Thermo Scientific Oretronic III, Operating & Service Manual

Page: 52 / 152

Operating the TMD
3-6 Operating the TMD Thermo Fisher Scientific
REC-4105 Rev L
Note
: At high belt speeds, the bar graph may not respond quickly
enough to accurately indicate the signal strength of a metal trip.
The front panel has two types of display indicators: an eight-character
alphanumeric display and a three-digit counter LED. Figure shows these
indicators.
The display shows the Run screen and the counter shows the total count
when the TMD is in Run mode. Total count is the running total of
detected tramp (or total trips). Total count cannot be reset. In
Setup/Calibrate mode, the counter shows variable values.
When the display shows the Run screen and metal is detected, the
counter shows the coast count. Coast count is the number of pieces of
tramp detected since the TMD tripped (or while the belt was “coasting”
to a stop). Pressing the RESET key sets the coast counter to zero.
If the display is anywhere else in the scroll, the counter shows the
current value of the displayed variable.
• To access the variables, use the scroll keys to move the display up
and down the scroll.
• Change variables by pressing the VALUE keys.
• You must press the ENTER key to apply a new value.
• When the value of a variable has been changed but not entered, the
value of the variable flashes.
The remainder of this section describes the display screens in the order
they appear in the scroll.
The first screen in the scroll is the Run screen. This is the screen you
will see when the system powers up. The display shows COUNT and
the counter shows the total count of detected tramp. The NORMAL
LED is lit.
If the TMD has tripped, the NORMAL LED is off and the ALARM
LED is lit. The counter shows the coast count, if any, of tramp metal
detected since the trip. The display shows METAL if metal was
detected. If the bar/rod detection option is active and a long bar or rod is
detected, the display shows LONG BAR.
Front Panel
Displays
Run Screen