Graco E-Flo DC Series Instructions Manual page 32

Operation
Setup Screen Setup Setup Screen Screen 4 4 4
Use this screen to specify how the system will
respond if the pump begins to operate outside of
the pressure and flow settings established on Setup
Sceren 2 and Setup Screen 3. The operating mode
(pressure or flow, set on Setup Screen 1) determines
which fields are active.
Figure 25 Setup Screen 4
Figure 26 Alarm Preference Menu
• / Limit: The pump continues to run and issues Limit: Limit:
no alert.
– Maximum pressure set to Limit: The system
reduces the flow if necessary to prevent the
pressure from exceeding the limit.
– Maximum flow set to Limit: The system reduces
the pressure if necessary to prevent the flow
from exceeding the limit.
– Minimum pressure or flow set to Limit: The
system takes no action. Use this setting if no
minimum pressure or flow setting is desired.
• Deviation: The system alerts you to the Deviation: Deviation:
problem, but the pump may continue to run
past the maximum or minimum settings until the
system's absolute pressure or flow boundaries are
reached.
• Alarm: Alarm: The system alerts you to the alarm Alarm:
cause and shuts down the pump.
32
Setup Screen Screen 4 4 4 Key
Setup Setup Screen
To enable the pressure alarm:
• Line 1 (Pressure Maximum): Select
Limit Limit, Deviation Limit Deviation, or Alarm Deviation
For runaway control, set the maximum
flow to Alarm Alarm. If the flow rate exceeds Alarm
the maximum entered on Setup Screen
3 for five seconds, an alarm symbol
appears on the screen and the pump
shuts down.
• Line 2 (Pressure Minimum): Select
Limit Limit, Deviation Limit Deviation, or Alarm Deviation
To detect a plugged filter or pipe, set
the minimum flow to Deviation
flow rate drops below the minimum
entered on Setup Screen 3, a deviation
symbol
warn you to take action. The pump
continues to run.
To enable the flow rate alarm:
• Line 3 (Flow Maximum): Select Limit
Deviation, or Alarm
Deviation Deviation
To prevent the connected equipment
from excessive pressure, set the
maximum pressure to Limit.
• Line 4 (Flow Minimum): Select Limit
Deviation Deviation Deviation, or Alarm
For runaway control, set the minimum
pressure to Alarm
the pump does not change speed,
but the back pressure falls. When
the pressure falls below the minimum
entered on Setup Screen 2, an Alarm
symbol
the pump shuts down.
To detect a plugged filter or pipe, set
the maximum pressure to Deviation
When the pressure exceeds the
maximum entered on Setup Screen 2,
a Deviation symbol
screen to warn you to take action. The
pump continues to run.
Press to accept the selections.
This softkey is disabled by default, and
only appears if the Profile
checked on
Press to activate the profile just edited.
Figure 27 Setup Screen 4 (In Pressure Mode)
Key
Key
Alarm. Alarm
Alarm. Alarm
Deviation. If the Deviation
appears on the screen to
Limit, Limit
Alarm.
Alarm
Limit,
Limit
Alarm Alarm.
Alarm. If a hose bursts, Alarm
appears on the screen and
Deviation. Deviation
appears on the
Profile Lock Profile Lock box is Lock
Setup Screen 20, page
3A3453H
43.