Secondary PRT with Calibration Options - 5608 and 5609

Secondary PRT with Calibration Options - 5608 and 5609 is rated 2.0 out of 5 by 1.
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  • 5608, 5609 Secondary Reference PRTs
  • 5608, 5609 Secondary Reference PRTs
  • 5608, 5609 Secondary Reference PRTs
  • 5608, 5609 Secondary Reference PRTs
  • 5608, 5609 Secondary Reference PRTs

Key features

  • 5608: –200 °C to 500 °C (80 mm minimum immersion)
  • 5609: –200 °C to 670 °C (100 mm minimum immersion)
  • ± 0.01 short-term stability
  • Calibration not included, NVLAP-accredited calibration optional, lab code 200348-0
  • Dry-well reference with 90 ° bend
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Product overview: Secondary PRT with Calibration Options - 5608 and 5609

The 5608 comes with a one-eighth inch (3.18 mm) diameter sheath in lengths of 9 inches or 12 inches. The 5609 comes with a one-quarter inch (6.35 mm) diameter sheath in lengths of 12 inches, 15 inches, and 20 inches; or with a 6 mm diameter in lengths of 300 mm, 400 mm, or 500 mm.

When looking for improved response time and reduced stem effect in shallow immersion, look for small diameter probes, because the measurement error called stem effect is caused by the diameter of the stem rather than the length of the stem.

Both of these probes have Inconel™ sheaths and are made using a special manufacturing process, giving them great precision over a wide temperature range. The sensors for these probes are reference-grade platinum and feature four-wire connections with less noisy measurements than two-wire counterparts.

As standard, each probe includes its resistance value at the triple point of water. If calibration is desired, you can order a NVLAP-accredited calibration from our laboratory; lab code 200348-0. On the report of calibration, you’ll get the test data and the ITS90 calibration coefficients that you can easily input into any Fluke Calibration thermometer. If you order your probe with an smart connector, we’ll program the coefficients directly into your connector, which loads the coefficients for you when you plug it into our 1524 Handheld Thermometer.

Specifications: Secondary PRT with Calibration Options - 5608 and 5609

Specifications
Temperature range
 		5608: –200 °C to 500 °C
5609: –200 °C to 670 °C
Nominal resistance at 0.01 °C100 Ω ± 0.5 Ω
Temperature coefficient0.0039250 Ω/Ω/°C
Relative Accuracy[1]
 
 
 		± 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 repeatability[2]
 		± 0.007 °C at 0.010 °C
± 0.013 °C at max temp
Drift[3]
 		± 0.01 °C at 0.010 °C
± 0.02 °C at max temp
Hysteresis± 0.01 °C maximum
Sensor length30 mm ± 5 mm (1.2 in ± 0.2 in)
Sensor location3 mm ± 1 mm from tip (0.1 in ± 0.1 in)
Sheath materialInconel™ 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 range[4]–50 ºC to 200 °C
 
Transition junction dimensions71 mm x 12.5 mm (2.8 in x 0.49 in)
Minimum immersion length[5]
(<5 mK error)		5608: 80 mm (3.1 in)
5609: 100 mm (3.9 in)
Maximum immersion length305 mm (12 in)
Response time[5]
 		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 typePTFE 24 AWG
Lead-wire length1.8 m (6 ft)
Lead-wire temperature range–50 °C to 250 °C
Calibration
 
 
 
[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, transition junction should not be too hot to touch.

[5] Per ASTM E 644
Calibration Uncertainty for  NVLAP-accredited† calibration
TemperatureExpanded Uncertainty (k=2)
–197 °C0.025 °C
–80 °C0.025 °C
–38 °C0.025 °C
0.01 °C0.025 °C
156 °C0.030 °C
231 °C0.030 °C
419 °C0.035 °C
660 °C0.050 °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

Models: Secondary PRT with Calibration Options - 5608 and 5609

5608, 5609 Secondary Reference PRTs

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2601

Probe Carrying Case


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Plastic (for probes up to 228 mm [9 in] in length)

1930-4-R

System Calibration by Comparison for 5608 and 5609 PRTs, -200 °C to 500 °C, NVLAP Accredited (probe and thermometer readout combined as a system)


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1930-7-4

System Calibration by Comparison for 5609 PRTs, -200 °C to 660 °C, NVLAP Accredited (probe and thermometer readout combined as a system)


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1930

Precision Digital Thermometer System Calibration by Comparison, NVLAP-accredited, lab code 200348-0


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5608-9-X
Secondary Reference PRT, 9 in x 1/8 in, –200 to 500 °C, lead wire (cable) 6 ft

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X = termination. Specify “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), or “S" (spade lugs).
5608-12-X
Secondary Reference PRT, 12 in x 1/8 in, –200 to 500 °C,  lead wire (cable) 6 ft

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X = termination. Specify “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), or “S" (spade lugs).
5609-12-X
Secondary Reference PRT, 12 in x 1/4 in, –200 to 670 °C,  lead wire (cable) 6 ft

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X = termination. Specify “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), or “S" (spade lugs).
5609-20-X
Secondary Reference PRT, 20 in x 1/4 in, –200 to 670 °C, lead wire (cable) 6 ft

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X = termination. Specify “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), or “S" (spade lugs).
5609-300-X
Secondary Reference PRT, 300 mm x 6 mm, –200 to 670 °C, lead wire (cable) 6 ft

Find a distributor
X = termination. Specify “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), or “S" (spade lugs).
5609-400-X
Secondary Reference PRT, 400 mm x 6 mm, –200 to 670 °C, lead wire (cable) 6 ft

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X = termination. Specify “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), or “S" (spade lugs).
5609-500-X
Secondary Reference PRT, 500 mm x 6 mm, –200 to 670 °C, lead wire (cable) 6 ft

Find a distributor
X = termination. Specify “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), or “S" (spade lugs).
5609-9BND (5609-9BND-X)
Secondary Reference PRT, 15 in x 1/4 in, 9 in bend, –200 °C to 670 °C, lead wire (cable) 6 ft

Find a distributor
X = termination. Specify “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), or “S" (spade lugs).
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Rated 2 out of 5 by from less information about accuracy No information about the accuracy of SPRT 5608 and 5609. Nobody can make decision to purchase this item or not.
Date published: 2021-12-17
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