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    Fluke 5608/5609 Secondary Reference PRT Probes with Calibration Options - Choice of Termination

    SKU
    5608/5609-PROBES
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    Fluke 5608/5609 Secondary Reference PRT Probes with Calibration Options - Choice of Termination
    Description
    Buy a Fluke Get a Free Fluke Logo

    * Buy a Fluke (Worth £150+ Ex VAT) and Choose a Free Fluke!

    Available until 31/08/24. For more details and to see your choice of free Fluke tool - View Offer

    Only available from authorised Fluke distributors, such as PASS Ltd. Claim direct to Fluke with your invoice. T&Cs apply.

    The Secondary Reference PRTs are very stable thermometers from -200° to 670° and are particular about the calibration. Provides accurate measurements in only 100mm of immersion as a result of its 1/4" diameter. Termination ranges available from A to S. Termination Key.

    Product Ranges

    • Fluke 5608-12-A Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-B Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-D Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-G Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-J Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-L Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-M Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-P Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-12-S Secondary Reference PRT Probe, 100 Ohm 1/8 × 12
    • Fluke 5608-9-A Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-B Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-D Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-G Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-J Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-L Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-M Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-P Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5608-9-S Secondary Reference PRT Probe, 100 Ohm 1/8 × 9
    • Fluke 5609-12-A Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-B Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-D Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-G Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-J Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-L Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-M Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-P Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-12-S Secondary Reference PRT Probe, 100 Ohm 1/4 × 12
    • Fluke 5609-15-A Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-B Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-D Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-G Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-J Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-L Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-M Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-P Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-15-S Secondary Reference PRT Probe, 100 Ohm 1/4 × 15
    • Fluke 5609-20-A Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-B Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-D Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-G Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-J Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-L Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-M Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-P Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-20-S Secondary Reference PRT Probe, 100 Ohm 1/4 × 20
    • Fluke 5609-300-A Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-B Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-D Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-G Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-J Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-L Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-M Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-P Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-300-S Secondary Reference PRT Probe, 100 Ohm 6 × 300mm
    • Fluke 5609-400-A Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-B Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-D Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-G Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-J Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-L Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-M Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-P Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-400-S Secondary Reference PRT Probe, 100 Ohm 6 × 400mm
    • Fluke 5609-500-A Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-B Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-D Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-G Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-J Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-L Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-M Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-P Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-500-S Secondary Reference PRT Probe, 100 Ohm 6 × 500mm
    • Fluke 5609-9BND-A Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-B Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-D Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-G Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-J Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-L Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-M Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-P Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Fluke 5609-9BND-S Secondary Reference PRT Probe, 100 Ohm 1/4 × 15" with 9" in 90° bend
    • Termination Key:
    • A (INFO-CON for 914X)
    • B (Bare wire)
    • D (5-pin DIN for Tweener Thermometers)
    • G (Gold pins)
    • J (Banana plugs)
    • L (Mini spade lugs)
    • M (Mini banana plugs)
    • P (INFO-CON for 1523 or 1524)
    • S (Spade lugs)
    Tech Specs
    Specifications
    Temperature Range 5608: -200 °C to 500 °C
    5609: -200 °C to 670 °C
    Nominal Resistance at 0.01 °C 100 Ω ± 0.5 Ω
    Temperature Coefficient 0.0039250 Ω/Ω/°C
    Relative Accuracy1 ± 0.007 °C at -200 °C
    ± 0.008 °C at 0 °C
    ± 0.020 °C at 420 °C
    ± 0.027 °C at 660 °C
    Short-Term Repeatability2 ± 0.007 °C at 0.010 °C
    ± 0.013 °C at max temp
    Drift3 ± 0.01 °C at 0.010 °C
    ± 0.02 °C at max temp
    Hysteresis ± 0.01 °C maximum
    Sensor Length 30 mm ± 5 mm (1.2 in ± 0.2 in)
    Sensor Location 3 mm ± 1 mm from tip (0.1 in ± 0.1 in)
    Sheath Material Inconel 600
    Minimum Insulation Resistance 5608: 500 MΩ at 23 °C, 20 MΩ at 500 °C
    5609: 500 MΩ at 23 °C, 10 MΩ at 670 °C
    Transition Junction Temperature Range4 -50 ºC to 200 °C
    Transition Junction Dimensions 71 mm x 12.5 mm (2.8 in x 0.49 in)
    Minimum Immersion Length5
    (<5 mK error)    		 5608: 80 mm (3.1 in)
    5609: 100 mm (3.9 in)
    Maximum Immersion Length 305 mm (12 in)
    Response Time5 5608: 9 seconds typical
    5609: 12 seconds typical
    Self Heating (in 0 °C bath) 5608: 75 mW/°C 5609: 50 mW/°C
    Lead-wire cable type PTFE 24 AWG
    Lead-wire length 1.8 m (6 ft)
    Lead-wire temperature range -50 °C to 250 °C
    Size 5608-9-X: 9 in x 1/8 in, -200 to 500 °C
    5608-12-X: 12 in x 1/8 in, -200 to 500 °C
    5609-12-X: 12 in x 1/4 in, -200 to 670 °C
    5609-20-X: 20 in x 1/4 in, -200 to 670 °C
    5609-300-X: 300 mm x 6 mm, -200 to 670 °C
    5609-400-X: 400 mm x 6 mm, -200 to 670 °C
    5609-500-X: 500 mm x 6 mm, -200 to 670 °C
    5609-9BND: 15 in x 1/4 in, 9 in bend, -200 °C to 670 °C
    [1] Includes short-term repeatability and 100 hr drift. Calibration will add additional uncertainties

    [2] Three thermal cycles from min to max temp, includes hysteresis, 99.9 % confidence (k=3)

    [3] After 100 hours at max temp, 99.9 % confidence (k=3)

    [4] Temperatures outside this range will cause irreparable damage. For best performance, the transition junction should not be too hot to touch

    [5] Per ASTM E 644
    NVLAP† Calibration Uncertainty
    Temperature Expanded Uncertainty (k=2)
    -197 °C 0.025 °C
    -80 °C
    -38 °C
    0.01 °C
    156 °C 0.030 °C
    231 °C
    419 °C 0.035 °C
    660 °C 0.050 °C
    Note: Calibration uncertainties depend on the uncertainties of the lab performing the calibration. Subsequent calibrations of this probe performed with different processes, at different facilities, or with changed uncertainty statements may state different uncertainties. †Lab code 200348-0
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    SKU 5608/5609-PROBES
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