Bronkhorst®
Instruction Manual ES-FLOW™ 1xxC
9.17.153A
7
1
Introduction
1.1
Scope of this document
The
ES-FLOW™ 1xxC
is a precise and compact volume flow meter/controller for liquids, based on a novel ultrasonic
technology. A wide range of liquids can be measured independent of fluid density, temperature and viscosity.
Measuring is done in a straight tube, where multiple transducers measure both the surface acoustic wave and the transit
time through the media. All upstream and downstream combinations are recorded and processed in nanoseconds. The
sound wave velocity and the surface area are recalculated to the volume flow rate. This ultrasonic measuring method is fast,
accurate and inherently bi-directional.
The ES-FLOW™ 1xxC can be operated with analog signals or digitally with RS-232 communication (ProPar) or an extensive
range of fieldbus protocols. An on-board PID controller can be used to drive a control valve or pump, establishing a
complete yet compact control loop.
This document covers general product information, installation and operating instructions and troubleshooting tips for the
ES-FLOW™ 1xxC.
1.2
Intended use
The
ES-FLOW™ 1xxC
has been developed to accurately measure and/or control volume flow rates of liquids in a fluid
system, with high precision and a limited pressure drop. The device is suited for general purpose indoor (dry) applications,
like laboratories and machine enclosures.
Any other use than mentioned here is considered unintended.
Responsibility for the use of the equipment with regard to its intended use, suitability for the intended application,
cleaning and compatibility of process media with the applied materials lies solely with the end user.
Bronkhorst High-Tech B.V. cannot be held liable for any damage and/or injury resulting from unintended, improper or
unsafe use, or use with other media and/or under other process conditions than specified at ordering time.
