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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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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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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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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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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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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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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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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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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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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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WetBoss 100 - Relative Humidity Transmitter
WetBoss 100 RH Sensor -- Sensing humidity may seem easy, reflecting back on the original horsehairs and the like, but indeed, precise monitoring of RH is anything but easy. There is a fair amount of snake-oil in the industry, i.e. specs boasting of 0-100% ranges, knowing full well that the very low and very high ends are only estimates, and shrouded by the 5% FS tolerance. The mysique deepens when one discovers the virtual impossibility of reliably field recalibrating an RH sensor. Recognizing that the only way to assure continued accuracy, Rel-Tek engineered a field replaceable sensor head that can be simply plugged in without having to recalbrate the unit. In essence, the factory calibration follows the head, not the base unit. We make no bones about it, our unit is dependable between 5-95%. And, we can assure continued accuracy throughout the entire life of the product.
Thus, the WetBoss 100 has evolved over a dozen years into an honest, dependable, quality product that does the job without a wimper. Every year or so you can replace the sensing head -- a five minute job -- returning the sensor to its factory new calibration. Powered by 12-30VDC, 4-20ma, 2-wire hookup. It is MSHA classified for hazardous methane areas. A digital meter can be purchased for front panel mounting to continuously display the RH reading in 1/2" high characters. The WetBoss 100 is US-manufactrured and serviced. Rely on Rel-Tek for the best solutions.
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Setra's family of humidity transmitters are offered in wall mount, duct mount and outside air unit configurations. Each unit includes a field replaceable sensor tip that allows the end user to replace the sensor on-site, thereby, reducing costly factory calibration and down-time during service intervals.
These humidity transmitters combine capacitive sensing technology with Setra's proven customer application specific integrated circuit (ASIC).
Model SRH
Applications
- HVAC/R Control
- Indoor Air Quality (IAQ)
- Laboratories
- Antiquities Preservation
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The HygroFlex series is ideal for all applications where exact measurement of humidity and temperature is of decisive importance, e.g. the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology, climatology, etc. There is hardly a field today in which these parameters may be ignored. It is ultimately the measuring task on hand that defines the instrument that best covers your needs.
The HygroFlex5 series offers you ultimate performance and flexibility thanks to its interchangeable HygroClip2 probes. The transmitters come in wall and duct mount versions. Many useful functions can be accessed with optional HW4 software.
HF5-Series is available with analog and digital outputs, so compatibilty with almost any monitoring or control system is assured. Digital versions may be networked togther to form a dedicated environmental monitoring system using HW4 software.
The new generation device not only has a unique calibration and adjustment process, but also allows probes to be interchanged in just a few seconds. This easy interchangeability during operation reduces down-time and service costs to a huge extent. The possibility of using every probe as a simulator with fixed output values is a big advantage for system validation. In the case of networked devices this can even be carried out online from a remote PC workstation.
Applications
High specification HVAC applications, building management systems, museums, libraries, environmental monitoring systems.
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High-precision humidity sensor Type FHAD36R
Wide range of temperatures
ALMEMO® D measuring module for humidity
and temperature
Capacitive humidity sensor with integrated signal processor,
for humidity measurement at the highest accuracy level
Unique correction and adjustment process
Digital output, i.e. all correction and sensor data saved in the
sensor itself
ALMEMO® connecting cable with digital ALMEMO® D
measuring module. Cable extensions up to 100 meters and
various connection methods see page 09.06
Four climate variables displayed Temperature, relative
humidity, dew point, and function channels for mixture ratio,
enthalpy
Factory or DKD calibration is performed on the sensor alone.
Fully accurate - irrespective of connecting cable and
AMEMO® measuring instrument.
Operation in sleep mode only possible with devices with
sleep delay function (ALMEMO 2590-2/3S/4S, 2690-8,
2890-9, 5690, 8590-9, 8690-9A, with Update)
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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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Relative humidity and Temperature transmitter THR-370/CM
For chambers
The THR-370/CM transmitters are designed to measure Humidity and Temperature in ambient pressure and
temperature. They are provided with dual 4/20 mA, 2-wire transmission outputs.
RH transmitter to be used in chambers
Capacitive relative humidity sensor
Standard IP-65 housing
Pt-100 temperature sensor (IEC-751)
Dual 4/20 mA outputs for RH and temperature. 2-wire transmission
Operating ranges:
- RH 0-100%
- temperature: 32/122 °F (0/50 °C)
Response time: 45 s. At 95 %RH
Max. Error: ±2% RH
Power supply 12 to 40 Vdc
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The optimal hardware structure for varying applications is achieved by combining various standard mechanical and electronic modules. The measured values are available on two freely configurable and scaleable analogue outputs and on the serial RS232 interface.
