User Manual

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Siemens Building Technologies Room sensor QFA65.1 CM1N1850E
HVAC Products 14.07.2003
Technical data
Range of use 10...95 % r.h.
Measuring accuracy at 20 °C
20...90 % r.h. ±5 % r.h.
40...60 % r.h. ±3 % r.h., (typical)
Time constant ≤2 min
Output signal, linear DC 1...9 V
10...90 % r.h.
Output current ±1 mA max.
Perm. line lengths
Copper cable 0.6 mm dia. 50 m
Copper cable 1 mm
2
150 m
Copper cable 1.5 mm
2
300 m
If the required line length exceeds 300 m, it needs to be shielded.
Range of use 0...50 °C
Sensing element LG-Ni 1000
Measuring accuracy at 20 °C ±0.6 K
Time constant 8 min (depending on air movement
and thermal coupling to the wall)
Perm. line lengths see to section "Engineering notes"
Operating voltage (SELV) AC 24 V ±20 %
Frequency 50 or 60 Hz
Power consumption 0.35 VA
Environmental conditions
Operation to IEC 721-3-3
Climatic conditions class 3K3
Temperature 0...50 °C
Humidity
1)
5...85 % r. h.
Transport to IEC 721-3-2
Climatic conditions class 2K3
Temperature −25...+70 °C
Humidity <95 % r. h.
Mechanical conditions class 2M2
Protection standard of casing IP 30 to IEC 529
Insulation class III to EN 60 730
Electromagnetic compatibility
Immunity EN 50 082-1
Emissions EN 50 081-1
conformance to EMC guideline 89/336/EEC
conformity as per
Australian EMC Framework Radio communication act 1992
Radio Interference Emmission Standard AS/NZS 3548
Connecting terminals for 2 x 1.5 mm
2
or 1 x 2.5 mm
2
Materials and colors
Housing front ASA + PC, NCS S 0502-G (white)
Botton section of housing ASA + PC, NCS 2801-Y43R (grey)
Base PC, NCS 2801-Y43R (grey)
Sensor (entirely) silicon-free
Weight approx. 0.1 kg
1) The permissible ambient humidity may reach 95 % r.h. for short periods of time
Humidity sensor
Temperature sensor
Allgemeine Fühlerdaten
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