Instruction manual

MODEL XMT-A-FF/FI SECTION 2.0

INSTALLATION

SECTION 2.0

INSTALLATION

Type of Mounting Section

Panel 2.2.2

Pipe 2.2.3

Surface 2.2.4

2.1 UNPACKING AND INSPECTION

Inspect the shipping container. If it is damaged, contact the shipper immediately for instructions. Save the box. If there is

no apparent damage, unpack the container. Be sure all items shown on the packing list are present. If items are missing,

notify Emerson Process Management immediately.

2.2 INSTALLATION

2.2.1 General Information

1. Although the transmitter is suitable for outdoor use, do not install it in direct sunlight or in areas of extreme tempera-

tures.

2. Install the transmitter in an area where vibrations and electromagnetic and radio frequency interference are minimized

or absent.

3. Keep the transmitter and sensor wiring at least one foot from high voltage conductors. Be sure there is easy access

to the transmitter.

4. The transmitter is suitable for panel, pipe, or surface mounting. Refer to the table below.

5. The transmitter case has two 1/2-inch (PG13.5) conduit openings and four 1/2-inch knockouts. One conduit opening

is for the power/output cable; the other opening is for the sensor cable. The center knockout in the bottom of the enclo-

sure should be removed only if a second sensor is required, i.e., if free chlorine with continuous pH correction is being

measured. (Note: Earlier versions of the Xmt-A-FF/FI pipe/surface mount transmitters may have three openings in the

bottom of the enclosure. The transmitter is shipped with a NEMA 4X plug installed in the center opening.)

Figure 2-1 shows how to remove a knockout. The knockout grooves are on the outside of the case. Place the screw-

driver blade on the inside of the case and align it approximately along the

groove. Rap the screwdriver sharply with a hammer until the groove cracks.

Move the screwdriver to an uncracked portion of the groove and continue

the process until the knockout falls out. Use a small knife to remove the

flash from the inside of the hole.

6. Use weathertight cable glands to keep moisture out to the transmitter. If

conduit is used, plug and seal the connections at the transmitter housing to

prevent moisture from getting inside the instrument.

7. To reduce the likelihood of stress on wiring connections, do not remove the

hinged front panel (-11 models) from the base during wiring installation.

Allow sufficient wire length to avoid stress on conductors.

FIGURE 2-1. Removing the Knockouts