1-29k Model
One of the variety of the 1-29 model. It applies to measure temperature of gas-like and air environments. The probe has two sheaths: the inner and outer ones. The outer sheath is made of С530 porous ceramic, the inner one - C799 gas proof ceramic. The measuring sensor is made of wire of 3 mm (types K, N), 0.35 mm (types S, R, B) diameter.
Dual sheath
1. С610 ceramic insulation
2. Ø3.0 / Ø.35 mm wire
3. С799 gas proof ceramic
4. С530 porous ceramic
NOTE! 1-29k models is not high temperature proof along the whole immersion part. That's why only the ceramic part must stay in high temperature zone. Therefore, it's recommended to order the longer immersion part or the remote part to bring out the more fragile part of the probe from thermal impact. Temperature near the industrial head must stay up to 300°С, and near the transition from steel 321 to ceramic - up to 800°С. The industrial head ensures IP54 protection only up to 120°С.
Technical specifications
| Type and Nominal Resistance | Type К, N, S, R, B |
| Accuracy | 1, 2 |
| Junction type of thermocouples | Ungrounded |
| Industrial head | A1 |
| Sheath material | AISI 321 Outer - C530 porous ceramic, Inner - С799 gas proof ceramic |
| Sensor | Wires Ø3 mm (types, K, N), Ø.35 mm (types S, R, B) |
| Process temperature range, °С | 0...1200 (type N), 0...1100 (type K), 0...1400 (type S, R), 600...1400 (type B) |
| Thermal inertia, sec | 120 |
Dimensions
| Length of the immersion part, L, (ceramic part, L1) mm | 320 (250), 400 (250), 500 (320), 600 (400), 800 (400), 1000 (400), 1000 (800), 1250 (800), 1500 (800) |
| Length of the high temperature part, mm | 250, 320, 400, 800 |
| Diameter of the immersion part, mm | Ø26 |
Application Form to order the product