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Welcome to
the world of measurement & sensors technology.
Read up-to-date measurement & sensors technology news and search for worldwide manufacturers, suppliers
of sensors, detectors & measuring devices.
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The Sensor to Business -
sensors & measurement database:
Find sensor manufacturers, sensor suppliers
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Applications,
measured properties:
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Sensors & measuring systems for
temperature, humidity, weather
(e.g.: humidity sensors, humidity transmitters, humidity
measurement, air pressure sensors, atmospheric sensors, climate sensors, dew
point sensors, heat flow sensors, humidity sensors, meteorological sensors, rain
sensors, smoke detection sensors, solar sensors, temperature sensors, wind sensors, etc...)
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Sensors & Measurement news:
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Sensor & Measurement news in other languages |
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New System for Moisture Measurement |
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 Micro-Polar
II (LB 567) is the new moisture measurement system from BERTHOLD
TECHNOLOGIES, specifically developed for the measurement of bulk
materials. It provides online monitoring on conveyor belts or chutes and
can be easily installed at existing plants. The Microwave based
measurement operates completely non-contacting. The components are not
exposed to any wear and tear as the emitting antenna is mounted below
and the receiving antenna is mounted above the conveyor belt. Therefore
no maintenance is required. The measurement provides very representative
measuring results by the penetration of all material layers. Due to
technical improvements in frequency and frequency range, new
opportunities have become available for applications, which had been
restricted in terms of bulk density or particle size. Using the new
system, even high bulk layers can be penetrated due to the increased
dynamics. The multi-frequency technology used by Berthold Technologies
ensures a very stable and reliable measurement as several measuring
values are taken for different individual ... |
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Michell’s S8000 Integrale gives
drift-free dew-point measurements in vacuum |
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 Michell
Instruments: The S8000 Integrale cooled mirror hygrometer provides
highly reliable, drift-free dew-point measurements in vacuums as low as
0.05 mbar, making it unique in its category. It is ideal for
applications, such as oil refilling of transformers, which involve
vacuum pumping. Many high voltage transformers, especially those
switching many thousands of kVA (such as the types found in power plant
sub-stations), are filled completely with a refined mineral oil. This
serves several purposes; most importantly the oil must act as a main
part of the transformer’s insulation, though it also serves to cool the
transformer. Moisture inside transformers adversely affects the
dielectric and insulating properties of the oil. Vacuum pumping the
transformer enclosure is a common practice in the industry, with the
sole purpose of minimizing the total moisture content prior to oil
filling. ... |
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Michell Instruments develop twin condumax
– a unique design to meet needs of a leading energy company |
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 Michell
Instruments have been working with a leading energy company to
develop a unique control solution for their natural gas storage site in
the UK. The company required total security in their hydrocarbon
dew-point readings, so Michell developed the Twin-Condumax II Sampling
System to provide this with complete confidence. Employing two Condumax
II EExd Hydrocarbon dew-point analysers means that there is always the
reassurance of a reference instrument to confirm readings. The other
advantage to this system is that it can be used continually, with no
interruption in measurements caused by routine maintenance or other
potential disruptions. The Michell System Engineering Division packaged
the two analysers complete with their comprehensive sample conditioning
systems into a single common enclosure, to satisfy the space limitations
stipulated by the customer ... |
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Michell’s new sensor makes recalibration
and maintenance as easy ‘as changing a light bulb’ |
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 Michell
Instruments’ I7000 ‘Hygrosmart’ humidity sensor makes the
maintenance of their relative humidity instruments quick and simple with
no down-time. The interchangeable module incorporates all calibration
data and is delivered together with a calibration certificate. To ensure
continued measurement accuracy over time, the user can ‘recalibrate’ an
instrument by simply replacing the old sensor with a new one. The
process is as quick and simple as changing a light bulb and no
specialist training is required. The new I7000 Hygrosmart
interchangeable module forms the base of a complete range of temperature
and humidity instruments, suitable for applications from precision
manufacturing to controlled environments and HVAC. With the current
levels of technology most manufacturers now provide the same level of
reliability, accuracy and longevity in their RH instruments. But the
majority of these instruments still require ... |
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Michell launches smallest and fastest
portable in range |
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 Michell
Instruments’ new MDM300 Advanced Dew Point Hygrometer demonstrates
that size really does matter. At just 21cm by 17cm, weighing 1.5kg, and
with a battery life of up to 48 hours typical usage, it enables the user
to take field measurements with the minimum of fuss. New developments in
Michell’s ceramic sensor technology have dramatically reduced the
response time for low dew points, allowing for many more measurements to
be taken each day. The MDM300 also has an innovative ergonomic design,
with all the buttons easily accessible while the instrument is held
comfortably in both hands. All measurement parameters are available at
the touch of a button and the password protected set-up menu is simple
to navigate and intuitive to use. Both instrument set-up and downloading
of logged data are easy with a Bluetooth connection that comes as
standard. To maximize flexibility, external sensors can be easily
connected and used to measure and display pressure and temperature.