Two freely configurable optional alarm outputs can be set by software. The measured data and the corresponding MIN/MAX values can be viewed on the optional LCD display. By selecting a suitable housing version the EE29/EE31 series can be used for the entire range of humidity measurement applications:
Model A: for wall mounting
Model B: for duct mounting
Model D: with remote sensing probe for measurements in the range of -40...180°C
Model E: with remote sensing probe for pressure tight applications between 0,01...15 bar
Model F: with rear cable outlet for wall mounting in clean room applications
Technical data
Measuring range: 0-100% RH; -40...180 °C
Outputs: 0-5V, 0-10V, 4-20mA, 0-20mA
Accuracy: +/-2% RH; +/-0.2 °C
Supply: 24V AC/DC
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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 Rotronic make Hygrclip CP sensor for measurement of Temperature and %Rh . 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. 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. Optionally, Ethernet output can also be made available. 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 sensor elements and complete instruments, including relative humidity and temperature transmitters, handheld indicators and humidity generators.
Michell’s relative humidity and temperature generator, the S904, is designed to calibrate and verify the operation of relative humidity and temperature sensors and transmitters. With a chamber temperature range of 10 to 50oC, a uniformity of ±0.1 oC and the ability to generate 10-90 % RH, accurate and repeatable calibrations are made easy.
The WR293, a digital relative humidity and temperature transmitter with remote probe, uses the HYGROSMART module integrated within the interchangeable probe and cable. The device can be used in high-temperature applications thanks to the remote measurement element and small overall size. The interchangeable probe allows simple recalibration and low maintenance costs. As a product it fits all kinds of processes.
The PCmini 52 is Michell’s relative humidity and temperature transmitter mini probe. The microprocessor controlled and multi-point calibrated PCmini52 gives an excellent performance in terms of accuracy and linearity. The mini probe transmitter can provide two linear analogue outputs for temperature and relative humidity, dew point or absolute humidity.
DT282 and the PCmini70 make Michell’s relative humidity range unique by including the interchangeable HYGROSMART module. The interchangeable module lets you recalibrate the transmitters simply by replacing the sensor heads with the HYGROSMART modules. As a result, maintenance costs are greatly reduced and machine down time is minimized.
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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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ALMEMO® Humidity / temperature sensor in allweather
protective housing Typ FHA646AG
Supply voltage via ALMEMO® device.
Sensor cable connected via screw terminals,
optional up to 30m.
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The design of EE07 humidity and temperature transmitter series is based on a new electronic concept and on the SMD miniaturized E+E humidity sensor element type HC103.
EE07 transmitters are fully interchangeable, the connector enables their replacement within few seconds.
Calibration and sensor element data such as linearization and temperature compensation are stored in the elec- tronics integrated in the probe.
Digital E2Bus output signals for humidity and temperature allow easy and cost-effective interfacing to customers' electronics.
The choice of filter caps make the EE07 suitable for a large variety of applications.
Technical data
Measuring range: 0-100% RH; -40...80°C
Outputs: Digital output (E2Bus, 2 wire)
Accuracy: +/-2% RH; +/-0.3°C
Supply: 3.8 - 5.5V DC
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La série EE22 est caractérisée par une sonde interchangeable instantanément.
Les données de calibration étant stockées dans la sonde de mesure, l'échange de la sonde est réalisé sans perte de précision.
Les systèmes de calibration de haute précision et les technologies de microprocesseur nles plus modernes, sont la garantie d'une grande précision sur toute la gamme d'utilisation. L'excellente stabilité à long terme est un gage de tranquillité pour l'utilisateur des capteurs E+E.
Gammes de mesures: 0...100% HR; -40...80°C
Sorties: 0...1/5/10 V ou 4...20 mA
Incertitude: +/-2% HR; +/-0,3°C
Alimentation: 24V AC/DC
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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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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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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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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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TS UMD 00 probe is a 4-20 mA humidity transducer (proportional respectively to 0 and 100% of relative humidity) designed to obtain the humidity value of the environment where it is placed. The humidity survey uses a polymeric-capacitive sensor. The produced signal gets converted in a proportional 4-20 mA current and it is transmitted to the connected instrument.
TS UMD 01 has besides, a temperature transducer with 4-20 mA output (proportional respectively to -20 and +80 °C, -4 and +176 °F) designed to obtain also the temperature value; the temperature survey uses a PTC sensor.
TS UMD probes series are studied for wall installation with fixing clip.
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