The WRNK-191 family offers thin sheathed K, E or J thermocouples with insulated or grounded measuring junctions. Compensation leads use KAPTON-type or fiberglass shielding. The stamped stainless cold-end version measures objects, liquids and gases as well as hot runner systems. The molded high-temperature resin version is intended specifically for hot runner measurement.
| Model reference | Construction | Probe diameters | Cold-end size | Maximum connection temperature | Tensile load | Dielectric withstand | Leakage current |
|---|---|---|---|---|---|---|---|
| WRNK-191 | Stamped stainless cold end | 1mm, 1.5mm, 1.6mm, 2mm or 3mm | 6mm diameter ×30mm | 200°C | Not specified | 400V | <0.5mA |
| Molded resin cold end | 1mm, 1.5mm or 1.6mm | 5mm diameter ×25mm | 300°C | 10kgf |
The connection temperature limits apply to the cold-end joint and are separate from the sensing ranges.
| Model reference | Cold-end version | Elements | Sheath material | Diameter | Range | Listed tolerance |
|---|---|---|---|---|---|---|
| WRNK-191 | Stamped stainless or resin | K, E or J | 06Cr18Ni11Ti | 1mm | 0-400°C | ±2.5°C or ±0.75%t |
| 1.5mm or 1.6mm | 0-600°C | |||||
| Stamped stainless | 2mm | |||||
| 3mm | 0-800°C | |||||
| Stamped stainless or resin | K only | GH3030 | 1mm | 0-500°C | ||
| 1.5mm or 1.6mm | 0-800°C | |||||
| Stamped stainless | 2mm or 3mm |
GH3030 sheath construction is limited to K-type elements, as specified in the 191 family material note.
| Model reference | Construction | Insertion | Connecting lead length | Compensation lead | Termination choices |
|---|---|---|---|---|---|
| WRNK-191 | Stamped stainless cold end | 200-3000mm | 500-3000mm | Stranded 0.5mm² or 0.2mm² | Plug-in, crimped or bare wire |
| Molded resin cold end | Plug-in |
Other dimensions are available to suit the installation.