These parameters can also be used to provide pressure and temperature
compensated measurements ... |
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DataNet Network for Government Monitored
Umbilical Cord Blood Lab |
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Fourier Systems Ltd.: The DataNet system application is an
umbilical cord laboratory where cord blood stem cell research is carried
out and cord blood is stored. The Taiwanese government requires daily
reports on the laboratory's deep cold refrigerators and room humidity
and temperature environment status. To meet the government requirements
they needed a computerized solution that could measure and produce
printed reports via the lab computer system. The lab decided that the
DataNet solution features were most appropriate in helping them respond
to Ministry of Health's strict regulations. Umbilical cord blood is
considered a key resource in stem cell research. Until recently
umbilical cord blood was considered medical waste to be disposed of
after the birth of a newborn, however today medical perceptions have
dramatically changed. Today umbilical cord blood and the plentiful
cryopreservation of the stem cells found in the cord blood are
considered life saving. Umbilical cord blood is a 100 percent biological
match to the newborn. Commonly the blood is now used in stem research
and stored in specialized cord blood banks. These specimens perform two
potentially valuable functions. They can help future patients in need of
stem cell transplants or act as a private source for the newborn child
and their family. A simple network has been applied and utilizes five
DNL920 loggers, one DNL910 and one Receiver. The external PT100
temperature sensor measures room temperature and the internal RH sensor
monitors humidity inside the laboratory. Additional sensors including
thermocouple temperature sensors, with a range as low as -80º C, are
used to ... |
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New cooled mirror hygrometer for
anti-icing systems of gas turbines |
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 The
new generation of the Optidew Hygrometer from Michell Instruments
was designed especially for applications in anti-icing systems for
stationary gas turbines. In power generation plants located in
environments with low temperatures and high relative humidity, there is
a risk of ice forming in the air intake systems, leading to many
potential problems. Firstly the accumulation of ice on the filter
elements will block the filter and lead to loss of power through a drop
of pressure and reduced mass flow. In turn this will lead to reduced
thermal efficiency. In extreme cases, chunks of ice may be ingested into
the compressor and cause physical damage to the turbine. Protecting
against icing is vital to prolonging the life and efficiency of the gas
turbine. Ice protection systems vary between de-icing and anti-icing,
the latter usually featuring a precision hygrometer such as the new
Optidew for Anti-icing Systems. Applying the fundamental cooled-mirror
measurement principle, it delivers a repeatable, drift-free dew point or
relative humidity measurement. The robust design of the new Optidew
hygrometer ... |
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Compact Transmitter for Moisture in Oil
Measurement |
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 The
NEW Series EE381 transmitter from E+E Elektronik enables precise
measurement of moisture content in oil in the range 0…1 aw at
temperatures from -40...80°C (-40…176°F). The specifically for that
application designed monolithic humidity sensor / temperature sensor element
provides outstanding accuracy and very good long-term stability. Fast
response time and high resistance against chemical contamination are the
main features of this sensor element HMC01, developed in thin film
technology by E+E Elektronik. Measured variables are water activity aw
[0…1], temperature T [°C or °F] and the calculated water content x [ppm].
