These water-resistant temperature probes place sheathed sensing elements inside conventional or solid drilled protective tubes. Fixed-flange and fixed-thread process connections are available, together with single-element, dual-element and spring-loaded constructions. Select the sensor type and sheath separately from the outer protective tube.
| Sensor type | Element | Sheath material | Sheath diameter | Temperature range | Accuracy options |
|---|---|---|---|---|---|
| WRNK Nickel-chromium / nickel-silicon | K | 06Cr18Ni11Ti | 3mm, 4mm, 5mm, 6mm or 8mm | 0-800°C | I: ±1.5°C or ±0.4%t; II: ±2.5°C or ±0.75%t |
| GH3030 | 3mm, 4mm or 5mm | 0-900°C | |||
| 6mm or 8mm | 0-1100°C | ||||
| WREK Nickel-chromium / copper-nickel | E | 06Cr18Ni11Ti | 3mm, 4mm, 5mm, 6mm or 8mm | 0-700°C | |
| WRFK Iron / copper-nickel | J | 3mm | 0-400°C | ||
| 4mm, 5mm, 6mm or 8mm | 0-600°C | ||||
| WRCK Copper / copper-nickel | T | 3mm, 4mm, 5mm, 6mm or 8mm | -200-300°C | I: ±0.5°C or ±0.4%t; II: ±1°C or ±0.75%t | |
| WZPK Platinum RTD | Pt100 | 3mm | -200-250°C or -200-420°C | A: ±(0.15+0.002t); B: ±(0.30+0.005t) | |
| 4mm, 5mm, 6mm or 8mm | -200-420°C or 0-500°C | ||||
| 3YC-52 alloy | 0-650°C | ||||
| WZCK Copper RTD | Cu50 | 06Cr18Ni11Ti | 5mm, 6mm or 8mm | -50-150°C | ±(0.30+0.006t)°C |
In the RTD tolerance formulas, t is the absolute temperature magnitude in °C.
| Configuration | Process connection | Head | Electrical entry |
|---|---|---|---|
| Fixed flange, aluminum head | Choose GB, HB, JB, HGJ, SH, ASME B, ANSI or JIS flange specification | Small water-resistant aluminum head | M20x1.5 |
| Fixed flange, stainless steel head | Small water-resistant stainless steel head | M20x1.5 or M24x1.5 | |
| Fixed thread, stainless steel head | M27x2, M33x2, G3/4, G1, NPT3/4 or NPT1 |
Outer protective tube diameters are 12mm, 16mm or 20mm. Listed tube materials are 06Cr18Ni11Ti, 1Cr25Ni20, Cr25Ti, GH3030, 0R1300, K1230 and 3YC-52. Insertion length is selected for the application. Specify the required flange dimensions and rating together with the flange standard.
