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HR562612 Probe,100 Ohm PRT,12",661¡ÆC

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This new high-temp secondary standards fill the gap between affordable but temperature-limited secondary PRTs and more expensive, highly accurate SPRTs. If you¡¯re using block calibrators, furnaces, or temperature points above normal secondary RTD temperatures (420¡ÆC), then these two PRTs are for you. The HR5626 is nominally 100¥Ø and the HR5628 is nominally 25.5¥Ø. Both instruments have a temperature range of –200¡ÆC to 660¡ÆC. They make great working or check standards for calibration work up to the aluminum point.

Using a regular PRT at temperatures above 500¡ÆC exposes the platinum to contamination. If the PRT is used as a reference or calibration standard, contamination is a major problem. SPRTs, 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 HR5626 and HR5628 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, these PRTs are inexpensive and come with a calibration included. The calibration comes complete with constants and a resistance vs. temperature table.
 
Features
  • Secondary Standard PRTs: Models HR5626 and HR5628
  • Range to 660¡ÆC
  • Meets all ITS-90 requirements for resistance ratios
  • RTPW drift < 20mK after 500 hours at 660¡ÆC
 
SPECIFICATIONS
Temperature Range –200¡ÆC to 661¡ÆC
Handle Temp. 0¡ÆC to 80¡ÆC
RTPW 5626: 100¥Ø (¡¾1¥Ø)
5628: 25.5¥Ø (¡¾0.5¥Ø)
W(Ga) ¡Ã 1.11807
Calibration Uncertainty ¡¾0.015¡ÆC at 661¡ÆC
Stability 5626: ¡¾0.003¡ÆC
5628: ¡¾0.002¡ÆC
Long-Term Drift

5626: ¡Â 0.03¡ÆC/500 hours at 661¡ÆC
5628: ¡Â 0.02¡ÆC/500 hours at 661¡ÆC

Immersion At least 5" recommended
Sheath Inconel¢â 600
Lead Wires 4-wire Super-Flex PVC, 22 AGW
Termination Gold-plated spade lugs
Size 0.25" dia. x 12" or 15" standard, custom lengths available

CAT NO. MODEL DEscRIPTION AVAIL PRICE 
HR562612   5626-12-X   PROBE, 100 Ohm PRT, 12", 661¡ÆC   Yes   2,882,520 
X = termination. Specify ¡°B¡± = bare wire, ¡°S¡± = Gold Spade Lugs, ¡°D¡± = 5-pin DIN for Tweener Thermometer, ¡°I¡± Info-Con connector for HR1700 & HR1522 Handheld Thermometer. 
HR562615   5626-15-X   PROBE, 100 Ohm PRT, 15", 661¡ÆC   Yes   2,882,520
X = termination. Specify ¡°B¡± = bare wire, ¡°S¡± = Gold Spade Lugs, ¡°D¡± = 5-pin DIN for Tweener Thermometer, ¡°I¡± Info-Con connector for HR1700 & HR1522 Handheld Thermometer. 
HR562812   5628-12-X   PROBE, 25.5 Ohm PRT, 12", 661¡ÆC   Yes   2,882,520 
X = termination. Specify ¡°B¡± = bare wire, ¡°S¡± = Gold Spade Lugs, ¡°D¡± = 5-pin DIN for Tweener Thermometer, ¡°I¡± Info-Con connector for HR1700 & HR1522 Handheld Thermometer. 
HR562815   5628-15-X   PROBE, 25.5 Ohm PRT, 15", 661¡ÆC   Yes   2,882,520
X = termination. Specify ¡°B¡± = bare wire, ¡°S¡± = Gold Spade Lugs, ¡°D¡± = 5-pin DIN for Tweener Thermometer, ¡°I¡± Info-Con connector for HR1700 & HR1522 Handheld Thermometer. 
HR2601   2601   OPTIONAL Spare Carry Case 12" PRT FOR Secondary Standard PRT Temperature Reference Probes   Yes   91,800

 

HR2602   2602   OPTIONAL Spare Carry Case 15" PRT FOR Secondary Standard PRT Temperature Reference Probes   Yes   174,420