BTT-R25-1 | Outside Air Temperature Transmitter with 4 to 20 mA Output with solar radiation shield | Dwyer
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BTT-R25-1 | Outside Air Temperature Transmitter with 4 to 20 mA Output with solar radiation shield | Dwyer

Outside Air Temperature Transmitter with 4 to 20 mA Output with solar radiation shield

Brand: DwyerSKU: BTT-R25-1
Dwyer | BTT-R25-1
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Overview Details for BTT-R25-1

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Outside Air Temperature Transmitter with 4 to 20 mA Output with solar radiation shield

Series BTT Temperature Transmitters

Current or Voltage Output; NEMA 4X Enclosures

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.

NIST CALIBRATION available in Product Configurator.

The wall mount models can also be seen 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

Specifications

Series
BTT Temperature Transmitters
Category/Type
Temperature
Type
Transmitters
Series
BTT Temperature Transmitters
Temperature Sensor
Pt1000 RTD.
Range
-40 to 140°F (-40 to 60°C).
Temperature Limits
Operating: -40 to 302°F (-40 to 150°C).
Accuracy
±0.5°C @ 25°C.
Thermal Effect
±0.01%/°C.
Response Time
100 ms.
Wetted Materials
All models: 304 SS (probe); polycarbonate (housing);Duct and immersion models: Neoprene (gasket);Outside air models: Nylon (insert); silicone (O-ring).
Process Connection
1/2" NPT (immersion models only).
Electrical Connection
Removable terminal block; knocks out for conduit fitting.
Conduit Connection
1/2" NPT.
Probe Lengths
2.5 to 18" (depending on configuration).
Power Requirements
13 to 36 VDC for current models; 13 to 36 VDC or 16 to 28 VAC for voltage models.
Output Signal
4 to 20 mA or 0 to 10 VDC (depending on model).
Enclosure Rating
NEMA 4X (IP66) (immersions models require thermowell).
Weight
5.11 oz; 145 g (duct/immersion); 8.4 oz (238 g) (OSA without radiationshield); 1 lb 7.4 oz (663.4 g) (OSA with radiation shield).
Agency Approvals
CE.

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