GB/T 13639-2008Digital indicators with analogue input for use in industrial-process measurement and control systems (English PDF)

Foreword

This standard replaces GB/T 13639-1992 "industrial process measurement and control systems using analog input digital indicator."

This standard and GB/T 13639-1992 main differences are as follows.

--- Update and add normative references;

--- Change the title of Chapter 3 "Terms and Definitions" and add the introductory phrase;

--- Test methods cited GB/T 18271.2-2000 and GB/T 18271.3-2000 the corresponding section;

--- Adjusted Chapter 5 sections of the order;

--- 5.2 change the title, "and affect the amount of the relevant technical specifications";

--- 5.6.2 "dielectric strength", the original standard table 4 Rated voltage of "60 to

1 Scope

This standard specifies the test methods for industrial process measurement and control systems with the main performance parameters of the analog input digital indicator, requirements,

And assessment rules.

This standard applies to industrial processes analog input measurement and control systems with a digital indicator (hereinafter referred to as indicator).

The other with analog - digital converter digital instrument cluster indicating portion can also refer to use.

Indicator can be used with the following sensors, transmitters used in conjunction with or accept the following signals.

a) a thermocouple or a radiation sensing device;

c) a Hall sensor or pressure transmitter;

d) resistance Remote pressure gauge;

e) standardized analog DC signal or other analog DC signal;

f) Other sensors produce a resistance change.

This standard applies only under normal operating conditions using a test indicator under the indicator, special working conditions of the additional requirements,

Not within the standard range.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 2900.56-2008 Electrotechnical terminology control technology (IEC 60050-351.2006, IDT)

GB/T 3369.1 process control systems with analog signals - Part 1. DC current signal (GB/T 3369.1-2008,

IEC 60381-1. 1982, IDT)

GB/T 3369.2 process control systems - analog signals - Part 2. DC voltage signal (GB/T 3369.2-2008,

IEC 60381-2. 1978, IDT)

GB/T 15464 instrumentation packaging technology

GB/T 17212-1998 industrial process measurement and control - Terms and definitions (idt IEC 60902. 1987)

GB/T 17614.1-2008 industrial process control systems use transmitters - Part 1. Methods of evaluating performance (IEC 60770-1.

GB/T 18271.1-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 1. General (Idt IEC 61298-1.1995)

GB/T 18271.2-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 2. under reference conditions Test (idt IEC 61298-2.1995)

GB/T 18271.3-2000 Process measurement and control devices - General methods and procedures for evaluating performance - Part 3. effects of influence quantities Test (idt IEC 61298-3.1998)

GB/T 22112-2008 industrial automation, instrumentation and arrangement of terminals logo