SIEMENS QAM2171.040 Duct temperature sensor 400 mm, DC 4...20 mA

 

QAM2171.040Duct temperature sensor 400 mm, DC 4...20 mA

The QAM… duct temperature sensors are for use in ventilation and air conditioning
plants as:
• Supply or extract air temperature sensors
• Limit sensors, e.g. for minimum limitation of the supply air temperature
• Reference sensors, e.g. for compensation of the room temperature as a function of
the outside temperature
• Dew point temperature sensors
• Measuring sensors, e.g. for measured value indication or for connection to a building
automation and control system

Technical data
Power supply
Safety extra-low voltage (SELV)
Operating voltage (QAM2161.040
AC 24 V ±20%, or DC 13.5...35 V or AC/DC 24 V class 2 (US)
Operating voltage (QAM2171.040)
DC 13.5…35 V or DC 24 V class 2 (US)
Frequency
50/60 Hz at AC 24 V
External supply line protection (EU)
Fuse slow max. 10 A or
Circuit breaker max. 13 A Characteristic B, C, D according to EN 60898 or
Power source with current limitation of max. 10 A
Power consumption
≤1 VA
Perm. cable lengths Copper cable 0.6 mm dia. Copper cable 1 mm2 Copper cable 1.5 mm2 50 m 150 m 300 m
Measuring range
−50...+50 °C (R2 = factory setting), 0...50 °C (R1), −35...+35 °C (R3)
Probe Probe length Minimum bending radius 0.4 m 10 mm
Sensing element
Pt 1000
Time constant
30 s at 2 m/s
Dead time
<1 s
Measuring accuracy in the range of –25...+25 °C –50...+50 °C ±0.75 K ±0.9 K