Make sure both the External
Pump cable and the flow tubing
connector are connected to the
DustTrak monitor and the
External pump module. Lock
the External Pump Cable in
place by rotating the connector
clockwise until you hear it snap
in place
Make sure the tubing between
the DustTrak monitor and the
External pump module is not
kinked and is free of any sharp
bends
Make sure the exhaust adapter
is connected to the exhaust of
the DustTrak monitor
Make sure the External Pump
module filters are not clogged.
If found dirty, replace the two
HEPA filters
Remove and clean inlet nozzle.
Pay close attention to the tip of
the nozzle that is inserted into
the instrument to ensure it is
clear of any contamination
Replaced the filters per
instructions in the maintenance
section of this manual. Make
sure to reset the filter mass and
date once the filters have been
changed
This is only a warning. The
unit will continue to operate
normally until the increase in
pressure drop across the
filter is so high that the pump
can no longer maintain the
set flow rate.