SAB Kabel

Pt100 Table - Basic Values of Mineral Insulated Resistance Thermometers

Accuracy classes acc. to DIN EN 60751:2009-5

class                        validity range °Climit deviation* °C
 leaded resistorfilm resistor 
AA -50 up to +250   0 up to +150± (0,1 + 0,0017 [t])
A-100 up to +450-30 up to +300± (0,15 + 0,002 [t])
B-196 up to +600-50 up to +500± (0,3 + 0,005 [t])
C-196 up to +600-50 up to +600± (0,6 + 0,01 [t])
* [t] = value of temperature in °C without considering the sign.

For resistance thermometers that belong to the above context, the temperature coefficient a is defined as:α = (R100 - R0) : (100 x R0) = and has the numerical value 0,003 85°C-1 with: R100 is the resistance at 100°C and R0 is the resistance at 0°C. (for calculation purpose the exact value o0,003 850 55°C-1).

Limit deviations for PT 100 thermometers

abbreviation of RTD Pt 100 DIN EN 60751

RTD material platinum

application range -200 up to + 850 °C (class B)
ITS 90 resistance and permitted deviation
measuring temperaturebasic value                   allowed deviation
 class Aclass B
°CΩΩ°CΩ°C
-20018,52 ±0,24 ±0,55 ±0,56 ±1,30
-10060,26 ±0,14 ±0,35 ±0,32 ±0,80
0100,00  ±0,06±0,15±0,12±0,30
100138,51    ±0,13±0,35±0,30±0,80
200175,86 ±0,20 ±0,55 ±0,48 ±1,30
300212,05 ±0,27 ±0,75 ±0,64 ±1,80
400247,09 ±0,33 ±0,95 ±0,79 ±2,30
500280,98 ±0,38 ±1,15 ±0,93±2,80
600313,71 ±0,43 ±1,35 ±1,06 ±3,30
650329,64 ±0,46 ±1,45 ±1,13 ±3,60
700345,28--±1,17±3,80
800 375,70 --±1,28±4,30
850390,48--±1,34±4,60

 

for the term “basic values” see DIN 16160 part 5

Resistance thermometers with different accuracy classes and validity ranges as for example acc. to DIN EN 60751: 2009-5 (class AA) are available on request.

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