Reference Manual
00809-0100-4793, Rev CA
August 2004
Rosemount 8742C
2-4
Figure 2-2. Rosemount 8742C
Transmitter Dimensional
Drawing
WIRING
Correct cable preparation is important for a successful installation. The
conduit connections needed for installation depend on transmitter location. A
conduit run between the flowtube and transmitter is not required if the
transmitter is integrally mounted on the flowtube.
Conduit Ports
and Connections
Both the flowtube and transmitter junction boxes have ports for ¾-inch NPT
conduit connections. These connections should be made in accordance with
local or plant electrical codes. Unused ports should be sealed with metal
plugs. Housing damage will result if metal plugs
are overtightened.
Proper electrical installation is necessary to prevent errors due to electrical
noise and interference. Before making any electrical connections to the
Rosemount 8742C, consider the following standards and be sure to have
proper power supply, conduit, and other accessories. Shielded cable must be
used for best results in electrically noisy environments.
Conduit Connections
The transmitter has ports for ¾–inch NPT conduit connections. If the port is
not being used, conduit seals should to be installed. In some cases, conduits
may also require drainage if moisture could build up in the line.
5.10
(130)
6.48 (165)
3.07
(78)
8.81
(224)
3.43
(87)
3
/
4
”-14 NPT Electrical
Conduit Connections
(2 places)
3
/
4
”-14 NPT
Flowtube Conduit
Connections
(2 places)
7.49 (190)
1.94
(49)
3.00
(76)
LOI Cover
10.5
(267)
11.02
(280)
Содержание 8700 Series
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