Great Plains NP4000 40-foot Operator Manual - Manual (Page 32)

28 NP4000 Table of Contents Index Great Plains Manufacturing, Inc.
407-776M Table of Contents Index 2012-03-28
SCS 450: METER CAL
This is the pulse-vs.-rate calibration number for the flow
meter (
in system diagrams in this manual).
Obtain this number from the tag affixed to the meter.
Enter it into the SCS 450 and record on the Calibration
Card.
SCS 450: VALVE CAL
This is the response time calibration number for the
control valve (
in system diagrams in this manual).
Obtain this number from the tag affixed to the valve.
Enter it into the SCS 450 and record on the Calibration
Card.
SCS 450: PRESSURE CAL
This DATA MENU sequence sets zero for the pressure
transducer (
in system diagrams in this manual).
Perform this operation only when lines are at zero
pressure.
SCS 450: RATE 1 CAL
This is your primary desired application rate, typically in
gallons per acre.
SCS 450: RATE 2 CAL
This is your secondary desired application rate, typically
in gallons per acre. If you have no alternate rate
preferred, set this to RATE 1 CAL, so that the control
valve won’t slew if you need to switch to MAN mode.
SCS 450: TANK VOL
Optional. If entered, the liquid fertilizer consumed (as
measured by the flow meter) is continuously subtracted
from this number, and may be used to signal a low tank
alarm. The number needs to be re-entered at each refill.
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