Reference Manual
00809-0100-4360, Rev BA
August 2008
Rosemount 1151
4-6
Figure 4-2. Sensor Trim
NOTE
The Rosemount 1151 Smart Pressure Transmitter allows approximately
a 5.0% URL deviation from the characterized curve established at
the factory.
NOTE
A sensor trim requires a pressure source at least three times more accurate
than the transmitter. For best accuracy, make sure the applied pressure is
equal to or slightly less than the desired 4 mA setpoint, or equal to or slightly
greater than the 20 mA setpoint.
NOTE
4–20 mA wiring shown.
Dead Weight Tester
Calibration Standard for
Sensor Trim Only
250 Ω
Minimum
Loop
Resistance
24 V dc
Power Supply
Rosemount
1151
Smart
HART-based
Communicator
Precision
Meter
Figure 4-3. Digital Trim
Connection Drawing
(4–20 mA Transmitters).
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