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JJF 1664-2017 English PDF

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US$599.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 1664-2017: Calibration Specification for Temperature Indicators
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1664-2017	599	Add to Cart	5 days	Calibration Specification for Temperature Indicators	Valid

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Basic data

Standard ID: JJF 1664-2017 (JJF1664-2017)
Description (Translated English): Calibration Specification for Temperature Indicators
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A54
Classification of International Standard: 17.200
Word Count Estimation: 26,293
Date of Issue: 2017-11-20
Date of Implementation: 2018-02-20
Quoted Standard: JJG 617-1996; JJG 951-2000; GB/T 16839.1-1997; JB/T 8622-1997; JB/T 8623-1997
Regulation (derived from): AQSIQ Notice 2017 No. 103
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to temperature display instruments that accept temperature sensors such as thermocouples and thermal resistors or temperature transmitter output signals, including the calibration of the temperature display part of the process measurement control system. Secondary instruments that accept dc voltage or current process signals can be calibrated against this standard.

JJF 1664-2017: Calibration Specification for Temperature Indicators

---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 Temperature Indicators People's Republic of China National Metrology Technical Specifications Temperature Indicator Calibration Specifications Published on.2017-11-20 2018-02-20 Implementation The State Administration of Quality Supervision, Inspection and Quarantine issued Temperature Indicator Calibration Specifications Key units. National Temperature Measurement Technical Committee Drafted by. Shanghai Institute of Metrology and Measurement Technology Participated in drafting. Shandong Institute of Metrology Hebei Province Measurement Supervision and Inspection Institute Zhejiang Institute of Metrology This specification entrusts the National Temperature Measurement Technical Committee to explain The main drafters of this specification. Ling Yancui (Shanghai Measurement and Measurement Technology Research Institute) Jianying Wu (Shanghai Measurement and Measurement Technology Research Institute) Participating drafters. Xu Xingye (Shandong Institute of Metrology Science) Qi Rongqin (Hebei Provincial Metrological Supervision and Inspection Institute) Fang Xiaoqin (Institute of Metrology, Zhejiang Province)

Introduction (II) 1 Scope (1) 2 References (1) 3 Overview (1) 4 Metrological characteristics (2) 4.1 Error indication (2) 4.2 Safety Performance (2) 5 Calibration Conditions (2) 5.1 Standard Equipment and Other Equipment (2) 5.2 Environmental Conditions (3) 6 Calibration Items and Calibration Methods (3) 6.1 Calibration and Inspection Items (3) 6.2 Calibration Methods (3) 6.3 Data Processing Principles (7) 7 Expression of Calibration Results (7) 8 Re-school interval (8) Annex A Digital Meter Representation Value Error Calibration Uncertainty Evaluation Example (9) Appendix B Simulator Value Error Calibration Uncertainty Evaluation Example (12) Appendix C Original Record Form (Reference) (15) Appendix D Deviation Indicator Meter Measurement Record (Example) (18) Appendix E The differential resistance of the thermal resistance and the Seebeck coefficient of the thermocouple (informative) (19) Appendix F Internal Format of Calibration Certificate (21)

Introduction

This specification was drafted in accordance with JJF 1071-2010 "Rules for the preparation of national metrological calibration specifications", in which measurement uncertainty The degree of assessment was conducted in accordance with JJF 1059.1-2012 Evaluation and Expression of Measurement Uncertainty. There is no temperature The publication of relevant international recommendations for display instruments, only the European Union's.2007 calibration guide EURAMET/cg-11/ V.01 "Guideline calibration standards for temperatureindicators" Andsimulatorsbyelectricalsimulationandmeasurement) for reference, this specification is equivalent to The temperature display instrument part of the calibration principle, calibration requirements and uncertainty assessment. This specification is the first release. Temperature Indicator Calibration Specifications

1 Scope

This specification applies to the temperature of a temperature sensor signal such as a thermocouple, a thermal resistor, or a temperature transmitter output signal Display instrumentation, including calibration of the temperature display part of the process measurement control system. Accepts DC voltage or current process information The secondary instrument shown on the number can be calibrated with reference to this specification.

2 references

This specification refers to the following documents. JJG617-1996 Digital Temperature Indicating Controller JJG951-2000 Analog Temperature Indicating Controller Thermocouples Part 1. Indexing Tables GB/T 16839.1-1997 JB/T 8622-1997 Technical conditions and indexing table for platinum resistance resistors JB/T 8623-1997 Technical conditions and index table for industrial copper thermal resistance For dated references, only the dated edition applies this specification; for undated references, The latest version (including all amendments) applies to this specification.

3 Overview

Temperature display instrument is an industrial process measurement instrument, also known as temperature secondary instrument. The meter itself cannot be alone To measure the temperature, it must match the temperature sensor and accept its signal to measure the temperature. Instrument input signal is a standard Qualified and normative signals usually include compliance with International Electrotechnical Commission (IEC ) standards, national standards, industry standards Qualified thermal resistance, thermocouple signals, and standardized (current, voltage) signals, and recognized standardization in specific fields signal. When the instrument is connected to the thermocouple to measure the temperature, it usually has the function of automatic compensation of the reference temperature. The external cold junction compensator is directly connected to the thermocouple. The types of thermal resistors commonly used today include Pt100, Pt500, Pt1000, Cu50, Cu100, etc. The corresponding relationship of resistance (referred to as the index table, the same below) follows the JB/T 8622-1997 and JB/T 8623-1997 standards. Quasi-required; common types of thermocouples are B, S, R, K, N, E, J, T, etc., and their temperature and potential values correspond to each other. The relationship follows the requirements of the GB/T 16839.1-1997 standard; the instrument accepts a standardized DC signal as current 4mA~20mA, voltage 1V~5V and so on. The characteristics of the instrument according to the temperature display can be divided into two major categories of digital instruments and analog instruments. Digital display meter press Classification of resolution, common resolution 0.1 °C and 1 °C. Analog display methods include pointer indications, ribbon indications, and There are three types of beam indicators, full scale indication and deviation indication combined with the set value. The input signal of the instrument can be single, it can be compound, or it can be operated according to the specification. Key settings. Instrumentation block diagram shown in Figure 1. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 1664-2017_English be delivered?

Answer: Upon your order, we will start to translate JJF 1664-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 1664-2017_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 1664-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.