We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
The Fluke 5615-12 (formerly Hart Scientific) is a Platinum Resistance Thermometer (PRT) with an Inconel™ 600 sheath that’s 305 mm (12 in) long and 6.35 mm (0.250 in) in diameter. It is a secondary reference temperature standard designed to bridge the gap between top laboratory standards and industrial or second-tier lab locations. It has accuracy of ± 0.012 °C at 0.01 °C.
The element is constructed of reference-grade platinum wire (99.999 % pure) for outstanding stability. The wire is wound in a coil and placed in a mandrel where it’s uniformly supported in a manner that virtually abolishes hysteresis. The electrical configuration is a four-wire current-potential hookup that eradicates the effects of lead-wire resistance.
These Inconel™-sheathed probes have a fully supported sensing element, making them more enduring than SPRTs. The element is guarded in an ultrahigh-purity ceramic case with a hermetic glass seal to enhance output stability by locking out moisture and contaminants.
This probe comes calibrated with ITS-90 coefficients, making it compatible with many excellent readout devices, including Fluke Calibration’s 1529 Chub-E4, 1560 Black Stack, and 1502A Tweener. It bridges the gap between a 100-ohm industrial RTD and an SPRT.
A printout of sensor resistance is provided in 1 °C increments for each probe. The 5615-12 is calibrated from –196 °C to 420 °C. Each probe comes with its own individual NVLAP-accredited calibration, lab code 200706-0.
| Temperature range | 5615-12 and 5615-9: –200 °C to 420 °C 5615-6: –200 °C to 300 °C | ||||||||||||||||
| Nominal resistance at 0 °C | 100 Ω ± 0.10 Ω | ||||||||||||||||
| Temperature coefficient | 0.0039250 Ω/Ω/°C | ||||||||||||||||
| Accuracy[1] | ± 0.024 °C at –200 °C ± 0.012 °C at 0 °C ± 0.035 °C at 420 °CC | ||||||||||||||||
| Short-term repeatability[2] | ± 0.009 °C at 0.010 °C | ||||||||||||||||
| Drift[3] | ± 0.007 °C at 0.010 °C | ||||||||||||||||
| Sensor length | 28 mm (1.1 in) | ||||||||||||||||
| Sensor location | 6.9 mm ± 3.3 mm from tip (0.27 in ± 0.13 in) | ||||||||||||||||
| Sheath dimensions | 5615-6: 152 mm x 4.76 mm (6.0 in x 0.188 in) 5615-9: 229 mm x 4.76 mm (9.0 in x 0.188 in) 5615-12: 305 mm x 6.35 mm (12.0 in x 0.250 in) | ||||||||||||||||
| Sheath diameter tolerance | ± 0.127 mm (± 0.005 in) | ||||||||||||||||
| Sheath material | Inconel™ 600 | ||||||||||||||||
| Minimum insulation resistance | 1000 MΩ at 23 °C | ||||||||||||||||
| Transition junction temperature range[4] | –50 °C to 200 °C | ||||||||||||||||
| Transition junction dimensions | 71 mm x 13 mm dia (2.8 in x 0.5 in) | ||||||||||||||||
| Maximum immersion length | 5615-6: 102 mm (4 in) 5615-9: 178 mm (7 in) 5615-12: 254 mm (10 in) | ||||||||||||||||
| Response time[5] | 9 seconds typical | ||||||||||||||||
| Self heating (in 0 °C bath) | 50 mW/°C | ||||||||||||||||
| Lead-wire cable type | PTFE insulated with PTFE jacket, 22 AWG | ||||||||||||||||
| Lead-wire length | 183 cm (72 in or 6 ft) | ||||||||||||||||
| Lead-wire temperature range | –50 °C to 200 °C | ||||||||||||||||
| Calibration | NVLAP-accredited calibration included, lab code 200706-0. Please see calibration uncertainty table and its explanation of changeable uncertainties. | ||||||||||||||||
[1] Includes calibration and 100 hr drift (k=2) [2] Three thermal cycles from min to max temp, includes hysteresis, 95 % confidence (k=2) [3] After 100 hrs at max temp, 95 % confidence (k=2) [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 |
| ||||||||||||||||
Write Your Own Review