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Supplier: Alpha Moisture Systems
Description: Model CMH Chilled Mirror Hygrometer accurately measures the dewpoint of a gas by cooling a mirrored surface, over which the gas flows until a layer of dew forms on the surface. The Chilled Mirror Dew Point Hygrometer utilizes a 3-stage cooler combined
- Dew Point Accuracy: 3.6 +/-F
- Dew Point Range: -139 to 68 F
- Digital Outputs: Serial Interface
- Electrical Outputs: Analog Current, Analog Voltage
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Supplier: Buck Research Instruments, LLC
Description: The CR-4 is a chilled mirror hygrometer that uses a 3-stage thermoelectric cooler (TEC) to enable frost point measurements of as low as –65 °C, under favorable ambient conditions. Depending upon ambient temperature, it can measure dew points as high as 60
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -76 to 140 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Buck Research Instruments, LLC
Description: The CR-5 is a chilled mirror hygrometer that uses a 3-stage thermoelectric cooler (TEC) to enable frost point measurements of as low as –60 °C, under favorable ambient conditions. It is configured as a transmitter module with an external sensor connected by cable up to 9 feet in
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -76 to 140 F
- Digital Outputs: Serial Interface
- Electrical Outputs: Analog Current, Analog Voltage, Switch or Relay
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Supplier: Yankee Environmental Systems, Inc.
Description: The measurement of the water vapor content of a gas by the dew-point technique involves chilling a surface, usually a metallic mirror, to the temperature at which water on the mirror surface is in equilibrium with the water vapor pressure in the gas sample above the surface. At
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Supplier: Panametrics
Description: Panametrics OptiSonde hygrometer precisely analyzes humidity and temperature using chilled mirror sensing technology. This humidity analyzer is the perfect sensor of choice for laboratory and process measurements that require high precision without long-term drift. Key Benefits:
- Application: Moisture in Gases / Air
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -103 to 167 F
- Digital Outputs: Serial Interface
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Supplier: Panametrics
Description: GE’s Optica Series chilled mirror hygrometers offer National Institute of Standards and Technologies (NIST)—traceable humidity, temperature and pressure measurements for the connected generation. Now data is accessible from anywhere, any time, from within a browser over the
- Application: Moisture in Gases / Air
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -112 to 185 F
- Digital Outputs: Ethernet, Serial Interface
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Supplier: Yankee Environmental Systems, Inc.
Description: The absolute accuracy of the condensation-type (chilled mirror) hygrometer is exceeded only by the gravimetric train, an elaborate absorption system maintained as the primary standard for humidity measurements. Over the mid-range of dew point temperatures (?40?C), the
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Supplier: Buck Research Instruments, LLC
Description: The UHQ-4P is a chilled mirror hygrometer that is designed for measuring elevated dew points up to 150°C, such as those found in fuel cell and combustion applications Using technology developed for the CR-1A, CR-2 and CR-3, this instrument is unique because it does not use TE
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: 68 to 302 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Yankee Environmental Systems, Inc.
Description: The Model OEM-2017 Chilled Mirror Hygrometer is an analog single-stage chilled mirror sensor pressure rated to 30 PSI designed for on-line process sampling, OEM applications. Accuracy = ?0.16?C dew point over ?40?C/+50?C; max depression 45?C.
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Supplier: Roscid Technologies
Description: The DewTran® Series (patented technology) is a low cost, precision chilled mirror hygrometer that provides quick and accurate measurements of dew point, air temperature, humidity, or barometric pressure measurements. The hygrometer can be configured as a wall mount, duct
- Dew Point Range: -40 to 77 F
- Display: Digital Readouts
- Electrical Outputs: Analog Current
- Form Factor: Transmitter
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Supplier: Edgetech Instruments Inc.
