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YS/T 683-2008 English PDF

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YS/T 683-2008: Calibration specification for local mounting pressure(differential pressure)transmitter
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YS/T 683-2008English489 Add to Cart 3 days [Need to translate] Calibration specification for local mounting pressure(differential pressure)transmitter   YS/T 683-2008

PDF similar to YS/T 683-2008


Standard similar to YS/T 683-2008

GB/T 20730.2   GB/T 19146   CJ 128   

Basic data

Standard ID YS/T 683-2008 (YS/T683-2008)
Description (Translated English) Calibration specification for local mounting pressure(differential pressure)transmitter
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard N11
Classification of International Standard 17.100
Word Count Estimation 14,114
Date of Issue 2008-03-12
Date of Implementation 2008-09-01
Quoted Standard JJF 1059-1999
Regulation (derived from) NDRC Notice No. 25 of 2008
Issuing agency(ies) National Development and Reform Commission
Summary This standard applies to include positive and negative pressure, differential pressure and absolute pressure transmitter field calibration.

YS/T 683-2008: Calibration specification for local mounting pressure(differential pressure)transmitter


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration specification for local mounting pressure (differential pressure) transmitter Book People's Republic of China Nonferrous Metals Industry Standard Pressure (DP) transmitter site calibration specification Posted 2008-03-12 2008-09-01 implementation National Development and Reform Commission issued

Foreword

This standard by the National Standardization Technical Committee of non-ferrous metals and centralized. The Standard Appendix A, Appendix B and Appendix C are informative appendices. This standard by the Jinchuan Group Ltd. is responsible for drafting. This standard by the Aluminum Corporation of China Henan Branch, Liuzhou China Tin Group Co., Ltd., Chinalco Luoyang Copper Co. Division, Yunnan Copper Co., Ltd., Southwest Aluminum (Group) Co., Ltd. and Zhuzhou Smelter Group Co., Ltd. participated in the drafting. The main drafters of this standard. Lu Yi, Li Qiujuan, Wang Yongpeng, Mongolia Cho, Chow, Liang Jirong, Bao Yang Jun, Li Kanglie, Duai Xia, Wang Jian Cao. This standard by the National Standardization Technical Committee is responsible for interpretation of non-ferrous metals. Pressure (DP) transmitter site calibration specification

1 Scope

This standard applies to include positive and negative pressure, differential and absolute pressure transmitters for field calibration.

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. JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement

3 Terms and Definitions

In measured on the same point, the absolute value of the difference between the actual value of the down stroke, the return is an error at this point.

4 Overview

Pressure variable pressure transmitter is converted to the corresponding normalized output signal can be transmitted meter. Mainly used for industrial process pressure (Or differential pressure) measured parameters. Pressure transmitter consists of a pressure-sensitive components, signal processing and conversion units, according to the principle can be divided into capacitive, piezoresistive and so on. Electric and pneumatic pressure transmitter has two categories. Normalized output signal electric pressure transmitter is 0mA ~ 10mA or DC signal 4mA ~ 20mA; the pneumatic pressure transmitter output signal is standardized gas pressure signal is 20kPa ~ 100kPa.

5 Metrological characteristics

5.1 Measurement error The maximum pressure transmitter measurement error shall not exceed the maximum permissible error. 5.2 Return Error Return error pressure transmitter must not exceed the maximum permissible error of absolute value. 5.3 static error Static differential pressure transmitter errors shall not exceed the maximum permissible error. 5.4 Stability Pressure (DP) transmitter drift must not exceed the range specified in the instructions. 5.5 Insulation resistance Insulation resistance of each terminal pressure (DP) transmitter (including housing) should be not less than 20MΩ. Of the terminals is not isolated Do insulation test.

6 calibration conditions

6.1 Environmental conditions Environmental conditions should be corrected to meet the normal requirements of the instrument, the standard working conditions should be consistent with the site environmental conditions, on-site calibration Should be considered due to environmental values deviate from the uncertainty of the impact of the amount shown. 6.2 staff Calibration should be qualified and trained personnel hold the appropriate qualifications.

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