The EE381 can be adjusted for measurement of non-mineral oils by
entering the particular oil-specific parameters. The sensing head is
pressure tight up 100 bar (1450 psi) and can be mounted either with a
G½” ISO or a ½” NPT thread. The rugged, compact metal housing of Series
EE381 is rotatable over the full 360 degrees, allowing positioning for
excellent readability of the optional dual-line display and easy
accessibility of the robust industrial electrical connector - even in
difficult mounting situations. Both analogue outputs are freely scalable
and configurable. It is possible to have the transmitter equipped with
switching outputs. Status indicators ... |
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Michell acquires Coreci relative humidity
business |
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Michell acquired the relative humidity business of the Italian
Control and Automation company, Gefran SPA. Originally the business,
located in Lyon, France, was known as Coreci S.A. It was taken over by
Gefran in 1998. For 25 years, Coreci has been a major force in the
relative humidity market, with a reputation for high quality relative
humidity sensors and advanced electronics. The Coreci operation will
continue to operate and develop in Lyon as a division of Michell SARL,
(Paris, France). This acquisition strengthens Michell’s position as a
leader in the field of humidity and moisture sensing and, in combination
with the technologies and strengths of our sister company Rense
Instruments, will enable us to offer the widest range of competitively
priced relative humidity products with high performance specification. ... |
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SF Series from Michell Instruments
provides cost-effective means to control moisture |
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 The
new SF Series from Michell Instruments offers a step forward in
the cost-efficient control of moisture via dew point measurement in all
industrial areas where increased energy savings and efficiency create a
unique competitive advantage. In applications such as refrigeration
dryers the process is often controlled using temperature measurement.
Adding an efficient moisture control via dew point measurement enhances
the efficiency of the process and allows significant savings in energy
costs. With a measurement range of –40 to +60°C dp the SF Series dew
point transmitter satisfies customers’ needs for precise and stable
measurement not only in the refrigerant dryer industry but also in a
range of other energy critical applications like pneumatic systems. The
SF series trace moisture sensor can be mounted directly into the output
of the dryer and is protected by a HDPE disk filter, which prevents
contamination of the sensor by particulate matter without disturbing the
sample flow. Although small in size the SF series dew point transmitter
safely works in pressures up to 20 bar.
... |
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Compact, Multifunctional Dew Point
Transmitter for Measurements down to -80°C Td |
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 The
new dew point transmitter Series EE371 from E+E Elektronik
enables dew point temperature measurements in the range from -80 to
+60°C (-112….140°F). The auto-calibration feature and the specifically
for these applications designed dew point sensor element provide
outstanding accuracy and very good long-term stability. Wettability,
fast response time and high resistance against chemical pollutants are
the main features of this sensor element HMC01, developed by E+E
Elektronik in thin film technology. The sensing head is pressure tight
up 100 bar (1450 psi) and can be mounted either with a G½” ISO or a ½”
NPT thread. The rugged, compact metal housing of Series EE371 is
rotatable over the full 360 degrees, allowing positioning for excellent
readability of the optional dual-line display and easy accessibility of
the robust industrial electrical connector - even in difficult mounting ... |
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Top-7 Sensors &
Measurement News |
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Find all sensor & measurement suppliers &
news
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Sens2B - Sensor to Business
100% Sensors,
Instruments &
Measuring Devices |
The International Sensors,
detectors & measurement Portal
Manufacturers and suppliers of sensors & measurement devices |
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A
selection of recently
published
technical articles & products
in the field of:
Humidity
sensors / humidity transmitters /
dew point sensors / hygrometers / humidity measurement
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Find
all manufacturers and suppliers of humidity sensors, dew point sensors
humidity transmitters, humidity measurement devices |
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Relative Humidity and Dew Point solutions
from Michell |
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 Michell
Instruments have released a new edition of their moisture and
humidity product catalogue, which contains comprehensive information on
their range of relative humidity transmitters and sensors, dew point
transmitters and humidity calibration instruments. As well as
information on new products such as the MDM300 portable dew-point
hygrometer and PC62 relative humidity probe, the catalogue also contains
a handy guide to the measurement of humidity, which explains common
equations as well as terms and conventions ... |
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New Condensation Monitor Series EE46 from
E+E Elektronik |
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 E+E
Elektronik: Cooling ceilings, critical areas in HVAC and technical
installations, which are operating close to the dewpoint temperature,
need an early alarm system against the forming of moisture, because of
the potential danger of condensation. The new condensation monitor EE46
from E+E Elektronik is specially designed for such applications and can
be installed in a few seconds on pipelines, walls, and ceilings. The
early detection of “danger of condensation” and as a result the
immediate start of counter measures renders this product as very
significant. A special coating protects the sensor and electronics
against dirt and dust – a guarantee for a longstanding, stable and above
all maintenance free operation. The fast response, high accurate E+E
humidity sensor is exposed to the temperature of the surface of the
object by means of a thermal conducting foil. Therefore, the humidity
sensor measures the same relative humidity as ... |
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Transportable chilled mirror instrument
from Michell: drift-free precision is now portable |
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 When
a leading manufacturer of desiccant dryers decided that they needed a
transportable chilled-mirror dew-point instrument to certify the
functionality of their dehumidification systems, they turned to
Michell Instruments for a solution. The result is the Optidew
Transportable, which combines the drift-free performance of the chilled
mirror principle with the convenience of a transportable instrument.
