Great Plains NP30A 30-foot Operator Manual - Manual (Page 45)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 41
2014-05-20 Table of Contents Index 407-502M
SCS 450: SPEED CAL
A speed sensor connection to the Raven SCS 450 is
required. Perform a calibration per the manuals for the
sensor and the SCS 450.
A speed sensor input allows the SCS 450 to determine
and control application rates at arbitrary field speeds.
Note: The Great Plains Raven AccuFlow™ and SCS 450
bundles do not include a speed sensor, nor the
cable necessary to connect a Raven-compatible
sensor or radar to the SCS 450 See page 130 for
an available radar kit. See page 140 for harness
cables available from Great Plains or Raven.
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 it 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 it on the Calibration
Card.
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 NH
3
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.
SCS 450: TIME
Optional. The SCS 450 (which is always in 24:00 hour
time format) defaults to 00:00 (and resets to that after 10
days of inactivity). You may use this menu to set the
actual time.
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