HOME > FLUKE-CALIBRATION > PROBES > 5608-5609 fluke-calibration logo

Fluke Calibration 5608 and 5609
Secondary PRT Probe with Calibration Options

  • 5608: –200 °C to 500 °C (80mm minimum immersion)
  • 5609: –200 °C to 670 °C (100mm minimum immersion)
  • ± 0.01 short-term stability
  • Calibration not included, NVLAP-accredited calibration optional, lab code 200348-0
  • Dry-well reference with 90 ° bend
  • The 5608 comes with a one-eighth inch (3.18mm) 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
Fluke Calibration 5608 and 5609 Secondary PRT with Calibration Options!Click for larger image
Fluke HART 5608
and 5609 Shown
Product Information
Datasheet 335 KB PDF
PDF HelpPDF Help
 
If you want a very stable thermometer from –200 °C to 670 °C and are particular about the calibration, then look no further than our 5609 Secondary Reference PRT. Its short-term stability at the triple point of water is only ±10mK and its one-quarter inch (6.23 mm) diameter lets you get accurate measurements in only 100 mm of immersion. The 5608 is also a ±10mK probe at the triple point of water, but its one-eighth inch (3.18 mm) diameter gets you accurate measurements from –200 °C to 500 °C with only 80 mm (3.1 in) of immersion. With multiple sheath length options on both of these probes, and an optional 90 ° bend at nine inches from the tip for dry-well applications, you can find the dimensions that are just right for your specific application.

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 (6.35mm) diameter sheath in lengths of 12 inches, 15 inches, and 20 inches; or with a 6 mm diameter in lengths of 300mm, 400mm, or 500mm.

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.

 
Specifications
Temperature Range 5608: –200 °C to 500 °C
5609: –200 °C to 670 °C
Nominal Resistance at 0.01°C 100 Ω ± 0.5Ω
Temperature Coefficient 0.0039250 Ω/Ω/°C
Accuracy Short-term Repeatability ± 0.01 °C at 0.010 °C
± 0.02 °C at max temp
Drift ± 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 MW at 23 °C, 20 MW at 500 °C
5609: 500 MW at 23 °C, 10 MW at 670 °C
Transition Junction Dimensions 71 mm x 12.5 mm (2.8 in x 0.49 in)
Minimum Immersion Length (<5 mK error) 5608: 80 mm (3.1 in)
5609: 100 mm (3.9 in)
Maximum Immersion Length 305 mm (12 in)
Response Time 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 Teflon,™ 24 AWG
Lead-wire Length 1.8 m (6 ft)
Lead-wire Temperature Range –50 °C to 250 °C
 
