IEC 61143-1 : 1.1

ELECTRICAL MEASURING INSTRUMENTS - X-T RECORDERS - PART 1: DEFINITIONS AND REQUIREMENTS

International Electrotechnical Committee

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Foreword
Clause
1 Scope
2 Normative references
3 Definitions
   3.1 General terms
   3.2 Description of recorders according to their
        methods of operation
   3.3 Construction features of recorders
   3.4 Characteristic features of recorders
   3.5 Characteristic values
   3.6 Influence quantities, reference conditions,
        nominal range of use and preconditioning
   3.7 Errors and variations
   3.8 Accuracy, accuracy class, class index
4 Description, classification and compliance
   4.1 Description
   4.2 Classification
   4.3 Compliance with the requirements of this part
5 Reference conditions and intrinsic errors
   5.1 Reference conditions
   5.2 Fiducial value and limits of intrinsic errors
   5.3 Span
   5.4 Dead band
   5.5 Additional error due to zero displacement use
6 Nominal range of use and variations
   6.1 Nominal range of use
   6.2 Limits of variations
   6.3 Conditions for the determination of variations
   6.4 Variation in timekeeping
   6.5 Variation due to parasitic input quantities
7 Further electrical and mechanical requirements
   7.1 Dynamic performance
   7.2 Continuous use
   7.3 Permissible overloads
   7.4 Limiting values of temperature
8 Constructional requirements
   8.1 Sealing to prevent access
   8.2 Scales and charts
   8.3 Preferred values
   8.4 Vibration and shock
9 Information, markings and symbols
   9.1 Information on the recorder
   9.2 Information in documentation
   9.3 Information relating to reference conditions and
        nominal ranges of use
10 Markings and symbols for terminals
   10.1 Requirements for markings
   10.2 Earthing (grounding) terminals
   10.3 Measuring circuit terminals
11 Tests to prove compliance with this part
   11.1 Performance
Annex A Determination of the influence of parasitic input
        quantities

Abstract

Applies to X-t recorders used for the measurement of voltage and current which measure and record analogue electrical quantities as a function of time. Also applies to non-interchangeable accessories and accessories of limited interchangeability (e.g. shunts, impedance-elements) if they are used with the recorder and the adjustments have been made for the combination.