Position: Weigh Feeder/Platform Scales With SFT Technologys
In this page, you will learn the the applications and features of the Weigh Feeder or Platform Scales With SFT Technologys .
The SFT exploits the dependency of a vibrating wire’s resonant frequency on its tension to measure applied loads. Through mechanical means the applied load is transmitted to the wire, causing a change in its resonant frequency from which the value of the applied load is computed by the onboard microprocessor.
A fully calibrated (linearized, spanned and temperature compensated) signal is transmitted via RS 485 serial communication to the controller. K-Tron Smart Force Transducer Catalog
D5 Platform Scale with K-SFT Technology
Application:
The D5 is part of a K-Tron loss-in-weight feeder. It is equipped with a type K-SFT6 resp. K-SFT-XP-6 weighing sensor. The SFT Smart Force Transducer, operating under compression, provides accurate, stable and reliable digital load measurement under a broad range of operating conditions.
Main Features
- Direct digital weighing
- Onboard microcontroller
- Excellent repeatability and stability
- High resolution
- High tolerance to vibration and electrical noise
- Electronic linearization
- Electronic temperature compensation
- Stiff, rugged construction
- Serial channel interface (RS 422/485)
- Addressable two-way communication
- Built-in overload protection of +100%
- Built-in underload protection of -50%
SFS-12 Platform Scale with K-SFT Technology
The SFS-12 is designed specifically for use with the K-Tron MT12 Microfeeder. It is equipped with a K-SFT sensor. The SFT (Smart Force Transducer) operates under compression and provides accurate, stable and reliable digital load measurement under a broad range of operating conditions.
- Built-in overload protection of +100%
- Built-in underload protection of -50%
- Built-in motor cable for connection to MT12 feeder
- Built-in air for connection to MT12 feeder (seal purging)
SFS-24 Platform Scale with K-SFT Technology
Application:
This SFS-24 is part of a K-Tron loss-in-weight feeder. It is equipped with a K-SFT sensor. The SFT (Smart Force Transducer), operates under compression and provides accurate, stable and reliable digital load measurement under a broad range of operating conditions.
- Built-in overload protection of +100%
- Built-in underload protection of -50%
Definition of Accuracy
Weigh feeder accuracy is a measure of how closely a feeder discharges material at the desired flow rate. A complete expression of accuracy includes measurements of repeatability and linearity. Repeatability measures the extent of discharge variability at a given flow rate. Linearity gauges the deviation of average flow rate over the feeder’s full operating range. Measurements of both repeatability and linearity are made by independently weighing a series of timed catch samples obtained from the discharge stream. Sample weights are then used to compute repeatability and linearity statistics.
