SAB Kabel

Response time mineral insulated thermocouples and resistance thermometers

Mineral insulated thermocouples

Insulated hot junctionResponse time in
(form A)
sheath-∅ (mm)
Water
with 0,2 m/s
Air
with 0,2 m/s
 t 0,5 (s)t 0,9 (s)t 0,5 (s)t 0,9 (s)
0,50,060,13 1,80 5,50
1,00,15 0,503,00 10,00
1,50,21 0,60 8,00 25,00
3,0 1,20 2,9023,00 80,00
4,5 2,50 5,90 37,00 120,00
6,04,00 9,60 60,00 200,00
8,0 7,00 17,00 100,00 360,00
Welded hot junctionResponse time
in
(form B)
sheath-∅ (mm)
Water
with 0,2 m/s
Air 
with 0,2 m/s
t 0,5 (s)t 0,9 (s)t 0,5 (s)t 0,9 (s)
0,50,03 0,10 1,80 6,00
1,0 0,06 0,18 3,00 10,00
1,5 0,13 0,40 8,00 25,00
3,0 0,22 0,75  23,00 80,00
4,5 0,45 1,60 33,00  110,00
6,0 0,55 2,60 55,00 185,00
8,0 0,75  4,60 97,00 310,00

 

 

Mineral insulated resistance thermometer

sheath-∅
in mm
Response time
in
Water
with 0,2 m/s
Air 
with 0,2 m/s
t 0,5 (s)t 0,9 (s)t 0,5 (s)t 0,9 (s)
1,63,6 5,5 10,8  26,3
3,0 5,2 9,8 20,0   51,0
6,0 10,4 23,2 46,8   121,0

These indications are only reference values as the response time depends on the applied RTD.

Mineral insulated thermocouples and mineral insulated resistance thermometers can be bent with a radius of five times the outer diameter of the sheath material. Herewith it must be considered that any bending of the measuring tip over a lenght of 60 mm has to be avoided. 

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