Description: Edgetech Instruments field-proven chilled mirror technology. One, two or three stage sensors available - integral or remote from controller. NIST traceable calibration certificate. Depression range choice of either 45, 65 or 95°C . (one, two or three-stage cooling
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -40 to 140 F
- Display: Digital Readouts
- Form Factor: Analyzer, Instrument
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Supplier: Roscid Technologies
Description: The DewTran® Series (patent pending) is a low cost, precision chilled mirror hygrometer that provides quick and accurate measurements of dew point, air temperature, humidity, or barometric pressure measurements. The hygrometer can be configured as a wall mount, duct
- Dew Point Range: -40 to 190 F
- Display: Digital Readouts
- Electrical Outputs: Analog Current
- Form Factor: Transmitter
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Supplier: Process Sensing Technologies USA
Description: The Optidew 401 and Optidew 501 are fast-responding chilled mirror hygrometers utilizing the latest developments in chilled mirror technology. Ideal for use in industrial humidity control and precision laboratory applications. Available in bench top and wall mount
- Form Factor: Meter / Indicator
- Variables Measured: Dew Point
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Supplier: Rotronic Instrument Corp.
Description: Chilled mirror condensation technology provides highly precise, stable and repeatable results. Water vapor condenses onto a temperature controlled mirror surface and a dewpoint is detected with advanced optical electronics. Since dew point is specific to water vapor
- Compensation: Temperature Compensated
- Form Factor: Meter / Indicator
- Technology: Chilled Mirror
- Variables Measured: Dew Point
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Supplier: Process Sensing Technologies USA
Description: The S8000 precision hygrometer provides a direct measurement of dew point, temperature and pressure. Suitable for both industrial and laboratory applications, the instrument is compact and self-contained. Dew-point measurement is based on the proven, fundamental optical chilled
- Form Factor: Meter / Indicator
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Supplier: Process Sensing Technologies USA
Description: The S8000 Remote is a compact chilled mirror hygrometer with a remote sensor. It provides it provides fundamentally derived, high precision relative humidity readings necessary for validating the results of environmental tests. It offers a wide measurement range from the
- Form Factor: Meter / Indicator
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Supplier: The Kahn Companies
Description: An optical (chilled mirror) hygrometer for determining dewpoint using a fundamental measurement technology • Fundamental, Accurate, Drift-Free Measurement • -76°F to +104°F Dewpoint Range • Dewpoint Accuracy of ±0.18°F • Advanced Dual
- Compensation: Pressure Compensated
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -76 to 104 F
- Digital Outputs: USB, Other
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Supplier: Edgetech Instruments Inc.
Description: The Edgetech Instruments Model DewTrak II dew point / humidity transmitter is an optical chill mirror hygrometer designed to continuously measure the moisture content in gases. The instrument is powered by 24Vdc. The DewTrak II uses the chilled mirror dew point
- Digital Outputs: Serial Interface
- Display: Digital Readouts
- Electrical Outputs: Analog Current, Analog Voltage
- Form Factor: Transmitter
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Supplier: The Kahn Companies
Description: The Series 4000 Hygrometer family features the most accurate and versatile optical hygrometers available in the marketplace today.
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -148 to 185 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Edgetech Instruments Inc.
Description: The Vigilant Aircraft Hygrometer is a rugged, shock mounted instrument used for accurate measurement of dew/frost point in flight or in installations with existing flow, such as wind tunnels. The Vigilant features a miniature, remote or mounted, primary method chilled mirror dew
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -58 to 194 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Buck Research Instruments, LLC
Description: The 1011C Aircraft Hygrometer is a complete chilled mirror optical dew point system for monitoring atmospheric dew and frost points. It provides three stages of thermoelectric cooling, and can reach frost points as low as -60 to -90 °C, depending on mounting configuration and
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -85 to 122 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Process Sensing Technologies USA
Description: The S8000 RS is a high-precision chilled mirror reference hygrometer which gives highly accurate and repeatable measurements of dew-point and humidity. It is intended for use as a reference instrument in standards laboratories and is also suitable for industrial applications –
- Form Factor: Meter / Indicator
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Supplier: The Kahn Companies
Description: HygroPort Portable Hygrometer Dewpoints from -148°F to +68°F Rugged thermoplastic case; NEMA 4 rated Digital display, user selectable ranges and units Fast-responding internal sensor Second process input channel (4-20 mA) for external
- Compensation: Pressure Compensated
- Dew Point Accuracy: 1.8 to 3.6 +/-F
- Dew Point Range: -148 to 68 F
- Display: Digital Readouts
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Supplier: The Kahn Companies
Description: The Optidew Dewpoint Hygrometer uses fundamental optical dewpoint measurement to provide drift-free long-term performance. It offers a wide measurement range of -76 to +194°F dewpoint (or 0.5 to 100% relative humidity) at temperatures from -40 to +194°F. Optidew provides two linear 4
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -76 to 194 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Edgetech Instruments Inc.
