Ramsey Oretronic IV Tramp Metal Detector REC 4479C
Page 44
Visual Inspection
If you are experiencing operational problems with the TMD IV, a quick visual inspection may reveal the source
of the problem. Check the following items before proceeding to more specific troubleshooting procedures.
Refer to the Operating the TMD IV section of this manual for the correct options settings mentioned below.
•
Check power:
o
Make sure that the power switch is turned on
o
Make sure that the power connector block is plugged into the power supply assembly
o
Make sure that the circuit breaker powering the TMD IV is closed.
•
Check the connections
o
Make sure all terminations are secure
o
Make sure all TMD IV wiring and installation is correct according to the drawings provided for
your system.
Diagnosing and Correcting Problems
If setup and calibration were done with the conveyor belt stopped or running empty, background noise caused
by material may be different with the belt running loaded. You should observe the TMD IV for a day or two
before changing the device setup or calibration settings.
There are two basic types of problems you could be having with the TMD IV: false tripping or passing tramp
undetected. Both of these problems are costly. False trips stop the conveyor and interrupt the process flow.
Undetected tramp damages process machinery.
Common reasons for false tripping include:
•
Coil Imbalance
•
Sensitivity set too high
•
Improper bar/rod detection
•
Improper clip (belt splice) detection
Common reasons for passing tramp undetected include:
•
Sensitivity set too low
•
Tramp is too small
•
Coil damage
•
Detector malfunction
The remainder of this section describes the diagnostic processes for these problems and offers suggestions for
correcting them.
WARNING.
Failure to follow safe installation and servicing procedures could result in death or
serious injury.
•
Make sure only qualified personnel perform installation and maintenance procedures in
accordance with the instructions in this manual.
•
Allow only qualified electricians to open and work in the electronics cabinet, power-supply
cabinet, control cabinet, or switch boxes.