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April 2019
Note
The use of a pin or a ferrule wire terminal is not recommended as the
connection may be more susceptible to loosening over time or under
vibration.
6. Reinstall the housing cover and tighten so the cover is fully seated
with metal to metal contact between the housing and cover in order
to meet explosion-proof requirements.
Note
Installation of the transient protection terminal block does not
provide transient protection unless the transmitter housing is
properly grounded.
Example
Figure 5-1: Transmitter Wiring for RS-485 Bus
A. RS- 485 (A)
B. RS-485 (B)
C. RS-485 bus, twisted pair required
D. Bus Termination: AC Termination on Rosemount 4088 (see
switches) or 120 Ω resistor
E. User-Provided Power Supply
5.1
Grounding
Signal wire grounding
Do not run signal wiring in conduit or open trays with power wiring, or near
heavy electrical equipment. If shielded wiring is used, ground the shield of
the signal wiring at any one point on the signal loop. Device must be
properly grounded or earthed according to local electric codes.
Quick Start Guide
C
D
Quick Start Guide
B
D
A
E
Set the
15
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