GB/T 3927-2008 English PDF

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GB/T 3927-2008: Direct-current potentiometers
Status: Valid

GB/T 3927: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3927-2008	334	Add to Cart	3 days	Direct-current potentiometers	Valid
GB/T 3927-1983	719	Add to Cart	5 days	Direct-current potentiometers	Obsolete

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Basic data

Standard ID: GB/T 3927-2008 (GB/T3927-2008)
Description (Translated English): Direct-current potentiometers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N25
Classification of International Standard: 17.220.20
Word Count Estimation: 17,114
Date of Issue: 2008-08-06
Date of Implementation: 2009-03-01
Older Standard (superseded by this standard): GB/T 3927-1983
Adopted Standard: IEC 60523-1997, IDT
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 applies to the level of accuracy of 0. 0001 ~ 0. 1 [1ppm ~ 1000ppm (parts per million), 1X10-6 ~ 1X10-3 (scientific notation, scientific notation)] of the DC potentiometer, and applies to the potential difference meter containing auxiliary equipment. This standard does not apply to automatic zero balancing potentiometer, do not apply to those obtained by the balanced detector portion of the scale indicated value potentiometer, do not apply potentiometer used in conjunction with an external auxiliary equipment.

GB/T 3927-2008: Direct-current potentiometers

---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.
Direct-current potentiometers ICS 17.220.20 N25 National Standards of People's Republic of China GB/T 3927-2008/IEC 60523.1997 Replacing GB/T 3927-1983 DC potentiometer (IEC 60523.1997, IDT) Posted 2008-08-06 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is equivalent to using the International Electrotechnical Commission standard IEC 60523.1997 "DC potentiometer" (in English), its technical content and conclusions Configuration and IEC 60523.1997 are identical. This standard is in place from the date of implementation of the GB/T 3927-1983 "DC potentiometer." This standard compared with GB/T 3927-1983, the main changes are as follows. --- Information and content of the flag, the deletion of the original test voltage flag, flag increases the level of pollution and other requirements. The Standard Appendix A, Appendix B are normative appendix. The standard proposed by China Machinery Industry Federation. This standard by the National Electrical Instrument Standardization Technical Committee (SAC/TC104) centralized. This standard is drafted by. Shanghai Instrument Research Institute. Participated in the drafting of this standard. Shanghai Factory Zhengyang, the Highland Sting Instrument Research Institute. The main drafters of this standard. Zhangyin Fu, Dong Yafeng, Sun Xiaohong. This standard replaces the standards previously issued as follows. --- GB/T 3927-1983. GB/T 3927-2008/IEC 60523.1997 DC potentiometer

1 Scope

This standard applies to the level of accuracy of 0.0001 ~ 0.1 [1ppm 1000ppm (parts per million) ~, 1 × 10-6 ~ 1 × 10-3 (Scientific notation scientificnotation)] of DC potentiometer, and applies the voltage difference meter included auxiliary equipment. This standard does not apply to automatically receive zero balancing potentiometer, do not apply to those obtained by the balanced detector scale portion of the indicated value Potentiometer, do not apply to external and auxiliary equipment for use with the potentiometer.

2 Terms and definitions

The following terms and definitions apply to this standard. A voltage measuring instrument, which uses a known voltage and the measured voltage equilibrium, the voltage can be known by a constant current flow through the adjustable By the variable resistor or a current flowing through the fixed resistor is obtained, or by a combination thereof is obtained Used to determine the measured value of the dial. If any, should be multiplied by the appropriate scale factor. For a specified scale factor, the potential difference in the accuracy of measurement can be specified dial shows the range of values. An effective range multiplied by a program called "scale factor" coefficient (eg 0.1) devices. To ensure an accurate indication of the necessary adjustment potentiometer measurement. After potentiometer standardization, when it is determined by measuring the voltage potential difference value shown balance measurement plate. If necessary, to be multiplied by Range factor. We can ensure that the potential difference required to work safely and accurately necessary additional equipment. It may or may not be a potentiometer An integral part. The equivalent of a minimum step voltage measurement disk or minimum scale voltage. It may be applied to the potentiometer on the line while the contact potential difference does not become the most dangerous ground voltage. Ratio. root mean square value of the harmonic components 1) The amount of non-sinusoidal root mean square value Ratio. fluctuation component of the root mean square value of the DC component value 1) In addition to the fundamental wave outside. Prevent the leakage current on the measurement results of a conductive path. GB/T 3927-2008/IEC 60523.1997 ......

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