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Maintenance
UltraVoice Remote Interface (UVRI-B)
Maintenance
Service and maintenance should be performed by qualified personnel familiar
with the UVRI-B, associated controls, and power sources being used and in
conjunction with the authorities having jurisdiction.
The sound output of speakers is capable of causing permanent hearing
damage. Use adequate hearing protection and avoid excessive exposure.
Before servicing or maintaining, ensure that remote activation cannot occur
and disconnect power to the UVRI-B.
To prevent the speakers from sounding, always turn off the power to the
UVRI-B at the AC disconnect and remove any DC power being supplied before
inspecting or maintaining the speakers.
Control Unit Preventive Maintenance
Test the UVRI-B for proper operation at least once a month. A daily test at noon, curfew,
or other selected time is preferred. This not only enhances the usefulness of the UVRI-B
and verifies that it remains ready for use when needed; it also instills confidence in the
reliability of the system.
In order to minimize the potential for a failure, annual inspection and maintenance is
recommended.
General Maintenance
Checking Signal Operational
To check signal operation:
1. When checking for proper control module output, unplug the terminal strip connector
to the speakers to eliminate output from the speaker array.
2. Activate each of the signals and observe the signal indicators on the control module
and the amplifiers.
3. If desired, connect an oscilloscope or digital multi-meter (DMM) to the amplifier
module output terminal strip to observe the amplifier output. This output should be at
least 25.5 V
rms
for the 100 W amplifier during a signal if the amplifier is programmed
to run at full power.
4. Plug all of the amplifier terminal strip connectors to enable amplifier outputs.
5. Verify that the system status is reported correctly at the control point. Check each
status point to verify both pass and fail conditions are correctly reported. Verify that
the relay output closes with each function activated.
