Thermo Scientific Oretronic III, Operating & Service Manual

Page: 33 / 152

Installing the TMD
Thermo Fisher Scientific Installing the TMD 2-5
REC-4105 Rev L
1. Assemble the coil support structure and the coils so that all electrical
cables for the transmitter and receiver coils are on the same side of
the conveyor.
2. Mount the transmitter coil to allow it to swing in the direction of
belt travel at a height above the belt so it will clear normal conveyor
loads.
3. The swing arm feature allows high loads to pass without damage. If
the transmitter coil is mounted too high, the system's sensitivity is
reduced.
4. Set the receiver coil located under the belt 1–2 in. (25.4–50.8 mm)
below the belt line. The belt must not rub on the receiver coil.
5. Mount the coils across the conveyor on the centerline between the
two idlers.
6. Idler spacing at the coil location must be greater than 4 ft (1.2 m). If
for mechanical reasons this spacing is not possible, the distance may
be reduced by using rubber impact-type idlers.
7. Remove all deck plates, cross bracing, and return idlers located
within 4 ft (1.2 m) of the receiver coil.
The coil support structure is shipped from the factory partially
assembled. The coil is mounted on the cross members. Refer to Under
Belt Single Coil Outline and Mounting (D07328C-B101), Under Belt
Single Coil, Assembly Stand, (D07328C-A110) for assembly
information. Refer to Under Belt Single Coil Installation Placement
(D07328C-A102) for detailed information about positioning system
components correctly.
Note
: The coil support structure must be located so that the conveyor
will stop before any tramp is discharged.
Use the following procedure to assemble and install the coil support
structure and coil on your conveyor:
Assemble the coil support structure.
Set the coil under the belt 1–2 in. (25.4–50.8 mm) below the belt line.
The belt must not rub on the coil.
Mount the coil across the conveyor on the centerline between the two
idlers.
Installing the Coil
Support Structure and
Coil for an Under Belt
Single Coil TMD