Specifically designed for operations where economy and ease of installation are important considerations, the Thermo Scientific Ramsey IDEA “Model 10-101” belt scale system is ideally suited for applications in processes involvingeither non-critical or lower value materials. It provides basic rate and totalization functions that can be used for control and/or production output monitoring.
Ramsey™ IDEA belt scale system is ISO-9001 certified and continues our longstanding tradition of providing high quality, reliable and innovative weighing products to the process industries. Its proprietary design is the result of many years of experience in thousands of belt scale applications around the world.
How the System Operates
This belt scale system consists of three major elements: the weighing assembly, the belt speed sensor and an electronic integrator.
The weighing assembly consists of either one or two modules, depending on conveyor width. Compact and designed to attach to the conveyor’s stringers, the modules support the weigh idler and measure the weight of material on the belt.
The speed sensor is mechanically connected to the conveyor’s large diameter tail pulley and generates a stream of pulses. Each pulse represents a unit of belt travel. The frequency of the pulse stream is proportional to belt speed.
The electronics integrate the output signals from the scale module(s) and speed sensor to arrive at a rate of material flow and the total material passed over the scale. The electronics also function as the system’s power supply and incorporate all the features that allow calibration, operation and diagnostics for the entire system.
The Scale Modules
The proprietary Ramsey IDEA belt scale is unlike any other singleidler scale. It consists of either one or two completely assembled Thermo Scientific Ramsey 10-101 scale modules. Each module contains a load cell in a pivotless assembly with factory installed and calibrated overload protection.
The system’s single module versionis for use on conveyors with belt widths up to 914 mm (36 in). This scale module mounts to a support beam that spans the conveyor stringers.
The system’s dual module version is for use on conveyors with belt widths up to 1,524 mm (60 in). The weighing assembly consists of two identical modules with right and left side steel mounting brackets. Each bracket mounts directly to the conveyor stringer with two bolts.
Each module features
- Factory installed and calibrated overload protectionPivotless design with no linkages to introduce errorsNo moving or wearing parts to cause potential maintenance problemsCompact design for easy installation and alignment
- No place for material to build up and cause measurement errors
- Identical scale modules fit on any belt width and are interchangeable
The Belt Speed Sensor
The Thermo Scientific 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 a large diameter return roller ensures accurate belt-travel readout. No wheels ride on the belt, which eliminates problems related to material build-up and slippage.
The Electronic Integrators
The Thermo Scientfic Ramsey Mini 11-101 electronic integrator is a simple, low cost, microprocessor-based integrator. It is easy to operate and has a simple, straightforward calibration procedure. It provides basic information on Rate and Total, and also has indicating LED’s for Ready, Alarm Fail, Span Cal, Zero Cal and Run. The Ramsey Mini 11-101 electronic integrator comes standard with a 4-20 mA output and is available with an optional serial output that allows the connection of the integrator to a printer.
This belt scale system is also available with the powerful and versatile advanced electronics of the Thermo Scientific Ramsey Micro-Tech 2000 series or Thermo Scientific Ramsey Micro-Tech 3000 series of electronic integrators.These integratorshave expanded features and options to address more complex requirements. For more information about the Micro-Tech series of electronic integrators, please refer to the separate catalog.
On factory-approved installations, we warrant that the Ramsey IDEA belt scale system will weigh and totalize to a value within ±1% of the test value when calibrated against a known test weight, chain, or our standard electronic calibration.
The test rate must be between 25% and 100% of the scale system’s calibrated capacity. Test duration is defined as at least three circuits or revolutions of the belt, at least 400 counts on the master totalizer, and at least six minutes running time. Its warranty is subject to the scale system being installed, operated and maintained in accordance with factory instructions.
- To be added
- Rugged, cast aluminum housing suitable for outdoor installations
- Digital pulse generator means no brushes to adjust or replace