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Instantly add the ST-R/ST-R*R Thermistor & RTD Sensor and 50,000+ more product series to your store or catalog  
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Kele Thermistor and RTD Sensor, ST-R/ST-R*R

ST-R/ST-R*R Thermistor & RTD Sensor

Brand: Kele
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Kele Thermistor and RTD Sensor, ST-R/ST-R*R
The PreCon ST-R*, ST-R*R Thermistor and RTD encapsulated Sensors provide precision remote temperature sensing for building automation systems and mechanical equipment room instrumentation. 

The active sensing element is a highly stable precision thermistor material or platinum RTD. 

The sensor is encapsulated with a low mass, high conductivity compound for good heat transfer characteristics. 

It is enclosed in a tough, miniature cylinder, 0.17" (0.43 cm) diameter, which is small enough to be installed in most HVac thermostat enclosures.
Features
  • Lifetime warranty
  • Wide selection of thermistor and RTD curves
  • Adaptable miniature sensor
  • High heat dissipation constant
  • Easy to mount with clips
  • Pre-aged, highly stable thermistor material

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Specifications

Brand

Accuracy

  • ± 0.28° C (± 0.36° F) - Thermistor
  • 0.03° C (± 0.054° F) - RTD Typical 71
  • 0.15° C (± 0.27° F) - RTD Typical 81, 85
  • 0.30° C (± 0.54° F) - RTD Typical 91
  • 0.40° C (± 0.72° F) - RTD Typical 63

Applications

  • Building Automation Systems
  • HVac Equipment
  • Mechanical Equipment Room Instrumentation

Approvals & Certifications

  • CE

Dissipation

  • Heat: 2.7 mW/°C, Power Needed to Raise the Temperature 1° C (1.8° F)

Electrical - Free Leads

  • 18” (45 cm) Free Leads for Typical 71 & 81

Electrical Connectors

  • 24 AWG

Materials of Construction

  • RTD: Platinum

Mounting

  • Direct Wall

NACE & NIST

  • NIST

Operating Temperature - Sensor

  • -34° to 110° C (-30° to 230° F)

Resistance

  • 2.252 to 100 kiloohms

RTD Type

  • Pt375 Curve, 1,000 ohms - Typical 91
  • Pt385 Curve, 100 ohms - Typical 71, 81, 1,000 ohms - Typical 85

Sensor, Probe Type

  • RTD
  • Thermistor

Stability

  • ± 0.13° C (± 0.24° F) over 5-Years - Thermistor

Temperature Coefficient

  • RTD: Positive Temperature Coefficient
  • Thermistor: Negative Temperature Coefficient

Temperature Range

  • -40° to 105° C (-40° to 221° F) - Thermistor/RTD

Documentation

Data Sheets

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