Housed in a specially-designed case, the instrument is both fully
self-contained as well as small and light. For the client, having an
instrument that was easily transportable was vital because of the range
of situations where their dryers are installed. Desiccant de-humidifiers
create dry air which can be used in a variety of applications such as
the leisure industry for swimming pools and sports halls, various
utilities such as power stations and water treatment works, desiccant
cooling for air conditioning systems or within the chemical, food and
pharmaceutical industries. The Optidew Transportable allows engineers to
check the reliability of their installations over time, and give their
customers peace of mind in their choice of dryer – whatever the
application. The Optidew dew-point hygrometer works on the proven,
fundamental optical dew-point measurement principle ... |
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Rugged I.S dew point transmitter with
ATEX certification from Michell Instruments |
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 Michell
Instruments has added to its range of Easidew dew-point transmitters
with the Easidew PRO I.S., a rugged, intrinsically safe transmitter
suitable for use in the natural gas, petrochemical and process
industries where a rugged transmitter is required. A natural progression
from the Easidew TX I.S., the Easidew PRO I.S. is certified by ATEX for
use in hazardous area zone 0, as well as for use with galvanic
isolators. Like the other transmitters in the Easidew Range, the Easidew
PRO I.S. is part of the Sensor Calibration Exchange Programme – enabling
customers to maintain traceability through periodic recalibration while
keeping the process in operation. Signing up to the programme means that
customers can order a new sensor, install it and then send back the old
one to Michell for recalibration at a fraction of the cost of completely
replacing the sensor – with the added benefit of no down-time. The key
to the success of the exchange programme is the innovative Easidew
sensor technology. ... |
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New Advanced Quartz Crystal Microbalance
Trace Moisture Analyzer Available From Michell Instruments |
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 Michell
Instruments has expanded its range of sensing technologies by
introducing the advanced quartz crystal microbalance technique for
moisture measurement in gases. The PMA2030 quartz crystal analyzer is an
ideal quality monitoring tool for air separators, industrial and high
purity gas production processes. The analyzer is designed to provide
highly reliable, fast and accurate measurement at trace moisture levels
(ppbv and ppmv). The quartz crystal sensor of the PMA2030 will give a
63% response to a step change in moisture in less than 2 minutes (95% in
less than 5 minutes). The wide operating range – from 0.1 to 2000 ppmV –
coupled with the fast response of the PMA2030 helps to monitor and
protect processes to avoid damage to tools or finished products by
enabling users to react quickly to fluctuations in moisture. Crucially,
the new analyzer provides measurements that can be trusted throughout
its operational life. Michell’s advanced quartz crystal technology,
developed and refined over many years, gives a highly reproducible and
linear response to changes in moisture content. This allows the PMA2030
to deliver class-leading accuracy of 5% of measured value in the range
0.5 to 500 ppmV. Its automatic calibration system, using an internal
reference source, guarantees the sensor’s integrity and accuracy by
cancelling out the effects of ... |
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Michell Expands Calibration Lab to
Increase Hydrocarbon Dew-Point Analyzers Capacity |
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 Responding
to the demand for their process analyzers, Michell Instruments
has recently expanded their calibration laboratory for hydrocarbon
dew-point and process moisture analyzers, doubling its capacity. They
have also increased their team of engineers to help keep up with the
global demand for process analyzers. In the petrochemical industry, the
measurement of moisture content in a multitude of process gases and
liquids is one of the most difficult and demanding tasks for process
engineering. To maintain a certain moisture content or to avoid defined
moisture levels is crucial for a large number of chemical processes.
