Flexim PIOX S721 – Ultrasonic Density Meter for Liquids

The Flexim PIOX S721 ultrasonic density meter determines the concentration and density by means of clamp-on ultrasonic transducers mounted on the outside of the pipe. The non-intrusive technology found in this inline density meter is the system of choice when substances and processes place highest demands on safety and reliability. The sound velocity sensor PIOX S measures in real time the speed of sound through liquids. In binary liquids such as acids or sodas, the acoustic velocity is in a fixed proportion to concentration and density. PIOX S measures the sound velocity, thereby measuring the inline density and concentration of the medium.

Measuring Quantities
Sound velocity
concentration g/l, mass and vol.%,
density
additional quantities programmable
Measurement Range
1000-2500 m/s (0-100 w%)*
Repeatability
0.1 w%* (0,5m/s)
Process Temperature
-60 °C … +400 °C**
Fluid Pressure
3000 bar
Certifications/Approvals
Ultrasonic Transducers: IP67, ATEX (IECEx) zone 0,/1
Transmitter S721: aluminum or stainless-steel enclosure, IP66, ATEX (IECEx) zone 2
Housing Material
Stainless Steel 304 (1.4301)
Process Connection
Clamped onto the pipe with Variofix system
System configuration and Installation
Cleaning systems not required
System Configuration and Installation
* For most waterbased solutions and common working point
** additional wave injector required

 

Brochure: Flexim Non-Intrusive Ultrasonic Flow and Thermal Energy Meters

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