YST Liquid Flow Meter YST183F-A50XL

Overview

The YST Liquid Flow Meter YST183F-A50XL is an industrial-grade electromagnetic flow meter engineered for continuous, non-intrusive volumetric flow measurement of conductive liquids in fixed-pipe installations. Based on Faraday’s law of electromagnetic induction, the device generates a voltage proportional to the average fluid velocity across a known cross-sectional area—enabling high-reproducibility flow quantification without moving parts or pressure drop. Designed for deployment in municipal water infrastructure, food & beverage processing lines, and general chemical transfer applications, it delivers stable performance under variable flow conditions and moderate ambient exposure. Its dual-output architecture (4–20 mA + RS485) ensures seamless integration into PLC-based SCADA systems, DCS networks, and standalone data loggers—supporting both real-time process control and long-term trend analysis.

Key Features

• Electromagnetic sensing principle with no mechanical obstruction—eliminates wear, clogging risk, and flow profile dependency.
• Wetted path constructed entirely from ASTM A240 316L stainless steel, certified compliant with FDA 21 CFR §178.3570 for indirect food contact and resistant to chloride-induced pitting in municipal and light industrial effluents.
• Robust 304 stainless steel enclosure rated IP65 per IEC 60529—suitable for indoor/outdoor mounting in non-hazardous environments with dust and water spray exposure.
• Dual-signal output interface: isolated 4–20 mA current loop (HART-compatible wiring configuration) and RS485 serial communication supporting Modbus RTU protocol (slave ID configurable, baud rates up to 115.2 kbps).
• Integrated signal conditioning firmware with adaptive noise filtering algorithms—optimized for suppression of electromagnetic interference (EMI) from adjacent VFDs, pumps, or welding equipment.
• Fixed-range calibration traceable to national metrological standards; factory-set zero point verified under static liquid conditions prior to shipment.

Sample Compatibility & Compliance

The YST183F-A50XL is validated for use with liquids exhibiting minimum conductivity ≥5 µS/cm—covering potable water, soft drinks, fruit juices, ethanol-water mixtures, glycol solutions, and common organic solvents such as acetone and methanol. It is not suitable for hydrocarbons, deionized water, or non-conductive oils. All wetted components comply with ISO 8502-3 for surface cleanliness and EN 10204 3.1 material certification documentation is available upon request. While not intrinsically safe or explosion-proof, the meter meets CE marking requirements under the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. For GMP-regulated facilities, audit-ready installation qualification (IQ) and operational qualification (OQ) templates are provided in English, aligned with Annex 15 of EU GMP guidelines.

Software & Data Management

Configuration and diagnostics are performed via the optional YST-ConfigTool PC application (Windows 10/11), which supports parameter setup—including damping time (0.1–10 s), flow direction correction, totalizer reset, and pulse output scaling. The RS485 interface enables direct connection to historian platforms such as Ignition SCADA, Siemens Desigo CC, or custom Python-based data ingestion pipelines using PyModbus libraries. All configuration changes are logged with timestamp and user ID (where enabled), satisfying basic ALCOA+ data integrity expectations. Though not Part 11 compliant out-of-the-box, the device supports external validation protocols when deployed behind validated system-level access controls and electronic signature workflows.

Applications

• Municipal wastewater influent and effluent monitoring—integrated into pump station telemetry systems for daily volume reconciliation and regulatory reporting (e.g., EPA NPDES compliance).
• Batch ingredient dosing in beverage manufacturing—precise syrup, acidulant, or preservative injection control with ≤±1.0% reading accuracy over 10:1 turndown ratio.
• Coolant flow verification in metalworking facilities—detecting pump degradation or filter clogging through trending of baseline flow resistance.
• Chemical feed control in swimming pool treatment plants—maintaining consistent chlorine or pH adjuster dosage based on recirculation rate.
• Utility submetering in multi-tenant commercial buildings—supporting LEED EBOM water use optimization credits via hourly consumption aggregation.

FAQ

What is the minimum fluid conductivity required for reliable operation?
The meter requires ≥5 µS/cm conductivity; distilled water (<0.5 µS/cm) and most hydrocarbon fuels are incompatible.
Can this flow meter be installed vertically or only horizontally?
It supports both orientations, but full pipe fill must be maintained at all times; vertical upward flow is preferred to avoid air entrapment.
Is field recalibration possible without returning the unit to the factory?
Zero calibration can be performed in-situ with static liquid; span calibration requires traceable master meter comparison and is typically conducted during annual maintenance.
Does the device support pulse output for mechanical totalizer interfacing?
No—pulse output is not implemented; totalization is handled digitally via RS485 register reads or analog integrator modules downstream.
What documentation is included with shipment?
Each unit ships with CE Declaration of Conformity, material certificates for 316L/304 SS, factory calibration report (reference fluid: water at 20°C), and English-language installation & operation manual.