Configure process measurement
Temperature Damping
affects petroleum measurement process variables only if the transmitter is configured
to use temperature data from the sensor. If an external temperature value is used for petroleum
measurement,
Temperature Damping
does not affect petroleum measurement process variables.
Temperature Damping
affects concentration measurement process variables only if the transmitter is
configured to use temperature data from the sensor. If an external temperature value is used for
concentration measurement,
Temperature Damping
does not affect concentration measurement process
variables.
5.8
Configure pressure compensation
Display
Not available
ProLink II
ProLink→Configuration→Pressure→Pressure Compensation
Field Communicator
Configure→Manual Setup→Measurements→External Compensation
Pressure compensation adjusts process measurement to compensate for the pressure effect on the
sensor’s flow tubes. Pressure effect is defined as the change in the sensor’s sensitivity to flow and
density associated with the difference between calibration pressure and process pressure.
Tip
Not all sensors or applications require pressure compensation. If you are uncertain about implementing
pressure compensation, contact
.
Procedure
1.
Enable pressure compensation.
2.
Enter
Flow Factor
for your sensor.
Flow Factor
is the percent change in the flow rate per PSI.
Flow Factor
for your sensor is provided on
the sensor product data sheet. When entering the value, reverse the sign.
Example:
If the flow factor is 0.000004 % per PSI, enter
−0.000004
% per PSI.
3.
Enter
Density Factor
for your sensor.
Density Factor
is the change in fluid density, in g/cm
3
/PSI.
Density Factor
for your sensor is provided on
the sensor product data sheet. When entering the value, reverse the sign.
Example:
If the density factor is 0.000006 g/cm
3
/PSI, enter
−0.000006
g/cm3/PSI.
4.
Enter
Calibration Pressure
for your sensor.
90
Micro Motion 9739 MVD Transmitters