FHT23 Series

Product catalog summary

Overview: The FHT23 Series is a miniature humidity and temperature transducer designed for accurate measurements across a wide range of conditions. It features a compact design, high flexibility, and stores calibration data and functions like linearization and temperature compensation within the probe. Outputs are available in analogue formats (0-5/10V or 4-20mA).

Typical Applications:

Indoor and outdoor environment monitoring
Communication machine rooms
Warehouse and building automation systems
Other areas requiring temperature and humidity measurement

Features:

Small size
Full interchangeability
Wide working range with high accuracy
High reliability and long-term stability

Technical Data:

Temperature Measurement Range: 0...+50°C, -40...+60°C, -20...+80°C
Relative Humidity Measurement Range: 0...100% RH
Accuracy at 25°C: ±0.3°C for temperature, ±3% RH (20...80% RH) for humidity
Stability: <0.1°C/year for temperature, <0.5% RH/year for humidity
Response Time: <15s for temperature, <12s (63%) for humidity
Power Supply: 2-wire/3-wire current mode and 0~5V voltage mode: 12~24V, 0~10V voltage mode: 18~24V
Output: 2-wire: 4...20mA, 3-wire: 0...10mA / 0...1/5/10V
Load: 2-wire: (VDD - 7V) / 0.02A, 3-wire: Current mode less than 500Ω, Voltage mode greater than 10kΩ

Ordering Guide:

Series: FHT23
Output Options: (A) 2-wire current mode 4...20mA, (B) 3-wire current mode 0...10mA, (D) 3-wire voltage mode 0...10V, (E) 3-wire voltage mode 0...5V
Temperature Scaling: (T05) 0...+50°C, (T16) -10...+60°C, (T46) -40...+60°C, (T28) -20...+80°C

Catalog excerpts

FHT23 Series General Miniature Humidity / Temperature Transducer Accurate temperature/humidity 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 FHT23 series. Calibration data and other relevant functions like linearization or temperature compensation are stored in the probe. The humidity and temperature measurement are available as analogue outputs (0-5/10V or 4-20mA). • indoor and outdoor environment monitor • the communication machine room • warehouse and building automation system • other need temperature and humidity mea places Technical Data Parameter Measurement Range Accuracy at 25°C Stability Response power supply Output Load Temperature Relative Humidity FHT23 Vl.O/Modification rights reserved www.focusens.com

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FHT23 Series General Miniature Humidity / Temperature Transducer Connection Diagram Ordering Guide SERIES 2-wire current mode 4...20mA 3-wire current mode 0...10mA 3-wire voltage mode 0...10V 3-wire voltage mode 0...5V FHT23 V1.0/Modification rights reserved www.focusens.com

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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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