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Fluke 5607-75-X Full Immersion PRT

The 5607 Full Immersion PRT is designed to perform in extreme environments where both the transition junction and the lead wires are required to withstand temperatures covering the entire operating range of the probe.

This product is discontinued or reclassified

  • PRTs for laboratory freezers, autoclaves, and furnaces

    • 0°C to 450°C
    • Calibration accuracy of ±0.05°C
    • Transition junction and lead wires can withstand full PRT temperature range
    • Calibration not included; NVLAP-accredited calibration optional

    The 5607 Full Immersion PRTs are designed to perform in extreme environments where both the transition junction and the lead wires are required to withstand temperatures covering the entire operating range of the probe. (“Immersion” in this case simply means exposure to temperatures other than ambient and does not necessarily refer to the medium to which the PRT and its components are subjected.)

    Applications where “full immersion” of probe, transition junction, and lead wire is required can include calibration or validation of sensors used in laboratory or bio freezers, walk-in refrigerators, autoclaves, ovens, stability test chambers, furnaces or incubators. Other applications might include IQ/OQ/PQ qualification procedures, temperature mapping, or data logging in temperature controlled spaces or environmental chambers.

  • Are you performing calibrations or verifying the accuracy of sensors used in ovens or furnaces? The 5607 has been designed specifically for your application. Intended to be used in dry mediums only, the 5607 can be fully immersed over a temperature range of 0°C to 450°C. There isn’t another PRT on the market that can be fully immersed over this range and remain as stable and accurate (±0.055°C). The lead wire of the 5607 is shielded with braided stainless steel and connected to the transition junction with a strain relief spring. If you need longer lead wire than the standard length, call one of our Application Specialists today for a free quote. They can also help you determine which readout and probe termination are best suited for your application or help you select the right calibration for your probe.

  • General Specifications
    Temperature range 0°C to 450°C
    Nominal resistance at 0.01°C 100 Ω ± 0.1 Ω
    Temperature coefficient 0.00385 Ω/Ω/°C
    Accuracy1 ± 0.04°C at 0.01°C
    ± 0.07°C at 450°C
    Short-term repeatability2 ± 0.020°C at 0.01°C
    ± 0.035°C at 450°C
    Drift3 ± 0.02°C at 0.01°C
    ± 0.04°C at 450°C
    Hysteresis ± 0.015°C
    Sheath length 40 mm ± 5 mm
    (1.6 in ± 0.2 in)
    Sheath diameter 3.1 mm ± 0.1 mm (1/8 in ± 0.004 in)
    Sheath material Inconel® 600
    Transition junction temperature range4 0°C to 450°C
    Transition junction dimensions 35 x 7 mm (1.4 x 0.3 in)
    Sensor length 30 mm ± 3mm (1.2 in ±0.1 in)
    Sensor location 3 mm ± 1 mm from tip (1.2 in ± 0.04 in)
    Minimum insulation resistance 100 MΩ at 23°C
    Minimum immersion length Full immersion
    Maximum immersion depth in liquid medium Use SST or glass tube to protect transition junction
    Maximum immersion depth in dry Medium Full immersion
    Response time5 9 seconds typical
    Self heating (in 0°C bath) ±0.003°C
    Lead-wire cable type SST over-braid
    Lead-wire length 2.4 meters (8 ft)
    Lead-wire temperature range 450°C
    Calibration Calibration not included. NVLAP accredited calibration available. See ordering information.
    1. Includes calibration and 100 hr drift (k = 2).
    2. Three thermal cycles from min to max temp, includes hysteresis, 95% confidence (k = 2).
    3. After 100 hours at max temp, 95% confidence (k = 2).
    4. Temperatures outside this range will cause irreparable damage.
    5. Per ASTM E 644.
    Calibration Uncertainty
    Temperature 0°C 1924 Calibration Uncertainty6 0.03°C
    Tolerance w/out Calibration7 0.1°C
      157°C 1924 Calibration Uncertainty6 0.05°C
    Tolerance w/out Calibration7 0.2°C
      232°C 1924 Calibration Uncertainty6 0.05°C
    Tolerance w/out Calibration7 0.3°C
      450°C 1924 Calibration Uncertainty6 0.055°C
    Tolerance w/out Calibration7 0.5°C
    6. Lab code 200348-0
    7. Each PRT includes a certificate with a measured R0 value.
    An uncalibrated 5606 or 5607 meets ASTM E 1137 Grade A Classification of Tolerances.
    Use the coefficients below to achieve the tolerances listed in the “No Calibration” column or calculate the Grade A tolerance using the following formula: Grade A = ± [0.13 + 0.0017|t|]°C
    where: |t| = value of temperature (°C) without regard to sign. See ASTM E 1137.
    R0: Enter the R0 value provided
    A: 3.9083 x 10–3
    B: –5.775 x 10–7
    C: –4.183 x 10–4
    • Models
      Model Name Description  
      Fluke 5607-75-X Fluke 5607-75-X Full Immersion PRT
      Probe, Hi-Temp Immersion PRT, 75mm, 0 to 450°C

      † X = termination. Specify “A” (INFO-CON for 914X), “B” (bare wire), “D” (5-pin DIN for Tweener Thermometers), “G” (gold pins), “I” (INFO-CON for 1521 or 1522), “J” (banana plugs), “L” (mini spade lugs), “M” (mini banana plugs), “P” (INFO-CON for 1523 or 1524), or “S” (spade lugs).