MSA ClearCommand 10023056 Operating And Maintenance Instructions page 2

10022714 9/26/00 11:42 AM
TABLE OF CONTENTS
NIOSH APPROVAL INFORMATION ...................................2
Cautions and Limitations................................................2
Special Users Instructions..............................................2
DESCRIPTION....................................................................2
Intrinsically-Safe Rating .................................................2
SYSTEM OPERATION (with SCBA) ..................................3
Amplifier..........................................................................3
Amplifier Radio Interface ................................................3
Using the Radio without the Amplifier RI .......................3
NIOSH APPROVAL INFORMATION
CAUTIONS AND LIMITATIONS
I - Contains electrical parts which have not been evaluat-
ed as an ignition source in flammable or explosive
atmospheres by MSHA/NIOSH.
N - Never substitute, modify, add, or omit parts. Use only
exact replacement parts in the configuration as speci-
fied by the manufacturer.
S - Special or critical User's Instructions and/or specific
use limitations apply. Refer to User's Instructions
before donning.
SPECIAL USERS INSTRUCTIONS
1. Do not alter this unit. You will void the intrinsic-safety
rating, and may affect the intrinsic-safety of the
device.
2. Evaluate this unit and any radio transceiver with which
it may be used before entering a hazardous atmos-
phere. Be certain that this unit is not affected
adversely by radio frequency energy.
3. Evaluate this unit and any radio transceiver with which
it may be used as a source of radio frequency interfer-
ence to other apparatus before entering a hazardous
atmosphere.
4. Misuse or abuse of the ClearCommand, or the equip-
ment to which it is attached, or using this equipment
in a manner or situation not intended by the manufac-
turers, may result in damage to the ClearCommand, or
equipment connected to the ClearCommand, or may
result in personal injury or death to the user or per-
sons dependent on the user.
5. Always inspect the communications system for dam-
age before use. If damage is found, tag the cable and
immediately remove the device from service. NEVER
USE A DAMAGED OR NON-FUNCTIONAL COMMU-
NICATIONS SYSTEM!
Note: The ClearCommand Amplifier or Amplifier RI are for
use with an Ultra Elite facepiece. They cannot be used
without the proper installation of the ClearCommand
Bracket and Voicemitter Kit from MSA (P/N 10023055)
Page 2
DESCRIPTION / PREPARING FOR USE
CLEANING and MAINTENANCE........................................3
Cleaning and Disinfecting...............................................4
Inspection .......................................................................4
Storage ..........................................................................4
Battery Disposal .............................................................4
REPAIR PROCEDURES .....................................................4
Replacement Parts .........................................................4
DESCRIPTION
The ClearCommand™ Communication System (Amplifier
RI Version) allows a user to communicate clearly and easi-
ly, both face-to-face and over a hand-held radio, while
wearing an SCBA equipped with a Ultra Elite facepiece.
The ClearCommand Voice Amplifier consists of three sep-
arate assemblies: An internal microphone assembly, a
mounting bracket, and either a voice amplifier or a voice
amplifier with radio interface. The voice amplifier RI (radio
interface) includes an earspeaker and cable to connect to
a radio unit. Each amplifier has a Low Battery LED indica-
tor. The amplifier can be attached or removed from the
facepiece in seconds without tools.
The amplifier operates from two standard AAA alkaline
batteries and notifies the user when the batteries need
replaced.
Intrinsically-Safe Rating
The ClearCommand Communication System is certified
Intrinsically-Safe in the United States for use in Class 1,
Division 1, Groups A, B, C, D, E, F, and G hazardous loca-
tions.
The ClearCommand Communication System is certified
intrinsically-safe in Canada CAN CSA-C22-2- No. 157-92
Note: The intrinsically-safe level of any system which
uses the ClearCommand is that of the lowest intrinsically-
safe rating of any single component in the system.
CAUTION
Substitution of components may eliminate or compro-
mise intrinsic safety.
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