4200 Series Flow Meters - Isco

4210 Ultrasonic Flow Meter
The 4210 Ultrasonic provides non-contact sensing of the flow over a weir.
The sensor on the 4210 Ultrasonic Flow Meter
is mounted above the flow stream. It transmits
a sound pulse that is reflected by the surface
of the flow. The elapsed time between sending
a pulse and receiving an echo determines
the level in the channel. A built-in temperature
sensor automatically compensates
for changes in air temperature to ensure
measurement accuracy.
Non-contacting Sensor
Because its sensor does not contact the liquid, the
4210 provides long-term dependability with no
scheduled maintenance. The Isco 4210 is not
affected by chemicals or high concentrations
of grease, suspended solids, or silt in the flow.
Accurate Under Tough Conditions
The 4210 automatically adjusts amplifier gain
in response to echo strength. This patented*
technology maximizes performance in the
presence of steam, foam, and turbulence.
Our Variable Blanking Distance feature eliminates
false echo problems caused by obstructions such
as manhole rungs or the top of a flume.
*US Patent No. 5,319,974
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