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Model series 257

Thermocouple with exchangeable sheathed measuring insert and protective tube for welding in

Protection classification
IP 54 according DIN 60529
on inquiry

Application temperature
up to +800°C

Number of Thermo junction
1 thermocouple
2 thermocouples

Extension tube length L2
on inquiry
130 mm

Construction
Basic implementation
Ex-implementation (intrinsically safe)

Connection head
Form B according DIN 43 729
Form BUZ for explosion-proof design according DIN 43 729
on inquiry

Protective tube material
1.0460 (C22.8)
1.4571
on inquiry

Protective tube Form 4 for welding in according DIN 43 772 Form; L1; L3; ød1; ød2; measuring insert-ø; thread
D1: 140; 65; 24; 12,5; 6; M18x1,5
D2: 200; 125; 24; 12,5; 6; M18x1,5
D4: 200; 65; 24; 12,5; 6; M18x1,5
D4S*: 140; 65; 18; 9; 3; M14x1,5
D5: 260; 125; 24; 12,5; 6; M18x1,5
on inquiry