IEC 62385:2007

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements for performance verification of process
  instruments
  4.1 Background
  4.2 General requirements
  4.3 Testing environment
  4.4 Test interval
  4.5 Test location
  4.6 Calibration of measurement and test equipment
  4.7 Test results
  4.8 Validation of test methods
  4.9 Qualifications of test personnel
5 Acceptable means for instrument performance verification
  5.1 Introduction
  5.2 Calibration
  5.3 Channel checks
  5.4 Functional test
  5.5 Response time testing
6 Methods to verify instrument calibration
  6.1 General considerations
  6.2 Cross-calibration (cross-validation) method
  6.3 On-line calibration monitoring
      6.3.1 Introduction
      6.3.2 Principle of on-line calibration monitoring
      6.3.3 Data acquisition requirements
      6.3.4 Data qualification and data analysis requirements
      6.3.5 Accounting for common mode drift
      6.3.6 Data collection frequency
7 Methods for response time testing
  7.1 Response time testing of pressure transmitters
      7.1.1 Ramp test
      7.1.2 Noise analysis technique
      7.1.3 Power interrupt (PI) test
  7.2 Response time testing of temperature sensors
      7.2.1 Plunge test
      7.2.2 LCSR test
      7.2.3 Self-heating test
      7.2.4 Noise analysis
8 On-line detection of blockages and voids in pressure
  sensing lines
9 Verifying the performance of neutron detectors
Annex A (informative) RTD cross-calibration/cross-validation
Annex B (informative) On-line calibration monitoring
Annex C (informative) Response time testing techniques for
                      pressure transmitters and neutron detectors
Annex D (informative) Response time testing techniques for RTDs
Bibliography

Defines the requirements for demonstrating acceptable performance of safety system instrument channels through response time testing, calibration verification, and other means. The same requirements may be adopted for demonstrating the acceptable performance of non-safety systems and other instrument channels.