User's Manual

Page 13 of 28
P/N 595277-01 Rev E 10/17
WARNING
KEEP THE ANTENNAS OF HAND-HELD RADIOS
AT LEAST SIX (6) INCHES AWAY FROM THE
CONTROL CONSOLE AND THE SENSOR MODULE
OF THE PAK-ALERT DISTRESS ALARM WHEN
TRANSMITTING. CLOSE PROXIMITY OF RADIO
EQUIPMENT TO THE PAK-ALERT DISTRESS
ALARM DURING RADIO TRANSMISSION MAY
CAUSE THE UNIT TO MALFUNCTION. FAILURE
TO RECOGNIZE A MALFUNCTION OF THE
PAK-ALERT DISTRESS ALARM AND TAKE THE
PROPER CORRECTIVE ACTION MAY RESULT A
NONWORKING DISTRESS ALARM WHICH WILL
NOT SOUND IF THE USER STOPS MOVING AND
LEAD TO SERIOUS INJURY OR DEATH.
WARNING
BE AWARE OF THE POTENTIAL EFFECT OF
RADIO TRANSMISSIONS FROM BASE STATION
OR TRUCK MOUNT RADIOS WHEN USING A
RESPIRATOR WITH THE PAK-ALERT DISTRESS
ALARM. CLOSE PROXIMITY OF RADIO
EQUIPMENT TO THE PAK-ALERT DISTRESS
ALARM DURING RADIO TRANSMISSION MAY
CAUSE THE UNIT TO MALFUNCTION. FAILURE
TO RECOGNIZE A MALFUNCTION OF THE
PAK-ALERT DISTRESS ALARM AND TAKE THE
PROPER CORRECTIVE ACTION MAY RESULT A
NONWORKING DISTRESS ALARM WHICH WILL
NOT SOUND IF THE USER STOPS MOVING AND
LEAD TO SERIOUS INJURY OR DEATH.
DETECTING AND AVOIDING RADIO FREQUENCY
INTERFERENCE
When any electronic device is adversely affected by radio waves, Radio
Frequency Interference (RFI) is said to have occurred. All electronic devices
like the PAK-ALERT distress alarm may be subject to the effects of RFI. Ra-
dio transmissions from the antennas of radios including those used by re
ghters, police and other public safety related personnel may produce RFI
in the PAK-ALERT distress alarm. RFI may occur while the radio is transmit-
ting if the respirator equipped with the PAK-ALERT distress alarm is in close
proximity to a base station or high-powered vehicle mounted radio, or if the
antenna of a personal portable hand held radio is touching or within six (6)
inches of the Control Console or Sensor Module of the PAK-ALERT distress
alarm. See FIGURE 5.
Be aware of the symptoms of RFI. A PAK-ALERT distress alarm affected by
RFI may temporarily give false indications such as the sudden sounding of
the loud continuous three-tone chirp of the full alarm. In some instances the
lights on the control console may ash without sounding the alarm. In rare
circumstances, an alarm which was sounding may stop.
If the PAK-ALERT exhibits any of the symptoms of RFI, identify the source
of the RFI and do the following:
– If the symptoms of RFI occur when standing near a base station trans-
mitting antenna or a truck mounted radio antenna, move away from the
antenna until the symptoms stop.
– If the symptoms of RFI occur while transmitting on a hand-held radio,
move the radio away from the PAK-ALERT .
CHECK THE CONTROL CONSOLE AND BE CERTAIN THE GREEN LIGHT
IS FLASHING NORMALLY WHEN THE INTERFERENCE STOPS, REGARD-
LESS OF THE SOURCE.
In normal usage with the air cylinder open, the PAK-ALERT distress alarm
DRAFT
NOT FOR DISTRIBUTION