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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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Optidew is based on the proven optical principle of dew point measurement. It offers a wide dynamic measurement range, from -50 to 90ºC dew point over a temperature range of -40 to 90ºC (up to 130ºC with optional high temp sensor). Optidew can act as dew point and temperature or relative humidity and temperature transmitter, providing the user with two linear 0-20mA or 4-20 mA outputs, software selectable, in addition to serial communications. Originally designed to withstand the rigours of monitoring the air intake to gas turbine-fired power stations, Optidew is capable of operating in almost any industrial environment.
Comprehensive user software provides the ability to easily set instrument parameters such as measurement units (RH, dew point, temperature, g/kg and g/m3), output range, ºC or ºF operation etc. The software also provides a datalogging and live charting facility as well as min/max/average calculation.
Optidew is available in single- or two-stage sensor variants and with integrated, remote or probe-type sensors. Two display options can also be specified, providing a simple 3.5 digit LED display or a more sophisticated back-lit LCD display.
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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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Transducer and switching modules for temperature, humidity and pressure, explosion proof
Elektrical, explosion proof trandsucer, series ExCon-A, Red-Con-A, ExCon-D, RedCon-D and EXL-IMU-1 as well as switching modules series EXL-IRU-1, to connect modulating or binary temperature, humidity and pressure sensors, in acc. with ATEX 94/9/EG for use in hazardous areas zone 1, 2, 21 and 22 (in acc. to sensor type), for all kind of gas, mixtures, vapours and dust. 24 VAC/DC supply, adjustable on site, integral display for programming and for actual value indication.
series ExCon-A for modulating, analogue sensors (type ExSens) and ExCon-D for modulating, digital sensors (type ExPro), for use in hazardous areas zone 1, 2, 21 and 22. series RedCon-A modulating, analogue sensors (type ExSens) and RedCon-D for modulating, digital sensors (type ExPro), for use in hazardous areas zone 2 and 22.
series EXL-IMU-1 for modulating, analogue sensors (type ExSens) for use of sensors in zone 1, 2, 21 and 22, the module must be installed in the safe are and is prepared for DIN rail mounting.
series EXL-IRU-1 for binary, analogue sensors (type ExSens) for use of sensors in zone 1, 2, 21 and 22, the module must be installed in the safe are and is prepared for DIN rail mounting. |
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Our new humidity sensor range have been designed to suit all your need in temperature/humidity...
5 new ranges for any industry, process, building services, indoor climate, OEM...
Monostats : from 0 to 100 %RH, from 0 to +50°C, from -20 to +80°C, probes : standard, duct mount or remote and 1 RCR relay 3A/230 Vac.
Classe 50 : from 0 to 100 %RH with ambient probe.
Classe 100 : from 0 to 100 %RH and from 0 to +50°C, -20 to +80°C, -50 to +50 °C, 0 to +100°C, configurable intermediary and central zero ranges, 4-20mA ou 0-10V output.
Classe 200 : from 0 to 100 %RH and from -40 to +180°C, calculation function, PC or stainless steel probe, 2 x 4-20 mA ou 0-10V outputs, 2 visual and audible alarms, 2 RCR relays 6A/230 Vac, software configuration.
Classe 300 : 0-100%HR and -40 to +180°C, configurable intermediary ranges, PC or stainless steel probe, 2 x 4-20 mA ou 0-10V outputs, 2 visual and audible alarms, 2 RCR relays 6A/230 Vac, external transmitter inputs, calculation function, Simultaneous display of 1 to 4 parameters, MODBUS network RS 485 system, software/Keypad/Remote control configuration |
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Humidity Sensor Transmitter : TH200
• Ranges from 0-100%RH and -40 to +180°C (probe dependent)
• Configurable intermediate ranges
• Functions : relative and absolute humidity, dew point, wet and
dry temperature, enthalpy.
• Smart-Pro system interchangeable probes (PC or Stainless Steel)
• On-site calibration
• Simultaneous display of 2 parameters
• 2 outputs 4-20 mA or 0-10V (4 wires), RS 232, 2 RCR relays 6A/230 Vac
• 2 visual (dual color LED) and audible (buzzer) alarms
• Output diagnostics
• ABS IP 65 housing, with or without 2-line backlit display.
