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FHT20 series Wall Mount Temperature Humidity Transmitter 4-20mA Output

Focusens FHT20 series temperature humidity transmitter is a cost effective, highly accurate and reliable solution for measuring relative air humidity and temperature.

The enclosure minimizes installation costs and provides outstanding protection against contamination and condensation, thus ensuring flawless operation.

The FHT20 use the reliable humidity / temperature Sensirion sensor element SHT21 with excellent long term stability and resistance against pollutants. In combination with a long calibration experience, the FHT20 provides a measurement accuracy of ±3%RH and is available for wall-mounted with current, voltage output.

  • Brand:

    Focusens
  • Item NO.:

    FHT20
  • Product Origin:

    Hefei,Anhui,China
  • Shipping Port:

    Shanghai / Ningbo/Hefei/Shenzhen
  • Lead Time:

    4 weeks
  • Sensing Component:

    Sensirion SHT21
  • Working Temperature:

    -20---+80°C
  • Thermal Time:

    10
  • Product Detail

FHT20 series Wall Mount Temperature Humidity Transmitter 4-20mA Output


Focusens FHT20 series temperature humidity transmitter is a cost effective, highly accurate and reliable solution for measuring relative air humidity and temperature.


Technical Data

Parameter

Temperature

Relative Humidity

Measurement Range

0...+50°C

-0...+60°C

-20...+80°C

0...100% RH

Accuracy at 25°C

±0.3°C

±3% RH (20...80% RH)

Stability

<0.1°C / year

<0.5%RH / year

Response

<15s

<12s(63%)

power supply

2-wire: 12...2V 3-wire: 15...2V

Output

2-wire: ...20mA

3-wire: ...20mA / 0...1/5/10V

Load

2-wire: (VDD - 7V) / 0.02A

3-wire: Current mode less than 500Ω, Voltage mode greater than 10kΩ

Sensor protection

membrane filter

Housing material

Polycarbonate

Protection grade

IP65

Dimensions (mm)                    




Ordering Guide

SERIES

OUTPUT

T-SCALING

DISPLAY

FHT20

(A)   2-wire current mode ...20mA

(B)   3-wire current mode ...20mA

(D)   3-wire voltage mode 0...10V

(E)   3-wire voltage mode 0...5V

(F)   3-wire voltage mode 0...1V

(T1)     0...+50°C

(T2)  -0...+60°C

(T3)  -20...+80°C

(D)  LCD


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).  


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