Model 464 Electronic Pump Control Unit User Guide
Page 8
2.7 Manual Drive/Vent Cycles
The 464 Electronic Control Unit can also be operated manually if preferred. It
provides an alternative if the battery power runs out.
To operate the Control Unit manually, set up and connect the pump, Control
Unit and compressed gas supply (see Section 3.2 Pumping Set Up). Apply the
compressed gas to the Control Unit.
Use the Regulator on the Control Unit to decrease or increase the pumping
pressure. To create a drive/vent cycle, use the Manual Control Button on the
Control Panel. When the Manual Control Button is pushed in, it opens the
solenoid, which allows the compressed gas to be applied to the pump. When the
button is released, it allows the unit to vent.
Figure 2-15 Model 464 Control Panel (125 psi)
Manual
Control Button
Regulator
Air Out
Air In
Battery
Enclosure
Pressure
Gauge
If the battery level is low, the battery warning will be displayed after attempting
to start a drive/vent cycle (Figure 2-16). The battery icon will also be flashing.
Press OK to clear the warning message. It will not be possible to start the vent/
drive cycling with a low battery. Replace the battery or operate the Control Unit
manually using the Manual Control Button to continue (see Section 2.7 Manual
Drive/Vent Cycles).
Figure 2-16 Low Battery Warning
User Flow Rates
LCD Contrast
About
ECU 464 Main Menu
Preset Flow Rates
Battery Low!
Please replace or
operate manually
OK
4:59 Min
0%
2.8 Battery Replacement
NOTE
The maximum output pressure of
the Electronic Control Unit is 125 psi
or 250 psi, depending on the Unit.
NOTE
The “Battery Low!” warning will
appear at about 0% battery level.
This is a conservative battery
level estimation based on normal
operation.
NOTE
If the Control Unit is not cycling
from drive to vent, check the battery
strength. The level should ideally be
maintained at 60% or higher.
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