Description: The Edgetech Instruments Model DewTech 390 is a Precision Low Dew Point Hygrometer which offers measurement of extremely low Dew Point or Trace Moisture for a variety of background gases at a very attractive price. Based on the Primary Standard Chilled Mirror measurement
- Dew Point Accuracy: 0.3600 +/-F
- Dew Point Range: -130 to 68 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Yankee Environmental Systems, Inc.
Description: The Model PMH-2006 Precision Meteorological Hygrometer is a precision ambient dew/frost point measuring system with chilled mirror dew point sensor for outdoor or indoor test chamber applications. It provides the highest accuracy available on the market. Dew point temperatures
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Supplier: RH Systems
Description: The 573 Dew Point Mirror is a precision hygrometer exploiting advances in digital technology to satisfy the highest requirements in the measurement of humidity. The 573 relies on proven optically detected chilled mirror techniques. The 573 is available in a number of
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -22 to 203 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: Accuris
Description: STANDARD TEST METHODS FOR DETERMINATION OF THE SOIL WATER CHARACTERISTIC CURVE FOR DESORPTION USING HANGING COLUMN, PRESSUREEXTRACTOR, CHILLED MIRROR HYGROMETER, OR CENTRIFUGE - INCLUDES STANDARD + REDLINE (PDF)
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Supplier: Accuris
Description: Standard Test Methods for Determination of the Soil Water Chararcteristic Curve for Desorption Using a Hanging Column, Pressure Extractor, Chilled Mirror Hygrometer, and/or Centrifuge
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Supplier: Roscid Technologies
Description: The DewTran® -LC (patent pending) is a low cost, precision dew point chilled mirror transmitter that provides a quick and accurate measurement of dew point. The transmitter has one configuration and is designed for three different applications (wall mount, duct mount and pipe mount).
- Dew Point Range: 5 to 122 F
- Electrical Outputs: Analog Current
- Form Factor: Transmitter
- Operating Temperature: 14 to 140 F
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Supplier: RH Systems
Description: The Model 473 Dew Point Mirror is a portable instrument equipped with a separate measuring head for both spot and continuous measurement of Dew/Frost point and temperature in air and gas mixtures. Based on the chilled mirror principle, the 473 ensures direct and accurate
- Dew Point Accuracy: 0.1800 to 0.2700 +/-F
- Dew Point Range: -4 to 158 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: RH Systems
Description: The Model 973 Dew Point Mirror is a portable instrument equipped with an integral measuring head for both spot and continuous measurement of Dew/Frost point and temperature in air and gas mixtures. Based on the chilled mirror principle, the 973 ensures direct and accurate
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -58 to 68 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: RH Systems
Description: The 373 Dew Point Mirror is a precision hygrometer exploiting advances in digital technology to satisfy the highest requirements in the measurement of humidity. As a true laboratory reference instrument, the 373 relies on proven optically detected chilled mirror
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -4 to 203 F
- Digital Outputs: Serial Interface
- Display: Digital Readouts
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Supplier: ASTM International
Description: (pressure chamber with volumetric measurement) and Method C (pressure chamber with gravimetric measurement) are suitable for suctions in the range of 0 to 1500 kPa. Method D (chilled mirror hygrometer) is suitable for making determinations for suctions in the range of 500 kPa to
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Supplier: MBW Calibration AG
Description: The Model 973 Dew Point Mirror is a portable Instrument equipped with an integral measuring head for both spot and continuous measurement of frost/dew point and temperature in air and gas. Based on the chilled mirror principle, the 973 provides fundamental, drift free and
- Dew Point Accuracy: 0.1800 +/-F
- Dew Point Range: -76 to 68 F
- Display: Video Display Terminal
- Electrical Outputs: Analog Current
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Supplier: MBW Calibration AG
Description: are uniform. In combination with the T12 multichannel thermometer, the 473 is particularly well suited to climatic chamber validation projects. Features Highly precise chilled mirror dew point technology Cable mounted dew point and temperature measurement
