Amron 2820A-02, User Manual, Page: 22 / 33

2820A-02 & 2820A-03 CHAMBER COMMUNICATOR USER MANUAL
2820A-02-UM REV 1.0
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3. Turn the SPEAKER SWITCH off to avoid acoustic feedback.
4. Turn on the communicator and verify the BATTERY CONDITION INDICATOR
is on or blinking. If the LED does not come on at all, then replace or recharge
the battery. If that does not resolve the problem, then go to the troubleshooting
to determine the cause.
5. Have a second person enter the chamber inner lock. Press the PUSH-TO-
TALK SWITCH and talk into the PANEL MIC. Verify the person in the chamber
can hear you. Adjust the INNER LOCK VOLUME as necessary.
6. Have the person in the chamber talk into the talk-back speaker. Verify you can
hear them. Adjust the OPERATOR VOLUME as necessary.
7. Repeat steps 4 and 5 in the outer lock.
8. Insert the hand-held black plug into the TENDER HEADSET JACK (black).
Insert the yellow plug into the PUSH-TO-TALK JACK (yellow). Press the push-
to-talk button and talk into the hand-held microphone. Verify that the person in
the chamber can hear you. Remove the hand-held microphone and turn off the
SPEAKER SWITCH.
6.2 GENERAL MAINTENANCE
The chamber communicator is designed to provide years of continuous, failure-free service
when properly used and maintained. There are a few important things that the user can do to
extend the life of their equipment
1. Handle the diver communicator with care. Do not throw it around or drop it. Select a work
area where the communicator and wire connecting to it are out of everyone's way so it is
not knocked over.
2. Clean the communicator after use or when needed.
3. When using a rechargeable battery, the battery should be recharged after use or as soon
as possible when the BATTERY CONDITION INDICATOR starts blinking.
6.3 RECOMMENDED MAINTENANCE SCHEDULE
The following sections outline the recommended scheduled maintenance.
6.3.1 DAILY MAINTENANCE
Wipe off any accumulated dirt on the front panel or connectors using a clean, damp
cloth. Pay particular attention to where the various front panel components attach
to the panel.
6.3.2 WEEKLY MAINTENANCE
Wipe off any accumulated dirt on the front panel or connectors using a clean, damp
cloth. Pay particular attention to where the various front panel components attach
to the panel. Inspect the PUSH-TO-TALK SWITCH and volume controls for smooth
operation. Inspect the PUSH-TO-TALK BUTTON, binding posts and volume
controls for smooth operation.