T/SJZJLXH 0009-2020 Active Group standards

T/SJZJLXH 0009-2020 The calibration specifications for on-site flow measurement systems

Publish Date: 2020-08-20 Implement Date: 2020-09-20 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/SJZJLXH 0009-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Industrial automation instrumentation and control devices

ICS Name: The comprehensive measurement of fluid flow

Publish Date: 2020-08-20

Implement Date: 2020-09-20

Scope

Main technical contents: 1. Power failure protection: In the on-site flow measurement system, the flow meters, differential pressure transmitters, pressure transmitters, and temperature transmitters can reliably preserve data such as internal parameters and accumulated flow (initial value) during power outages. 2. Sampling period: The time interval between two consecutive samples, unit: s. 3. Small signal elimination: A function set in flow meters and differential pressure transmitters in the on-site flow measurement system to overcome interference and zero drift or to ensure the normal operation of the flow system. When the signal is below a certain value, the meter processes it as zero; when it exceeds this value, the meter operates normally. 4. The on-site flow measurement system calculates the flow (energy) using mathematical models by collecting signals from flow-related sensors. The system consists of various online (or offline) flow meters (including PLCs, DCSs, flow meters, and various flow sensors and transmitters), pressure transmitters, and temperature transmitters, etc.