7
Honeywell Titan SCBA, 20132
WARNING —Continued
• You must have binocular vision (vision from 
both  eyes)  to  see  and  interpret  the  display   
correctly.  Your  visual  acuity  while  wearing 
the  facepiece  must  meet  the  requirements 
set forth by the authority having jurisdiction 
over your operation and/or workplace.
•  Failure  to  comply  with  this  warning  may 
lead to personal injury, illness, or death.
C. Heads-up Display (HUD)
NOTE
The Titan SCBA comes equipped with a Heads-
Up Display (HUD).
1. The HUD is mounted on the second stage regula-
tor. When the second stage regulator is installed in the 
Twenty/20+ facepiece, the display can be seen through 
openings in the facepiece nozzle cover. When the 
cylinder valve is opened, the HUD activates automati-
cally, and indicates the air pressure remaining in the 
cylinder. The display consists of four green LEDs, 
representing Full, 3⁄4, 1⁄2, and 1⁄3. At full cylinder pres-
sure, all four LEDs are illuminated. As the air pressure 
in the cylinder decreases, the LEDs turn off one at a 
time, thereby indicating the air pressure status. When 
the pressure drops below 50% of cylinder capacity, the 
LED representing 1⁄2 cylinder capacity starts to  ash, 
and continues to  ash for a short time (approximately 
20 seconds) before returning to being continuously lit. 
When the  pressure drops to 1⁄3 (33%) of cylinder ca-
pacity, the last green LED turns red and begins to  ash, 
giving the user a visual low pressure alarm in addition 
to the audible alarm located at the upper left of the 
backpack. On a 2216 psig SCBA, the 1/3 LED will turn 
red and begin to  ash between 731 and 820 psig; on a 
4500 psig SCBA, the 1/3 LED will turn red and begin to 
 ash between 1485 and 1665 psig. When the pressure 
drops to 10% of cylinder capacity, the red LED begins 
 ashing noticeably faster and continues until air pres-
sure drops below approximately 200 psig, at which time 
the display will turn off. There are no LEDs represent-
ing zero air pressure.
2. An external red LED, mounted on the front of the 
HUD module, warns others of the user’s low air status 
by  ashing at the same time the 1⁄3 LED is  ashing 
inside the HUD module. The external red LED  ashes 
noticeably faster when the pressure drops to 10% of 
the cylinder capacity. A red LED at the lower right of the 
backpack performs the same functions. 
3. The back PASS has an amber LED battery status 
indicator. In storage or when the SCBA is activated 
manually or by pressure from the cylinder, the amber 
LED  ashes every ten seconds to indicate a low battery 
condition, and will cease  ashing altogether to indicate 
a dead battery. An audible beep will also sound every 
ten seconds to indicate a low battery condition.
WARNING
The following alkaline battery types must be 
used in the battery compartment in order to 
maintain the  intrinsic safety  certifi cation of 
this product:
• Duracell MN1400
• Duracell PC1400
• Energizer E93
• Energizer EN93
4. To replace the batteries, remove the slotted battery 
cap located on the lower right hand side (when look-
ing at the cylinder with the valve pointing down) of the 
backpack, using a coin, a large,  at blade screwdriver, 
or the male end of the waist strap buckle. Remove the 
old batteries and install new batteries in the orientation 
shown on the molded battery cover. Replace the bat-
tery cap hand tight.
NOTE
Refer  to  applicable  local  ordinances  for 
appropriate disposal of used batteries.
WARNING
•  Prior  to  re-installing  the  battery  cap, 
ensure that the cap O-ring is not damaged. 
Replace damaged O-rings as required. After 
installation, ensure that the cap O-ring is not 
exposed or pinched in the seal area. Failure 
to  comply  with  this  warning  may  lead  to 
personal injury, illness, or death.
• If the low battery alert activates (amber LED 
on the back PASS fl ashes every 10 seconds, 
along with an audible beep) during storage, 
the batteries must be replaced before using 
the SCBA.
•  If  the  battery  alert  in  the  HUD  activates 
during  actual  use  (amber  LED  at  the  lower 
right  of  the  display  fl ashes  once  every 
second), the SCBA may continue to be used. 
The  batteries  must  be  replaced  before  the 
next usage.
•  Failure  to  comply  with  this  warning  may 
lead to personal injury, illness, or death.
D. Chest-mounted Gauge 
If the SCBA is not equipped with a PASS device, the 
chest-mounted pressure gauge is mounted on the right 
shoulder strap and may be swivelled 360° for easy 
viewing. When the cylinder valve is opened, the gauge 
indicates the air pressure remaining in the cylinder.
E. Second Stage Regulator
WARNING
•  An  impact  to  the  second  stage  regulator 
when  the  cylinder  valve  is  open  may 
inadvertently  activate  the  First-Breath-On 
mechanism,  causing  air  to  fl ow  from  the 
regulator  and  diminishing  the  air  in  the 
cylinder.