20 12,490 55 2986 90 917.7
25 10,000 60 2488 95 788.5
30 8057 65 2083 100 680
Maximum tolerance +/- 4.7%
An example for the approximation of the target resistance for temperatures not specified
in the table is shown below.
Example: Ambient temperature = T
amb
= 23°C
R
diff
= (R
low
- R
high
) / 5 = (12,490 ohm - 10,000 ohm) / 5 = 498 ohm
R
target
= R
high
+ R
diff
*(T
high
- T
amb
) = 10,000 ohm + 498 ohm * (25-23) = 10,996 ohm
The individual symbols stand for the following variables:
- T
amb
= ambient temperature of the temperature sensor in °C
- R
low
= resistance in ohm according to the table for the next temperature down from
the ambient temperature
- R
high
= resistance in ohm according to the table for the next temperature up from the
ambient temperature
- T
high
= temperature in °C for resistance R
high
- R
diff
= difference per °C in ohm between R
low
and R
high
- R
target
= target resistance for the specified ambient temperature in °C
14
To Next Page
Loading...