- Dew Point Accuracy: 0.1800 to 0.2700 +/-F
- Dew Point Range: -4 to 158 F
- Display: Video Display Terminal
- Electrical Outputs: Analog Current
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Supplier: ASTM International
Description: (pressure chamber with volumetric measurement) and Method C (pressure chamber with gravimetric measurement) are suitable for suctions in the range of 0 to 1500 kPa. Method D (chilled mirror hygrometer) is suitable for making determinations for suctions in the range of 500 kPa to
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Supplier: ASTM International
Description: (pressure chamber with volumetric measurement) and Method C (pressure chamber with gravimetric measurement) are suitable for suctions in the range of 0 to 1500 kPa. Method D (chilled mirror hygrometer) is suitable for making determinations for suctions in the range of 500 kPa to
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Supplier: MBW Calibration AG
Description: combined with a micro engineered aluminium impeller/cowl combination to maintain reliable and stable sample flow. Flow rate can be changed through the 473 front panel user interface or by serial commands. Features – Precise and stable chilled mirror dew point mirror technology
- Dew Point Accuracy: 0.1800 to 0.2700 +/-F
- Dew Point Range: -4 to 158 F
- Display: Video Display Terminal
- Electrical Outputs: Analog Current
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Supplier: MBW Calibration AG
Description: The 473-SH2 is a chilled mirror dew point hygrometer with a cable mounted measuring head with an integrated sample flow control fan and high precision temperature measurement. It is particularly well suited for use in climatic chambers or humidity generators where it functions
- Dew Point Accuracy: 0.1800 to 0.2700 +/-F
- Dew Point Range: -4 to 158 F
- Display: Video Display Terminal
- Electrical Outputs: Analog Current
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Supplier: Alpha Moisture Systems
Description: Complete turnkey laboratory calibration systems or individual modules Manual or fully automatic Moisture Generators, Desiccant Driers, Touchscreen Interface and Chilled Mirror Hygrometer Proprietary software to automate calibration, data collection, processing and
- Dew Point Range: -112 to 68 F
- Display: Digital Readouts
- Features: Self Calibrating, Datalogger
- Form Factor: Sensor / Probe, Transmitter, Meter / Indicator, Instrument
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Supplier: OMEGA Engineering, Inc.
Description: This portable dew point hygrometer integrates the accuracy and reliability of the OMEGA chilled mirror with the battery life and ruggedness required for field use. The RHB-1500-C portable chilledmirror hygrometer has all the standard features, such as drift-free NIST
- Application: Moisture in Gases / Air
- Dew Point Accuracy: 0.4500 +/-F
- Dew Point Range: -76 to 122 F
- Display: Digital Readouts
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Supplier: Alpha Moisture Systems
Description: standards. All calibration procedures are carried out by highly skilled and experienced technicians operating state-of-the-art equipment. Our climate-controlled laboratory has precision moisture generators and chilled mirror dew point hygrometers. Calibration procedures follow
- Capabilities: Specialty Instrument / Equipment Repair Services
- Location: Europe Only
- Services: Calibration Service
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Supplier: Alpha Moisture Systems
Description: standards. All calibration procedures are carried out by highly skilled and experienced technicians operating state-of-the-art equipment. Our climate-controlled laboratory has precision moisture generators and chilled mirror dew point hygrometers. Calibration procedures follow
- Equipment Expertise: Specialty Instrument / Equipment
- Location: Europe Only
- Services Offered: Calibration Service
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Supplier: Parameter Generation & Control, Inc.
Description: PRECISE CONTROL WITH CHILLED MIRROR ACCURACY Parameter Generation & Control, in partnership with EdgeTech, provides large volume calibration chambers that combine the quality and durability of the Parameter line with the proven technology of the EdgeTech hygrometer. These
- Chamber Capacity: 4.5 cubic feet
- Configuration: Reach-In, Laboratory / Room
- Features: Humidity Control, Programmable, Windows
- Humidity Range: 10 to 95 % RH
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Supplier: Parameter Generation & Control, Inc.
