Siemens Building Technology 544-577-40 Sensor
The Siemens 544-577-40 is a heavy-duty liquid immersion temperature sensor engineered for precision monitoring in HVAC hydronic systems. This unit features a high-accuracy 1k Ohm Platinum RTD (Ref. 375a Alpha) sensing element, providing stable and linear resistance output across a broad operating range of 0°F to 250°F (-18°C to 121°C). Designed for direct mounting into piping systems, it includes a 4-inch stainless steel probe and a matched thermowell to protect the sensing element from high-velocity flow and corrosive fluid conditions, ensuring long-term signal integrity without drift. The rugged galvanized enclosure and lead-wire connection type make it a field-ready solution for contractors integrating data into Siemens Building Technology systems or compatible third-party building automation controllers.
Key Benefits
- Platinum RTD Precision: The 1000 Ohm Platinum element (375 Alpha) ensures superior accuracy and repeatability compared to standard thermistors.
- Robust Protection: Includes a 4-inch 300 series stainless steel thermowell for high-pressure applications and protection against process fluids.
- Broad Compatibility: Seamlessly integrates with Siemens HVAC sensors (IMM Series) and most building management systems (BMS) accepting 1k Ohm Pt RTD signals.
- Durable Construction: Features a moisture-resistant metal enclosure and high-quality lead connections for reliable operation in mechanical room environments.
Common Questions
Does this sensor come with the mounting well?
Yes, the Siemens 544-577-40 is supplied with a 4-inch stainless steel thermowell as standard, allowing for immediate installation into threaded pipe fittings.
Can this sensor be used in potable water systems?
No, the housing and materials for the 544 series are specifically designed for HVAC hydronic loops and non-potable water applications.
Is this a direct replacement for other Siemens immersion sensors?
This model is a standard for 1k Ohm Pt RTD requirements. Always verify the insertion depth and RTD curve (375 Alpha) against your controller’s input specifications before installation.
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.
Original: $88.65
-65%$88.65
$31.03Siemens Building Technology 544-577-40 Sensor
The Siemens 544-577-40 is a heavy-duty liquid immersion temperature sensor engineered for precision monitoring in HVAC hydronic systems. This unit features a high-accuracy 1k Ohm Platinum RTD (Ref. 375a Alpha) sensing element, providing stable and linear resistance output across a broad operating range of 0°F to 250°F (-18°C to 121°C). Designed for direct mounting into piping systems, it includes a 4-inch stainless steel probe and a matched thermowell to protect the sensing element from high-velocity flow and corrosive fluid conditions, ensuring long-term signal integrity without drift. The rugged galvanized enclosure and lead-wire connection type make it a field-ready solution for contractors integrating data into Siemens Building Technology systems or compatible third-party building automation controllers.
Key Benefits
- Platinum RTD Precision: The 1000 Ohm Platinum element (375 Alpha) ensures superior accuracy and repeatability compared to standard thermistors.
- Robust Protection: Includes a 4-inch 300 series stainless steel thermowell for high-pressure applications and protection against process fluids.
- Broad Compatibility: Seamlessly integrates with Siemens HVAC sensors (IMM Series) and most building management systems (BMS) accepting 1k Ohm Pt RTD signals.
- Durable Construction: Features a moisture-resistant metal enclosure and high-quality lead connections for reliable operation in mechanical room environments.
Common Questions
Does this sensor come with the mounting well?
Yes, the Siemens 544-577-40 is supplied with a 4-inch stainless steel thermowell as standard, allowing for immediate installation into threaded pipe fittings.
Can this sensor be used in potable water systems?
No, the housing and materials for the 544 series are specifically designed for HVAC hydronic loops and non-potable water applications.
Is this a direct replacement for other Siemens immersion sensors?
This model is a standard for 1k Ohm Pt RTD requirements. Always verify the insertion depth and RTD curve (375 Alpha) against your controller’s input specifications before installation.
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.
Product Information
Product Information
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Description
The Siemens 544-577-40 is a heavy-duty liquid immersion temperature sensor engineered for precision monitoring in HVAC hydronic systems. This unit features a high-accuracy 1k Ohm Platinum RTD (Ref. 375a Alpha) sensing element, providing stable and linear resistance output across a broad operating range of 0°F to 250°F (-18°C to 121°C). Designed for direct mounting into piping systems, it includes a 4-inch stainless steel probe and a matched thermowell to protect the sensing element from high-velocity flow and corrosive fluid conditions, ensuring long-term signal integrity without drift. The rugged galvanized enclosure and lead-wire connection type make it a field-ready solution for contractors integrating data into Siemens Building Technology systems or compatible third-party building automation controllers.
Key Benefits
- Platinum RTD Precision: The 1000 Ohm Platinum element (375 Alpha) ensures superior accuracy and repeatability compared to standard thermistors.
- Robust Protection: Includes a 4-inch 300 series stainless steel thermowell for high-pressure applications and protection against process fluids.
- Broad Compatibility: Seamlessly integrates with Siemens HVAC sensors (IMM Series) and most building management systems (BMS) accepting 1k Ohm Pt RTD signals.
- Durable Construction: Features a moisture-resistant metal enclosure and high-quality lead connections for reliable operation in mechanical room environments.
Common Questions
Does this sensor come with the mounting well?
Yes, the Siemens 544-577-40 is supplied with a 4-inch stainless steel thermowell as standard, allowing for immediate installation into threaded pipe fittings.
Can this sensor be used in potable water systems?
No, the housing and materials for the 544 series are specifically designed for HVAC hydronic loops and non-potable water applications.
Is this a direct replacement for other Siemens immersion sensors?
This model is a standard for 1k Ohm Pt RTD requirements. Always verify the insertion depth and RTD curve (375 Alpha) against your controller’s input specifications before installation.
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.
