When buying a PRT or RTD temperature probe, performance isn’t the only criterion you need to look at. The real issues are price-to-accuracy and price-to-durability ratios.
5627A probes have a temperature range up to 420°C and accuracy as good as +/- 0.025°C. They come in three different lengths. Each precision thermometer is shipped with its ITS-90 coefficients and a calibration table in 1°C increments.
One of the best features of this sensor is that it conforms to the standard 385 curve, letting you use your DIN/IEC RTD meters fully. Why use a precision thermometer or RTD temperature probe that’s less accurate than your meter?
The 5627A is manufactured using a coil suspension element design for increased shock and vibration resistance. It has a mineral-insulated sheath with a minimum bend radius of 19 mm (3/4-inch) for flexibility and durability. (Bend, if any, should be specified at time of order.)
Six- and nine-inch 5627A precision thermometers are calibrated at –196°C, –38°C, 0°C, 200°C, and 300°C. For 12 in versions of these precision thermometers, the point at 300°C is replaced by a calibration point at 420°C.
Each probe is individually calibrated and includes a NVLAP-accredited report of calibration from the manufacturer.
This RTD temperature probe is an excellent value for a precision thermometer. It has the price-to-accuracy and price-to-durability ratios you should demand in all of the precision thermometers you buy!
• Vibration and shock resistant
• NVLAP-accredited calibration included
|Resistance||Nominal 100 Ω|
|Temperature Coefficient||0.00385 Ω/Ω/°C nominal|
|Temperature Range||−200°C to 420°C (5627A-6 and 5627A-9 to 300°C; transition and cable temperature: 0°C to 150°C)|
|Drift Rate (k = 2)||+/- 0.04°C at 0°C after 100 hrs at 420°C|
|Sheath Material||316 Stainless Steel|
|Leads||PTFE-insulated, nickel-plated stranded copper, 22 AWG|
|Termination||Specify. See Ordering Information.|
|Time Constant||Four seconds maximum for 63.2% response to step change in water moving at 3 fps.|
|Bending Radius||Sheath may be ordered with a bend on a minimum radius of 19 mm (3/4 in) except for 50 mm (2 in) area of sheath near tip. (Fluke lab requires 20 cm [8 in] of unbent sheath to re-calibrate.)|
|Calibration|| Includes manufacturer's NVLAP-accredited (lab code 200706-0) calibration and table with R vs. T values in 1°C increments from -196°C - 500°C (to 300°C for 5627A-6 and 5627A-9).
ITS-90 coefficients included.
|Immersion||At least 100 mm (4 in) recommended|
|Calibrated Accuracy† (k=2)||+/- 0.026°C at -196°C
+/- 0.046°C at 0°C
+/- 0.077°C at 200°C
+/- 0.124°C at 420°C
|Size||5627A-12: 305 mm x 6.35 mm (12 in x 1/4 in)
5627A-9: 229 mm x 4.7 mm (9 in x 3/16 in)
5627A-6: 152 mm x 4.7 mm (6 in x 3/16 in)
|†Includes calibration uncertainty and 100 hr drift.|