• Quick and easy mounting using the “1/4 turn” system with wall-mounting plate. |
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EE32/33 Series
Humidity / Temperature Transmitter for High Humidity and Chemical Applications
The highly accurate EE32/33 series are designed for fast and reliable measurement of relative humidity / dew point temperature / absolute humidity / ...under the most demanding conditions.
Neither condensation nor heavy chemical pollutions will affect prompt and reliable measurements. Process pressures as high as 100 bar (1450 psi) and continuous high humidity are also no problem for the EE32/33 series.
EE31 Series
Multifunctional Humidity / Temperature Transmitter for Humidity / Temperature / Dew Point / Absolute Humidity...
The optimal hardware structure of transmitters of the EE31 series for varying applications is achieved by combining various standard mechanical and electronic modules.
Besides relative humidity and temperature following quantities are also measured:
absolute humidity
dewpoint temperature
frostpoint temperature
specific enthalpy
wet bulb temperature
water vapour partial pressure
mixture ratio
EE30EX Series
Humidity / Temperature Transmitter for Intrinsically Safe Applications
EE29 Series
Multifunctional Humidity / Temperature Transmitter up to 180 degC
EE23 Series
Multifunctional Humidity / Temperature Transmitter up to 120 degC
EE22 Series
Humidity / Temperature Transmitter with interchangeable Probes
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Product Description:
Libratherm offers Relative Humidity and Temperature transmitter model HTX-3000 for measuring and transmitting the analogue and digital values proportional to these two parameters. HTX-3000 is designed using the latest micro-controller, incorporating Pt-100 class A element for temperature sensing and Monolithic sensor for %RH sensing. The two independent loop current outputs of 4-20mA proportional to both the parameters are available for remote measurement and indication. To suit industrial requirement the transmitter is available in both duct type and wall mounting type
assembly, and for the local indication of %RH and Temperature, two independent 4 digit 7 segment red LED displays are provided. For serial interface with PLC or DCS or with any other process controller – digital serial communication on RS485 bus with MODBUS RTU protocol in slave mode is also provided. Using RS 485 interface is advantageous, since number of wires as with the three wire of 4-20mA per transmitter can be avoided (3 wires multiply by no. of transmitters), since only two wires can be looped with multiple transmitters in multi-drop wiring. These transmitters finds application in HVAC, Climatic control, Stability chamber, Hospitals, Green houses, useful for Validation agencies and for regulatory requirement of FDA, CGMP, ISO14644 etc….
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| Michell Instruments offers a wide range of humidity and temperature measuring sensors and instruments, including relative humidity transmitters, humidity and temperature transmitters, handheld indicators and humidity generators. |
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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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X-Hum Analog is a new & modern intelligent temperature and humidity transmitter based on a revolutioning CMO Sens technology. It combines sensors, AD converting and calibration in the same technology. Serial communication and digital sensor techniques are the keywords X-Hum Analog talks to the sensor in a serial fashion.
X-Hum Analog is based on this new intelligent sensor element, and uses
all the features that follows. It needs never to be calibrated , as the sensor itself is digital and calibrated from the factory.. 10 bit accuracy / small tolerances combined with great repeatability in different environments makes It ideal for high precision temperature and humidity transmitters.
X-Hum Analog is a digital transmitter with an analog interface,
12-24V ~/= supply with polarity protection and supports a 0-10V output for the RH measurements.
X-Hum Analog can be delivered in 2 different tolerances, 3% and 5% .
X-Hum Analog has an integrated cable moulded to a cable entry and is terminated with a M12 sensor plug with 4 poles for connecting to older equipment, as well as new equipments.
X-Hum Analog is capsulated in a Polycarbonate cabinet, with separate lid and sealing , that makes the unit IP67 tight. The sensor itself is protected from a PP+PTFE protective cap and an O-ring |
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Features:
Accuracy up to ±1.7 % RH
Digital probe of the 6600 instruments: can be calibrated and exchanged and is equipped with its own order number
Wall, duct and cable probes, can be configured upon customer request and are heat resistant up to +120 °C
Highest availability by means of early warnings, e.g. in the event of sensor failure, condensation etc. (preventative maintenance)
Different assembly variants:
Wall-mounted version
Duct version
Probe version
Optimum calibration concept with
adjustment of entire signal chain, including analog adjustment, without dismantling the transmitter
1-point adjustment can be performed on-site easily and quickly using t400 or t650
2-point adjustment via P2A software or user menu |
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The Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT330 was developed for demanding industrial applications where stable measurement and wide customization possibilities are important.
