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SMA Standard for Load Cell Specifications
(SMA LCS 04-99)

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This standard was developed to meet industry with a standard to be used in the selection and installation of load cells. It includes:

  • A rating system describing load cell construction and environmental protection
  • A list of user specifications including terminology and units of measure
  • Suggested color codes for load cell wiring
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SMA Load Cell Application and Test Guideline
(April 2010)


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This user guide is a supplement to the SMA Standard for Load Cell Specifications and is offered to help the load cell user understand load cell terminology, specifications and test procedures.

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SMA Environmental Design Standards for Scales
(SMA EDS 11-04)

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This standard assists the end user in determining the suitability of a scale for their specific application. The standard also provides the manufacturer with a range of test criteria to enable scale testing to realistic environmental conditions.

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SMA Standard for Scale Serial Communications, Levels 1 & 2
(SMA SCP 04-99M1)

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Download the Tester

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This standard is meant to provide a means of establishing standard communications protocol for scales interfacing with computers and computing peripherals. The standard contains the basic requirements for basic scale products to communicate weight and status information to a smart host device. Two levels, 1 and 2, are included to provide for the most basic of weight indicators and for those with more features. Included is a Implementation tester software package and documentation for validating the interface.

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SMA Standard for Vehicle Scale Characterization
(SMA VCS 11-02)

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This standard provides criteria for characterizing the service life of a vehicle scale based on its concentrated load capacity. The standard provides tables for service life based on a design fatigue life developed by the American Institute of Steel Construction (AISC) and the American Association of State Highway and Transportation Officials (AASHTO).

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SMA Standard for Software Sealing Method of Access
(SMA SSM 11-02)

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This standard defines a uniform procedure used to access the parameter and calibration counters used for Category 1 and 2 scale sealing methods and the event log used in the Category 3 scale sealing method as defined in NIST Handbook 44.

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SMA Standard for Shock and Overload Protection of Scales
(SMA SOP 04-99)

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This standard describes the criteria associated with the design and suitability of scales used in applications where shock and overload are anticipated. The standard quantifies the shock and overload conditions and can be used with either electronic or mechanical scales. The standard applies to complete scales and does not include scale components like load cells.

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SMA Recommendations on Electrical Disturbances
(SMA RED 04-99)

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This document provides descriptions of the nature and effects of electrical disturbances on weighing systems and includes various recommended third-party standards used to regulate these disturbances.

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SMA RFI/EMI Field Test Procedures for Electronic Scales
(2008 Revision)

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This document defines a field test procedure that applies to all electronic scales subjected to RFI and EMI.

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