Endress+Hauser Proline Promass A 100 PROFINET Operating Instructions Manual page 139

Proline Promass A 100 PROFINET
Repeatability
Response time
Influence of medium
temperature
Endress+Hauser
Accuracy of outputs
The output accuracy must be factored into the measurement error if analog outputs
are used; but can be ignored for fieldbus outputs (e.g. Modbus RS485, EtherNet/IP).
The outputs have the following base accuracy specifications.
o.r. = of reading; 1 g/cm 3
Base repeatability
Design fundamentals →  140
Mass flow and volume flow (liquids)
±0.05 % o.r.
Mass flow (gases)
±0.25 % o.r.
Density (liquids)
3
±0.00025 g/cm
Temperature
±0.25 °C ± 0.0025 · T °C (±0.45 °F ± 0.0015 · (T–32) °F)
The response time depends on the configuration (damping).
Mass flow
o.f.s. = of full scale value
If there is a difference between the temperature during zero adjustment and the process
temperature, the additional measurement error of the sensors is typically
±0.0002 %o.f.s./°C (±0.0001 % o. f.s./°F).
The influence is reduced when the zero adjustment is performed at process temperature.
Density
If there is a difference between the density calibration temperature and the process
temperature, the measurement error of the sensors is typically
±0.00005 g/cm 3 /°C (±0.000025 g/cm
Wide-range density specification (special density calibration)
If the process temperature is outside the valid range (→  137) the measurement error is
±0.00005 g/cm 3 /°C (±0.000025 g/cm
= 1 kg/l; T = medium temperature
3 /°F). Field density adjustment is possible.
3 /°F)
Technical data
139