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Temperature Sensors and Transmitters
Temperature Sensors and Transmitters

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ACI OSA Series

OSA Thermistor and RTD Sensors

ACI Series OSA Sensors are designed specifically for HVAC system temperature control. The OSA sensors come in thermistor and RTD sensor curves compatible with most BAS systems available today. OSA sensors mount in a NEMA 4 box with weather shield and easy-mount tabs.The ACI OSA Sensor should be located on an outside wall facing north in the northern hemisphere. Using the tabs on the box, mount to the exterior wall using screws appropriate for the wall construction.


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Features
  • ±0.36℉ (0.2℃) accuracy
  • Five-year warranty
  • Wide selection of thermistor or RTD curves
  • Stainless steel probes
  • Weather tight Housing
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Specifications

Accuracy:

Thermistor:±0.36°F (0.2°C)

RTD:±0.50°F (0.4°C)

Sensor Type:

Thermistor:10 kΩ, 20 kΩ, 100 kΩ

RTD:100Ω, 1000Ω 385 curve

Temperature Range:-40° to 275°F (-40° to 135°C)

Stability:

Thermistor:0.24°F (0.13°C) over five years

RTD:<±0.1°C drift

Heat Dissipation:Thermistor, 3 mW/°C (power needed to raise the temperature by 1°C)

Enclosure:Plastic

Wiring Terminations:10" of 22 AWG wire or terminal strip

Approvals:CE

Weight:1.2 lb (0.54 kg)

Warranty: 5 years

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Certifications




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