Multi-range load cell weighing instrument
First Claim
1. A multi-range load cell weighing instrument comprising:
- means for supporting an article to be weighed;
a low range load cell having a high accuracy weighing range and including means for outputting a first signal in response to a weight on said supporting means;
a high range load cell having a high load weighing range which is higher than said high accuracy weighing range, said high range load cell including means for outputting a second signal in response to a weight on said supporting means;
means for receiving said first and second signals and for outputting a weight signal as a function of one of said first and second signals, wherein said means for receiving includes means for outputting said weight signal as a function of said first signal for any said weight within said weighing range of said low range load cell, whereby high accuracy weighing is achieved;
means for counting a number of repetitions of receiving said first and second signals by said means for receiving; and
means for outputting a counting signal as a function of said received repetition signals, whereby said instrument may be used as a counting instrument.
1 Assignment
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Accused Products
Abstract
Means for supporting an article to be weighed, a low range load cell having a high accuracy weighing range and including means for outputting a first signal in response to a weight on the supporting means and a high range load cell having a high load weighing range which is higher than the high accuracy weighing range, the high range load cell including means for outputting a second signal in response to a weight on the supporting means, are provided. Means are also provided for receiving the first and second signals and for outputting a weight signal as a function of one of the first and second signals, the means for receiving including means for outputting the weight signal as a function of the first signal for any weight within the weighing range of the low range load cell, whereby high accuracy weighing is achieved. The instrument includes means for counting a number of weighings and for outputting a counting signal as a function of the first and second signals received as a result of repeated weighings, whereby the instrument can be used as a counting instrument. The weight can be displayed in either pound or kilogram units, with a preferences given for kilogram units.
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Citations
6 Claims
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1. A multi-range load cell weighing instrument comprising:
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means for supporting an article to be weighed; a low range load cell having a high accuracy weighing range and including means for outputting a first signal in response to a weight on said supporting means; a high range load cell having a high load weighing range which is higher than said high accuracy weighing range, said high range load cell including means for outputting a second signal in response to a weight on said supporting means; means for receiving said first and second signals and for outputting a weight signal as a function of one of said first and second signals, wherein said means for receiving includes means for outputting said weight signal as a function of said first signal for any said weight within said weighing range of said low range load cell, whereby high accuracy weighing is achieved; means for counting a number of repetitions of receiving said first and second signals by said means for receiving; and means for outputting a counting signal as a function of said received repetition signals, whereby said instrument may be used as a counting instrument. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification