The Flexim PIOX S831 liquid mass flow meter determines the mass flow of liquids by means of clamp-on ultrasonic transducers mounted on the outside of the pipe.
The non-intrusive technology is the system of choice when substances and processes place highest demands on safety and reliability. The PIOX S dynamically infers the fluid’s density using its sound speed and temperature and therefore can provide mass flow in liquids of varying quality. In binary liquids such as acids or sodas, the acoustic velocity is in a fixed proportion to concentration and density. This digital mass flow meter measures the sound velocity, thereby determining the density and concentration of the medium inside the pipe.
Flexim PIOX S831
Flexim PIOX S831 - Non-intrusive Ultrasonic Analyzer for Liquids in Hazardous Zones

Specs

Range
Flow Velocity Range: 0.03 to 82 ft/s
Fluid type
All liquids
Measuring Quantities
Sound velocity
concentration g/l, mass and vol.%
density
additional quantities programmable
Accuracy
Instrument requires field calibration*
Repeatability
0,1 w%*
Process Temperature
-40…200 °C (-40…392 °F) / WI: -200…630 °C (-328 °F…+1112 °F)**
Certifications/Approvals
ATEX/IECEx Zone 1 / Zone 2, FM Class I Div. 2
Power supply
100-230VAC, 24DC, 12DC
Pipe Size
6…6500 mm (0.24...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
System Configuration and Installation
For more detailed information please download the Technical Specifications
* For most water based solutions and common working point
** Waveinjector required additionally
Flow related specification
See FLUXUS F831

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
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