Description: PRECISE CONTROL WITH CHILLED MIRROR ACCURACY Parameter Generation & Control, in partnership with EdgeTech, provides large volume calibration chambers that combine the quality and durability of the Parameter line with the proven technology of the EdgeTech hygrometer. These
- Chamber Capacity: 30 cubic feet
- Configuration: Reach-In, Laboratory / Room
- Features: Alarm(s), Humidity Control, Programmable, Shelves, Windows
- Humidity Range: 10 to 95 % RH
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Supplier: Parameter Generation & Control, Inc.
Description: PRECISE CONTROL WITH CHILLED MIRROR ACCURACY Parameter Generation & Control, in partnership with EdgeTech, provides large volume calibration chambers that combine the quality and durability of the Parameter line with the proven technology of the EdgeTech hygrometer. These
- Calibrator Style: Fixed
- Display Type: Digital Readouts
- Local Interface: Digital Front Panel
- Operating Temperature: 44.6 to 185 F
Find Suppliers by Category Top
Featured Products Top
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Out now: White paper on moisture in oil sensor
To operate a gearbox, a transformer or an industrial plant safely and stable over a long period of time, monitoring the condition of lubricants with process sensor technology is recommendable. iST now published a white paper on its moisture-in-oil sensor.
Prime oil condition is essential for a smooth operation of...
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for Innovative Sensor Technology IST USA Division -
Here at STEGO, we work with our customers – in this case, wind turbine manufacturers – to shape the future of energy production. In doing so, we are playing a valuable role in driving the energy revolution. Find out how our climate control solutions ensure the reliable operation of wind power facilities and renewable energy plants.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for STEGO -
- Adjustable relative air humidity
- Change-over contact (heating or cooling)
- High switching performance
- Clip fixing
Browse Hygrometers and Humidity Measurement Instruments Datasheets for STEGO -
Compact, reliable, and digitally connected, STEGO’S CSS 014 IO-Link sensor tracks temperature and humidity in real time, enabling smarter control and enhanced system protection.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for STEGO -
An accurate and reliable hygrometer, easy to use for spot measurement of trace moisture in gases and compressed air. The SADP portable dewpoint meter is suitable for rapid moisture checks in a wide range of industries including power (read more)
Browse Hygrometers and Humidity Measurement Instruments Datasheets for Shaw Moisture Meters -
user configurations can be password protected. This fully self-contained, single channel, inline hygrometer accepts a universal supply voltage, has low power consumption and can be located up to 1,000 metres away from the (read more)
Browse Hygrometers and Humidity Measurement Instruments Datasheets for Shaw Moisture Meters -
The SU2 Sample System is designed to assist with sampling directly from process lines, whilst protecting your compatible dewpoint meter from high pressures and contaminants particularly in hydrocarbon applications. Easy to set up and install, the SU2 includes a stainless steel pressure regulator and flow meter mounted on a back plate, attached to the top of the SADP portable hygrometer.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for Shaw Moisture Meters -
To support your dewpoint calculations and conversions, here at Shaw Moisture Meters we offer two types of pressure dewpoint calculator for trace moisture measurement. This video tutorial concentrates on our handy pressure dewpoint calculator. Perfect for spot check reading conversions and compact enough to store in the carrying case with your portable dewpoint meter.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for Shaw Moisture Meters -
The AcuDew Modbus RTU dewpoint transmitter delivers accurate data via RS‑485 communication. Each transmitter stores a unique TAG ID for simple integration and diagnostics. Factory‑configured outputs send precise measurements to SCADA/PLC systems, while daisy‑chain support streamlines multi‑sensor installations.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for Shaw Moisture Meters -
Compact, reliable and digitally connected, STEGO's CSS 014 IO-Link sensor tracks temperature and humidity in real time, enabling smarter control and enhanced system protection.
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Browse Hygrometers and Humidity Measurement Instruments Datasheets for STEGO
Conduct Research Top
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Chilled Mirror Hygrometer Temperature Depression Explained.
