NF EN 61143-1 : 94 AMD 1 98

Committees responsible
National foreword
Foreword
1 Scope
2 Normative references
3 Definitions
4 Description, classification and compliance
5 Reference conditions and intrinsic errors
6 Nominal range of use and variations
7 Further electrical and mechanical requirements
8 Constructional requirements
9 Information, markings and symbols
10 Markings and symbols for terminals
11 Tests to prove compliance with this part
Annex
A (normative) Determination of the influence of
     parasitic input quantities
ZA (normative) Other international publications quoted in
     this standard with the references of the relevant
     European publications
Tables
1 Reference conditions and tolerances for testing
     purposes relating to the influence quantities
2 Limits of the nominal range of use and permissible
     variations
3 Examples of marking of reference values, reference
     ranges and nominal ranges of use for temperature
4 Symbols for marking recorders
Figures
A.1 Circuit diagram for the common mode test
A.2 Circuit diagram for the series mode test
A.3 Circuit diagram for the parallel mode test

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.