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Reference Manual
00809-0100-4860, Rev BC
Section 4: Operation
January 2013
Operation
Alarm level select
Select the Alarm level of the transmitter. Either Rosemount standard or NAMUR compliant.
Alarm / sat levels
Displays Alarm and Saturation mA output levels.
Note
Alarm and Saturation levels can be found in the specifications section.
Scaled D/A trim
Scaled D/A Trim enables you to calibrate the flowmeter analog output using a different scale
than the standard 4-20 mA output scale. Non-scaled D/A Trimming (described above), is
typically performed using an ammeter where calibration values are entered in units of
milliamperes. Both non-scaled D/A trimming and scaled D/A trimming allow you to trim the
4-20mA output to approximately ±5% of the nominal 4mA end point and ±3% of the nominal
20mA end point. Scaled D/A Trimming allows you to trim the flowmeter using a scale that may
be more convenient based upon your method of measurement.
For example, it may be more convenient for you to make current measurements by direct
voltage readings across the loop resistor. If your loop resistor is 500 Ohms, and you want to
calibrate the meter using voltage measurements made across this resistor, you could rescale
your trim points from 4-20mA to 4-20mA x 500 ohm or 2-10 Vdc. Once your scaled trim points
have been entered as 2 and 10, you can now calibrate your flowmeter by entering voltage
measurements directly from the voltmeter.
Recall factory Trim
Recall Factory Trim enables you to return to the original factory trim values.
Pulse output
Pulse Output enables you to configure the Pulse Output.
Note
The Field Communicator will allow configuration of the pulse features even if the pulse option
(Option P) was not ordered.
Field Comm. 1, 4, 2, 1, 5
Field Comm. 1, 4, 2, 1, 6
Field Comm. 1, 4, 2, 1, 7
Field Comm. 1, 4, 2, 1, 8
Field Comm. 1, 4, 2, 2