
Fluke 5608 Secondary PRT with Calibration Options, 100 OHM (3/16 X 38 INCH), 6 FT Cable
(item no. 4777319, 4777328, 4777337, 4777343, 4777355, 4777362, 4777370, 4777381, 4777396, 4777409) Product overview: Secondary PRT with Calibration Options - 5608 and 5609 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 (6.35 mm) diameter sheath in lengths of 12 inches, 15 inches, and 20 inches; or with a 6 mm diameter in lengths of 300 mm, 400 mm, or 500 mm. When looking for improved response time and reduced stem effect in shallow immersion, look for small diameter probes, because the measurement error called stem effect is caused by the diameter of the stem rather than the length of the stem. Both of these probes have Inconelâ„¢ 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 counterpa