As a totally new feature in this product class, the HMT330 has a large numerical and graphical display with multilingual user interface. It allows the user to easily monitor measurement trends with 1-year history.
Vaisala HUMICAP® products have been the market leaders in industrial and meteorological humidity measurements for over a decade.
The new HMT330 series consists of six models covering the full humidity measurement range from 0 to 100 %RH. The temperature ranges are between –70 and +180 °C, and pressure ranges between 0 and 100 bar, depending on the model. In very humid or chemically harsh conditions, Vaisala's unique warmed probe and chemical purge features help to maintain measurement reliability.
The HMT330 can output multiple humidity parameters, and the outputs available include three analog outputs, serial interfaces, and alarm relays. A choice of mains or DC power and several optional mounting accessories make it easy to install the instrument.
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The Ascon’s “H” series includes three humidity transmitters designed to meet the requirements of the HVAC and storerooms applications from the simple ones to the more sophisticated ones.
All transmitters feature a highly accurate capacitive sensor integrated in a silicon microchip. This new technology allows for accurate process measurements, is extremely reliable and offers excellent long-term stability. The sensor is very durable and moisture resistant. For easy and fast replacement the sensor is built into the “Humi-Chip” module, no re-calibration is required. Three types of interchangeable and replaceable filters can be selected depending upon the application, for clean or dusty or aggressive chemicals environments. H1, the simpler model, includes one humidity output and one temperature output. On the other models three outputs are available and configurable for relative humidity, dew point, temperature, temperature and dew point temperature difference. Available output signals are 0/4...20mA 2 wire, 0…1V, 0…5V or 0...10V.
The H3 and H5 models include: configurable alarms with relay output, real time clock and RS485 Modbus RTU for serial communications and configuration. Gateways for Ethernet, PROFIBUS, DeviceNet and CANopen connections are available.
The “H5” model includes alarm events memorization and data logging of the main measurements. For further operator ease of use, on all the models, the relative humidity values can be displayed on the optional integrated LCD display. Housings are IP66 for wall or duct mounting; remote sensor model is also available. |
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Relative Humidity/Temperature Transmitter - Model 657-1
±2% Accuracy, 0-100% RH, Dual Channel Design
Relative Humidity/Temperature Transmitter - Model 657C-1
±2% Accuracy, 0-100% RH, Dual Channel Design, Conduit Housing
Relative Humidity/Temperature Transmitter - Series HU
±2% Accuracy, 0-100% RH, NEMA 4 (IP56) Enclosure
Relative Humidity/Temperature Transmitter - Series RH/RHL
±2% or ±3% Accuracy, 0-100% RH, NEMA 4X (IP65) Enclosure
Relative Humidity/Temperature Transmitter - Series HT
±3% Accuracy, 10-90% RH, 2 Wire Design, Duct or Wall Mount
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Minco models AH71, AH72, and AH73 are 2-wire temperature compensated humidity transmitters that are FM and CFM approved for use in hazardous locations. Intrinsically safe models are available with an optional temperature transmitter output. The AH73 is also available with an optional digital display for remote indication of relative humidity and temperature.
The transmitters utilize a thin film capacitive humidity sensor which provides outstanding sensitivity and chemical robustness. The transmitter converts the humidity sensor’s signal into a 4 to 20 mA DC current, which changes proportionally from 4 mA at 0% RH to 20 mA at 100% RH. The optional temperature loop produces a second 4 to 20 mA DC output where the current changes from 4 mA at the lowest temperature of the range, to 20 mA at the top of the temperature range. The leads that supply power also carry the current signal.
- Accuracy of ±2.5% RH
- Temperature compensated
- Temperature output option
- One-point field calibration
- NIST traceable calibrations
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Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT360
The HMT360 transmitter can be installed directly into an explosive area, even those classified as having a constant risk of explosion (Zone 0 / Division 1). The HMT360 complies with strict classifications from FM (USA), PTB (CENELEC, Europe), CSA (Canada), TestSafe (Australia) and TIIS (Japan).
Five models are available for a variety of applications:
• HMT361 for wall mounting
• HMT363 for confined spaces
• HMT364 for high pressures (up to 100 bar/1450 psig) or vacuum
• HMT365 for high temperatures (up to +180 ºC / 356 °F)
• HMT368 for pressurized pipelines as high as 40 bar (580 psig)
The transmitters measure relative humidity between 0...100 %RH. As calculated variables they also output dewpoint and wet bulb temperature, mixing ratio and absolute humidity. The structure of the transmitter is modular: the interchangeable probes are easy to remove and calibrate.
