Emerson Process Management 8732 manual Conduit Ports Connections

Reference Manual

00809-0100-4663, Rev BA January 2010

Rosemount 8732

Figure 2-2. Rosemount 8732

Electronics Board and Hardware

Switches

Conduit Ports and

Connections

1.Disconnect power to the transmitter.

2.Remove electronics cover.

3.Remove display if applicable.

4.Identify the location of each switch (see Figure 2-2).

5.Change the setting of the desired switches with a small screwdriver.

6.Replace the electronics cover.

Both the sensor and transmitter junction boxes have ports for 1/2-inch NPT conduit connections, with optional CM20 and PG 13.5 connections available. These connections should be made in accordance with national, local or plant electrical codes. Unused ports should be sealed with metal plugs and PTFE tape or other thread sealant. Connections should also be made in accordance with area approval requirements, see examples below for details. Proper electrical installation is necessary to prevent errors due to electrical noise and interference. Separate conduits are not necessary for the coil drive and signal cables connecting the transmitter to the sensor, but a dedicated conduit line between each transmitter and sensor is required. A shielded cable must be used.

Example 1: Installing flanged sensors into an IP68 area. Sensors must be installed with IP68 cable glands and cable to maintain IP68 rating. Unused conduit connections must be properly sealed to prevent water ingress. For added protection, dielectric gel can be used to pot the sensor terminal block.

Example 2: Installing flowmeters into explosion proof/flameproof areas. Conduit connections and conduit must be rated for use in the hazardous area to maintain flowmeter approval rating.

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