Troubleshooting guide

PHOTOHELIC GUAGE CONTROL WITH
SUPRA-CLEAN TIMERBOARD
When using a Photohelic Guage with Supra-Clean
timerboard, the timerboard is set to “PS” pulse mode
(pulse cleaning activated by the Photohelic control) or
“Continuous Clean” pulse mode to override the
Photohelic Guage. With the Photohelic Guage control,
the desired pressure can be maintained by adjusting the
high and low setpoints on the gauge. Adjust the upper
setpoint to the desired pressure settings plus 0.25"
(factory recommended setting is 3"). Adjust the lower
setpoint to the desired setting minus 0.25" (factory
recommended setting is 2.5"). This allows a 0.5"
“deadband” and the pulse system will maintain the
desired pressure (factory recommended operating point
is 2.75"). If the pressure remains above the desired
operating point, the pulse frequency can be increased
(shorter “Pulse Delay”). The high and low needle
setpoints on the Photohelic Guage can be adjusted as
the filters season and continuous pulsing occurs. Adjust
both needles upward in 0.5" increments until pulsing
stops. Continue adjustments, when required, until the
high setpoint reaches 6". No further adjustments should
be made above 6" w.g.
SUPRA-VIEW PULSE PANEL
When using the Supra-View panel, the pulsing controls
can be set to “PS” pulse mode (“On-Demand” cleaning
similar to Photohelic control) or “Continuous Clean”
pulse cleaning. The Supra-View includes a cartridge
differential measurement/display, pulse time sequence
controls and a “customer usable” high cartridge
pressure alarm contact in one enclosed assembly. The
high, low and alarm setpoints are adjusted by opening
the enclosure door and adjusting the appropriate
selector switches for desired control. Adjustments to the
setpoints can only be done with the door open. Refer to
the Supra-View Installation and Operation Manual for
adjustment details or refer to the inside of the Supra-
View enclosure door for operating instructions.
SUPRA-I.Q. DIAGNOSTIC PANEL
The Supra-I.Q. Diagnostics Panel can be set to operate
in Continuous Clean, Setpoint Clean (similar to
Photohelic control) or “Auto-tune” Clean mode. Auto-
tune mode is designed to conserve compressed air
usage while maintaining the lowest possible cartridge
differential pressure. It allows the minimal amount of
compressed air usage while maximizing filter life. In
Auto-tune mode, the controller will automatically adjust
the filter pressure to obtain the most cost-effective
setting. Please refer to the Supra-I.Q. Installation and
Operation Manual for a complete listing of operating
parameters and adjustment instructions.
ALL CONTROL OPTIONS
As the cartridge filters become loaded with dust, the
differential pressure across the filters will increase. This
will result in a loss of air volume. Should the dust
collection capture effectiveness be reduced, open the
flow control damper to return the system to the original
design air volume.
6. SERVICE
Before servicing dust collector, note the
following:
1. Disconnect electrical power to the unit and control panel.
2. Close off and slowly bleed the compressed air supply
from the air manifold reservoir. Air manifold reservoir
pressure should be reduced to 0 PSIG (0 BAR).
3. Collected dust may be hazardous. Consult proper
authorities for handling and disposal.
4. Collected dust may be a potential fire hazard.
Welding, grinding or operations involving open
flames should not be performed without fire
protection measures in place. Refer to Section 1
of this manual for additional precautions.
5. Wear appropriate protective clothing when servicing
dust collector.
6. Disposal of collected dust must be according to
federal, state and local regulations and all
appropriate authorities.
6.1 CARTRIDGE FILTER REMOVAL AND
REPLACEMENT
Supra-Max series cartridge filters are the only
replacement filters which provide the superior level
of performance expected from the Supra-Blast dust
collector.
Replacement cartridge filters should be ordered when
the differential pressure is consistently above 6" w.g.
(152 mmAq) or system airflow is inadequate. To order
filters, call the nearest United Air Specialists office listed
on the back cover of this manual.
29
United Air Specialists, Inc.
Supra-Blast
Cartridge Dust Collector
Revised 02/02