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NG # 06410003-HW-FLEXIM-003
FLEXIM PIOX S831 is a non-intrusive ultrasonic liquid analyzer designed for measuring mass flow, density and concentration in industrial processes. Using external clamp-on transducers, it enables reliable measurement of aggressive, corrosive and toxic liquids without direct contact with the process medium, pipe modifications or production shutdown.
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Get A QuoteThe PIOX S831 combines ultrasonic flow measurement with sound velocity and temperature analysis to determine liquid density and concentration. It supports bidirectional mass flow measurement and is suitable for applications involving acids, caustics, brines and other process liquids. Its explosion-proof transmitter housing, intrinsically safe inputs and corrosion-resistant transducers make it suitable for hazardous industrial environments, particularly in chemical processing, petrochemical, oil and gas, pharmaceutical and food industries.
Measuring principle: Ultrasonic transit-time measurement
Measuring quantities: Mass flow, volumetric flow, density, concentration, sound velocity and flow velocity
Flow velocity range: 0.01 … 25 m/s
Pipe diameter: 10 … 6,500 mm
Mass flow uncertainty: ±1.2% of reading
Mass fraction repeatability: ±0.1 wt%
Density repeatability: ±1 kg/m³
Process temperature: −40 … +240 °C; up to +630 °C with WaveInjector
Measuring channels: 1 or 2
Transmitter housing: Aluminium or stainless steel 316L
Inputs: Current, temperature and binary
Outputs: 4–20 mA, HART, pulse, frequency and binary
Communication: HART, Modbus RTU/TCP, Profibus PA, Foundation Fieldbus and BACnet
Hazardous-area approvals: ATEX/IECEx Zone 1, FM Class I Division 1
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