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The Flexim PIOX S731 is a cutting-edge liquid analyzer that measures both the concentration and density of liquids using clamp-on ultrasonic sensors affixed externally to the pipeline. This non-intrusive design is ideal for applications where safety and system integrity are paramount, especially in demanding process environments.

By analyzing the speed of sound in the liquid and factoring in temperature, the PIOX S determines fluid density in real time. In the case of binary mixtures—such as chemical solutions like acids or caustics—the sound velocity has a direct correlation with both concentration and density, enabling precise monitoring.

The system employs the transit time difference principle to determine volumetric flow, allowing it to calculate mass flow even when fluid quality fluctuates. This makes the PIOX S731 a highly versatile tool for process optimization and control across a wide range of industries.

Ultrasonic Clamp-On Flow Meter Rentals

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Flexim PIOX S731 Non-intrusive Ultrasonic Analyzer for Liquids

Specs

Fluid type
All liquids
Measuring Quantities
Sound velocity concentration g/l, mass and vol.% density additional quantities programmable Mass flow
Accuracy
Instrument requires field calibration*
Repeatability
0,1 w%*
Process Temperature
-40 to 200°C (-40 to 392°F) / WI: -200 to 630°C (-328°F to +1112°F)**
Certifications/Approvals
ATEX/IECEx Zone 2, FM Class I Div. 2
Power supply
100-230VAC, 24DC, 12DC
Pipe Size
6 to 6500 mm (0.24 to 255.9 in)
Output
4-20mA active/passive
4-20mA HART active/passive
pulse/frequency/binary
Input
Pt100/Pt1000
4-20mA active/passive
Binary input
Communication Protocol
Modbus RTU/TCP
BACnet MSTP/IP
Profibus PA
FOUNDATION Fieldbus

Features

  • For all pipe materials - glass, steel, plastic and more
  • For almost all acids, caustics and a wide range of other toxic liquids
  • For ATEX, IECEX and FM areas
  • No shut down for installation
  • Maintenance-free