Functional Tests - Emerson Rosemount 3051S Manual

Reference Manual
00809-0100-4804
P sensor
HI
P sensor
LO
The recall factory trim command allows the restoration of the as-shipped factory settings
of the analog output, DP, and the P
useful for recovering from an inadvertent trim or an inaccurate pressure source.
4.3

Functional tests

Fast Keys
The loop test command verifies the output of the ERS System, the integrity of the 4–20 mA
loop, and the operations of any recorders or similar devices installed in the loop.
To perform a loop test:
Procedure
1. Connect a reference meter to the Rosemount ERS System by either connecting the
2. Launch the loop test function using AMS Device Manager or a communication
3. When prompted, select a mA value to have the ERS System output on the 4–20 mA
4. Check the reference meter installed in the test loop to verify and compare the
4.3.1 Find device
Fast Keys
The find device function causes the system to flash a unique pattern of characters
4-1) on the LCD display, making the system easily identifiable in person. The Find Device
function requires a digital display to be installed on the primary transmitter.
Figure 4-1: Find Device Pattern
Procedure
Launch the find device function using AMS Device Manager or a communication device.
The system will continue to display the pattern shown in
function is stopped.
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3, 4, 3, 2
3, 4, 4, 2
3, 5, 5
meter to the test terminals on the terminal block of the ERS primary sensor or
shunting power through the meter at some point in the loop.
device.
loop.
reading to the expected mA output of the ERS System.
• If the values match, the ERS System and the loop are configured and functioning
properly.
• If the values do not match, the reference meter may be attached to the wrong
loop, there may be a fault in the wiring, the ERS System may require an analog
output trim, or the reference meter may be malfunctioning.
1, 7
and P sensor calibrations. This command can be
HI LO
Figure 4-1
Operation and maintenance
March 2024
(Figure
until the Find Device
59