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New! The Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU300
Vaisala introduces a new generation barometric pressure, relative humidity and temperature transmitter series, the Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU300. The PTU300 features fully digital measuring electronics for all three parameters, several small RH&T sensor heads for different applications, and calculated humidity variables. The new backlit display shows three-hour graphical trends and up to one year of historical data. The recorded measurement data can be viewed on the display or transferred to a PC. Seven languages options are also available.
The PTU has four different probe options: PTU301 for laboratories, PTU303 for outdoor use, the warmed PTU307 probe for demanding meteorology, and the PTU30T for pressure and temperature measurement only.
The Vaisala BAROCAP® sensor is used for pressure measurement and the Vaisala HUMICAP® sensor measures humidity. Both sensors are known for their high accuracy and long-term stability. The temperature sensor is a platinum RTD sensor.
Applications include environmental monitoring in calibration laboratories, GPS meteorology and weather stations.
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The transducer T7311 is a 3 channel programmable transmitter with an indoor / outdoor temperature, hunidity and barometric pressure probe.
Temperature probes and transducers for Pt1000/3850ppm sensor with two-wire connection and RS232 interface are built in a durable watertight case. Output temperature range is user adjustable. Degrees Celsius and Fahrenheit are user selectable. Large dual line LCD is an advantage. Display is possible to switch off. Computerized design ensures maximum long term stability and fail indication.
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The Vaisala DRYCAP® Dewpoint Transmitter DMT242 is the ideal choice for industrial applications where there is a need to control dryer performance in low dewpoints.
The DMT242 incorporates Vaisala’s DRYCAP® thin-film polymer sensor and auto-calibration software, a combination that makes it ideal for use in dry ambients. The transmitter provides long-term stability, fast response time and a wide measurement range with an accuracy of ±2 °C.
The DRYCAP® thin-film polymer sensor is immune to water condensation, particular contamination, oil vapors and most chemicals. Vaisala’s unique auto-calibration software corrects the possible dry end error and provides long term stability in dry conditions. Since the DMT242 transmitter can withstand even 100% condensation, its performance is unmatched for low dewpoint applications that may experience process water spikes.
The DMT242 is both compact, rugged and easy-to-use. The mechanics have been designed for extreme conditions that require protection against dust, dirt and splashed water. The housing is NEMA 4 (IP65) protected and the transmitter can withstand being installed directly into systems at 300psi maximum pressure.
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EE35 Series
Dew Point Measurements down to -60°C Td (-76°F Td)
Exact dewpoint monitoring is increasingly playing a more important role in many industrial applications, such as drying processes and air pressure pipelines. For these purposes the multifunctional EE35 transmitter series offers the ideal features.
The EE35 Series is based on a functional, user-friendly housing concept and on the proven
polymer humidity sensors of the HC Series.
A specially developed autocalibration process enables measurements in a measurement range
of -60...+60 degC Td with a Td measurement accuracy of ±2 degC.
Two freely configurable and scaleable analogue outputs are available for the two measurement values (Td, T).
An optional hygrostat output, which can be set by means of a potentiometer, provides an alarm signal in a simple way when a threshold of the permitted dewpoint is exceeded.
An optional display for the measure- ment values and the associated MIN/MAX values allows a quick overview of the current situation.
Measuring range: -60...60 degC Td (-76...+140°F Td) ; 0...60 degC T (32...140°F T)
Outputs: 0-5V, 0-10V, 0-20mA, 4-20mA
Accuracy: +/- 2 degC Td; +/-0.2 degC T
Supply: 24V AC/DC
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Hygromaster
Versatile hygrometer that measures humidity, air temperature and dewpoint
The Protimeter HygroMaster is an easy to use hygrometer with built in data logging capability. The HygroMaster is a hand-held instrument for taking spot measurements and for logging humidity and temperature values. Quick measurements of relative humidity, dew point, mixing ratio (grains per pound/parts per million by weight) and ambient temperature are shown on a split display at the touch of a button. Surface temperature measurements can also be measured with an optional surface temperature sensor, making this instrument especially suitable for condensation risk assessment and diagnosis.
