Siemens CO2/VOC_sensors_QPA63... : User Manual (2024)

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QPA63.1 QPA63.2 QPA63.1/AUS

Summary of content (8 pages)

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QPA63.1 1958P03 1958P02 1958P01 1 958 QPA63.2 CO2 /VOC Sensors QPA63.1/AUS QPA63... Sensors designed for acquiring indoor air quality in rooms or air ducts. Microprocessor-based units consisting of a selective photo-acoustic CO2 sensor and a VOC1) sensor with a heated stannic dioxide semiconductor. Operating voltage AC 24 V, output signals DC 0...10 V.
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Typical fields of use: • Acquisition of CO2 and VOC concentrations: In party rooms, lounges, fair pavilions and exhibition halls, restaurants, canteens, shopping malls, sports gymnasiums, sales rooms, and conference rooms. In this case, the AQP63.1 ventilation demand processor is required. It calculates the ventilation demand signal for the ventilation controller based on the CO2 and VOC signal.
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CO2 output VOC output U2 [V] U1 [V] 10 1958D02E Function diagram 10 8 6 5 4 2 CO2 [ppm] 2000 1600 800 1200 400 0 0 0 clean air Legend U1 Signal voltage at output U1 (VOC) in V U2 Signal voltage at output U2 (CO2) in V Explanation ppm = parts per million VOC concentration polluted air Mechanical design The sensors are designed for wall mounting. They are suited for use with most commercially available recessed conduit boxes.
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Duct mounting kit ARG64 The duct mounting kit is used for mounting the sensor in the extract air duct. The kit consists of a 2-sectional plastic housing and an attached metal rod with a clamped-on, adjustable duct fixing flange. At the bottom of the rod, there is an air inlet (3 holes) and an air outlet. The sensor mounting plate is installed in the lower part of the housing; the plate corresponds to the mounting plate of the QPA63...
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Mounting notes Sensor QPA63... Location: In the room or, with the duct mounting kit ARG64, in the extract air duct. When mounting in a room, a location with typical indoor air quality should be chosen, e.g. on an open wall, approximately 1.5...3 m above the floor. The sensor should not be mounted in niches, shelves, behind curtains, etc., or in locations where people are constantly present. The permissible ambient conditions should be observed. Mounting Instructions are printed on the packing.
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Technical data Power supply Range of use Measured value outputs U1, U2 Functional data Connection terminals Protective data Environmental conditions Norms and standards Materials and colors Weight Operating voltage (SELV) Frequency Power consumption CO2 sensing range Tolerance VOC sensing range Permissible air velocity in the duct Minimum distance between fan and sensor Voltage Current Permissible line lengths Copper cable 0.5 mm dia. Copper cable 1 mm2 Copper cable 1.5 mm2 Copper cable 2.
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Connection diagrams QPA63... M CO2 U1 U2 M G, M Operating voltage AC 24 V (SELV) G System potential M System neutral U1 Signal output "Measured value VOC", DC 0...10 V U2 Signal output "Measured value CO2", DC 0...10 V M Measuring neutral (terminals M are internally interconnected) 1958G02E Legend VOC 1958G01 G ARG64 with QPA63... CO2 VOC G M M U2 U1 B1 1 2 3 4 5 X1 A1 G (BN) Legend A1 B1 X1 M M (GN) (YE) B2 B1 (WH) (GY) Duct mounting kit ARG64 CO2 / VOC sensor QPA63...
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Dimensions (in mm) QPA63... 60 9,5 56 100 4,2 60 1958M01 56 42 90 ARG64 A A1: 125 A2: 76 125 ø 30 27,5 320 87654321 B max. 295 min. 170 1500 1958M02 25 53,5 42 30 17,5 35 A1 = with high, grey cover (standard version) A2 = with transparent cover 5 80 Cross-section A − B 60 70,2 1958M03 30 8/8 © 2006 Siemens Switzerland Ltd. Building Technologies HVAC Products CO2 / VOC sensors QPA63... Subject to alteration CM1N1958E 09.06.