Michell’s state-of-the-art, on-line analyzers help to increase plant
efficiency and safety in many petrochemical sites across the globe – as
well as saving companies millions of dollars in maintenance and
down-time each year. Using the ‘dark spot’ principle, developed in
conjunction with Shell, the Condumax II hydrocarbon dew-point analyzer
is used to ensure natural gas quality at ... |
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Humidity Transmitter in Probe Design with
4 – 20mA Output in Probe Design from E+E Elektronik |
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 E+E
Elektronik: The new transmitter of the series EE061, in the form of
a slim probe, allows for the precise measurement of the relative
humidity in air from 0…100 %RH. The main challenge in the development
was to deal with the heat generated by the current output. The latest
microprocessor technology in combination with excellent temperature
compensation and a special design of the electronics have solved this
problem. The EE061 unifies outstanding measurement accuracy with a
compact design and a 4 – 20 mA current output. The electronic board
integrated in the probe is protected from external influences by a
potting compound of very high quality and therefore usable from -40 to
60 °C. In combination with the for years now proven quality of the E+E
coating of the humidity sensor, is the transmitter insensitive to dust,
dirt and condensation. The EE061 allows for stable long term
measurements in demanding applications like outside, in stables, storage
rooms, or greenhouses. All important information for the user is
engraved on the 160 mm long sensor probe by means of a laser and will be
still ... |
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Cut out the waiting with the MDM300
Advanced Dew-point Hygrometer |
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 Michell
Instruments’ MDM300 advanced dew-point hygrometer can save engineers
weeks of waiting time each year. Recent research into the operation of
Michell Instruments’ ceramic sensor technology has helped the MDM300
provide faster measurements. Dew points as low as -70°C can now be
measured accurately in less than 10 minutes – faster in many cases. This
super-fast response does not rely on the sensor being dried by a
desiccant, which means that every measurement is fast – not just the
first of the day – allowing for many more measurements to be taken each
day. However, this is not the only way in which the MDM300 cuts out
waiting. Efficient nickel metal hydride batteries and power management
circuitry provide the user with 48 hours of use between charges – giving
much more time in the field making measurements. In addition a flat
battery can be recharged to 90% of its full potential in just 20
minutes, thanks to the intelligent charger. With its Bluetooth
connection, the MDM300 connects wirelessly to a PC. This means no more
time lost in locating, untangling and plugging in cables. Set-up of the
instrument and downloading of logged data is therefore quick and simple.
A number of cost-effective and easily-portable sampling systems are
available for the MDM300 to ensure accurate measurements and help
prolong the life of the sensor ... |
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Michell unveils new Relative Humidity
Range |
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 Michell
Instruments has re-launched its Coreci and Rense ranges of relative
humidity instruments and sensors under the Michell Instruments brand. A
new catalogue containing the complete range, as well as dew point
transmitters and calibration instruments, is now available. Michell
acquired the Coreci RH division in 2008, adding their range of
innovative RH instruments and sensors to those of the Dutch company,
Rense Instruments, which Michell bought in 2006. ‘With so many new RH
products in Michell, it was time to review the whole range to ensure
that we were offering our customers the best possible choice of
products,’ said Robert-Jan Pouw, Product Manager for Relative Humidity
at Michell Instruments. The result of this review is a comprehensive
range of relative humidity sensors and calibration instruments,
including several which feature an interchangeable sensor module
designed to make regular maintenance simple to carry out. ... |
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New generation of digital humidity
sensors |
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 Sensirion
is launching its new generation of humidity and temperature sensors at
Sensor+Test 2009. The SHT21 conforms to the current trend of saving
space and reducing energy consumption. The new humidity sensor
incorporates the existing strengths of the successful SHT11 while
significantly enhancing and improving them. For instance, the SHT21
sensor not only features long-term stability, full calibration and a
digital interface, but also supports additional communication modes,
including analog modes. In addition, sensor reliability and performance
have been boosted by using advanced semiconductor technology. The QFN
components are resin encapsulated to minimize the sensor dimensions.
