JJG 598-1989 Abolished National Metrology and Inspection Regulations JJG

JJG 598-1989 DC Digital Amperemeter

Publish Date: 1989-04-06 Implement Date: 1990-02-06 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 598-1989

Standard Type: National standards

Standard Status: Abolished

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1989-04-06

Implement Date: 1990-02-06

Publisher: The National Technical Supervision Bureau

Technical Committee: The National Institute of Metrology and Quality Supervision of China

Pages: 15 pages

Scope

This procedure is applicable to the verification of DC digital ammeters (DC-DIMs) that are newly produced, in use, or repaired, as well as the DC current measurement sections of digital multimeters (DMMs) and digital panel meters (DPMs). This procedure is also applicable to the verification of components related to the digital measurement of DC current by converting some physical quantities into DC current.
DC digital voltmeters (DC-DVMs) are the main components of DC digital ammeters. DC-DIMs first convert the current into a voltage using a DC current-voltage (I/V) converter, and then use DC-DVMs to perform digital measurements. The display units are generally in A or mA. Therefore, for digital multimeters, the DC voltage function is usually verified first, and then the DC current verification is carried out.