GB/T 36245-2018Guide for reliability allocation of industrial process measurement and control instrument (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

Introduction

With the advancement of science and technology and the increasing complexity of the use of industrial process measurement and control instruments, the reliability indicators of instruments have become One of the most important technical indicators for measuring instrument quality. Reliability distribution is one of the most important means in reliability design technology.

Over the years, the development has become more and more mature. There are more than 10 methods that have been widely used at present, because each method has certain conditions and requirements.

With limited scope, not every method is applicable to industrial process measurement and control instruments;

With standards and specifications, this standard will be used to guide and standardize the distribution of reliability for industrial process measurement and control instrumentation engineers. jobs.

The basic components of industrial process measurement and control instruments can be generally divided into hardware and software. The reliability mathematical model is a series junction.

Structure, some key parts will adopt a parallel structure to ensure the completion of the instrument task. Carry out industrial processes by summarizing national science and technology projects Measurement and control instrument reliability research results and experience, combined with industrial process measurement and control instrumentation enterprise reliability distribution work practices, According to its composition characteristics, six reliability distribution methods suitable for industrial process measurement and control instruments are recommended in this standard.

Use principles, assignment models, and assignment steps to guide engineers through the application. When the instrument reliability index is assigned, the instrument will be soft.

The article is considered as a whole, and the distribution methods proposed in Chapter 8 of this standard are applicable. If you need to redistribute the software part of the meter, you can Examine Appendix A for implementation.

1 Scope

This standard specifies the principles, procedures, methods and results analysis of the reliability distribution of industrial process measurement and control instruments (hereinafter referred to as meters).

This standard applies to the reliability distribution of instruments.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 2900.13 Electrotechnical terminology credibility and service quality

GB/T 29821-2013 Guidelines for the preparation of instrument reliability technical reports for industrial process measurement and control systems

3 Terms and definitions

The following terms and definitions as defined in GB/T 2900.13 apply to this document. For ease of use, the following is repeated Some terms and definitions in GB/T 2900.13.