Michell Instruments ES20 Specifications
Dew-Point Sampling
Dew-Point Sampling
ES20 Compact Sampling System
Stainless Steel Sampling System
The ES20 Compact Sampling System is designed to reliably and accurately measure dew point
or moisture content in a wide variety of industrial gas applications up to 20 barg. This sampling
system is an economical and high quality solution with a short lead time.
Highlights
• Process connection via 6mm or 1/4” tube fi ttings
• Dew point, moisture content, fl ow, contamination
and pressure control
• Sample inlet pressure up to 20 barg
• Modular design
• Stainless steel tubing and fi ttings
• Flexible fi ltration options
• High quality components
• Designed for challenging process environments
• Optional displays
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Applications
• Compressed air dryers
• Pneumatics
• Plastic moulding
• Instrument air
• Hydrogen coolants
• Breathing air
• Pure feed gases
• Heat treatment gases
• Inert gases
Dew-Point Sampling
ES20 Compact Sampling System
A Reliable Sampler for Moisture
Michell Instruments designs and manufactures a broad
range of sampling systems for a wide spectrum of industries
and processes from the economical compressed air market,
to the demanding oil and gas process market.
The ES20 sampling system is a standard modular, highquality product designed to address the needs for fi ltration,
pressure, and fl ow control.
High Quality Materials
To ensure continuous and reliable dew-point or moisture
measurement, it is important that the dew-point transmitter
is exposed to stable conditions of the gas being monitored.
The ES20 sampling system utilizes high quality materials
(gas wetted parts) which provide the optimum response to
moisture changes in the process.
Filtration Flexibility
If the gas contains impurities it is crucial to remove the
contaminants before they reach the sensing device. The
ES20 is supplied with a fi lter housing, into which recyclable
particulate or coalescing fi lter cartridges can be inserted.
Filtration methods:
• Particulate fi lter (solid contaminants)
• Coalescing fi lter with adjustable drain
(solid and liquid aerosol contaminants)
• HDPE guard (fi lter) for sensing element (standard)
• Air fi lter with optional vacuum pump (standard)
Pressure Control and Measurement
Pressure has a direct effect on dew point. The ES20 utilizes
a set of confi gurable components for atmospheric or process
system line pressure dew-point measurement.
Pressure control features:
• Pressure gauge (dual scale: bar and psi)
• Metering valves (needle valve type)
• Self-regulating vacuum pump
Mounting Variants
Depending on the application, the sampling system can be
supplied in 3 variations:
• Mounted on base plate
• Mounted on base plate inside a windowed GRP enclosure
• Mounted on base plate inside a windowed SS enclosure
(316 stainless steel)
System Designs
Michell Instruments has over 40 years of experience
providing dew-point and moisture measurement solutions.
Our sampling system designs ensure that dew-point and
moisture measurements can be performed in the most
suitable conditions.
The ES20 compact sampling system can be supplied in
various confi gurations and can be used in conjunction with
other Michell products, as follows:
• Easidew Transmitter
• Easidew I.S. Transmitter
• Easidew PRO I.S. Transmitter
• Easidew PRO XP Transmitter
• Easidew Online Hygrometer
• Cermet II Hygrometer
Documentation Package
Every ES20 is supplied with a CD-ROM containing the
following supplementary fi les for your sampling system:
• Manual
• Datasheet
• Flow diagrams
• Material certifi cation (optional)
• EC declaration of conformity
For add-on products such as transmitters or hygrometers (as
mentioned above), a printed manual of the specifi c product
is included with documentation.
Flow Control
The fl ow rate of a gas can affect the transmitter’s response
time. Every sampling system contains a set of components
which help maintain optimum fl ow (1 to 5 liters per minute).
Flow control:
• Flowmeter
• Metering valves (needle valve type)
• Flowmeter with needle valve (with vacuum pump only)
System Customization
If your application requires a customized solution, we have
a specialized design and manufacturing facility to cover your
requirements. Please contact us for more information.
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