Control system for multiple input scales

Details Control system for multiple input scales Control system for multiple input scales

1992-02-10

1994-03-22

Miller, Jr., George H.

Weighing scales

Plural distinct load holders with common evaluator

G01G 1900

Patent

active

052966550

ABSTRACT:
The disclosed invention is a control system for the systematic testing, calibration, and operation of weighting apparatus having multiple inputs. The invention also provides a fault alarm.
The system utilizes a summing network of resistors and switches to isolate and test or calibrate selected load cells controlled by the system Additionally, the summing network and the isolation switches of the control system provide a means for continued operation of defective scales having substantially equal load inputs. This is accomplished by electrically isolating those load cells which have become defective.

REFERENCES:
patent: 4502555 (1985-03-01), Gower
patent: 4969112 (1990-11-01), Castle

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