BSI 16/30336202 DC:2016 Edition
$13.70
BS EN 60051-4. Direct acting indicating analogue electrical measuring instruments and their accessories. Part 4. Special requirements for frequency meters
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 16 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Description, classification and compliance 5 Requirements 5.1 Reference conditions |
| 10 | 5.2 Limits of intrinsic uncertainty, fiducial value 5.2.1 Limits of intrinsic uncertainty 5.2.2 Correspondence between intrinsic uncertainty and accuracy class 5.2.3 Fiducial value 5.2.3.1 Special requirements for vibrating reed frequency meters 5.3 Nominal range of use and variations 5.3.1 Nominal range of use |
| 11 | 5.3.2 Limits of variations 5.3.3 Conditions for the determination of variations 5.4 Operating uncertainty, overall system uncertainty and variations 5.5 Electrical requirements 5.5.1 Electrical safety requirements 5.5.2 Self-heating 5.5.3 Permissible overload 5.5.3.1 Continuous overload |
| 12 | 5.5.3.2 Overloads of short duration 5.5.4 Limiting range of temperature 5.5.5 Deviation from zero |
| 13 | 5.5.6 Electromagnetic compatibility (EMC) 5.6 Constructional requirements 5.6.1 General constructional requirements 5.6.2 Damping 5.6.3 Sealing to prevent access 5.6.4 Scales 5.6.5 Stopper 5.6.6 Preferred values 5.6.7 Adjusters, mechanical and/or electrical 5.6.8 Effects of vibration and shock |
| 14 | 5.6.9 Degrees of protection provided by enclosure 5.6.10 Terminals 6 Information, markings and symbols 6.1 Information 6.2 Markings, symbols and their locations 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities 6.4 The symbols for marking instruments and accessories 6.5 Markings and symbols for terminals 6.5.1 Requirements for markings 6.5.2 Earthing (grounding) terminals 6.5.3 Measuring circuit terminals 6.5.4 Special markings for terminals 6.5.4.1 Self-contained frequency meters (i.e. without an accessory) 6.5.4.2 Frequency meters having (an) accessory(ies) |
| 15 | 6.6 Instructions for use 7 Package 8 Test rules |
| 16 | Annex A (normative) Nonconformity classification of tests |
