T/BEA 43013-2024 Active Group standards

T/BEA 43013-2024 Calibration Specification for Safety-Grade DC Micro-Amperemeters

T/BEA 43013-2024 Flight safety level of direct current microcurrent meter calibration specification

Publish Date: 2024-07-09 Implement Date: 2024-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/BEA 43013-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Mathematics

Publish Date: 2024-07-09

Implement Date: 2024-08-01

Scope

Scope: This specification applies to the calibration of digital multimeters with a measurement range of ±200 fA to ±20 mA. Main technical content: 1. Scope: This specification applies to the calibration of digital multimeters with a measurement range of ±200 fA to ±20 mA. 2. Referenced documents: The provisions of the following documents are incorporated into this standard by reference. For dated referenced documents, all subsequent amendment sheets (excluding errata) or revised versions are not applicable to this standard. However, parties reaching agreements based on this standard are encouraged to investigate whether the latest versions of these documents can be used. For undated referenced documents, the latest versions apply to this standard. - JJF 1587: "Specification for the Calibration of Digital Multimeters" - JJG (Military) 200: "Procedure for the Verification of DC Microammeters" - JJF 1071: "Rules for the Preparation of National Metrological Calibration Specifications" - JJF 1059.1: "Evaluation and Representation of Measurement Uncertainty" 3. Terms and definitions: No provisions in this chapter. 4. Overview: A fly-level DC microammeters is mainly composed of an electrostatic amplifier with high input impedance and low input bias current, and different feedback loops. Through relay switching, a measurement circuit is formed to convert the measured current into DC voltage, and then through an analog-to-digital converter, the measured current value is calculated and displayed. It is a precision instrument that can measure ±200 fA to ±20 mA DC microcurrents, and is widely used in nuclear radiation detection, electrochemical measurement, mass spectrometry, and many other fields. 5. Metrological characteristics: The maximum allowable error in current measurement is expressed by Equation (1): IMPE = ± (a% Ix + b) (1) where: - IMPE: Maximum allowable error in current measurement, A; - a: Error coefficient related to the reading; - Ix: Measured and displayed v