HOME > FLUKE-CALIBRATION > PROBES > 5606 fluke-calibration logo

Fluke Calibration 5606 -200°C to 160°C Full Immersion PRT Probe

  • Ideal for for laboratory freezers, autoclaves, and furnaces
  • -200°C to 160°C
  • Calibration accuracy of ± 0.05°C
  • Transition junction and lead wires can withstand full PRT temperature range
  • Unique probe seal of 5606 prevents ingress of moisture
  • Calibration not included; NVLAP-accredited calibration optional
Fluke Hart Calibration 5606Click for larger image
Fluke Calibration 5606 Shown
Product Information
Datasheet 609 KB PDF
PDF HelpPDF Help

The Fluke Hart 5606 Full Immersion PRTs are designed to perform in extreme environments where both the transition junction and the lead wires are required to withstand tem-peratures 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.

The Fluke Hart 5606 is just two inches (50 mm) in length with a sheath diameter of 1/8 inch (3.1 mm). Since it can be fully immersed over its entire temperature range, you don’t have to worry about calculating minimum immersion depth—immerse the entire probe, transition junction, and lead wires, in either non-corrosive liquids or dry mediums ranging from –200 to 160 °C. The 100 W precision sensing element (alpha = 0.00385) is specially constructed to prevent the ingress of moisture while achieving calibration accura-cies as good as ±0.05 °C. You get both accuracy and flexibility built into a small, durable package.

The lead wires of the Fluke Calibration 5606 are made of single-conductor enameled copper wire which prevents moisture from wicking to the sensing element as it would if a more common, stranded lead wire were used. The diameter of the lead wire is no greater than 0.2 mm, making it easy to run lead wires through a freezer door to your readout or transmitter with effectively zero energy loss. The Hart 5606 has been proven in common heat transfer fluids such as silicone oil, mineral oil, ethanol, and even liquid nitrogen with no degradation of the transition junction seal or lead wire insulation.

Temperature range -200°C to 160°C
Nominal resistance at 0.01 °C 100 Ω ± 0.1Ω
Temperature coefficient 0.00385 Ω/Ω/°C
Accuracy ±0.04 °C at 0.01 °C
±0.06 °C at 160 °C
Accuracy: Short-term repeatability ±0.03°C at 0.01°C
±0.04°C at 160°C
Accuracy: Drift ±0.03°C at 0.01°C
±0.04°C at 160°C
Hysteresis ±0.015°C
Sheath length 50 mm ± 5 mm (2 in ± 0.2 in)
Sheath diameter 3.1 mm ± 0.1 mm (1/8 in ± 0.004 in)
Sheath material 316 SST
Transition junction temperature range -200°C to 160°C
Sensor length 50 mm °5 mm (2 in °0.2 in)
Sensor location 3 mm °1 mm from tip (1.2 in °0.04 in)
Minimum insulation resistance 20 MΩ at 23 °C
Minimum immersion length Full immersion
Maximum immersion depth in liquid medium Full immersion
Maximum immersion depth in Dry medium Full immersion
Response time 12 seconds typical
Self heating (in 0°C bath) ± 0.003°C
Lead-wire cable type Enameled copper wire
Lead-wire length 2.4 meters (8 ft)
Lead-wire temperature range 160°C
Calibration Calibration not included. NVLAP accredited calibration available. See ordering information.
Ordering Information
Model Description Buy Online Price
MFR ID: 3622866 
Fluke Calibration 5606-50-I Full Immersion PRT Probe, -200°C to 160°C , 50mm Buy Now Sale $360.00
(Reg. $400.00)