TESTO 6681 Instruction Manual page 78

testo 6610
78
- 2.2 Product description
The measuring uncertainty of the probe includes the sensor and its
electronics as well as the output of the digital measuring signal:
1. Linearity including scatter
2. Hysteresis
3. Reproducibility
4. Production adjustment area
5. Uncertainty of the testing
Systematic error and scattering of the
components (due to manufacturing
tolerances)
Hysteresis indicates the maximum
deviation of the readings that are
obtained when you set the same value for
the parameter, once coming from a
smaller value, once coming from a larger
value (humidity sensors actually have no
hysteresis, but rather very slow
adjustment effects that appear to be
hysteresis when considered only for a
short period.)
Repeatability (scattering of the readings
in the event of the same parameter being
entered successively)
The measuring uncertainty of the
reference instruments of the adjustment
area (including the reference instrument)
in production
Uncertainty of the procedure for
determining points 1 and 2.