| Model | Graduation Mark | Measuring Range(℃) | Specification |  |
| Lxl | ||||
| WRNN-42HL WRNN2-42HL | K | 0-800 | 2150x2000 2650x2500 3150x3000 3650x3500 4150x4000 5150x5000 6150x6000 7150x7000 3150x8000 9150x9000 10150x10000 | |
| WREN-42HL WREN2-42HL | E | 0-600 | ||
| WZPN-42 WZPN2-42 | Pt100 | 0-500 |
Note:
(1) Of abrasion thermocouple and platinum thermal resistance for coal dust storehouse,these protciton tubes that the inserted length exceeds 2m will be divided to make a form of linkage structure,taking 2m as the basic length.
(2) The first section of the protection tube is made of special abrasion proof materials.
(3) Single Pt thermal resistance,double pt thermal resistance,both are three-wire system.
(4) Refer to page 113,Fig 171 for sepecification of fixed bolt of straight protection tube.
