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QFA4171 | Outside Air RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA | Siemens

This Q-Series Outdoor Air Relative Humidity and Relative Humidity & Temperature Sensor monitors and transmits changes in humidity and temperature to the building control system. This unit is especially suited for HVAC applications where high accuracy and short response times for measuring relative humidity are required. It has a 2 percent certified accuracy, a 4 to 20 mA humidity output signal, and a 4 to 20 mA temperature output signal.

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Documents and manuals

Siemens QFA4171 Documents

Datasheet(Room_sensor QFA41..)Datasheet(QFA3100_4100 Series RH Sensors for Critical Environments or Outdoor Use Technical Specification Sheet)Datasheet(Q-Series Relative Humidity and Relative Humidity and Temperature Sensors for Critical Environments and Outdoor Air Technical Instructions)Declaration of conformity(EU Declaration of Conformity QFA41xx/AQF41xx)Declaration of conformity(RCM Supplier's Declaration QPA../QPM../QFA..)Declaration of conformity(UK Declaration of conformity for QFA41xx/AQF41xx)Declaration of conformity(Test report MTBF for QFM... QFA..)Environmental Declaration(Room sensor for relative humidity and temperature)Installation instruction(Q-Series Outdoor Air Relative Humidity and Relative Humidity and Temperature Sensors Installation Instructions) Installation Instructions More Info

Overview

Details for QFA4171

Outside Air RH and Temp Sensor, 2 percent certified, RH: 4-20 mA T: 4-20 mA

Specifications

Measurement range humidity: 0…100 % r.h.
Measuring range, temperature: 0…50 °C, -35…35 °C, -40…70 °C
Time constant: Humidity: 20 s, Temperature: 510 s
Signal output humidity: DC 4...20 mA
Signal output temperature: DC 4...20 mA
Operating voltage: 13.5…35 VDC
Analog outputs: 4-20 mA
Measuring range: Temperature: -40 to 158°F; Humidity: 0 to 100% RH
Measurement accuracy: At 15…35 °C: ±0.6 K, 23 % r.h., 0…100 % r.h.: ±2 % r.h.
Communication: Includes 3-point calibration certificate
Display: Not applicable
Dimensions (W x H x D): 80 x 144 x 39 mm