With a 3 x 3-mm footprint and a height of 1.1 mm, the sensor fulfills
practical every wish with regard to the compactness of integrated
sensors. Encapsulation of the semiconductor chip also provides reliable
protection against ambient conditions and thus increases the stability
of the sensor. Like the sensors in the SHT1x series, the SHT21 can be
processed in a reflow oven. It is correspondingly suitable for use in
mass production. ... |
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Dew Point Sensor Calibration Exchange
Program from Michell extended to the new Easidew TX I.S. |
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 Michell
Instruments are delighted to announce they have extended their
successful Sensor Calibration Exchange Program to the recently
introduced Easidew TX I.S. Dew Point Transmitter. The key to the
Michell’s Calibration Exchange Program is the innovative Easidew sensor
technology. Michell Instruments’ Advanced Ceramic Moisture Sensor is
coupled with advanced microprocessor based measurement circuitry to
produce a fully calibrated and interchangeable sensor transmitter. All
calibration data is stored within the transmitter’s flash memory and so
calibration exchange, or service, can be affected in seconds, even by
untrained personnel. The Easidew TX I.S. is simply disconnected, removed
from its sampling block and replaced by a new fully calibrated unit.
When periodic re-certification is required to maintain traceability.
Michell will organise an individual exchange programme for the customer,
so that the process is never out of operation. The Easidew TX I.S.
series is designed for ease of use, incorporating all the features the
user could want to make installation and operation as simple as
possible. Installation costs are minimal because of the transmitter’s
ruggedness and simplicity. On-going operating costs are low because of
the transmitter’s stability and reliability. For the first time, dew
point measurement ... |
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High pressure S8000 from Michell saves
money in compressed air and gas ... |
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 Michell
Instruments’ S8000 Integrale cooled mirror hygrometer is able to
cope with sample gas at pressures of up to 17 barg. This means a reduced
response time which can help save users time and money in dry
applications – such as compressed air and bottled gases – where low
dew-points are reached. Pressurising the sample speeds up the response
time because the gas will have a higher dew point than the same sample
at atmospheric pressure. This is because the water molecules are
squeezed closer together under pressure making the sample ‘wetter’ than
it would be at atmospheric pressure. For example, a pressure dew point
of -65°C at 17barg is equivalent to an atmospheric dew point of -100°C.
With the higher dew point under pressure, the S8000 is able to reach the
temperature and stabilise much fast than with the lower atmospheric dew
point. The response speed of the instrument has been further enhanced
with updates to the S8000 firmware to allow the tracking of any minute
dew point changes in the sample gas. All this is good news for
manufacturers of ... |
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New Dew Point Transmitter for Easy
Installation at pressures up to 450 bar |
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 The
Easidew T.X. dew point transmitter from Michell Instruments has
been enhanced to take accurate measurements in pressures of up to 450
bar or 6500 psi. The Easidew T.X. is a fully configured and calibrated
moisture transmitter that can be instantly incorporated into your air or
gas management and control system. It has been developed for ease of
use, incorporating all the features the user could want to make
installation and operation as simple as possible. Using the Easidew
transmitter makes measuring trace moisture and dew point is as
accessible as taking temperature and pressure readings. In the Easidew
T.X., the Michell Instruments’ Advanced Ceramic Moisture Sensor is
coupled with advanced microprocessor-based measurement circuitry to
produce a fully calibrated and interchangeable sensor transmitter.
Calibration exchange, or service, can be affected in seconds, even by
untrained personnel. The transmitter is simply disconnected, removed
from its sampling block and replaced by a new fully calibrated unit.
