Lincoln Electric CCHD1000 Safety Instruction For Use And Maintenance page 15

8695 8420 / A
Saturation alarm
The unit has an alarm system that monitors the cartridge saturation condition. The pressure difference through the
cartridges is continuously monitored. When the limit value of the pressure difference is reached, a safety indicator
on the UI screen is displayed and a fault is logged. In that case, the metal pre-filters and filter cartridges must
imperatively be inspected.
ON-LINE cleaning at a programmed threshold
The pressure difference through the cartridges is continuously monitored. When the difference exceeds the
permitted negative pressure limit, the cartridge cleaning cycle starts.
Once cleaning is complete, a check validates the vacuum after cleaning if it is adequate.
If the vacuum drops below the limit value, the Online unclogging cycle stops; otherwise, a new cleaning cycle starts
again.
This cycle makes it possible to extend the life of cartridges. When the cycle no longer makes it possible to achieve
the normal operating value, that means that the cartridges must be changed imperatively.
The benefits of this mode are as follows:
— Reduced cartridge wear and tear
— Reduced air consumption
— Reduced maintenance
— Constant head loss in the filter
— Reduced noise
OFF-LINE cleaning
This system makes it possible to clean the cartridges when the fan stops, and allows deep regeneration of
cartridges. The number of cycles can be programmed in the Unclogging page of the UI. A number of 1 to 9 cycles
is recommended.
This type of cleaning is required with all applications and guarantees the proper working of the installation.
By back blowing the cartridges with an air flow and shock wave combination, most of the particles are removed
from the cartridges and these fall into the recovery hopper and dust drum.
Information about the high-vacuum unit
— Compressed air pressure: nominal working pressure 4.5 bar; max. 5.5 bar
— Compressed air connection: coupling with 1/2" inner diameter – Diameter 16mm.
— Compressed air consumption: tank with 22 litres of air at atmospheric pressure for consumption of 6/7L per
pulse depending on the set operating pressure.
CCHD
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