Endress+Hauser Proline Promass F 100 - Page 103

Proline Promass F 100 Modbus RS485 Technical data
103
The effect is reduced if zero point adjustment is performed at process temperature.
Density
When there is a difference between the density calibration temperature and the process
temperature, the typical measured error of the sensor is
±0.00005 g/cm
3
/°C (±0.000025 g/cm
3
/°F). Field density calibration is possible.
Wide-range density specification (special density calibration)
If the process temperature is outside the valid range (→  100) the measured error is
±0.00005 g/cm
3
/°C (±0.000025 g/cm
3
/°F)
[kg/m ]
3
[°C]
0- 08 80 160 240
[° ]F
- 05 0
100
200
300
0
2
4
6
8
10
2
1
12
14
16
18
320 400 480 560
A0034654
1 Field density calibration, for example at +20 °C (+68 °F)
2 Special density calibration
Temperature
±0.005 · T °C (± 0.005 · (T – 32) °F)
Influence of medium
pressure
The table below shows the effect on accuracy of mass flow due to a difference between
calibration pressure and process pressure.
o.r. = of reading
It is possible to compensate for the effect by:
• Reading in the current pressure measured value via the current input.
• Specifying a fixed value for the pressure in the device parameters.
Operating Instructions .
DN [% o.r./bar] [% o.r./psi]
[mm] [in]
8 3/8 no influence
15 ½ no influence
25 1 no influence
40 1½ –0.003 –0.0002