Siemens Building Technologies Duct Temperature Sensors Catalog Page
Duct Temperature Sensors
— Various Outputs
Standard Duct
Temperature Sensors
Duct Sensor
with Rigid Probe
Description
The Duct Temperature Sensors monitor and transmit
changes in temperature to the building control system.
Specic devices within the range are compatible with most
North American building automation systems.. They install
directly into the duct and are equipped with necessary
mounting hardware. All sensors incorporate precision
temperature sensing elements to accurately and reliably
measure temperature.
Features
• Variety of sensing elements
• Responsive to temperature change
• Accurate and reliable indication of duct temperature
• Simple installation requires no special tools
Duct Sensor
with Flexible Probe
536-811 Bracket Mounted
Duct Sensor
Applications
Duct temperature sensors are used throughout forced
air HVAC systems to monitor air temperature within the
ductwork. Single point sensors include one sensing
element. Averaging sensors incorporate multiple sensing
elements and are typically used in larger ducts where
some temperature stratication may occur.
Specifications
Output Signals
Active.......................................................................................... 4-20mA
Passive .................................................................... Pt 1k Ω (375 alpha)
Pt 1k Ω (385 alpha)
Ni 1k Ω @32F
Ni 1k Ω @70F
NTC 100k Ω
NTC 10k Ω Type II
NTC 10k Ω Type III
Accuracy
NTC Thermistors, mid-range ......................................... ±1.0°F (±0.5°C)
Pt RTD and Ni RTD, mid-range ................................... ±0.75°F (±0.4°C)
Conduit Connection Threads ................................. 1/2-inch – 14 NPSMI
Housing .......................... Standard NEC approved 2 × 4 inch (5 × 10 cm)
utility box with 1/2 inch (13 mm) knockouts
Probe Material ........... 0.028 Wall SAE J526 ZTEW or Galfan steel tubing
E-17
Sensors
www.usa.siemens.com/hvac
E-18
Sensors
Standard Duct Temperature Sensor Ordering
Application Description Output Signal Part Number Range Data Sheet
Duct
Averaging
Duct
Point
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 18 in. Probe 544-343-18 149-261P25
Duct Averaging Sensor with 24 ft. Probe 544-342-24 149-261P25
Duct Averaging Sensor with 24 in. Probe 544-343-24 149-261P25
Duct Averaging Sensor with 36 in. Probe 544-343-36 149-261P25
Duct Averaging Sensor with 48 in. Probe 544-343-48 149-261P25
Duct Averaging Sensor with 8 ft. Probe 544-342-8 149-261P25
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 18 in. Probe 535-490-18 149-263P25
Duct Averaging Sensor with 24 ft. Probe 533-380-24 149-263P25
Duct Averaging Sensor with 24 in. Probe 535-490-24 149-263P25
Duct Averaging Sensor with 36 in. Probe 535-490-36 149-263P25
Duct Averaging Sensor with 48 in. Probe 535-490-48 149-263P25
Duct Averaging Sensor with 8 ft. Probe 533-380-8 149-263P25
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 24 ft. Probe QAM2020.750 149-916
Duct Averaging Sensor with 24 ft. Probe
Duct Averaging Sensor with 18 in. Probe
Duct Averaging Sensor with 36 in. Probe 540-245-36 149-916
Duct Averaging Sensor with 72 in. Probe 540-246-72 149-916
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 24 ft. Probe
Duct Averaging Sensor with 24 ft. Probe
Duct Averaging Sensor with 8 ft. Probe
Duct Averaging Sensor with 8 ft. Probe
Duct Averaging Sensor with 16 ft. Probe
Duct Averaging Sensor with 24 ft. Probe QAM2012.750 149-916
Duct Averaging Sensor with 8 ft. Probe QAM2012.250 149-916
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 4" Probe 544-339-4 149-916
Duct Temp Sensor with 8" Probe 544-339-8 149-916
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 18" Probe 533-377-18
Duct Temp Sensor with 18" Probe 544-560-18
Duct Temp Sensor with 4" Probe 533-376-4
Duct Temp Sensor with 4" Probe 533-377-4
Duct Temp Sensor with 4" Probe 544-560-4
Duct Temp Sensor with 8" Probe 533-376-8
Duct Temp Sensor with 8" Probe 533-377-8
Duct Temp Sensor with 8" Probe 544-560-8
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 4" Probe QAM2020.010 149-915
Duct Temp Sensor with 8" Probe QAM2020.020 149-915
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 8" Probe QAM2021.020 149-915
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 4" Probe (2" x 4" box) 535-741-4 149-262P25
Duct Temp Sensor with 4" Probe (bracket mount) 536-811 149-134P25
Duct Temp Sensor with 8" Probe 535-741-8 149-262P25
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 4" Probe
Duct Temp Sensor with 4" Probe
Duct Temp Sensor with 8" Probe
Duct Temp Sensor with 8" Probe
Duct Temp Sensor with 18" Probe
Duct Temp Sensor with 4" Probe QAM2012.010 149-915
Duct Temp Sensor with 8" Probe QAM2012.020 149-915
Platinum 1k Ω
375 alpha
4-20 mA
Nickel 1k Ω @ 32F
Nickel 1k Ω @ 70F
NTC 100k Ω Type 2
NTC 10k Ω Type 2
NTC 10k Ω Type 3
NTC 10k Ω Type 2
NTC 10k Ω Type 3
NTC 10k Ω Type 2
NTC 10k Ω Type 3
Platinum 1k Ω
385 alpha
Platinum 1k Ω
375 alpha
4-20 mA
Nickel 1k Ω @ 32F
Nickel 1k Ω @ 70F
NTC 100k Ω Type2
NTC 10k Ω Type 2
NTC 10k Ω Type 3
NTC 10k Ω Type 2
NTC 10k Ω Type 3
NTC 10k Ω Type 2
NTC 10k Ω Type 3
Platinum 1k Ω
385 alpha
544-342-16
Controller
Dependent
533-380-16
20 to 120F
QAM2020.500
QAM2021.750 149-916
540-244-18 149-916
QAM2030.500 149-916
QAM2032.500 149-916
QAM2030.750 149-916
QAM2032.750 149-916
QAM2030.250 149-916
QAM2032.250 149-916
QAM2012.500 149-916
544-339-18 149-916
533-376-18
QAM2020.045
QAM2021.045 149-915
535-741-18 149-262P25
QAM2030.045 149-915
QAM2032.045 149-915
QAM2030.010 149-915
QAM2032.010 149-915
QAM2030.020 149-915
QAM2032.020 149-915
QAM2012.045 149-915
Controller
Dependent
20 to 120F
70 to 220F
4 to 122F
20 to 120F
70 to 220F
4 to 122F
20 to 120F
70 to 220F
4 to 122F
Controller
Dependent
149-261P25
149-263P25
149-916
149-263P25
149-263P25
149-263P25
149-263P25
149-263P25
149-263P25
149-263P25
149-263P25
149-263P25
149-915
www.usa.siemens.com/hvac
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