There is often confusion about the dewpoint measurement range of chilled mirror hygrometers and their temperature depression range.
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Why Chilled Mirror Hygrometers are Inherently Reliable
The heart of a chilled mirror hygrometer is the sample chamber, through which the gas to be measured flows. The chamber contains a coolable mirror and an optical system that measures the mirror reflectivity. During operation, the mirror is cooled until dew or frost begins to condense
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Use of Chilled Mirror Hygrometers as Reference Instruments in Calibration Laboratories
For large pharmaceutical manufacturing plants, power plants and other industrial/process plants which operate large quantities of dew point sensors, it is usually more cost-effective to calibrate these in-house rather than sending them away to a calibration lab. This also gives the user the option
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The Use of Optical (Chilled Mirror) Sensor Technology for Moisture Measurement
Optical (chilled mirror) is the most-widely used technology for calibration of dewpoint and relative humidity sensors and transmitters. Optical (chilled mirror) hygrometers are also used in mission-critical applications where long-term stability, accuracy and precision are required. In addition
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Using the DPS Series Heated Dew Point/ Humidity Hygrometer
The DPS series of heated chilled mirror hygrometers are designed to extract a gas sample from a heated process and measure its dew point. The DPS is designed to measure dew point in the range of +95°C (203°F) to as low as -35°C (-31°F). Each model within the series consists of an optical chilled
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Humidity Academy Theory 8 - Chilled Mirror and Aluminum Oxide Technology
A chilled mirror or condensation hygrometer is a technology used to directly measure the dew or frost point of a gas. If the temperature of a mirror is lowered to precisely the value that makes dew appear on the surface, the value of the mirror temperature is called dew point. Using the previous
More Information Top
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Process/Industrial Instruments and Controls Handbook, Fifth Edition > HUMIDITY AND MOISTURE SYSTEMS
Chilled Mirror Hygrometers .
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Sensors Handbook, Second Edition > SENSORS AND INSTRUMENTATION FOR THE DETECTION AND MEASUREMENT OF HUMIDITY
Chilled Mirror Hygrometer .
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Experimental Unsaturated Soil Mechanics
… Under Consolidated Drained Conditions, Annual Book of ASTM Standards, ASTM ASTM D 6836–03 (2004) Standard Test Methods for Determination of the Soil Wa- ter Characteristic Curve for Adsorption Using a Hanging Column, Pressure Ex- tractor, Chilled Mirror Hygrometer , and/or Centrifuge, Annual Book …
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Monitoring Atmospheric Water Vapour
Eng. 1953) W.M. Stein, A. Bisberg, D. Beaubien, Flight test results of a low-cost balloon borne chilled mirror hygrometer , in 81st AMS Annual Meeting, Albuquerque, NM, 16 January 2001 V.E. Suomi, W.E. Barrett, An experimental radiosonde for the …
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A Fan-Actuated Mechanism for Controlled Exposure of a Psychrometer Wet Bulb Sensor to a Dusty Environment
Measurements from the psychrometer were compared with simultaneous readings from a chilled mirror hygrometer (model Hygro-M1-AUTO with 1111H sensor, General Eastern Instruments, Watertown, MA).
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http://orca.cf.ac.uk/18611/1/2011BagRPhDv.2.pdf
Suction-water content relationship of MX80 bentonite established from desiccators and chilled mirror hygrometer tests .
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Miniaturized Two-Pressure Generator for Relative Humidity
In most cases, these work on the principle of a mixed-gas generator with an internal reference, with either a dedicated chilled mirror hygrometer or a capacitive polymer sensor serving as the internal reference.
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ZHTP00504P054
Condensation (optical chilled mirror ) hygrometers , metal oxide sensors, and thinfilm polymer sensors are among the available technologies.
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An optical water vapor sensor for unmanned aerial vehicles
The Aerodyne Research instrument showed excellent agreement (to within & 1° dew point) with a chilled mirror hygrometer that is routinely used to record atmospheric water vapor content on a -10 second time scale.
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High
precision trace humidity measurements with a fibre-coupled
diode laser absorption spectrometer at atmospheric pressure
Comparisons of the instrument with chilled mirror hygrometers demonstrated its fast response time.