Audi-Larm™ Audible Alarm Tester P/N 10045522

Audi-Larm™ Audible Alarm Tester P/N 10045522
Audi-Larm™ Audible
Alarm Tester P/N 10045522
INSTRUCTIONS
WARNING
Prior to using this tester, make certain that all applicable required
field retrofits identified in the Product Information News (PIN) titled
Audi-Larm™ Audible Alarm Testing (P/N 10046631) were completed.
Contact MSA for a copy of the PIN article at 1-800-MSA-2222 or visit
www.MSAnet.com/care. All required Audi-Larm maintenance must
be up-to-date before testing the Audi-Larm with this tester. Failure
to follow this warning can cause Audi-Larm malfunction, resulting in
serious personal injury or death.
The warranties made by MSA with respect to the product are voided if the product is not installed, used and serviced in accordance
with the instructions in this manual. Please protect yourself and
your employees by following the instructions. Please read and
observe the WARNINGS inside. We encourage our customers to
write or call for a demonstration of this equipment prior to use or
for any additional information relative to use or repairs.
Call 1-800-MSA-2222 during regular working hours.
TAL 304 (L) Rev. 1
© MSA 2003
Prnt. Spec. 10000005389(A) Mat. 10046632
Doc. 10000016250
AUDI-LARM TESTER
3. Thread cylinder connection of the Alarm Test Fixture
onto the cylinder valve outlet, hand tightening coupling nut.
4. Position the Audi-Larm assembly so that the adjusting
screw is facing out.
5. Thread the Audi-Larm assembly onto the Audi-Larm
connection of the Alarm Test Fixture, hand tightening
coupling nut.
WARNING
This manual must be read carefully by all persons who
have or will have the responsibility for using or servicing the product. Like any complex piece of equipment,
this Alarm Tester from MSA will perform as designed
only if it is used and serviced according to the
Instructions. Otherwise, It could fail to perform as
designed, and persons who rely on this product could
sustain serious personal injury or death.
RINGUP TEST
INTRODUCTION
1. Slightly open the cylinder valve of the SCBA and
observe the pressure gauge needle as it begins to
rise.
This device is intended to test all MSA Audi-Larm assemblies while connected to the SCBA.
Three functional Tests are performed:
WARNING
•
•
•
Ring-up Test
Set point Test
Ring-down Test
Do not block or cover the exhaust port or relief valve
in the Alarm Test Fixture manifold. Failure to follow
this warning can cause over pressurization resulting in
serious personal injury or death.
WARNING
2. The Audi-Larm must ring prior to the pressure gauge
needle reaching the Charge Zone. This indicates that
the Audi-Larm assembly is functioning on ring-up.
3. If it does not ring, refer to the appropriate Audi-Larm
assembly section of the Certified Maintenance
Instructions.
4. Close the cylinder valve when the needle reaches the
Charge Zone, (1600-1800 psig), of the Alarm Tester
Fixture gauge. A pressure relief valve is incorporated
to limit the system test pressure to approximately
1900 psig.
5. Alarm Test Fixture will continuously vent air via the
exhaust port in the Alarm Test Fixture.
The Cylinder Valve must be closed fully; the Regulator
must be in the off position. Open the bypass to relieve
all pressure in the system. Close the bypass fully,
ensuring that the SCBA can be pressurized. Failure to
follow this warning can result in serious personal
injury or death.
For all Audi-Larm assemblies tested, a minimum of 1800
psig Cylinder pressure is necessary for proper tester operation.
INSTRUCTIONS
WARNING
1. Remove protective caps from cylinder and Audible
Alarm connections. Save protective caps for restoreage.
2. Be sure that an o-ring is in place on the insert of both
the Audi-Larm assembly and Alarm Test Fixture.
If the cylinder valve is not fully closed prior to the
gauge reaching the upper band of the Charge Zone,
(1800 psig), the Relief Valve will open and discharge
air from the system.
SET POINT TEST
Audible Alarm Tester
Audi-Larm
Connection
The Alarm Test Fixture gauge is color coded for High and
Low Pressure BMR, High and Low Pressure MMR, and
3000 psig with URC Assembly (3K HUD). It is necessary to
properly identify what style (MMR or BMR) and pressure
range (HP 4500 psig, LP 2216/3000 psig and 3000 psig
URC Assembly) to correctly verify the proper set point.
Relief Valve
Cylinder Connection
2
TAL 304 (L) Rev. 1 - 10046632
AUDI-LARM TESTER
model tested, turn the adjusting screw counterclockwise about 1/8 of one turn. Repeat Test.
