IEC 60650:1979

FOREWORD
PREFACE
Clause
1 Scope
2 Object
3 Definitions
  3.1 Instruments
  3.2 Characteristics
  3.3 Conditions of test and use
  3.4 Errors
4 General test conditions
  4.1 Reference conditions and rated range of use
  4.2 Preliminary settings
  4.3 General arrangements for tests
  4.4 General principles of the proposed methods
5 Characteristics and test methods
  5.1 Effective range
  5.2 Theoretical constants
  5.3 Input characteristics
  5.4 Output characteristics
  5.5 Response time and settling time
  5.6 Rise time
  5.7 Restoration time
  5.8 Errors - General expression
  5.9 Accuracy class
  5.10 Static error
  5.11 Dynamic error
  5.12 (Integral) Linearity error
  5.13 Stability error
  5.14 Output indication fluctuations
  5.15 Variations as a function of supply voltage
  5.16 Variations as a function of temperature
  5.17 Variations as a function of load
6 Electromagnetic noise
  6.1 Electromagnetic noise susceptibility
  6.2 Interference production
  6.3 Protection measures
7 Environmental testing procedures
8 Reliability
9 Auxiliary circuits
  9.1 Calibration frequencies
  9.2 Ratemeter zero setting
  9.3 Proper functioning check circuits
APPENDIX A - Qualitative test with a radioactive source
APPENDIX B - Typical curves for 6 decade instruments
APPENDIX C - Typical curves for 7 decade instruments

Applies to linear or logarithmic analogue ratemeters used in nuclear instrumentation to measure random pulse counting rates as produced by detectors. Defines the characteristics used for expressing functional performance and establishes the test methods recommended for measuring and verifying such characteristics.