Specification - thermocouple type L

Electrical measuring range used

±75 mV

Measuring range, technically available

0°C ≈ 0 mV … +900°C ≈ 52.430 mV

Measuring range, end value (full scale value)

+900°C

Measuring range, recommended

0°C … +900°C

PDO LSB

0.1/0.01°C/digit, depending on PDO setting

Notice Internally, the full scale value is calculated with 16 bits, so depending on the thermocouple set, there may be value jumps >0.01°C at “Resolution 0.01°C”; type L: approx. 0.03°C.

Uncertainty in the recommended measuring range, with averaging

@ 23°C ambient temperature

±2.3 K ≈ ±0.26%_FSV

@ 55°C ambient temperature

±2.8 K ≈ ±0.31%_FSV

Temperature coefficient
(change in the measured value when the ambient temperature of the terminals changes)

Since the value is highly dependent on the sensor temperature, as can be seen in the specification plot shown below, it must basically be derived from the specification plot. For better approximation, the measurement uncertainty at T_amb= 39°C as the middle point between 23°C and 55°C is also shown informatively in order to illustrate the non-linear curve.