On-going operating costs are low because of the transmitter’s stability ... |
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Dew Point Sensor Calibration Exchange
Program from Michell extended to the new Easidew TX I.S. |
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Michell
Instruments are delighted to announce they have extended their
successful Sensor Calibration Exchange Program to the recently
introduced Easidew TX I.S. Dew Point Transmitter. The key to the
Michell’s Calibration Exchange Program is the innovative Easidew sensor
technology. Michell Instruments’ Advanced Ceramic Moisture Sensor is
coupled with advanced microprocessor based measurement circuitry to
produce a fully calibrated and interchangeable sensor transmitter. All
calibration data is stored within the transmitter’s flash memory and so
calibration exchange, or service, can be affected in seconds, even by
untrained personnel. The Easidew TX I.S. is simply disconnected, removed
from its sampling block and replaced by a new fully calibrated unit.
When periodic re-certification is required to maintain traceability.
Michell will organise an individual exchange programme for the customer,
so that the process is never out of operation. The Easidew TX I.S.
series is designed for ease of use, incorporating all the features the
user could want to make installation and operation as simple as
possible. Installation costs are minimal because of the transmitter’s
ruggedness and simplicity. On-going operating costs are low because of
the transmitter’s stability and reliability. For the first time, dew
point measurement ... |
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New Moisture in Liquid EExd Certified
On-line Analyser |
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 Michell
Instruments new LIQUIDEW EExd moisture in liquid on-line analyser
will be presented for the first time in the Middle East by Bin Saud
Technical Trading at Adipec (stand H77/66). LIQUIDEW EExd is a purpose
designed flameproof certified solution to on-line continuous moisture
measurement for petrochemical liquid applications. The instrument is
designed to be wholly installed in the hazardous area, so simplifying
site installation and retrofits. Moisture content is determined in part
per million by weight (ppmw) through Henry’s Law calculation. The method
utilizes the measured dew point temperature, the liquid temperature and
values from a pre-programmed extensive list of saturation concentration
data for a variety of petrochemical liquids. For cases where customised
liquid characteristics data are required, they can be entered quickly
and easily by the user. LIQUIDEW EExd is certified as flameproof for use
in IEC Zone 1 and 2/NEC Class 1 Div. 1 and 2 hazardous areas. The Main
unit (electronics and sensor) together with the associated sampling
system may be mounted at ... |
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New FAST way to increased accuracy of the
Optidew Cooled Mirror Hygrometer |
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 Michell
instruments has developed a new technology to increase the accuracy
and reliability of their cooled mirror instruments. The Frost Assurance
System Technology (FAST) works by ensuring that, for temperatures below
0°C, the ‘dew point’ reading is always taken from the formation of ice
crystals, rather than water droplets. The new system is now being
incorporated into the Optidew range of cooled mirror instruments.
Although these hygrometers are already highly accurate, being able to
give moisture readings down to a level of -40°Cdp, some applications
need even higher levels of accuracy. Water doesn’t always freeze at 0°C
– in some circumstances super-cooled water can exist at much lower
temperatures. This can be caused by contaminants in the gas being tested
for moisture, or even build up of residue on the cooled mirror surface.
Super-cooled water condenses at a slightly different temperature to
‘normal’ ice formation, and the errors involved are typically equal to
10%. ... |
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Small and Reliable Intrinsically Safe Dew
Point Transmitter for CNG applications |
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 Recently
developed by Michell Instruments, the Easidew TX I.S. Transmitter
offers a minimal footprint while maintaining exceptional performance and
reliability. The new transmitter can be connected in a 2-Wire loop
powered or 3-Wire configuration. It features a white HDPE sinter,
designed to provide a visual indication of sensor contamination. The new
sintered guard provides protection to less than 10 micron and is
impermeable to liquids. The Easidew TX I.S. is certified by ATEX and FM
Approvals for use in hazardous areas. The certification lists five
different galvanic isolators and allows customers to choose the most
suitable isolator for their own on-site requirements. This intrinsically
safe transmitter has powerful processing capability allowing for the
first time, the on-board calculation of ppm(v) moisture content in
selectable ranges from 0 to 3000ppm... |
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All manufacturers and suppliers of humidity sensors, dew point sensors
humidity transmitters, humidity transducers, humidity measurement devices |
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