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Temperature, Relative Humidity and Air speed transmitters

Temperature, Relative Humidity and Air speed transmitters

Product catalog summary

Overview: This document provides comprehensive specifications and installation instructions for various air speed transmitters, including models HD2903T, HD29V3T, HD2937T, HD29V37T, HD29371T, HD29V371T, HD403TS, and HD4V3TS. These devices are utilized in sectors such as HVAC/BEMS, pharmaceuticals, museums, cleanrooms, industrial, and civil engineering for measuring air speed, temperature, and humidity.

Specifications: The transmitters measure air speed from 0.05 to 20 m/s with varying accuracy, temperature from -10 to +60°C, and relative humidity from 5 to 98% UR. Outputs include 4-20mA or 0-10Vdc, with power supply requirements of 16-40Vdc or 12-24Vac.

Installation: Two installation systems are described: TO with a horizontal probe attached to the electronics container, and TC with a probe connected via cable. The document details the use of flanges and cable glands for secure installation in ventilation ducts.

Models and Features: Each model is designed for specific measurements: HD2903T and HD29V3T for air speed, HD2937T and HD29V37T for air speed and temperature, and HD29371T and HD29V371T for air speed, temperature, and humidity. The HD403TS and HD4V3TS series utilize hotwire technology for air speed measurement.

Technical Notes: Proper sensor orientation in airflow is crucial. Guidance is provided on selecting measurement ranges and response times using dip-switches and jumpers. Factory calibration of transmitters eliminates the need for user adjustments.

Ordering Information: Detailed ordering codes are provided for each model, specifying probe lengths, cable lengths, and output types. Dimensions and drilling templates for installation are included.

Product Overview: The HD103T.0 is an active air speed and temperature transmitter with an omnidirectional hotwire probe. It offers configurable analogue outputs, including 4…20mA, 0…20mA, and 0…10Vdc, with additional options available upon request. Designed for clean air environments with humidity below 90%.

Specifications:

Air Speed Measuring Range: 0.05…5m/s
Air Speed Accuracy: ±0.04m/s (0…0.99m/s), ±0.2m/s (1…5m/s) at 50%RH and 1013hPa
Temperature Measuring Range: -20…+80°C
Temperature Accuracy: ±0.3°C (0…70°C), ±0.4°C (remaining range)
Output Options: 4…20mA, 0…20mA, 0…10Vdc (0…5Vdc and 0…1Vdc on request)
Load Resistance: RL < 500Ω for current outputs, RL > 100kΩ for voltage outputs
Power Supply: 24Vac ±10%, 50…60Hz (110Vac or 230Vac on request)
Operating Temperature: Electronics: -5…+50°C, Probe: -20…+80°C
Compensation Temperature: 0…+80°C
Storage Temperature: -10…+80°C
Protection Class: IP67
Case Dimensions: 120 x 80 x 55 mm (without probe)
Probe Cable Length: 5m

Installation Notes:

Select the desired air speed and temperature output using the jumpers on the board.
Ensure the probe is used in clean air with humidity below 90%.
Transmitters are factory calibrated; do not mix probes and instruments to avoid recalibration.

Ordering Information: To order, use the code HD103T.0, specifying the desired output and power supply options. The device includes an omnidirectional probe with a protective cover and a 5-meter cable.

Contact Information: Delta Ohm srl - Via G. Marconi, 5 - 35030 Caselle di Selvazzano (Pd) - Italy
Tel: 0039 0498977150
Fax: 0039 049635596
Email: [email protected]
Website: www.deltaohm.com

Catalog excerpts

Temperature, Relative Humidity and Air speed transmitters-1

HD103T.0 HD2903T… - HD29V3T… HD2937T… - HD29V37T… HD29371T… - HD29V371T… HD403TS… - HD4V3TS… • Trasmettitori di velocità dell’aria • Trasmettitori di velocità e temperatura dell’aria • Trasmettitori di velocità, temperatura e umidità relativa dell’aria • Trasmettitori di velocità dell’aria a filo caldo • Air speed transmitter • Temperature, Air speed transmitters • Temperature, Relative Humidity and Air speed transmitters • Hotwire Air speed transmitters I GB

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Temperature, Relative Humidity and Air speed transmitters-2

HD2903T… HD29V3T… HD2937T… HD29V37T… HD29371T… HD29V371T… Trasmettitori di velocità dell’aria serie HD2903T… - HD29V3T… Trasmettitori di velocità e temperatura dell’aria serie HD2937T… - HD29V37T… Trasmettitori di velocità, temperatura e umidità relativa dell’aria serie HD29371T… - HD29V371T… La famiglia di trasmettitori della serie HD29… è impiegata nel controllo della velocità dell’aria nel campo del condizionamento e della ventilazione (HVAC/BEMS), nei settori farmaceutico, museale, camere bianche, condotti di ventilazione, nei settori industriali e civili, in luoghi affollati, mense, auditori,...

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Temperature, Relative Humidity and Air speed transmitters-11

HD2903T… HD29V3T… HD2937T… HD29V37T… HD29371T… HD29V371T… Air speed transmitters HD2903T… - HD29V3T… series Temperature, Air speed transmitters HD2937T… - HD29V37T… series Temperature, Relative Humidity and Air speed transmitters HD29371T… - HD29V371T… series The HD29 series of transmitters… are used for controlling air speed for conditioning and ventilation applications (HVAC/BEMS) in the following sectors: pharmacy, museums, clean rooms, ventilation ducts, crowded places, canteens, auditoria, gyms or high-density farms, as well as industrial and civil sectors. The sensors in combination with...

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Temperature, Relative Humidity and Air speed transmitters-20

Delta Ohm srl - Via G. Marconi, 5 - 35030 Caselle di Selvazzano (Pd) - Italy Tel. 0039 0498977150 r.a. Fax 0039 049635596 - E-mail: [email protected] Web Site: www.deltaohm.com 01 12.06 RoHS 2002/95/EC Costruzione strumenti di misura portatili e da tavolo Trasmettitori a loop di corrente o tensione Temperatura - Umidità - Pressione Velocità dell’aria - Luce - Acustica pH - Conducibilità - Ossigeno disciolto - Torbidità Elementi per stazioni meteo Manufacture of portable and bench top instruments Current and voltage loop transmitters Temperature - Humidity - Pressure Air speed - Light - Acoustics...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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