Ramsey Oretronic IV Tramp Metal Detector REC 4479C
Page 29
Setting System Options
Before calibrating the TMD IV control, you must configure the system options from the Options screen. The
following options are available:
•
Sync Input:
The sync input allows the TMD IV to work in parallel with other TMD IV detectors with coils
installed within 30’ (10
meters) of each other. One TMD IV will act as the controller, and the other will
act as a syncro. In order to avoid interference, the syncro unit will listen to the controller unit and
generate its magnetic pulse during the controller’s “down time”.
•
Bar/Rod Detect:
If long pieces of tramp are to be detected (such as lengths of rebar or pipes), the
bar/rod detection algorithm must be enabled. When this option is set to Enabled, an edit field
becomes available in the Settings screen for entering the maximum bar length.
•
Clip Detect:
If the conveyor belt has a metallic repair clip installed, a switch can be installed so that, as
the clip approaches the coils, the control unit can temporarily reduce sensitivity in order to avoid a
false detection without reducing the overall sensitivity of the TMD IV. When this option is set to
Enabled, an edit field becomes available in the Settings screen for entering the distance from the clip
detection switch to the coils.
•
Speed Sensor:
For belts running at variable speeds, a speed sensor is needed to allow distance values
entered for features such as marker distance or clip distance, to be used as functions of the speed
sensor input rather than time. If the speed sensor option is enabled, a Speed Sensor Calibration screen
becomes available in the Calibration menu.
•
External Communication:
The TMD IV can communicate with external devices through a Modbus
interface via an RS-485 physical connection. At this writing, no other interface options are available
•
Language:
Select the language in which you wish to operate using this selection. The user interface
will switch to this language as soon as you press “Accept
.
”
Available languages may include English,
Spanish, Italian, German, French, and Chinese.
•
Units:
Select metric (meters, meters per second) or English (feet, feet per minute) units for entering or
displaying distances or speeds.
•
Line Frequency:
Set the frequency of your AC (line) power in accordance with your site requirements
and/or electrician.
•
Password Protection:
This option secures the user interface from tampering. If this option is selected,
the device will enter protected mode after 5 minutes of inactivity, and only the Run menu and View
menu will be available. The View menu allows a user to bring up the Settings, Options, and Alarm
menus in read-only mode and, when Password Protection is set to Enabled, provides an edit control
for entering the password, which unlocks the rest of the user interface.
Measuring Belt Speed
In order for the TMD IV to operate properly, the belt speed must be known. This value is used for tuning the
detection algorithm and for setting the timing for any clip detection options.
1.
Determine the length of the belt, including the return path and any idler/tensioner loops.
2.
Identify (or make) a mark on the belt that’s large or noticeable enough to spot as the belt is moving at
production speeds.
3.
Identify a specific point on the conveyor that will act as your starting and ending reference position.
