Install Electrical Grounds; Field Wiring Ground; Ground The Electronics Case - Emerson Rosemount 1195 Installation And Operation Manual

Figure 3-4.
Field Wiring Connections.
(see step 7.b)
(see step 7.b)

Install Electrical Grounds

1100
PREVIOUS TERMINAL BLOCK
1100
IMPROVED TERMINAL BLOCK
Install field wiring ground (optional), and ground the electronics
case (required).

Field Wiring Ground

1. Field wiring may be grounded at any one point on the signal loop,
or it may be left ungrounded. The negative terminal of the power
supply is a recommended grounding point.

Ground the Electronics Case

2. The electronics case should always be grounded in accordance with
national and local electrical codes. The most effective electronics
case grounding method is a direct connection to the earth ground
with minimal impedance. Methods for grounding the electronics
case include:
Internal Ground Connection: Inside the FIELD TERMINALS
side of the electronics housing is the Internal Ground Connection
screw. This screw is identified by a ground symbol:
> R > 250
ÃW ÃW
L
Signal loop may be grounded at
any point or left ungrounded
> R > 250
ÃW ÃW
L
Signal loop may be grounded at
any point or left ungrounded
User-Provided
Power Supply
User-Provided
Power Supply
.
3-7