Two types of humidity probes are offered for use with the HygroMaster, the Hygrostick (POL750) and the HumiStick(POL7750-2). The HygroStick in optimized for measuring humidity in the 30-100% rh range and may be used with Protimeter humidity sleeves that are used when measuring the equilibrium relative humidity of solid walls and floors. The HumiStick is a fast responding sensor with a range of 1-100% rh making it more suitable for general air quality applications, including outputs from dehumidifiers and HVAC systems.
Features & Benefits:
All readings are displayed on a large LCD display
The embeddable Hygrosticks can also be used to measure the ERH value of walls and floors
May be used with an optional surface temperature sensor (BLD4701) when investigating dewpoint or condensation conditions
Available with HygroStick or HumiStick and optional data cable and software kit
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Optidew is based on the fundamental chilled mirror principle for dew point measurement. It offers a measurement range of <0.5% to 100% relative humidity at operating temperatures from -20°C to +90°C (however this range is extendable up to 130°C with a higher integrity sensor head). The Optidew transmitter can be used in many industrial environments. Optidew offers two linear 4-20mA outputs allowing configuration and monitoring by a suitable computer, PLC system. Michell Instruments also provides its own monitoring and configuration software with logging capability available via RS232 communication. An adjustable volt-free contact alarm is also available for direct process control. An optional high definition alphanumeric display provides local indication of the measured humidity.
Comprehensive user software makes it easy to set instrument parameters such as measurement units (RH, temperature, dew-point, g/kg and g/m3), output range, °C or °F operation etc. The software also provides a data logging and live charting facility and a min/max/average calculation.
The Optidew is available in single or two stage sensor variants according to the measurement range requirement with integrated or remote type sensors. Two display options can also be specified, providing a simple 3.5 digit LED display or a back-lit LED display.
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The Easidew Range is a series of instruments designed to measure dew-point and moisture content. Easidew is the most affordable range on the market but uses the newest technology. The Easidew range uses ceramic sensors to give the fastest response times, resist corrosion and cope with sudden pressure change.
The Easidew Transmitter is a two-wire loop powered dew-point transmitter designed to make dew-point measurement as easy as possible. The transmitter is fully configured and calibrated so it can be combined with any air or gas management and control system.
The Easidew On- Line is a cost effective hygrometer with digital display, analogue and digital outputs and a dual alarm feature. The Easidew On-Line is reliable and offers excellent repeatability. The Easidew On-Line can be bench or panel mounted for use in any application.
The Easidew Sampler is a general sampling system which, when used with instruments from the Easidew range, provides measurement of dew-point in compressed air and industrial gas applications. The Sampler allows a sample of gas under test to be conditioned for measurement at atmospheric or full-time pressure. The Easidew Sampler provides flow and pressure regulation and an in-line particulate filter, housing the sensor all in a single monolithic block assembly. The system can be mounted on a panel, post, or pipe brace.
The Easidew TX I.S. and Pro I.S. are both dew-point transmitters designed for use in hazardous areas. Both are certified by ATEX and thoroughly protected to avoid damage in hazardous conditions.
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TK-100 Dew Point Transmitter
Measurement in -100 to +20 degC dew point at +/- 2 degC dp accuracy, by DC 24V power.
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Vaisala HUMICAP® Dewpoint Transmitter DMW19
- Designed for demanding building automation applications and other wall mount indoor applications where dewpoint measurement is needed
- Electronic, on-site, one-point field check with Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM70
- Warranty time 2 years
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ALMEMO® dew-point sensor, type FHA646DTC1
Dew-point transmitter
with current output MT8716DTC1
Especially suitable for dew-point measurement with high
level precision and long-term stability.
Digital transfer of measured values to the ALMEMO® display
section (avoids risk of inaccuracy on the connecting lines or
in the display section itself).
High-level accuracy sustained down to -80 °C.
High-speed reaction time.
Displayed variables : temperature, rel. humidity, dew-point.
Process connection for high pressures (optionally up to 350 bar).
