If the SEMS PDA distress alarm is affected by RFI when the respirator air supply is turned off or the cylinder is empty, the distress alarm could be turned off during use. If this occurs, depress the RED Manual Alarm Button and hold at least two seconds to activate the alarm.
IF THE SYMPTOMS OF RFI OCCUR, THE RESPIRATOR USER MUST CHECK THE SEMS PDA DISTRESS ALARM TO VERIFY THAT IT IS FUNCTIONING PROPERLY. IF THE GREEN LIGHT ON THE CONTROL CONSOLE DOES NOT RESUME FLASHING IN THE NORMAL MANNER AFTER EXPERIENCING THE SYMPTOMS OF RFI, OR IF THE UNIT CONTINUES TO MALFUNCTION IN ANY OTHER WAY, PROCEED TO A SAFE AREA, REMOVE THE RESPI- RATOR FROM SERVICE AND TAG FOR REPAIR BY AUTHORIZED PERSONNEL.
Minimize or eliminate the effects of RFI by protecting the SEMS PDA with the following steps:
•Maintain a safe distance from a base station transmitting antenna or a truck mounted radio antenna.
•Keep the antennas of hand held radios at least six (6) inches away from the CONTROL CONSOLE or the SENSOR MODULE (See FIGURE 2).
KEEP RADIO ANTENNAS AT LEAST | CONTROL | |
SIX (6) INCHES FROM THESE AREAS | ||
CONSOLE | ||
|
SENSOR |
|
MODULE | WARNING |
| |
| BE AWARE OF THE POTENTIAL EFFECT OF |
| RADIO TRANSMISSIONS FROM BASE STATION |
| OR TRUCK MOUNT RADIOS WHEN USING A |
| RESPIRATOR WITH THE SEMS PDA DISTRESS |
| ALARM. Close proximity of RADIO EQUIPMENT |
| to the SEMS PDA DISTRESS ALARM during ra- |
| dio transmission may cause the unit to MAL- |
| FUNCTION. FAILURE TO RECOGNIZE A MAL- |
| FUNCTION OF THE SEMS PDA DISTRESS |
| ALARM AND TAKE THE PROPER CORRECTIVE |
| ACTION MAY RESULT A NONWORKING DIS- |
| TRESS ALARM WHICH WILL NOT SOUND IF THE |
| USER STOPS MOVING AND LEAD TO SERIOUS |
| INJURY OR DEATH. |
FIGURE 2
RFI WARNING AREAS
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