User Manual

11
DRAFT COPY
DRAFT COPY
In some circumstances after experiencing RFI, it may be necessary to re-
move the unit from service. Remove and reinstall the batteries to reset the
unit (see BATTERY REPLACEMENT section of this instruction, page 10).
Then inspect and return the unit to service.
If the PAK-ALERT SE + 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
to activate the alarm.
IF THE SYMPTOMS OF RFI OCCUR, THE RESPIRATOR USER MUST
CHECK THE PAK-ALERT SE + 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 CON-
TINUES TO MALFUNCTION IN ANY OTHER WAY, PROCEED TO A SAFE
AREA, REMOVE THE RESPIRATOR FROM SERVICE AND TAG FOR RE-
PAIR BY AUTHORIZED PERSONNEL.
Minimize or eliminate the effects of RFI by protecting the PAK-ALERT SE +
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 5.
HAND
HELD
RE-
CEIVER
FIGURE 5
RFI WARNING AREAS
SENSOR
MODULE
CONTROL
CONSOLE
KEEP RADIO ANTENNAS AT LEAST
SIX (6) INCHES FROM THESE AREAS