Heads-Up Display Quick Guide - Scott 2.2 Operating & Maintenance Instructions

b) THE USER mUST PERIODICALLY CHECK THE REmOTE
PRESSURE GAUGE ON THE SHOULDER STRAP TO mONITOR
THE RATE OF AIR CONSUmPTION AND THE REmAINING AIR
SUPPLY.
P e r i o d i c a l l y c h e c k r e m o t e
pressure gauge to monitor the
rate of air use.
c) THE USER mUST ALWAYS ALLOW SUFFICIENT AIR FOR
EGRESS FROm THE CONTAmINATED AREA.
d) IF RE-ENTRY IS ATTEmPTED AFTER THE AIR HAS BEEN PAR-
TIALLY CONSUmED (CYLINDER LESS THAN FULL), THE USER
mUST BE CERTAIN THAT THE REmAINING AIR WILL BE SUF-
FICIENT TO PERFORm THE REQUIRED TASKS AND RETURN
TO SAFETY.
2. If any end of service indicator alarm actuates, (the VIBRALERT alarm,
the HEADS-UP DISPLAY rapidly flashing red light), either individu-
ally or in together, LEAVE THE AREA REQUIRING RESPIRATORY
PROTECTION ImmEDIATELY.
a) When you are in a safe area where you are certain that respira-
tory protection is not required, terminate the use of the respirator,
(see TERmINATION OF USE section of this instruction).
b) Determine the cause of the alarm.
c) If the end of service time alarm is actuated by a depleted air
supply cylinder, replace the cylinder in accordance with the
CYLINDER REPLACEmENT PROCEDURE section of this instruc-
tion. Use of the respirator may be resumed with a fully charged
breathing air cylinder installed.
d) If the end of service indicator alarm has actuated for an unknown
reason, DO NOT RESUmE USE OF THE RESPIRATOR. Remove
the respirator from service and tag it for repair by authorized
personnel.
THE HEADS-UP DISPLAY HAS AN AUTOmATIC BRIGHTNESS CONTROL
THAT DImS THE DISPLAY IN LOW LIGHT SITUATIONS AND RETURNS
THE DISPLAY TO FULL BRIGHTNESS IN BRIGHT LIGHT SITUATIONS.
THE LIGHT SENSOR IS LOCATED IN THE FRONT OF REmOTE GAUGE
HOUSING. KEEP THE FRONT OF THE REmOTE GAUGE HOUSING
CLEAN.

HEADS-UP DISPlAy QUICK GUIDE

INDICATOR lIGHTS
TWO lIGHTS GlOWING
ONE lIGHT GlOWING
ONE lIGHT FlASHING SlOWly
ONE lIGHT FlASHING RAPIDly
FIGURE 14
NOTE
WHAT THEy MEAN
FUll CylINDER
3/4 CylINDER
1/2 CylINDER
1/3 CylINDER
Page 29 of 48
WARNING
T H E R E S P I R A T O R
IMMEDIATEly lEAVE THE AREA REQUIRING
RESPIRATORy PROTECTION WHEN AN END
OF SERVICE INDICATOR AlARM ACTUATES.
ACTUATION OF ANy END OF SERVICE
INDICATOR AlARM WARNS THE USER THAT
APPROXIMATEly 33% OF FUll PRESSURE
REMAINS IN THE AIR SUPPly CylINDER
(THAT IS, APPROXIMATEly 2/3 OF THE
TOTAl AIR SUPPly HAS BEEN USED) OR
THAT THERE IS A MAlFUNCTION IN THE
RESPIRATOR. A DElAy IN lEAVING THE
A R E A A F T E R A l A R M A C T U AT I O N M Ay
RESUlT IN SERIOUS INJURy OR DEATH.
WHAT yOU SHOUlD DO
CONTINUE USING RESPIRATOR
lEAVE HAZARDOUS AREA IMMEDIATEly
USE OF RESPIRATOR
CONTINUED ON NEXT PAGE...
P/N 595279-01 Rev. B 5/14
U S E R M U S T