• If the Audi-Larm assembly starts to ring at a pressure below the minimum color code, turn the
adjusting screw clockwise about 1/8 of one turn.
Repeat Test.
4. If the Alarm Does Not ring or Does Not ring continuously once activated, refer to the Audi-Larm section of
the Certified Maintenance Instructions.
Note: Upon verification of the proper set point for the
Audi-Larm assembly being tested, the Audi-Larm will continue to ring and pressure will continue to fall in the Alarm
Tester Fixture. This action automatically results in the initiation of the Ring-down test.
RING-DOWN TEST
TYPE OF
AUDI-LARM
to be tested
COLOR SCALE
RINGING PRESSURE
LOW PRESSURE
MMR Alarm
BMR Alarm
Color Orange
Color Blue
510 to 550 psig
540 to 570 psig
HIGH PRESSURE
MMR Alarm
BMR Alarm
Color Blue
Color Orange
1050 to 1200 psig
1000 to 1100 psig
3000psig
with Universal
Rescue Connection
(URC)
Color Blue
3K HUD
720 to 780 psig
PORTABLE
AIR-SUPPLY
SYSTEM
None
540 to 570 psig
AIR-LINE SYSTEM
Cascade System
2216 psig
None
460 to 500 psig
Cascade System
4500 psig
None
1000 to 1100 psig
1. The Audi-Larm assembly must ring continuously until
the Alarm Tester pressure gauge reading is within
color code marked Ring down.
2. If the Audi-Larm assembly does not ring continuously
until the Alarm Tester pressure gauge reading is within
color code, Refer to the appropriate Audi-Larm section of the Certified Maintenance Instructions.
WARNING
The Audi-Larm assembly must ring continuously from
initial activation until reaching the ringdown band, 150
psig, of the tester gauge. The Audi-Larm assembly
must comply with the requirements of all three tests
above. An Audi-Larm assembly not meeting any of the
above requirements must be removed from service
and repaired; see Audi-Larm Section of Certified
Maintenance Instructions. Failure to follow this warning can result in serious personal injury or death.
COMPLETING THE TEST
1. As soon as the system has been pressurized to the
Charge Zone, close the cylinder valve fully resulting in
the pressure bleeding from the system at a controlled
rate.
WARNING
Following the Ring-Down Test. The system’s pressure
must be vented by opening the regulator by-pass
valve of the SCBA prior to removing the Audi-Larm
from the Alarm Test fixture. Failure to follow this warning can result in serious personal injury or death
WARNING
Do not block or cover the exhaust port or relief valve
in the Alarm Test Fixture manifold. Failure to follow
this warning can cause over pressurization resulting in
serious personal injury or death.
Removing the Audi-Larm assembly from Alarm Test
Fixture
1. Remove the Audi-Larm assembly from the Audi-Larm
connection of the Alarm Test Fixture, by unthreading
the coupling nut handwheel.
2. Upon completing the Audi-Larm assembly test procedure, check the Audi-Larm assembly for leaks. Refer
to Audi-Larm assembly Leak-Testing section of the
Certified Maintenance Instructions.
2. There is no additional action from the user other than
closing the cylinder valve to initiate the set point test.
3. The Audi-Larm assembly must begin ringing within the
ringing pressure range indicated above.
• If the Audi-Larm assembly starts to ring at a pressure above the allowable color code range for the
TAL 304 (L) Rev. 1 - 10046632
3
AUDI-LARM TESTER
3. Reminder: Ensure that all required Audi-Larm maintenance is up-to-date as referenced on page 1 and outlined in PIN Article P/N 10046631. This must include
verification that the Audi-Larm bell screws are secure.
If the Audi-Larm is a single screw model, also see PIN
Articles P/N 10041212 Rev.0 and P/N 10041213 Rev. 1.
Gauge Recommended Calibration Schedule
1. The gauge manufacturer requires that the gauge be
calibrated a minimum of once a year. The gauge can
be calibrated by any qualified calibration laboratory/
service center.
STORAGE
Be careful not to drop the Alarm Tester. This could damage the calibration of the gauge. Store the Alarm Tester in
the packaging that it was received in. Reinstall the protective caps, supplied with the Audible Alarm Tester, on the
cylinder connection and Audi-Larm connection. Store in a
clean environment, free of any contaminants, and free of
any heavy objects that might damage the Alarm Tester.
4
TAL 304 (L) Rev. 1 - 10046632
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