| RTD Tolerances, Classes and Comparisons |
| Platinum RTD Tolerance Values |
| Temperature ºC |
Resistance Value |
Tolerance DIN-IEC-761 |
Industrial Tolerance Class C |
||
|---|---|---|---|---|---|
| Class
A ºC(  ) |
Class
B ºC( ) |
||||
| -200 -100 0 100 200 |
18.49 60.25 100.00 138.50 175.84 |
±0.55-(±0.24) ±0.35-(±0.14) ±0.15-(±0.06) ±0.35-(±0.13) ±0.55-(±0.20) |
±1.3-(±0.56) ±0.8-(±0.32) ±0.3-(±0.12) ±0.8-(±0.30) ±1.3-(±0.48) |
±2.27 ±1.77 ±1.27 ±1.77 ±2.27 |
(±1.15) (±0.71) (±0.50) (±0.67) (±0.83) |
| 300 400 500 600 650 |
212.02 247.04 280.90 313.59 329.51 |
±0.75-(±0.27) ±0.95-(±0.33) ±1.15-(±0.38) ±1.35-(±0.43) ±1.45-(±0.46) |
±1.8-(±0.64) ±2.3-(±0.79) ±2.8-(±0.93) ±3.3-(±1.06) ±3.6-(±1.13) |
±2.77 ±3.27 ±3.77 ±4.27 ±4.52 |
(±0.98) (±1.10) (±1.22) (±1.32) (±1.36) |
| RTD Tolerance Class Definitions | |||
| DIN | class A: ±(0.15 + 0.002 |t|ºC |  |
Where t is the actual temperature, in ºC, of the platinum elements. |
| DIN | class B: ±(0.30 + 0.005 |t|ºC | ||
| DIN | class C: ±(1.27 + 0.005 |t|ºC | ||
| RTD Resistance Wire Comparisons |
| Element Metal |
Temperature Range | Benefits | Base Resistance | TCR
( //ºC) |
|---|---|---|---|---|
|
Platinum
|
-436
to 1562ºF
(-260 to 850ºC) |
Best
stability,
Good linearity |
100
at 0ºC |
0.00385
(DIN-IEC-761),
0.003916 (JIS 1604-1981) |
|
Copper
|
-148
to 500ºF
(-100 to 260ºC) |
Best
linearity
|
10
at 25ºC |
0.00427
|
|
Nickel
|
-148
to 500ºF
(-100 to 260ºC) |
Low
cost,
High Sensitivity |
120
at 0º C |
0.00672
|
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Design & Maintenance by WEBench Design
Last modified: May 02, 2000
Design & Maintenance by WEBench Design
Last modified: May 02, 2000
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