1747 Room Temperature Sensor QAA32
1747 Room Temperature Sensor QAA32
1747 Room Temperature Sensor QAA32
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1 747<strong>Room</strong> <strong>Temperature</strong> <strong>Sensor</strong><strong>QAA32</strong>NTC resistor sensing elementUseIn HVAC plants to acquire the room temperature.FunctionsΩ9000700050003000<strong>1747</strong>D01The sensor acquires the room temperatureby means of its NTC resistor. The resistancevalue changes according to the ambienttemperature. It is available for further handlingby a suitable controller.10005 15 25 35°CType summaryType reference<strong>QAA32</strong>ARG70ARG70.1Description<strong>Room</strong> temperature sensorAdapter plate 120 x 120 mm for 4“ x 4“ conduit boxesAdapter plate 96 x 120 mm for 2“ x 4“ conduit boxesMechanical designThe units have been designed for wall mounting. They are suitable for use with mostcommercially available recessed conduit boxes. The cables can be introduced from therear (concealed wiring).CE1N<strong>1747</strong>en19.02.2001Siemens Building TechnologiesLandis & Staefa Division
Installation notesLocationNotesOn a flat inner wall of the space to be heated or air conditioned. Not in recesses,shelves, not behind curtains, not opposite or near heat sources. The unit must not beexposed to direct solar radiation.• When installing the unit, fix the baseplate first, then hook on the body and make theelectrical connections. Then fit the cover and secure it.• The end of the conduit at the sensor must be sealed to prevent false measurementsdue to draughts through the conduit.• The permissible environmental conditions should be observed.• Installation instructions are printed on the packing.Technical dataGeneral unit dataConnectionEnvironmental conditionsRequirementsMiscellaneousOperating range 0...40 °CSensing element NTC resistor, 3 kΩ at 25 °CMeasuring tolerance at 25 °C±0.3 KTime constant (with air movement) approx. 6 minTerminals for cross-sectional areas of 2 x 1.5 mm 2 or 1 x 2.5 mm 2OperationClimatic conditions<strong>Temperature</strong>HumidityPollution degreeTransportClimatic conditions<strong>Temperature</strong>HumidityMechanical conditionsto IEC 721-3-3class 3K50...50 °C
DimensionsUnit and Baseplate8630 30302899,68630283001M0196,436283,6283001M02Siemens Building Technologies <strong>QAA32</strong> <strong>Room</strong> <strong>Temperature</strong> <strong>Sensor</strong> CE1N<strong>1747</strong>enLandis & Staefa Division 19.02.20013/4
4/4©2000 Siemens Building Technologies Ltd.Subject to alterationSiemens Building Technologies <strong>QAA32</strong> <strong>Room</strong> <strong>Temperature</strong> <strong>Sensor</strong> CE1N<strong>1747</strong>enLandis & Staefa Division 19.02.2001
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