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JJF 1510-2015 English PDF

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JJF 1510-2015: Program Pattern Evaluation of Target Flowmeter
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Standard similar to JJF 1510-2015

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Basic data

Standard ID JJF 1510-2015 (JJF1510-2015)
Description (Translated English) Program Pattern Evaluation of Target Flowmeter
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.120
Word Count Estimation 24,230
Date of Issue 2015-01-30
Date of Implementation 2015-04-30
Quoted Standard JJG 461-2010; GB/T 17626.2; GB/T 17626.3; GB/T 17626.8
Regulation (derived from) The State Administration of Quality Supervision, Inspection and Quarantine Announcement 2015 No. 19
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This Standard applies to the classification code for the type evaluation 12, 182, 500 target type flowmeter.

JJF 1510-2015: Program Pattern Evaluation of Target Flowmeter

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Program Pattern Evaluation of Target Flowmeter People's Republic of China National Metrology Technical Specifications The target type flowmeter type evaluation outline Issued on. 2015-01-30 2015-04-30 implementation The State Administration of Quality Supervision, Inspection and Quarantine released The target type flowmeter type evaluation outline Focal point. the National Technical Committee on Metering flow capacity Main drafting unit. Henan Institute of Metrology Participated in the drafting unit. Liaoning Provincial Institute of Metrology Grand National Water flow metering station Quanzhou Heng Jin Cobo Control Technology Co., Dandong-Bo Electric Co., Ltd. Quanzhou Rixin Flow Instrument Co., Ltd. This specification flow capacity commissioned the National Technical Committee responsible for the interpretation of measurement The main drafters of this specification. Cuiyao Hua (Henan Institute of Metrology) Zhu Yonghong (Henan Institute of Metrology) Drafters participate. Mei Chen (Liaoning Provincial Institute of Metrology) Miao Yu-sheng (Grand National Water flow metering station) Xiong Huan Qi (Quanzhou Heng Jin Cobo Control Technology Co., Ltd.) Yuan Zhonglin (Dandong-Bo Electric Co., Ltd.) Liang Lulin (Quanzhou Rixin Flow Instrument Co., Ltd.)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 Terms and Definitions (1) 3.1 measuring tube (1) 3.2 Target (1) 3.3 The target type flowmeter (1) 4 Overview (1) 4.1 works (1) 4.2 Structure type (2) 5 legal management requirements (2) 5.1 units of measurement (2) 5.2 External structure (2) Flag 5.3 (2) 6 measurement requirements (3) 6.1 accuracy class and the maximum permissible error (3) 6.2 reference error (3) 6.3 Repeatability (3) 7 General technical requirements (3) 7.1 Appearance (3) 7.2 Safety Performance (3) 7.3 Electromagnetic Environment Immunity (4) 8 pattern evaluation item list (4) 9 provides the number of prototype and prototype use (5) 9.1 provide prototype number (5) 9.2 Prototype use (5) Test methods and conditions as well as data processing and compliance criteria 10 pilot projects (5) Environmental conditions 10.1 (5) 10.2 test medium (5) Safety Performance Test 10.3 (5) 10.4 metrological performance test (6) 10.5 Electromagnetic Immunity Test Environment (9) 11 Type Judgment (10) Results 11.1 determination principle (10) of a single product Determination principle (10) 11.2 products 12 pilot projects are measuring instruments and equipment (10) Appendix A pattern evaluation record format (12)

Introduction

This type of evaluation based on the outline JJF 1016 "Measuring Instruments type evaluation outline guidelines for the preparation", JJF 1015 "count The amount of equipment type and universal norms "and JJF 1001" common measurement terms and definitions of "compilation. The outline of the type evaluation technical indicators reference JJG461-2010 "target flowmeter" and other technical regulations. This type of evaluation outline for the first release. The target type flowmeter type evaluation outline

1 Scope

This type of evaluation outline for categorical code 12182500 target type flowmeter (hereinafter referred to as meter) of Type evaluation. 2. References This outline cited the following documents. JJG461-2010 target type flowmeter GB/T 17626.2 Electromagnetic compatibility Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.3 electromagnetic compatibility test and measurement technology RFEMS test GB/T 17626.8 Electromagnetic compatibility Testing and measurement techniques - Power frequency magnetic field immunity test For dated references, only the dated edition applies to this specification. For undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 Terms and Definitions

3.1 measuring tube metertube And some special processing techniques to meet specific requirements for the pipe section, wherein the mounting element or may be means for measuring the flow rate. 3.2 Target target Measuring tube mounted within the flow detection element. 3.3 Target Flowmeter targetflowmeter A target plate placed in the measuring tube, through the measuring tube to force the target plate is determined by detecting the fluid flow fluid Volume flow meter.

4 Overview

Works 4.1 Setting a direction perpendicular to the stream of Target, Target surrounding fluid along a constant cross-section through a straight pipe segments, Target action by thrust, thrust is proportional to the size of the area of the kinetic energy of the fluid and Target. In certain Reynolds number The range, proportional to the force flow through the flow meter and Target suffered. Target the force detected by the force sensor. A circular target plate, for example, mass flow calculations see formula (1). qm = 1.253αγ D2-d2 d ρF (1) Volume flow calculation see formula (2). qV = qm/ρ = 1.253αγ D2-d2 (2)

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