The QFA3200 Series Room Sensors, manufactured by Siemens Building Technologies, are produced for use with Siemens T.E.C.’s (Terminal Equipment Controllers). These devices combine sensors for relative humidity and temperature in one housing to advance room aesthetics and decrease installation time.
 |
| Siemens QFA3280.DWSC |
The controller and sensor communicate via an RJ-11 connection for simple, mistake-free wiring. The housings also include an RJ-11 tool port at the bottom for connecting to the Siemens platform configuration, and start-up tools at installation.
Speaking of installation, these sensors include all necessary hardware for standard mounting in a 2”x 4” electrical box, with straightforward instructions. These include the trim rings and matching gaskets, screws, and anchors which are provided for wall-mounting.
There are 3 variations regarding the display. The 4-character code at the end of the part number beginning with “D” indicate it has an LCD Display, while the “E” indicates No Display (to prevent unauthorized adjustments), and the “F” indicates Full HMI.
(You can find a link to the datasheet here.)
Here are a
few more technical specifications of the QFA3200 Series
Measurement range humidity: 0-100% Relative Humidity
Operating voltage: P1 connection to TEC
Analog outputs: P1 (BACnet TEC)
Measuring range temperature: 32 to 122°F; 0 to 50°C
Measurement accuracy: Temperature: +/- 0.9°F; Humidity: +/-2% between 10 to 90% RH, +/-3% outside this range
Communication: For use with BACnet TEC controller only
Dimensions (W x H x D): 5.25" x 3.0" x 3.75"
*Siemens Building Technologies offers a 2-year warranty on this series.
Please check out E-Controls.net for the QFA3200 Series of Relative Humidity & Temperature Sensors, or any other Combination RH/Temperature Transmitters.
E-Controls.net: “Your Online Source For Building Automation Supplies”.
