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you need a monitoring system that’s accurate, versatile
and easy to use, turn to the latest generation of open channel
flow meters from Isco. Our 4200 Series is backed by 20
years of experience in flow measurement. You can depend on Isco
technology to meet your needs in an increasingly complex monitoring
environment. |
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Maximum
Accuracy: Nothing
else matters if your flow meter can’t measure flow accurately.
But inaccuracies result when a single measurement technology
is used in a variety of applications. The 4200 Series offers
you a choice of four measurement technologies, so you can select
the flow meter best suited for your site conditions.
Maximum
Versatility: Today, you need a monitoring system with
the versatility to perform in a variety of situations. For example,
you may be required to collect flow-proportioned samples. Or
you may be required to monitor parameters such as pH, dissolved
oxygen, conductivity, or temperature. In storm water monitoring,
you need to measure rainfall. You may need to be notified when
an alarm condition occurs. And in many applications you need
to control a process, such as chlorination and pH neutralization.
Versatile Isco Flow Meters satisfy all of your needs! Convenient
options customize the 4200 Series for your specific portable
and fixed-site applications.
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Choose
the Best Technology |
No single technology is suitable for all open channel flow measurement
applications. Only Isco offers you a choice of ultrasonic, submerged
probe, bubbler, and area velocity flow meters. The 4200 Series
includes the 4210 Ultrasonic, 4220 Submerged Probe, 4230 Bubbler
and 4250 Area Velocity Flow Meters. Now you can choose the most
accurate technology for each of your monitoring sites.
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4210
Ultrasonic — for flow measurement in streams containing
harsh chemicals, grease or suspended solids. The ultrasonic
sensor is mounted above the flow stream and requires no scheduled
maintenance. The 4210 measures the level in the channel by transmitting
a sound pulse from the sensor and measuring the time for the
echo to return from the flow stream surface. The level is then
converted into flow rate.
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4220
Submerged Probe — ideal for sites where wind, steam,
foam or turbulence exist. The probe is mounted at the bottom
of the channel and measures the pressure of the liquid above
the probe to determine the depth of the flow stream. The 4220
converts the level reading into flow rate.
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4230
Bubbler — resists damage by lightning, debris and
corrosive flow stream chemicals. The 4230 uses an internal air
compressor to force air from a bubble tube submerged in the
flow stream. The depth of the flow is determined by measuring
the pressure needed to force bubbles out of the line. The 4230
then converts this depth into flow rate.
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4250
Area Velocity — for sites where submerged, surcharged,
full pipe or reverse flow conditions may occur. The 4250 sensor
is mounted at the bottom of the channel and uses Doppler technology
to directly measure average velocity throughout the flow stream.
An integral pressure transducer measures depth to determine
flow area. The 4250 calculates flow rate by multiplying the
area of the flow stream by the average velocity.
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© Envitech
Ltd: 2005 |
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