5626/5628 Secondary SPRT, PRT, Temperature Sensors

5626 Secondary SPRT, PRT, Temperature Sensors
5628 Secondary SPRT, PRT, Temperature Sensors
5626 Secondary SPRT, PRT, Temperature Sensors
5628 Secondary SPRT, PRT, Temperature Sensors
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High-temperature secondary standards

  • Range to 661°C
  • Meets all ITS-90 requirements for resistance ratios
  • Rtp drift < 20 mK after 500 hours at 661°C
  • Calibrated accuracy of ± 0.006 °C at 0 °C

Fluke Calibration's high-temp secondary standards fill the gap between affordable, but temperature-limited secondary PRTs (platinum resistance thermometers) and more expensive, highly accurate SPRTs (standard platinum resistance thermometers).

If you’re using block calibrators, furnaces, or temperature points above normal PRT (platinum resistance thermometer) temperatures (420 °C), then these two PRTs are for you. The 5626 is nominally 100W and the 5628 is nominally 25.5W. Both instruments have a temperature range of –200 °C to 661 °C. They make great working or check standards for calibration work up to the aluminum point.

Using a regular PRT at temperatures above 500 °C exposes the platinum to contamination. If the PRT is used as a reference or calibration standard, contamination is a major problem. SPRTs (standard platinum resistance thermometers), which are more expensive and delicate, can handle the higher temperatures, but with greater risk to the instrument due to shock, contamination, or mishandling. The 5626 and 5628 are designed to reduce the contamination risk through the use of internal protection while not impairing performance.

In addition to the right measurement performance and durability, a PRT for secondary applications should be priced affordably. Fluke Calibration’s new PRTs are inexpensive and come with an accredited calibration. The calibration comes complete with ITS-90 constants and a resistance-versus-temperature table.

Check the temperature range, check the stability, check the price! Who else gives you this much quality, performance, and value for your money? No one!

Specifications 

Temperature Range 

–200 °C to 661 °C 

Handle Temp. 

0 °C to 80 °C 

RTPW 

5626: 100 W (± 1 W)
5628: 25.5 W (± 0.5 W) 

W(Ga) 

³ 1.11807 

Calibrated Accuracy† (k=2) 

± 0.006 °C at –200 °C
± 0.006 °C at 0 °C
± 0.015 °C at 420 °C
± 0.022 °C at 661 °C 

Stability 

5626: ± 0.003 °C
5628: ± 0.002 °C 

Long-Term Drift (k-2) 

5626:  < 0.006 °C/100 hours at 661 °C
5628: < 0.004 °C/100 hours at 661 °C 

Immersion 

At least 12.7 cm (5 in) recommended 

Sheath 

Inconel™ 600 

Lead Wires 

4-wire Super-Flex PVC, 22 AGW 

Termination 

Gold-plated spade lugs, or specify 

Size 

6.35 mm dia. x 305 mm,  381 mm,  or 508 mm (0.25 x 12, 15, or 20 in) standard, custom lengths available 

Calibration 

Accredited calibrations from Fluke Calibration

†Includes calibration and 100 hr drift
Model Name Description
5626-12-X

Secondary Standard PRT (0.25 in dia x 12 in), 100 Ω, –200 °C to 661 °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).X = termination.

5626-15-X

Secondary Standard PRT (0.25 in dia x 15 in), 100 Ω, –200 °C to 661 °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).X = termination.

5626-20-X

High-temp PRT, 100W, 508 mm (20 in) Includes case

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)
5628-12-X

Secondary Standard PRT (0.25 in dia x 12 in), 25 Ω, –200 °C to 661 °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).X = termination.

5628-15-X

Secondary Standard PRT (0.25 in dia x 15 in), 25 Ω, –200 °C to 661 °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).X = termination.

5628-20-X

High-temp PRT, 25.5W, 508 mm (20 in) Includes case

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)

Accessories common to all models:

Accessory Description
2609

Spare Case (for 635 mm [25 in] long TC)
Product Manuals
application/pdf icon5626/5628 Platinum Resistance Thermometer User’s Guide (English) (251.71 KB)
Application Notes
application/pdf iconCalculating Calibration Uncertainties in an Automated Temperature Calibration System
application/pdf iconEstablishment of a secondary temperature calibration laboratory
application/pdf iconHow to Calibrate an RTD or Platinum Resistance Thermometer (PRT) (English) (722.02 KB)
application/pdf iconKalibrieren eines RTD oder Platin-Widerstandsthermometers (PRT) (German) (854.65 KB)
application/pdf iconComment étalonner unde sonde RTD ou sonde à résistance de platine (PRT) (French) (855.72 KB)
application/pdf iconCómo calibrar una RTD o un sensor de temperatura (Spanish) (838.87 KB)
application/pdf iconTemperature Calibration Equipment: A Technician's Guide
application/pdf iconTemperature measurement and calibration: What every instrument technician should know (1.65 MB)
application/pdf icon
application/pdf iconDoes Immersion Depth Really Matter? Application Note
Papers / Articles
application/pdf iconA High-Quality Platinum Resistance Thermometer to 661°C
application/pdf iconAn Investigation of Long-Term Stability of a Precision Platinum Resistance Thermometer up to 660°C
application/pdf iconCalibrating Industrial Temperature Sensors
application/pdf iconFixed Points for Secondary Level and Industrial Calibration
application/pdf iconFixed Points for Secondary Level Calibrations
I Just Got My Probe Recalibrated, Now What?
application/pdf iconImproving the Stability of Standard Platinum Resistance Thermometers (207.37 KB)
application/pdf iconMethods for Evaluating the Condition of Platinum Resistance Thermometers
Platinum Resistance Thermometers (PRT)
application/pdf iconProper Platinum Resistance Thermometer Calibration Uncertainty Analysis
application/pdf iconUsing a Mini Triple Point of Water System to Improve Reliability in a Temperature Calibration Laboratory
Why did my temperature sensor fail calibration?
Recorded Web Seminars
Overcoming Drift: A Complete Guide to Maintaining Your PRTs

 

 

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