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5477Y1 Sentinel Row Control Manual
©2022 SurePoint Ag Systems 50
4/29/2022
Sentinel Row Control Troubleshooting
Section Test or Manual Section Valve Operation and Manual Pump Operation
To operate the Section
Valves manually, press
Manual Section
, then
press any section button
to turn the valve off/on.
To test the valves sitting
still, put
DUTY CYCLE to
MAN, MASTER
must be
ON, and there must be a
SPEED
entered to actual-
ly open the valve.
To run the pump while
doing this, enter a num-
ber for the Duty Cycle %.
The Flow (GPM) and
Pressure
should
be
steady. Adjust DC%.
AUTO Test Operation
1.
Enter a
SPEED
(tap the box and enter).
2.
Select a
RATE.
3.
Master ON.
May need to turn Auto Section
Control off. Height switch down if using.
4.
Adjust SPEED and RATE to test range.
5.
Observe Flow (GPM), Pressure, and Duty
Cycle %. On hydraulic pump observe RPM.
6.
When testing with water, the pressure will be
much less than it will be with a heavier fertiliz-
er. You may have to increase the rate signifi-
cantly to open all the check valves so all rows
will flow.
7.
You can go to Manual Section (on the top
row) and close some sections to see system
response.
8.
If Duty Cycle / Rate / Flow oscillate and won
’
t
lock in, decrease the Control Speed on the
Setup Tab (adjust electric pump by 500, hy-
draulic by 50). Adjust Control Speed as need-
ed for best field performance. (In some cases,
the Control Speed for the row valves may
need to be adjusted.)
System Won
’
t Run
1.
Is MASTER ON? Is there a SPEED? Is there a RATE? Switch Section Control from AUTO to MANUAL.
2.
On
Hardware
screen, uncheck TASK CONTROL. If you have TASK CONTROL checked on the Sentinel,
Task Control must be activated and turned ON on the display software.
3.
Verify settings for Master Switch and Implement Switch. If these boxes are checked, these items must be
plugged into the Sentinel harnessing, not into harnessing for another control module. If using an IMPLE-
MENT SWITCH for Sentinel, is the orientation correct (check arrow on MASTER ON button)?
4.
If there is a DC% showing, but the pump is not running, check the hydraulics or the EPD on an electric
pump system. Verify there is voltage on the 2
-
pin PWM Connector.
Manual Section Control:
Press to turn row ON or OFF.
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Ag
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