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Applications: Low Humidity, Meteorology
Industries: Medical, Aerospace and Military, Test and Measurement, Transportation, General Industry, Consumer Goods
Description: Based on the rugged HS1101LF capacitive humidity sensor, HM1520LF is a dedicated humidity transducer designed for measurements at low humidity. Direct measurement of dew point or water concentration can be easily obtained in really cost effective conditions. Direct interface with a micro-controller is made possible with the module's linear voltage output.
Features:
- Tubular form for through wall mounting
- Product free from Lead, Cr(6+), Cd and Hg
- Calibrated, linear voltage for easy electronic interface
- Typical 1 to 1.6 Volt DC output for 0 to 20% RH at 5Vdc supply
- Ratiometric to voltage supply
- Patented solid polymer structure
- Full interchangeability
- Not affected by water immersion
- Controlled temperature dependency
Humidity Sensor Specific Features:
- Not affected by long period at low humidity values
- High resistance to chemical
- Fast response time
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The DMPT348 meets the requirements for demanding industrial applications where stable measurement of low dewpoints is important.
The transmitter incorporates the Vaisala DRYCAP® thin film polymer sensor and auto-calibration software. The sensor is 100% condensation proof and immune to particular contamination, oil vapors and most chemicals. Vaisala's unique auto-calibration software corrects the possible dry end error and provides long term stability in dry conditions.
Flexible configuration, many options and accessories make the DMT348 versatile and easy to use. The DMT348 outputs dewpoint, relative humidity, ppmv and temperature.
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This digital, modular sensor with PMU Plug-and-Measure unit measures the relative humidity and temperature and calculates to output the values of the dew point temperature, water content, enthalpy, absolute humidity and wet bulb temperature.
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This module, intended to quantify the relative humidity level and temperature in the ambient atmosphere, is made of a micro-system SPSI UPSICAP MSS Bi-Face G-TUCN.32 type that delivers a variable frequency proportional to humidity, and a resistive temperature sensor (thermistor NTC).
The micro-system making this probe, integrates a humidity cell created in-situ on the upper side of the substrate, while the lower side carries the temperature sensor, the electronic transmitter and the plug-in connector. This functional module is associated to a support with output connection. The surface electrode cell which is directly in contact with water vapor is connected to ground (0V).
It can be associated with modules H-TUTA.32 or H-UTA.32 (output 4-20 mA two wires by independant channel). The micro-system module and the substrate of the connector-supply are protected from harsh environment by full moulding, and the sensig side to humidity, can be covered with high efficient atmospheric filter to reduce electrical effects of condensation.
This technology is a major step forward in the field of sensor-transmitters with long-term stability and reduction of mass production cost.
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-Temperature and humidity adjustable
-Optical operating display (LED)
-High switching capacity
-Clip fixing
The electronic hygrotherm senses the ambient temperature and relative humidity in anenclosure with electric/electronic components, and turns on a heater (or alternatively, a fan) at either set point, helping prevent the formation of condensation in the enclosure.
The LED integrated in the adjustment knob on the active controller is lit when theconnected device is in operation.
Approvals: VDE + UL File No. E164102
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Digital sensors for temperature and humidity, explosion proof
Transducer-/sensor conception for temperature and/or humidity measuring in hazardous areas, composed of a transducer series ExCos-D or RedCos-D and a sensor series ExPro, in acc. with ATEX 94/9/EC for use in hazardous areas zone 1, 2, 21 and 22, for all kind of gas, mixtures, vapours and dust. 24 VAC/DC supply, ranges from -40°C ... + 125°C or 0...100 % rH, as single measurement or combination of °C and %rH. Working range adjustable, output 0...10 VDC and 4...20 mA, actual value indication, aluminium housing IP 66, integral Ex-e terminal box. ExPro sensors are available with 50 mm, 100 mm, 150 mm and 200 mm length in acc. with type and can be connected to the transducer for room or duct mounting. Series ExCos-D for use in zone 1, 2, 21, 22. Series RedCos-D for use in zone 2, 22.
