Operation
5-4
Part 1602966−05
E 2015 Nordson Corporation
Transfer Pump Manual Purging
If a transfer pump becomes clogged during operation, purging the pump
may clear it.
See Figure 5-1. Turn the Purge Control selector switch (8) to the Pump
Purge position while the pump is on. Purge air is applied to the pump as
long as the switch is in the purge position.
Powder Level Sensor Operation
Hopper Operation
See Figure 5-1. When the Powder Source selector switch (10) is set to
Hopper, the lance is moved down into the hopper until the hopper proximity
sensor on the lift cylinder is activated and stops the lance above the
fluidizing plate. When the level of powder falls below the level sensor, a
delay timer (field-adjustable) is started.
When the delay timer runs out, the virgin transfer pump is turned on to refill
the hopper. When the level sensor detects powder, the virgin transfer pump
is turned off. If the level sensor detects no powder for greater than 3
minutes (field-adjustable), the low powder alarm is turned on. Refer to
Section 4, Settings, for instructions on setting the timers.
Box Operation
When the Powder Source selector switch (10) is set to Box, the system
lowers the lance assembly into the box until the level sensor “sees” powder.
As the powder is used, the level sensor automatically lowers the lance into
the box until the box proximity sensor on the lift cylinder is activated and
stops the lance. If the level sensor detects no powder for greater than 3
minutes (field-adjustable), the low powder alarm is turned on.
Silencing the Low Powder Alarm
Turn the Purge Selector switch (8) to Gun Purge momentarily to silence the
low powder alarm buzzer.
Startup
WARNING: Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
Make sure all settings in the Setup section of this manual have been
completed before starting up the system for the first time.
1. Turn on the afterfilter exhaust fan.
2. Turn on power and air to the feed center, if not already on.
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