General Considerations - Emerson Rosemount 2151N Reference Manual

Reference Manual
00809-0000-4851 Rev AD
December 2023
GENERAL
CONSIDERATIONS
Maintenance & Troubleshooting
Process leaks could result in death or serious injury.
Install and tighten all four flange bolts before applying
•
pressure.
Do not attempt to loosen or remove flange bolts while
•
the transmitter is in service.
Residual process fluid may remain after disassembly of
process flanges. If this fluid is potentially contaminated, take
appropriate safety measures.
Replacement equipment or spare parts not approved by
Rosemount Nuclear for use could reduce the pressure
retaining capabilities of the transmitter and may render the
instrument dangerous.
Use only components supplied with the 2151N
•
transmitter or designated by Rosemount Nuclear as
spare parts for the 2151N.
NOTE
Maintenance of traceability of any replacement parts is the
responsibility of the user.
The Rosemount 2151N transmitter has no moving parts and
require a minimum of scheduled maintenance. Calibration
procedures for range adjustments are outlined in Section 3:
Calibration. A calibration check should be conducted after
inadvertent exposure to overpressure, unless your plant
considers this factor separately in the plant error analysis.
NOTE
Transmitters are factory calibrated at ambient temperature
and pressure to the customer's specified range. If calibration
is not specified, transmitters are calibrated 0 to Upper Range
Limit (URL).
Test terminals are available for in-process checks. For further
checks, the transmitter can be divided into two active physical
components: the sensor module and the electronics assembly.
An exploded view drawing of the transmitter is provided in
Figure 5-1. In the following procedures, numbers in
parentheses refer to item numbers in the exploded view.
Rosemount 2151N
WARNING
WARNING
WARNING
48