JJG 74-2005
Recorders for Industrial--Process Measurement (English Version)

Standard No.

JJG 74-2005

Language

Chinese, Available in English version

Release Date

2005

Published By

National Metrological Verification Regulations of the People's Republic of China

Latest

JJG 74-2005

Replace

JJG 706-1990 JJG 74-1992

Scope

This procedure is applicable to the initial calibration, subsequent calibration and in-use inspection of industrial process measurement recorders equipped with thermocouples or thermoelectric groups to measure temperature, and that use DC voltage, current and resistance as analog electrical signal inputs to reflect other physical and chemical quantities. . Industrial process measurement recorders (hereinafter referred to as instruments) include automatic potentiometers, automatic balancing bridges, function recorders, hybrid recorders and paperless recorders that combine digital and analog instructions.

JJG 74-2005 Referenced Document

• JJG 617-1996 Verification Regulation of Digital Temperature Indicators and Controllers
• JJG 951-2000 Verification Regulation of Analogue Temperature Indicators and Controllers*， 2024-04-18 Update

JJG 74-2005 history

• 2005 JJG 74-2005 Recorders for Industrial--Process Measurement
• 1992 JJG 74-1992 Verification Regulation of Selfbalance Display Instruments
• 1990 JJG 706-1990 Verification Regulation of Self-balance Display Instruments with Step-contral

JJG 74-2005 Recorders for Industrial--Process Measurement has been changed from JJG 706-1990 Verification Regulation of Self-balance Display Instruments with Step-contral.