The module is for installation inside the hazardous area, an interface in the safe area is not required, installation of intrinsic safe circuit is not required. This saves cost, space and guarantees safety.
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Transmitters of the EE21 series have been developed for high-precision measurement of relative humidity and temperature. EE21 transmitters are available for wall and duct mounting with or without the very useful
snap in-mounting kit, which allows a quick and easy exchange of the transmitter.
Outputs can be selected between voltage and current. An optional radiation shield providing a forced ventilation is recommended for use in outdoor applications.
Special protection coating for the sensing element permits the permanent use in very pollutedenvironments.
Measuring range: 0...100% RH; -20...60 °C
Outputs: 0...1/5/10V or 4...20mA
Accuracy: +/-2% RH; +/-0.3 °C
Supply: 24V AC/DC
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Applications: Reprography, HVAC Controller
Industries: Medical, General Industry, Consumer Goods
Description: Based on the rugged HS1101LF humidity sensor, HTM1735LF is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the module's humidity linear voltage and direct NTC outputs. HTM1735LF is designed for an optimized board to board connection.
Features:
- Suitable for direct board assembly
- Product free from Lead, Cr (6+), Cd and Hg
- Humidity calibrated within ±2% RH @ 55% RH
- Typical 1 to 3.6 Volt DC output for 0 to 100% RH at 5V DC supply
- Temperature measurement through NTC 10kOhm ±3% direct output
- Full interchangeability
- High reliability and long term stability
- Not affected by repeated condensations
- Ratiometric to voltage supply within the specified range
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Transmitter System HygroDat 100
- Highest accuracy and repeatability
- Virtually hysteresis free and stable
- Versatile in use (5 different sensors)
- Integrated climate-parameter calculator
- Scalable and adjustable analogue outputs
- Easy installation and handling
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EE10 Series
HVAC Humidity & Temperature Transmitter for Indoor Applications
EE16 Series
Humidity & Temperature Transmitters for HVAC Applications
EE21 Series
High-Precision Humidity / Temperature Transmitter for HVAC
EE22 Series
Humidity / Temperature Transmitter with interchangeable Probes
Specific for the EE22 series are the interchangeable sensing probes EE07 with connectors.
The calibration data is stored in the probes, which are interchangeable and therefore probe replacement does not affect the performance of the EE22.
The outstanding accuracy over the entire temperature range is based on very precise calibration methods and on the latest microprocessor technology. Well-proven E E humidity sensor elements ensure excellent long-term stability.
EE23 Series
Multifunctional Humidity / Temperature Transmitter
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HumiTracTM features a NIST traceable, field-replaceable sensor tip module that allows the end user to replace the sensor on-site and maintain ±2% RH accuracy and NIST traceability. This virtually eliminates the need for time consuming and costly factory calibration, while reducing downtime during service intervals to near zero. HumiTracTM is designed to be highly configurable in the field - by minimizing the necessary number of orderable configurations, GE reduces distributor inventory costs and provides maximum flexibility to the installer. All versions feature field-selectable outputs (0-5V, 0-10V, 4-20mA) and passive temperature versions incorporate both a 3K and 10K O thermistors. Signal-conditioned temperature versions are available scaled from 0 to 50°C or -40 to 60°C. HumiTrac is available in humidity accuracies of ±2% or ±5%, and offered in wall mount, duct mount and outdoor air configurations.
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Minco humidity and humidity plus temperature transmitters are designed using an advanced microprocessor. Digital signal processing allows these transmitters to precisely match the characteristics of the humidity sensor to a wide range of RH and temperature values found in the many applications the product serves.
The humidity sensor is comprised of an integrated circuit (IC) with a stable polymer element and platinum RTD that is used for temperature compensation. This sensor offers outstanding resistance to airborne contaminant and chemicals, and is protected by a sintered stainless steel filter which resists condensation.
