TSR - RTD Temperature Probes From Kobold Instruments

RTD Temperature ProbesThe TSR - RTD Temperature Probes series TSR employs a resistive thermal device (RTD) to measure process temperature. Utilizing the relationship between resistance and temperature change in metals, RTDs provide a very stable and repeatable output. This makes them well suited for industrial applications which require a high degree of measuring accuracy over a wide range of temperatures. The probes employ a Pt-100 RTD element which is hermetically sealed in a 316 stainless steel probe. The TSR is
available in an RTD only version or RTD with head-mounted 2-wire 4-20 mA
transmitter. NPT or Tri-Clamp® connections are standard.


  • Temperature Range
    Normal Range: –58°F to +390°F
    Extended Range: –320°F to +1100°F

  • Maximum Pressure: 1450 PSIG

  • Wetted Parts: 316 SS

    Electrical Specifications

  • RTD Type: Pt-100 Class B per DIN 43670 á = 0.00385

  • RTD Accuracy: ±0.55°F at 32°F

  • Temperature Drift: 0.003 °F/°F

    Connection Housing

  • Threaded Probes: Aluminum, NEMA 4

  • Tri-Clamp® Probes:
    NEMA 4

    Transmitter Specifications

  • Output: 4–20 mA 2-wire

  • Supply Voltage: 10-36 VDC

  • Loop Resistance: Rmax = 50 (Vsupply +10)

  • Accuracy: ±0.1% of Span

  • Zero Drift: ±0.025%/°F

  • Span Drift: ±0.025%/°F.

Special Features:

  • Low Cost

  • Rugged Design

  • Factory Calibrated

  • Tri-Clamp® or NPT Threaded Connections

  • 4-20 mA Transmitter Available

Additional Product Info
Download Specifications