Garrett MT 5500 User Manual page 18

sources. Settings from 1 to 63 are possible through the use of + and - touchpads. If noise is
observed at your desired operating sensitivity, increment the Video Filter settings to locate the set-
ting with least interference as observed by fluctuation of the Bar Graph.
Press ACCESS for the next adjustment or OPERATE to return to normal operation.
5.6 RELAY
This feature allows the AC and DC relay circuits to be changed easily to Normally Open (N/O) or
Normally Closed (N/C) to meet installation requirements. Use + and - touchpads to select RELAY
N/C or RELAY N/O (See Section 11.4). Press ACCESS for next adjustment or OPERATE to return
to normal operation.
5.7 ALTER ACCESS CODE #1
This Supervisor Adjustments Code has been preset at the factory at 1234. To change this code:
1. Press the + touchpad.
2. Enter a new four-digit code.
3. The LCD display will prompt REPEAT CODE.
4 . Enter the same four digits of the new code and it will be set and CODE ENTERED OK will be
displayed. (If different digits are entered, the display will indicate INVALID ENTRY, and steps 2,
3 and 4 must be repeated.)
Press ACCESS for next adjustment or OPERATE to return to normal operation.
5.8 ALTER ACCESS CODE #2
This Installation Access Code has been preset at the factory at 5678. To change this code:
1. Press the + touchpad.
2. Enter a new four-digit code.
3. The LCD display will prompt REPEAT CODE.
4. Enter the same four digits of the new code and it will be set and CODE ENTERED OK will be
displayed. (If different digits are entered, the display will indicate INVALID ENTRY, and steps 2,
3 and 4 must be repeated.)
5. Press OPERATE to exit the Adjustment Mode and enable the detector to be operated normally.
If ACCESS is pressed, this Installation Adjustment cycle will be repeated, beginning with
Receiver Balance.
5.9 RESETTING FACTORY DEFAULT ACCESS CODES
If a code number is ever lost or forgotten, codes may be reset to factory default settings through
the following procedure:
• Open the main cover of the Detection Unit;
• Remove the three (3) screws that hold the Controller Circuit Board cover;
• With power connected and the unit in its Operate Mode press the Access Code Reset button in
the upper center of the circuit board.
• ACCESS CODE #1 will again be 1234 and ACCESS CODE #2 will be 5678.
SPECIAL NOTE: For maximum security it is recommended that both Access Code numbers be
changes from the factory default settings and that the numbers be known only to those who use
them. Record the new code numbers on the Access Settings card that accompanied this Owner's
Manual. It is also suggested that codes be changed periodically, especially when any changes are
made in personnel with access to the codes.
© 2006 GARRETT METAL DETECTORS
MT 5500
User Manual
18 PN 1530200.F.0506