Wall/Duct/OSA mounting configurations
Accuracies of ±1% or ±2% RH
Temperature compensated
Temperature output option
Two-point field calibration
NIST traceable calibrations
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Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT100
- Full 0 ... 100 %RH measurement
- Two-wire loop-powered or three-wire voltage output configurations
- Fixed and remote probe models
- Display available
- Relative humidity, dewpoint, temperature outputs
- Vaisala HUMICAP® sensor
- Interchangeable probe module for minimal maintenance downtime
- Different output scalings
- Compatible with hand-held HM70 and HMI41 for one-point calibration
- IP65 (NEMA 4) housing
- NIST traceable (certificate included)
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Transmitter System HygroDat 10 / 20
- High accuracy
- No detectable hysteresis
- Standard analogue output signal
- Different versions available
Transmitter System HygroDat 10 / 20
Precision transmitter for measuring, monitoring and controlling of the climate in industrial HVAC processes. The HygroDat 10/20 system is based on the proven resistive electrolytic humidity measurement technology, which permits to control the climatic parameters without any hysteresis.
3 different executions are available, with fix mounted sensor for room and duct mounting as well as remote sensors for many other applications.
Diverse power supplies and calibration/adjustment functions distinguish this versatile device.
Application areas:
industrial HVAC installations, clean room applications, paper- and textile industry, warehouses, combustion processes and many more
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EE14 Series
Hygrostat for Duct and Wall Mounting
The EE14 hygrostat is based on the well proved E E humidity sensors of the HC series, which guarantee excellent long term stability, low hysteresis and high resistance to pollutants.
The switching threshold is freely adjustable in the range of 10...95% RH with a hysteresis which can be set independently between 3% and 15% RH.
The EE14 hygrostat is available for wall or duct mounting.
EE45 Series
Condensation Monitor for Chilled Ceilings, HVAC, ...
EE45 condensation monitors are used to monitor the formation of condensation on chilled ceilings and to prevent condensation at critical spots of heating-, ventilation- and air conditioning systems. It is also used as a dewpoint monitor for systems operating near the dewpoint.
Because of the temperature coupling between the condensation monitor and the environment, the relative humidity is a measure for the dew-point.
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The hygrostats HG with Polyga® measuring element are used as on-off controllers to control and monitor air humidity and related automation components (humidifiers, dehumidifiers etc.). With their robust and long-term stable Polyga® measuring element the HGs of Galltec+Mela are the ideal partners for humidity control, working on and on and on...
Available as duct version HG80, room versions HG120 and HGMini and OEM versions HM80 and HM120.
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-Adjustable relative humidity
-Change-over contact
-High switching capacity
-Easily accessible terminals
-Clip fixing
The electromechanical thermostat MRF 012 is designed to control enclosure heaters so that the dew point is raised when a critical relative humidity of 65% is exceeded.
In this way condensation and corrosion is effectively prevented.
Approvals: UL File No. E164102
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TK-100 On-line Hygrometer
A set of the TK-100 Dew Point Transmitter and the 1/8 DIN monitor, with connection cable. Measurement in -100 to +20 degC dew point at +/- 2 degC dp accuracy.
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EE03 Series
OEM Humidity / Temperature Module
EE04 Series
Small Size Transmitter for Humidity & Temperature
EE07 Series
OEM Humidity / Temperature Transmitter
EE08 Series
High-Precision Miniature Humidity / Temperature Transmitter
Accurate humidity / temperature measurement over a wide working range, fitted in a small-sized housing and high flexibility have been the main goals for the development of the EE08 series.
Long term stable E E sensor technology and an innovative electronic concept will meet these challenging objectives.
Low power consumption and short start-up time support efficient energy management for battery operated systems.
Calibration data and other relevant functions like linearization or temperature compensation are stored in the probe. This feature, together with the optional connector, allows for easy replacement of the probe without a need for re-adjustment
of the reading device (interchangeability).
Humidity and temperature measurement are available as analogue outputs (0-1/2.5/5V) or as a digital interface (E2-interface). Easy implementation and data processing is warranted.
Humidity and temperature reading can be re-adjusted using the calibration software; available as an accessory.
EE99-1 Series
OEM Humidity / Temperature Module for Climate Chambers
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Humidity sensors, Transmitters
