SERIES-BTT

DWYER SERIES BTT TEMPERATURE TRANSMITTER

The Dwyer Series BTT is a versatile temperature transmitter designed for Building Automation Systems (BAS) and energy management, available in duct, immersion, and outside air configurations. A field-adjustable temperature transmitter that converts a high-accuracy Pt1000 RTD signal into a standard 4-20 mA or 0-10 V analog output, or digital BACnet/Modbus communication. It features user-selectable ranges and a rugged NEMA 4X (IP66) enclosure.

DWYER SERIES BTT TEMPERATURE TRANSMITTER

The Series BTT is engineered to provide precise temperature monitoring for HVAC systems. By utilizing a high-quality platinum sensor, the unit ensures long-term stability and accuracy. The duct and immersion models include a stainless steel probe for rapid thermal transfer. A key advantage is its field flexibility: internal DIP switches allow users to toggle between multiple temperature ranges and output signals, significantly reducing the need for specific model inventories.

The Series BTT Temperature Transmitters offer transmitter output signals with the same form and fit as our popular TE thermistor and RTD sensors for building HVAC applications. Thermowells are required when using immersion models in liquid applications. Wall mount models are available on the Series BTT-E/N page.

PRODUCT APPLICATIONS

  • Building automation system temperature monitoring
  • Duct, immersion, and outside air models available
  • Radiation shield available for mounting in direct sunlight
  • Transmitter output allows for longer wire runs than standard thermistor sensors

Technical Sheets

Instruction Manual

Catalog Page

Specifications

DWYER SERIES BTT TEMPERATURE TRANSMITTER

  • Sensor Input: Platinum RTD (Pt1000), 0.00385 DIN curve.
  • Analog Outputs: Switch-selectable 4-20 mA, 0-5 VDC, or 0-10 VDC.
  • Digital Communication: Optional models with BACnet MS/TP or Modbus RTU protocols.
  • Temperature Ranges: Field selectable (e.g., 32 to 122°F, -40 to 140°F, 0 to 100°C).
    Accuracy: ±0.5°C @ 25°C.
  • Power Requirements: 13 to 35 VDC for current; 15 to 35 VDC for voltage.
  • Enclosure: Polycarbonate with IP66 (NEMA 4X) rating, UV resistant for outdoor use.
  • Mounting: Available in Duct (exposed probe), Immersion (for use with thermowells), and Outside Air (with solar radiation shield).

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