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Transmet IS is an easy to install, self-contained dew-point transmitter for the measurement of the moisture content of flammable and non-flammable gases, and has been specifically designed for use within hazardous areas. Housed in a stainless steel case, Transmet IS offers ingress protection to IP66 (NEMA 4). With a wide operating range from -100 to 20 °C dew point and accuracy of up to 1 °C dew point it is the most complete dew-point transmitter available. Transmet IS has a fast response speed that gives the user a continuous measurement in real time. No configuration or calibration is necessary - Transmet IS is delivered configured and calibrated, ready for installation and operation.
Transmet IS is ATEX certified by Baseefa (2001) Ltd for use in hazardous areas to II 1G EEx ia IIC T4 when used with a pair of isolation or shunt diode barriers for signal and power supply connections. In addition to its ATEX certification, Transmet is also FM (Factory Mutual, USA) listed and CSA (Canada) approved.
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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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T261 Relative humidity transmitter
Relative humidity measurement
Range: 0...100% RH-20...+80°C
Scale configurable on request:
0...50°C, 0...100°C, -20...80°C, -30... 20°C,
-30... 70°C
Output signal configurable on request: current/voltage depending on version
Power supply: 10...32 VDC
Humidity output signal linearized and compensated from 0 to 60°C via digital processing
Thin-film capacitive humidity sensor
Sensor response time: < 10 seconds
On request, linearization for a specific isotherm
Long-term drift: <2% RH/year
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Typical Applications:
Humidifiers and dehumidifiers
HVAC + Building Management Systems
Meteorology, Storage rooms / Test chambers
Agriculture
Benefits:
Small and rugged, long term stability, competitively priced,
range of output options including 10 bit digital. |
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The HMP228 is a fast, reliable and accurate on-line detection system for water in oil.
Moisture measurements from lubrication oil can significantly cut maintenance costs and prolong machine lifetime. The HMP228 measures water activity and temperature from oil. In connection with oil, water activity measurement offers several advantages compared to the traditionally measured variable, parts per million (ppm). Water activity indicates directly whether there is risk for free water formation. The measurement is independent of the type, aging or temperature of the oil.
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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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Humidity sensors from Measurement Specialties are designed to improve performance, reduce energy consumption and increase safety. In any environment where temperature affects performance, compensating for humidity should also be considered. Typical applications for humidity sensors include automotive, appliances, HVAC and medical.
Measurement Specialties recently acquired Humirel, a world leader in the design and manufacture of innovative humidity and temperature sensors. Humirel’s proprietary manufacturing processes, derived from the semiconductor industry, are strictly controlled to guarantee consistent output. A high level of automation in the board assembly process makes these humidity/temperature sensors ideal for high volume production required for large OEM programs. Humidity sensors are available as sense components, assemblies with voltage (analog) output or PCB modules for frequency (digital) output.
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Humdity- and Humidity-and Temperature Transmitters for use in air-conditioning systems, building services management systems and ventilation technology. Use of capacitive humidity sensors is a guarantee of high long term stability, resistance to dew formation, small hysteresis and good dynamic performance.
In this product group Galltec+Mela offers transmitters, specially adapted to the needs of the ventilation and air-conditioning sector but as well standard transmitters for all applications where air humidity and temperature has to be monitored. For more difiicult applications we offer our transmitters for industrial use.
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Features:
- Compact size, watertight enclosure and easy mounting.
- Fast, accurate and excellent long-term stability.
- Wide input voltage range. (12 to 40 VDC)
- Available with either Current or Voltage output. |
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The humidity sensor FG80 with Polyga® sensor element for the measurement of relative air humidity or as combined transmitter with additional temperatur sensor element for simultaneous temperature measurement.
The very robust Polyga® sensor element offers a very good long-term stability and hight accuracy at high humidity. |
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The humidity and temperature transmitters for industrial applications measure relative humidity and temperature f.i. in air and other non-aggressive gases within a (working) temperature range up to 200°C or under pressure up to 25 bar.
Galltec+Mela offer as well versions for applications in gases containing ammonia or transmitters in die cast housing for outdoor use.
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| This humidity and temperature sensor with fast reacting capacitve sensor element has been approved for us in areas where there is danger of an explosion. |
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