Emerson Rosemount 2051 Reference Manual page 29

Reference Manual
00809-0100-4101
2.6.3 Transient protection terminal block
The transmitter will withstand electrical transients of the energy level usually encountered
in static discharges or induced switching transients. However, high-energy transients, such
as those induced in wiring from nearby lightning strikes, can damage the transmitter.
The transient protection terminal block can be ordered as an installed option (Option
Code T1 in the transmitter model number) or as a spare part to retrofit existing 2051
transmitters in the field. See for spare part numbers. The lightning bolt symbol shown in
Figure 2-18
Figure 2-18: 4-20 mA HART wiring with transient protection
A. Power supply
Figure 2-19: 1-5 VDC low power wiring with transient protection
A. Voltmeter
B. Power supply
Reference Manual
and Figure 2-18 identifies the transient protection terminal block.
Installation
March 2024
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