Title:
OPTICAL WEIGHT DISPLAY METHOD IN METERING PROCESS AND METERING BALANCE THEREOF
Document Type and Number:
Japanese Patent JPS603526
Kind Code:
A
Abstract:
An optical display is provided to guide the operator during metering of a substance to a desired value. The desired value is entered into a computer and the substance to be metered is applied to a balance. The display is in the form of a clock having a coarse and fine indicator hand. During the coarse metering at the start of the metering cycle, the coarse metering hand is rotated at a first rotational speed relative to the metering rate, i.e. the rate at which the substance is being applied to the balance. During the fine metering phase, namely when the weight on the balance approaches the desired weight, either the same or another hand moves at a rotational speed relative to the metering rate which exceeds the first rotational speed, thereby expanding the sector over which the hand moves while a given amount of the substance is being applied. This greatly facilitates the operator's control over the process and decreases the possibilities that excess weight is added.
Inventors:
ARUTSUURU BAUMAN
Application Number:
JP21703983A
Publication Date:
January 09, 1985
Filing Date:
November 15, 1983
Export Citation:
Assignee:
METTLER INSTRUMENTE AG
International Classes:
G01G23/365; G01D7/00; G01G23/18; G01G23/32; G01G23/36; (IPC1-7): G01G23/16
Attorney, Agent or Firm:
Bunji Kamada
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