Donaldson Company, Inc.
22
START CLEAN, STOP CLEAN Adjustment
The microprocessor has default settings from the
factory; however, you should establish an initial
setting for filter cleaning to match your system
configuration.
Each light in the bar graph display is equal to
approximately 0.75"wg. The system logic limits
movement of the setpoint, not permitting the
setpoints to overlap. For example, the STOP
CLEAN value cannot be greater than the START
CLEAN, and vice versa.
1. Start the collector, check the filter pressure drop
reading, and set the STOP CLEAN one light to
the right of the initial reading.
2. Set the START CLEAN three lights to the right
of the initial reading. As the filter cartridge
ages, the settings need to be adjusted to
maintain stable pressure drop without
continuous pulsing. Do not set the STOP
CLEAN at the initial reading, as this will clean
down to new filter pressure drop. A dust cake
increases filter efficiency and attempting to
maintain the initial reading uses excess
compressed air.
Service Interval
The service interval is a timed interval, adjustable
from 8 hours, first light illuminated, to 80 hours,
tenth light illuminated. Adjust the interval in 4-hour
increments by bracketing the half step as described
in Setpoint Adjustments. For example, this timer
function can indicate time intervals to empty the
dust containers.
If the light above the Service Interval button will
not light, it is configured to function from an
external switch. See EXT IN 1 for further
information.
