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GB/T 9249-2008 English PDF

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GB/T 9249-2008: Self-balance recorders and indicators for use in industrial-process measurement and control systems
Status: Valid

GB/T 9249: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 9249-2008English209 Add to Cart 3 days [Need to translate] Self-balance recorders and indicators for use in industrial-process measurement and control systems Valid GB/T 9249-2008
GB/T 9249-1988English279 Add to Cart 3 days [Need to translate] Self-balance recorders and indicators for use in industerial-process measurement and control systems Obsolete GB/T 9249-1988

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Basic data

Standard ID GB/T 9249-2008 (GB/T9249-2008)
Description (Translated English) Self-balance recorders and indicators for use in industrial-process measurement and control systems
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard N14
Classification of International Standard 25.040.40
Word Count Estimation 9,954
Date of Issue 2008-07-28
Date of Implementation 2009-02-01
Older Standard (superseded by this standard) GB/T 9249-1988
Quoted Standard GB/T 3386.1-2007; GB/T 18271.2; GB/T 18271.3; GB/T 22112-2008; GB/T 22162-2008; JB/T 9266-1999; JB/T 9329-1999
Regulation (derived from) Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the industrial process measurement and control systems automatically balance recorders and indicators (hereinafter referred to as instrumentation) of the basic parameters, requirements, test methods and inspection rules. This standard applies to industrial process measurement and control systems with an analog electrical signal electronic automatic potentiometer, balance electric bridge recorders and indicator (hereinafter referred to as the potential difference and bridge). Potentiometer input side of the nominal external resistance is not greater than 10000��, rated input side of the bridge outside the resistance is not greater than 1500�� This standard only applies to normal operating conditions using the instrument, the special operating conditions of the instrument using the additional technical requirements not within the standard range. This standard excludes devices with additional instrumentation additional requirements.

GB/T 9249-2008: Self-balance recorders and indicators for use in industrial-process measurement and control systems


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Self-balance recorders and indicators for use in industrial-process measurement and conrol systems ICS 25.040.40 N14 National Standards of People's Republic of China Replacing GB/T 9249-1988 Industrial process measurement and control systems Self - balance recorders and indicators Posted 2008-07-28 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The revised standard and replaces GB/T 9249-1988 "industrial process measurement and control systems automatically balance recorders and indicators." This standard and GB/T 9249-1988 the main differences are as follows. --- In accordance with the provisions of GB/T 1.1-2000 were editorial changes; --- Update the normative references; --- Table 1 Accuracy class increased by 0.2 of a file, 0.3 in brackets, indicating not recommended; --- Increased supply voltage short interruptions, low supply voltage drop, electromagnetic radiation, electrostatic discharge immunity requirements; , GB/T 18271.2-2000 and GB/T --- test methods according to the provisions of GB/T 3386.1-2007 18271.3-2000 of carried out; Title --- Chapter 7 to "storage." The standard proposed by China Machinery Industry Federation. The standard measurement and control of industrial processes by the National Standardization Technical Committee at its first Technical Committee (SAC/TC124/SC1) Centralized. This standard is drafted by. Shanghai Institute of Industrial Automation Instrumentation. Participated in the drafting of this standard. Shanghai Automation Instrumentation System Inspection and Testing Institute. The main drafters of this standard. Li Minghua, Tsai Wen-chi, Lo Ting. This standard replaces the standards previously issued as follows. --- GB/T 9249-1988. Industrial process measurement and control systems Self - balance recorders and indicators

1 Scope

This standard specifies the industrial process measurement and control systems automatically balance recorders and indicators (hereinafter referred to as instrumentation) of the basic parameters Number of requirements, test methods and inspection rules. This standard applies to industrial process measurement and control systems with electronic automatic potentiometer, balancing bridge electrical signal and analog recorder Indicator (hereinafter referred to as the potentiometer and bridge). Potentiometer input side of the outer resistance rating of not more than 10000Ω; transmission bridge Rated into the outer side of the resistance is not greater than 1500Ω. This standard applies only under normal operating conditions additional technical requirements under the instrument instrument, special working conditions of use does not belong Scope of this standard. This standard includes additional requirements nor the instrument with an additional device.

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 3386.1-2007 industrial process control systems with electric and pneumatic analogue chart recorders - Part 1. Performance Evaluation party Method (IEC 60873-1.2003, IDT) Tests under reference conditions. GB/T 18271.2 process measurement and control devices - General methods and procedures for evaluating performance - Part 2 (GB/T 18271.2-2000, idt IEC 61298-2.1995) GB/T 18271.3 process measurement and assessment methods and procedures - Part 3 common control device performance. effects of influence quantities test (GB/T 18271.3-2000, idt IEC 61298-3.1998) GB/T 22112-2008 industrial automation, instrumentation and arrangement of terminals logo GB/T 22162-2008 panel and rack - mounted industrial process measurement and control instrumentation disk and hole size (IEC 60668. 1980, IDT) JB/T 9266-1999 indicator Temperature measurement range JB/T 9329-1999 instrumentation transportation, transportation, storage and basic environmental conditions and test methods

3 basic parameters

3.1 Environmental conditions The meter shall be able to ambient temperature of 0 ℃ ~ 50 ℃, relative humidity of 10% to 90% of normal working conditions. Small instrument (Scale Length not more than 140mm) ambient temperature range of 0 ℃ ~ 40 ℃. 3.2 Power Instrumentation shall nominal voltage is 220V, 50Hz frequency nominal value of the AC power supply. 3.3 Dimensions Meter dimensions should be consistent with GB/T 22162-2008 and other relevant standards. 3.4 Measuring range Thermocouple and RTD temperature measurement instruments supporting its temperature measurement range should be consistent with the provisions of JB/T 9266-1999 of. And supporting other instruments measuring instruments, the measurement range specified by the manufacturer or consultation with users.

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