TeeJet ARC-6000 - Manual (Page 10)

ARC 6000 98-05017
Rev.- 1
1-6 CE & S
TANDARD
V
ERSION
1.5. BOOM SECTION “ON/OFF” INDICATORS
The boom section on/off indicators (lower right, labeled “BOOMS”), indicate which boom sections have been selected by
the operator. When a boom has been selected, its indicator will light. Boom position number 1 is to the left. There is a
maximum of nine boom sections available.
1.6. NOT USED
1.7.--STATUS SWITCH
A status switch can be used to override the ARC control. The switch must present a positive voltage (+12.0 VDC) status on
the green (or white) wire of the Boom Interface Cable. So long as this condition is present, the control console will operate
normally. If the voltage is interrupted, the control console will automatically stop controlling. At the same time, the control
console will either "HOLD" or "CLOSE" the control valve, depending on the response selected by the operator. (See Section
2.9.1).
The intent of this feature is to allow the operator to control the operation of the control valve through the normal operation of
the vehicle. The Status switch input may be used to sense the "ON"/"OFF" condition of the main vehicle pump switch, a
separate Status switch, or, an external switch may sense an implement "UP"/"DOWN" condition. The Status switch can
often be used to lessen the operator's work load.
1.8. GROUND SPEED OVERRIDE (GSO) SWITCH
If the ARC system was purchased with an optional MID-TECH boom switch box, the Ground Speed Override switch is
already installed. If a MID-TECH switch box is not used to control the booms, an optional externally mounted Ground
Speed Override switch can be used to temporarily operate the sprayer (or spreader) using a pre-selected Minimum "(GSO)
Speed" rather than the actual speed registered by the Ground Speed Sensor. The override feature is used to bring the
applicator on line quickly when starting from a dead stop or to maintain an adequate application pattern when the vehicle is
maneuvering at very low ground speeds. It can also be used to allow the operator to flush or empty the vehicle from the cab,
while stopped.
The control console operates normally so long as the Ground Speed Override switch condition is open (OFF). Whenever the
Override switch is closed (ON) and the actual ground speed is less than "GSO Speed", the control console automatically
selects the "GSO Speed" value to control application rate. As soon as the switch reverts to its normally open (OFF) condi-
tion, or the actual ground speed increases above the preset "GSO Speed", the control console will adjust the rate on the basis
of the actual ground speed.
CAUTION: Controlling application rates based on "GSO Speed" is not as accurate as using the actual ground speed.
When Ground Speed Override is being used and the true ground speed is less than the "GSO Speed", the console will
sound a warning beep and the display will flash a "Too Slow" message to warn the operator of over application.