3.1.1 Usage limitations system
◆The space in which the unit is to be used must contain at
least 17% oxygen and must not contain any explosive gases or
vapors. In enclosed spaces where there is a risk of oxygen
deficiency, use of the unit should be avoided.
◆In case of physical effort, it is possible that a temporary
negative pressure occurs in the blower unit, resulting in a
reduction of the protection factor of the system.
◆Air speed in excess of 2m/s can affect the protection factor.
◆The ambient usage temperature should be between the limits
of -5 and +50
◆Do not use the unit in circumstances where hazardous gases
and/or vapors are present.
Warning
If the wearer of the respirator feels dizzy or uncomfortable or can
smell/taste something, he should abandon the contaminated area
immediately.
3.1.2 Usage limitations filter element
◆Used filter elements cannot be cleaned.
Warning
Never attempt to clean a filter element; the filter media may be
damaged, resulting in loss of protection.
3.1.3 Charging batteries
The battery is supplied in a non-full charged state; the charging
time for a fully discharged battery is approximately 3 hours.
The automatic setting of the charger prevents damage to the
batteries when the charging time is exceeded.
Under normal circumstances the battery can be charged and
discharged approximately 500 times.
After the battery is completely charged, the charger will switch
over to trickle charging. This will expand the lifetime of the
battery beyond 500 charge cycles. If the unit is used for more
than 8 hours a day, it is recommended that user carry a second
battery for backup.
Batteries may be charged on or off the unit.
3.1.4 Filter assembling
Open the front cover by releasing the retaining clip on the side
of the unit by hand (do not use tools). Fit the filter squarely into the
power unit by aligning the three concave points of the filter box to
the three convex points in the cavity. Then press the filter hard and
rotate a small angle clockwise to lock. To unlock the filter, press it
and rotate anticlockwise.
The pre-filter and the activated carbon filter should be installed
on the inner side of the upper cover, assembled in the order and
direction indicated in Figure 1, and then pressed by the frame.
Three notches on the frame are aligned with three buckles on the
top cover. Press the frame and rotated clockwise to lock. To
disassemble them, press the frame and rotated anticlockwise to
unlock.
3.2Switching on
The unit can be switched on by pushing the ON/OFF button for
about three seconds. An alarm signal will be heard, and the
LCD will display the real statuses of air flow, filter and the
battery power. Then the unit will start on the low speed.
