Horizontal downflow pleated cartridge dust collector
17
13 MAGNEHELIC GAUGE
The Magnehelic is a differential pressure gauge used to measure the difference between the clean
and dirty air. This allows a visual reference on the filters status and indicates when it is time to
replace.
This gauge is generally factory installed unless under specific request to A.Q.C.. If the Magnehelic
gauge is not part of the collector, connect the
(HIGH-PRESSURE)
tube on the
"dirty"
side of the
collector. Connect the other
(LOW-PRESSURE)
tube on the
"clean"
side of the collector.
This gauge is not available when the collector is supplied with a DCT-1000 electronic board and a
DCP pressure module since it is this one that will read the pressure differential.
14 START/STOP PROCEDURE
14.1 Start up with new filters
Shut 50% off all inlet and outlet dampers (if any) before starting the unit. This procedure is mostly
helpful when the dust to be filtered sticks to the filter surface. Do not operate the filtration
system until the pressure differential has increased by at least 1" w.g. from the starting point. This
operation allows "caking" onto the cartridges for a better filtration efficiency.
14.2 Regular start up
Ensure all optional equipment (i.e. screw conveyor, rotary valves, etc.) except the blower are
operational. Open the compressed air valve and activate the sequencer. Start the blower and allow
dirty air into the filtration unit. It is imperative that you follow the sequence of this operation.
14.3 Shut down
To shut down the system, follow these steps. Cut power to the fan. Shut off compressed air to unit
and sequencer. If there is a delayed pulse operation. Close inlet and outlet dampers in order not
to have dirty air back into the collector and avoid risks of explosion. If optional equipments are
installed, shut down such equipment in reverse order.
15 SAFETY
15.1 Staff-Workers
All tasks on the dust collector must be performed by a minimum of 2 people and this, at all times.
Once all duties have been completed, remove all tools from inside the collector.
WARNING!
Never work alone inside the dust collector. All staff must be
accounted for prior to closing the collector access doors and
starting the collector.
