Garrett PD 6500i User Manual page 29

SYNC <MASTER or SLAVE>, will appear on LCD. If user is authorized to
change synchronization, the user may use the + / - touchpads to change
sync to MASTER or SLAVE.
Press ACCESS for the next adjustment or OPERATE to resume normal
operation.
3.5.17 CHANNEL
This feature enables multiple walk-through metal detectors to operate
simultaneously in proximity. Use Channels 1 and 2 when two or more
PD 6500i's are operating near each other. (See Section 2.4)
CHANNEL <1 or 2>, will appear on LCD. If user is authorized to change
channels, the user may use the + / - touchpads to change channel to 1 or 2.
Press ACCESS for the next adjustment or OPERATE to resume normal
operation.
CAUTION! When using any other Garrett walk-through metal detectors
with PD 6500i's, use channels A and B to coincide with other Garrett
walk-through channels A and B.
3.5.18 ALARM LEVEL
Alarm level is a tool that helps you determine the lowest level of
sensitivity required to activate an alarm for a particular metal object. This
information can then be used to determine the desired level of sensitivity.
ALARM LEVEL <current alarm level setting>, will appear on LCD. The
following is an example of the use of alarm level.
©2003 GARRETT METAL DETECTORS
GARRETT PD 6500i
USER MANUAL
1. Note the alarm level that appears (e.g., ALARM LEVEL: 123).
2. Press the + (plus) touchpad.
3. Ensure that you are metal free.
4. Hold the selected test object or place it on your person.
5. Walk through the metal detector.
6. Note the new alarm level reading.
7. Change the test object's location and/or orientation.
8. Repeat steps two through seven several times until you are
satisfied that you've performed enough tests.
9. Choose the highest reading that detected the test object.
10. Return to the base sensitivity menu item and enter the alarm level
reading that you chose in Step 9 as the base sensitivity. To confirm
that the new base sensitivity setting is appropriate, test the
selected test object at varying locations and orientations within the
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