to vibration,
moisture and product build-up, eliminating
the problems commonly associated with
knife edges and bearings.
Belt Speed Sensor
The Ramsey 60-12 Digital Belt Speed
Sensor is the most reliable and accurate
speed-sensing device ever developed for
belt scale service. Direct-coupling the
sensor to the conveyor tail pulley,
snubbing roll, or the large diameter lagged
return roller assures an accurate belt-travel
readout. No wheels ride on the belt, which
eliminates problems related to material
build-up and slippage.
Weighbridge Advantages
• No moving or wearing parts
• Precision, strain-gauge loadcell
applied in tension to guarantee
loadcell alignment and accuracy
• A total deflection on weight idler(s)
of less than .004 inches
• Slim profile to minimize material
build-up
• Optional counter-weighted carriages
for light belt loading applications
Belt Speed Sensor Advantages
• Rugged, cast-aluminum housing
suitable for outdoor installation
• A.C. pulse generator no brushes
to adjust or replace
Service
When you invest in Ramsey products, you’re not only buying our product,
you’re buying our commitment to service. Our pledge is to work with
you, the customer, to continuously apply new technologies and offer real
solutions to your specific needs.
We will work with you to answer your application requirement and service
questions, to service your equipment, and to support and assist you every
step of the way. No matter where you are, no matter what you need, you
can count on us!
Our service and fast parts turnaround time are just two of the things that
set us apart from the rest.
Ramsey Micro-Tech
Electronic Integrators
Integrator
The Micro-Tech 2001 and 2101 are designed
for easy operation and calibration with a
large, easy to read displays; straight-forward,
tactile-touch keyboards; and software that
prompts you, step by step, through the
proper set-up and operational procedures.
All data and user instructions are displayed
on a bright, 4x20 -character alphanumeric,
vacuum-fluorescent display. This display and
keypad are used for all interfacing and data
entry. Two model options allow you to
choose the one that’s right for your needs.
The Micro-Tech 2001 is designed for
general belt scale applications with only
basic external communication requirements.
The Micro-Tech 2101 is UL approved and
has greater digital I/O capabilities, which
can be expanded as need arises.
∆
Micro-Tech 2001 Field Mount (back)
shown with Micro-Tech 2101 Panel
Mount (front)
The 2001 contains two expansion
slots and is available in field mount
only. The 2101 contains five expansion
slots for increased input/output and is
available in panel or field mount.
Micro-Tech Advantages
• Part of Micro-Tech 2000 Series
Common operation, set-up and
calibration reduces operator training
• Digital electronics
Provide accurate, drift-free performance
• Auto zero
With a simple keystroke, the integrator can
automatically compute and install a new zero.
• Auto zero tracking
This feature initiates the auto zero function
whenever the conveyor belt runs empty.
• Auto span
Lets you use our electronic calibration
(standard on all units), or an applied test
load such as a chain, test weight, or
material load
• Calibration interval reminder
Operator selectable. Automatically reminds
you when it’s time to recalibrate.
• Linearization
Provides linear output over the operating
range. Improves the accuracy of the belt scale
over full operating range, producing the same
accuracy at 25% or at 100% of capacity.
• Numerous programmable features
Lets the user customize the integrator
to fit their individual requirements
• Selectable analog outputs
For rate, load or speed display
• Selectable analog output delay
The delay can be programmed in either
time or length of belt travel, providing you
with greater flexibility and control.
• Programmable digital outputs
Lets operator program up to three outputs
to provide various information and/or
activate ancillary equipment
• Programmable
digital inputs
Lets operator custom
program the integrator to
accept inputs and/or
instructions from
various equipment such
as alarms, printers, etc.
• Fieldbus Capabilities
We have licensed technology from Allen
Bradley permitting direct “Blue Hose”
connection to the Allen Bradley I/O network. The Micro-Tech 2000 can interface
with Modbus, Allen Bradley DF1 or Siemens
3964 protocols.
• Independent adjustments of analog output
and display damping
Lets you adjust display without affecting
sensitivity of output signal used for
control purposes
• Multi-level password protection
Provides varying levels of security for
operator access
• CE Approval
Meets or exceeds January 1996 European
market standards. Extraordinary protection
from RFI, EMI and ESD. Prevents downtime
and maintains operating integrity.
• Incline compensation
Can be used in conjunction with a slope sensor
to automatically compensate the belt scale
output for changes in conveyor angle
• Moisture compensation
Can be used in conjunction with a moisture
meter to automatically compensate the belt
scale output
• Loadout (Optional)
Controls the weight of material delivered to
trucks, rail cars, barges or ships
• Retrofitable
Easy to upgrade all types of older
Ramsey integrators and most
competitive brands
• Dual speed sensor inputs
For belt slippage detection (Model 2101)
Performance Guarantee
On factory approved installations, we
warrant that the Series 20 Belt Scale System
will weigh and totalize to a value within
±1/2% of the test value when calibrated
against a known test weight, chain, or our
standard electronic calibration.
Ramsey Micro-Tech
2000 Series
The Total Solution
We introduced the first microprocessor-based belt
scale in 1974. Since then, it has been our mission to
create the most advanced, versatile and easy-to-use
belt scales in the world.
The Micro-Tech 2000 Series represents more than
just the next generation of belt scale electronics. It
signifies a new approach to scale instrumentation,
which gives you more flexibility and vastly increases
upgrade capabilities.
Advanced
Each electronics model in the series is designed for
a specific weighing application: belt scales, weigh
feeders, impact flow meters, static weighing systems,
batch weighing systems, or loss of weight systems.
Because the Micro-Tech 2000 Series use a common
platform, you only need to become familiar with one
basic interface.
MT2301
SERIES 14 SCALE
PC Master
RS-485
MT2104
LOSS IN WEIGHT
Versatile
Operational flexibility is provided by numerous
programmable features. These features let you
customize the electronics to your specific
application needs.
Philosophy
Modern weighing equipment must be capable of
interfacing with a variety of peripheral equipment for
monitoring, supervisory control and data acquisition
purposes. To accommodate these needs, we have
designed extraordinary communication capabilities
into the Micro-Tech 2000 Series.
These communication capabilities let the Micro-Tech
2000 Series link to intelligent peripheral equipment
such as computers, programmable logic controllers,
printers, or network systems. The inputs and outputs
can be used to drive relays, motor starters, lights,
switches, or accept inputs from magnetic card readers,
micro-switches, flow/no flow switches, or pushbuttons.
PC Master
We also provide our custom designed software
package, called PC Master,
data acquisition
PC-based system that provides graphic displays of
plant operation for the automation of continuous or
discrete processes. PC Master
Ramsey equipment.
and monitoring. The PC Master is a
for supervisory control,
can be used with all
HAND
HELD
CONTROL
MT2001
MT2101
SERIES 20, SERIES 17
or IDEA SCALES
SERIES 20, SERIES 17
OR IDEA SCALES
MT2105
MT2400
MT2001
MT2101
MT2107 MT2106
MT2105
WEIGHT BELT FEEDER
IMPACT FLOW METER
Catalog No. 10.301 (Rev. 8/02)
Printed in U.S.A. SP
501 90th Avenue N.W. • Minneapolis, MN 55433 • USA
Tel: (763) 783-2500 FAX: (763) 780-2525
GLOBAL HEADQUARTERS:
http://www.thermo-wi.com
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