EN 61143-1:1994/A1:1997

FOREWORD
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
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 (normative) Determination of the influence of parasitic
                     input quantities
Annex ZA (normative) Other International Publications quoted in
                     this standard with the references of the
                     relevant European Publications

Applies to X-t recorders used for measuring voltage and current which record and measure analogue electrical quantities as a function of time. Also applies to a recorder whose chart scale lines do not correspond directly to the electrical input quantity, as long as the relationship between them is known. Not applicable to special purpose recorders or to special purpose devices (when they are used as accessories) which are covered by their own IEC standards. Applies to accessories of limited changeability and to non-interchangeable accessories if they are used with the recorder and the adjustments have been made for the combination. For controllers with electrical outputs and containing electrical recorders, does not apply to the control circuit; only applies to the recorder.