Table of Contents
Transmitter Functions
October 2016
Figure 2-9. Digital Trim Connection Drawing (4–20 mA Transmitters)
A. Dead weight tester (calibration standard for sensor trim only)
B. HART-based communicator
C. 250 ohm minimum loop resistance
D. 24 Vdc power supply
E. Rosemount 3051N Pressure Transmitter
F. Precision meter
2.12.6
Recall factory trim
The Recall Factory Trim commands allow the restoration of the as-shipped factory settings of the sensor
trim and analog output trim.
2.12.7
Recall factory trim— sensor trim
HART Fast Keys
Resets the transmitter sensor trim to the as-shipped factory settings. The Recall Factory Trim—Sensor Trim
command can be useful for recovering from an inadvertent zero trim of an absolute pressure unit.
2.12.8
Recall factory trim— analog output
HART Fast Keys
Resets the transmitter analog output trim to the as-shipped factory settings. The Recall Factory Trim—
Analog Output Trim command can be useful for recovering from an inadvertent zero trim on an absolute
pressure transmitter.
2.12.9
Analog output trim
The Analog Output Trim commands allow you to adjust the transmitter's current output at the 4 and
20 mA points to match the plant standards. This command adjusts the digital to analog signal
conversion (see
20
1, 2, 3, 4, 1
1, 2, 3, 4, 2
Figure 2-7 on page
17).
Reference Manual
00809-0100-4808, Rev DA
Transmitter Functions
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