Data Sheet for Product

Technical Specification Sheet
Document No. 149-805
October 27, 2008
Siemens Building Technologies, Inc. Page 1 of 3
Duct Temperature Sensors
Description
The Duct Temperature Sensors monitor and transmit
changes in duct air temperature to the building control
system. They provide accurate, reliable indication of
duct temperature. The sensor resistance varies
proportionally to the actual duct air temperature being
measured. They are well suited for application such as
heating and cooling, morning warm-up/cool-down, and
monitoring discharge air temperature.
Features
• Variety of sensing elements.
• Suitable for multiple duct applications.
• Responsive to temperature change.
• Accurate and reliable indication of duct temperature.
• Familiar installation requires no special tools.
Figure 1. Duct Temperature Sensors.
Ordering Information
Type Product Number Sensing Output Probe Length
QAM2112.040 Platinum 1K Ω, 385 α 16 inches (0.4 m)
QAM2112.200 Platinum 1K Ω, 385 α 6.5 feet (2 m)
Passive Resistance
QAM2130.040 NTC 10K Ω, Type 2 16 inches (0.4 m)
QAM2161.040
0 to 10 Vdc signal
[Platinum 1K Ω]
16 inches (0.4 m)
Active Output
QAM2171.040
4 to 20 mA signal
[Platinum 1K Ω]
16 inches (0.4 m)