
Siemens Building Technology 533-380-16 Temperature Sensor
The Siemens Building Technology 533-380-16 is a heavy-duty duct averaging temperature sensor designed for precise climate monitoring in large-scale HVAC air handling units. Featuring a 16-foot flexible probe with a 100 Ohm Platinum RTD (385 alpha) sensing element, this unit provides an accurate weighted average of the air temperature across the entire duct cross-section. This is critical for preventing temperature stratification issues that lead to false readings or coil freeze-ups in high-volume airflows. The integrated 4-20mA output signal transmitter converts the RTD resistance into a robust linear signal, ensuring long-distance transmission without signal degradation or interference. Field technicians will appreciate the standard NEC-approved 2x4 inch galvanized steel junction box housing with 1/2-inch knockouts, allowing for seamless integration into existing Building Automation Systems (BAS) and controllers. Operating within a 20°F to 120°F (-7°C to 49°C) range, this sensor is a staple for commercial HVAC duct temperature sensing where reliability and linear performance are non-negotiable.
Key Benefits for the Contractor:- Accurate Averaging: The 16-foot flexible probe eliminates hot or cold spots in the duct, providing a reliable average temperature reading for large duct temperature control.
- Standard Output: The 4-20mA temperature transmitter is compatible with most industrial and commercial building controllers, simplifying field calibration and integration.
- Rugged Construction: Encased in a galvanized steel enclosure with a durable probe material designed to withstand high-velocity airflows.
- Tool-Free Probe Handling: The flexible copper or bendable steel probe allows for easy serpentine routing across duct coils without specialized bending tools.
How do I install the 16ft probe to ensure an accurate average?
For best results, route the flexible probe in a serpentine pattern across the air stream. Ensure you use mounting clips to prevent the probe from vibrating against the duct walls or coils, which can cause mechanical wear over time.
Is this sensor compatible with 24VAC systems?
Yes, the Siemens 533-380-16 typically operates on 18 to 36VDC or 24VAC ± 20% power supply, providing the standard 4-20mA loop signal required by most modern controllers.
What happens if the probe is too long for my duct?
The probe should be fully extended within the duct to maintain its averaging accuracy. If the 16-foot length exceeds your duct width, continue the serpentine pattern or consider the 8-foot (533-380-8) variant to ensure the entire sensing element is exposed to the air stream.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Building Technology 533-380-16 Temperature Sensor
The Siemens Building Technology 533-380-16 is a heavy-duty duct averaging temperature sensor designed for precise climate monitoring in large-scale HVAC air handling units. Featuring a 16-foot flexible probe with a 100 Ohm Platinum RTD (385 alpha) sensing element, this unit provides an accurate weighted average of the air temperature across the entire duct cross-section. This is critical for preventing temperature stratification issues that lead to false readings or coil freeze-ups in high-volume airflows. The integrated 4-20mA output signal transmitter converts the RTD resistance into a robust linear signal, ensuring long-distance transmission without signal degradation or interference. Field technicians will appreciate the standard NEC-approved 2x4 inch galvanized steel junction box housing with 1/2-inch knockouts, allowing for seamless integration into existing Building Automation Systems (BAS) and controllers. Operating within a 20°F to 120°F (-7°C to 49°C) range, this sensor is a staple for commercial HVAC duct temperature sensing where reliability and linear performance are non-negotiable.
Key Benefits for the Contractor:- Accurate Averaging: The 16-foot flexible probe eliminates hot or cold spots in the duct, providing a reliable average temperature reading for large duct temperature control.
- Standard Output: The 4-20mA temperature transmitter is compatible with most industrial and commercial building controllers, simplifying field calibration and integration.
- Rugged Construction: Encased in a galvanized steel enclosure with a durable probe material designed to withstand high-velocity airflows.
- Tool-Free Probe Handling: The flexible copper or bendable steel probe allows for easy serpentine routing across duct coils without specialized bending tools.
How do I install the 16ft probe to ensure an accurate average?
For best results, route the flexible probe in a serpentine pattern across the air stream. Ensure you use mounting clips to prevent the probe from vibrating against the duct walls or coils, which can cause mechanical wear over time.
Is this sensor compatible with 24VAC systems?
Yes, the Siemens 533-380-16 typically operates on 18 to 36VDC or 24VAC ± 20% power supply, providing the standard 4-20mA loop signal required by most modern controllers.
What happens if the probe is too long for my duct?
The probe should be fully extended within the duct to maintain its averaging accuracy. If the 16-foot length exceeds your duct width, continue the serpentine pattern or consider the 8-foot (533-380-8) variant to ensure the entire sensing element is exposed to the air stream.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens Building Technology 533-380-16 is a heavy-duty duct averaging temperature sensor designed for precise climate monitoring in large-scale HVAC air handling units. Featuring a 16-foot flexible probe with a 100 Ohm Platinum RTD (385 alpha) sensing element, this unit provides an accurate weighted average of the air temperature across the entire duct cross-section. This is critical for preventing temperature stratification issues that lead to false readings or coil freeze-ups in high-volume airflows. The integrated 4-20mA output signal transmitter converts the RTD resistance into a robust linear signal, ensuring long-distance transmission without signal degradation or interference. Field technicians will appreciate the standard NEC-approved 2x4 inch galvanized steel junction box housing with 1/2-inch knockouts, allowing for seamless integration into existing Building Automation Systems (BAS) and controllers. Operating within a 20°F to 120°F (-7°C to 49°C) range, this sensor is a staple for commercial HVAC duct temperature sensing where reliability and linear performance are non-negotiable.
Key Benefits for the Contractor:- Accurate Averaging: The 16-foot flexible probe eliminates hot or cold spots in the duct, providing a reliable average temperature reading for large duct temperature control.
- Standard Output: The 4-20mA temperature transmitter is compatible with most industrial and commercial building controllers, simplifying field calibration and integration.
- Rugged Construction: Encased in a galvanized steel enclosure with a durable probe material designed to withstand high-velocity airflows.
- Tool-Free Probe Handling: The flexible copper or bendable steel probe allows for easy serpentine routing across duct coils without specialized bending tools.
How do I install the 16ft probe to ensure an accurate average?
For best results, route the flexible probe in a serpentine pattern across the air stream. Ensure you use mounting clips to prevent the probe from vibrating against the duct walls or coils, which can cause mechanical wear over time.
Is this sensor compatible with 24VAC systems?
Yes, the Siemens 533-380-16 typically operates on 18 to 36VDC or 24VAC ± 20% power supply, providing the standard 4-20mA loop signal required by most modern controllers.
What happens if the probe is too long for my duct?
The probe should be fully extended within the duct to maintain its averaging accuracy. If the 16-foot length exceeds your duct width, continue the serpentine pattern or consider the 8-foot (533-380-8) variant to ensure the entire sensing element is exposed to the air stream.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