Ordering Information
Model Size
Length x Diameter
Type Temp. Range Buy Online Price
5608-9-B
MFR ID: 3057129
9 in x 1/8 in Bare Wire –200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-9-D
MFR ID: 3057134
9 in x 1/8 in 5-pin DIN
for Tweener Thermometers
–200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-9-I
MFR ID: 3057152
9 in x 1/8 in INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 500°C Buy Now Sale $639.00
(Reg. $710.00)
5608-9-L
MFR ID: 3057176
9 in x 1/8 in Miniature Spade Lugs –200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-12-B
MFR ID: 3057043
12 in x 1/8 in Bare Wire –200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-12-D
MFR ID: 3057055
12 in x 1/8 in 5-pin DIN
for Tweener Thermometers
–200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-12-I
MFR ID: 3057070
12 in x 1/8 in INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5608-12-L
MFR ID: 3057096
12 in x 1/8 in Miniature Spade Lugs –200 to 500 °C Buy Now Sale $639.00
(Reg. $710.00)
5609-12-A
MFR ID: 3100973
12 in x 1/4 in Base Model –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-12-B
MFR ID: 3056569
12 in x 1/4 in Bare Wire –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-12-D
MFR ID: 3056578
12 in x 1/4 in 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-12-L
MFR ID: 3056617
12 in x 1/4 in Miniature Spade Lugs –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-15-A
MFR ID: 3100986
15 in x 1/4 in Base Model –200 to 670 °C Buy Now $1,040.00
5609-15-B
MFR ID: 3056642
15 in x 1/4 in Bare Wire –200 to 670 °C Buy Now $1,040.00
5609-15-D
MFR ID: 3056656
15 in x 1/4 in 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now $1,040.00
5609-15-I
MFR ID: 3056674
15 in x 1/4 in INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 670 °C Buy Now $1,040.00
5609-15-L
MFR ID: 3056695
15 in x 1/4 in Miniature Spade Lugs –200 to 670 °C Buy Now $1,040.00
5609-20-A
MFR ID: 3100999
20 in x 1/4 in Base Model –200 to 670 °C Buy Now $1,165.00
5609-20-B
MFR ID: 3056729
20 in x 1/4 in Bare Wire –200 to 670 °C Buy Now $1,165.00
5609-20-D
MFR ID: 3056734
20 in x 1/4 in 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now $1,165.00
5609-20-I
MFR ID: 3056752
20 in x 1/4 in INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 670 °C Buy Now $1,165.00
5609-20-L
MFR ID: 3056776
20 in x 1/4 in Miniature Spade Lugs –200 to 670 °C Buy Now $1,165.00
5609-300-A
MFR ID: 3561562
300 mm x 6 mm INFO-CON for 914X –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-B
MFR ID: 3056803
300 mm x 6 mm Bare Wire –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-D
MFR ID: 3056815
300 mm x 6 mm 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-I
MFR ID: 3056832
300 mm x 6 mm INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-J
MFR ID: 3056844
300 mm x 6 mm Banana plugs –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-L
MFR ID: 3056859
300 mm x 6 mm Mini spade lugs –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-M
MFR ID: 3056867
300 mm x 6 mm Mini banana plugs –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-300-P
MFR ID: 3376803
300 mm x 6 mm INFO-CON for 1523 or 1524 –200 to 670 °C Buy Now Sale $837.00
(Reg. $930.00)
5609-400-A
MFR ID: 3561570
400 mm x 6 mm INFO-CON for 914X –200 to 670 °C Buy Now $1,040.00
5609-400-B
MFR ID: 3056880
400 mm x 6 mm Bare Wire –200 to 670 °C Buy Now $1,040.00
5609-400-D
MFR ID: 3056898
400 mm x 6 mm 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now $1,040.00
5609-400-I
MFR ID: 3056914
400 mm x 6 mm INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 670 °C Buy Now $1,040.00
5609-400-J
MFR ID: 3056923
400 mm x 6 mm Banana plugs –200 to 670 °C Buy Now $1,040.00
5609-400-L
MFR ID: 3056938
400 mm x 6 mm Mini spade lugs –200 to 670 °C Buy Now $1,040.00
5609-400-M
MFR ID: 3056945
400 mm x 6 mm Mini banana plugs –200 to 670 °C Buy Now $1,040.00
5609-400-P
MFR ID: 3376815
400 mm x 6 mm INFO-CON for 1523 or 1524 –200 to 670 °C Buy Now $1,040.00
5609-500-A
MFR ID: 3561581
500 mm x 6 mm INFO-CON for 914X –200 to 670 °C Buy Now $1,165.00
5609-500-B
MFR ID: 3056961
500 mm x 6 mm Bare Wire –200 to 670 °C Buy Now $1,165.00
5609-500-D
MFR ID: 3056977
500 mm x 6 mm 5-pin DIN
for Tweener Thermometers
–200 to 670 °C Buy Now $1,165.00
5609-500-I
MFR ID: 3056992
500 mm x 6 mm INFO-CON
(for 1521 or 1522
Handheld Thermometers)
–200 to 670 °C Buy Now $1,165.00
5609-500-J
MFR ID: 3057004
500 mm x 6 mm Banana plugs –200 to 670 °C Buy Now $1,165.00
5609-500-L
MFR ID: 3057019
500 mm x 6 mm Mini spade lugs –200 to 670 °C Buy Now $1,165.00
5609-500-M
MFR ID: 3057028
500 mm x 6 mm Mini banana plugs –200 to 670 °C Buy Now $1,165.00
5609-500-P
MFR ID: 3376826
500 mm x 6 mm INFO-CON for 1523 or 1524 –200 to 670 °C Buy Now $1,165.00
Obsolete Models
56089S 9 in x 1/8 in Standard Spade Lugs –200 to 500 °C Discontinued
56089I 9 in x 1/8 in INFO-CON
for 1521/1522
–200 to 500 °C Discontinued
560812I 12 in x 1/8 in INFO-CON
for 1521/1522
–200 to 500 °C Discontinued
560812S 12 in x 1/8 in Standard Spade Lugs –200 to 500 °C Discontinued
560912I 12 in x 1/4 in INFO-CON
for 1521/1522
–200 to 670 °C Discontinued
560912S 12 in x 1/4 in Standard Spade Lugs –200 to 670 °C Discontinued
560915I 15 in x 1/4 in INFO-CON
for 1521/1522
–200 to 670 °C Discontinued
560915S 15 in x 1/4 in Standard Spade Lugs –200 to 670 °C Discontinued
560920I 20 in x 1/4 in INFO-CON
for 1521/1522
–200 to 670 °C Discontinued
560920S 20 in x 1/4 in Standard Spade Lugs –200 to 670 °C Discontinued
56099BND 15 in x 1/4 in;
9 in bend
° Bend
for Dry-Well Applications
–200 to 670 °C Discontinued
Optional Accessories
2601
MFR ID: 1650896
Fluke Calibration 2601 Probe Carrying Case (for probes ending in: -9 and -12) Buy Now Sale $126.00
(Reg. $140.00)