QAA64 隐蔽式室内温度传感器

1、Landis & Staefa Division 1/21722Room Temperature SensorQAA64 vandalproof though concealed mountingAcquisition of room temperature in spaces where the detector needs to beprotected against damage or destruction by people.Such spaces are public buildings like schools, administrative buildings, mul

2、ti-purpose halls, etc.All systems/units that are capable of acquiring and handling LG-Ni 1000 signals,such as: UNIGYR ®/VISONIK® via a measured value module (measured value input fortemperature detector LG-Ni 1000 AEROGYR, TEC, POLYGYR®The QAA64 has been designed specifically for inst

3、allation on recessed conduit boxeshaving a fixing hole circle dia. of 60 or 69 mm.The unit consists of a white plastic cover and a fixing bracket made of metal. The rear ofthe cover carries the connecting terminal strip and a measuring element LG-Ni 1000.The fixing bracket is fitted inside the reces

4、sed conduit box. A captive screw is used tosecure the cover to the bracket. UseEquipment combinationsMechnical designCM1N1722E / 02.1999Siemens Building Technologies2/2Landis & Staefa DivisionFor the permissible lengths of lines and measured value errors, refer to «Basic SystemData» of

5、 the respective control system.If, for some reason, the detector cannot be mounted in a location where it can correctlyacquire the room temperature, a resistor can be mounted to correct or adjust themeasurement. For this purpose, the detector has an auxiliary terminal (for details,contact Landis &am

6、p; Staefa service personnel.Location: On an inner wall of the space to be heated, if possible on the wall opposite theheating unit. Not in recesseds or shelves, not above or near heat sources.The end of the conduit at the detector must be sealed to prevent false measurementsdue to draughts through t

7、he conduit.The connecting wires are interchangeable.Installation instructions are supplied with the unit.Measuring range0.50 °CSensing elementLG-Ni 1000Time constant6.5 min (depending on air movement andthermal coupling to the wallConnecting terminals for2 x 1.5 mm2 or 1 x 2.5 mm2Perm. ambient

8、temperatureOperation0.50 °CTransport and storage25.+65 °CPerm. ambient humidityOperation85 % r.h. for 60 days (G DIN 40 040Transport and storage95 % r.h. for 30 days (E DIN 40 040Insulation classIII EN 60 730Protection standard of casingIP 40 IEC 529 (DIN 40050Weightapprox. 0.06 kgB1Rx M1722G 01LG-Ni1000B1Room temperature measuring signalM Measuring neutralRx Auxiliary terminal Engineerin