TeeJet 844-AB Sprayer Control - Manual (Page 21)

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98-70007-EN R4
844-AB
No flow alarm
If the 844-AB stops receiving impulses from the flow meter, the
turbine symbol will flash at the top of the display. This indicates that
there is a problem with the flow meter or elsewhere in the system.
This alarm will occur only when the Master boom switch and at least
one boom toggle switch are set to the “ON” position.
Figure 63: No flow alarm
1 2 3 4 5 6 7 8 9 10 11 12
0.00
0.00
5.8
Bar
Km/H
L/Ha
2.223
Ha
Automatic power down
The 844-AB console is designed to power off after 10 minutes of
inactivity. This feature prevents the console from draining the battery
on the sprayer if the operator inadvertently leaves the console
powered on for an extended period. This feature is only enabled
when the Master boom switch is turned “Off” and the console is not
receiving inputs from any of the sensors (the sprayer is inactive).
To manually power down the console, refer to Power off the console.
NOTE: The Automatic power down feature will be disabled any time
the console enters into any programme mode. Programme
modes must be exited first before powering down to ensure
all information is saved to the console’s memory.
Printing
The printing feature is only available on 844-AB consoles that have
been upgraded with the communications package. The 844-AB
communications package is available through authorized TeeJet
Technologies suppliers.
The printout generated by the 844-AB contains information collected
from 844-AB memory. To ready the 844-AB for printing, refer to
Communications in System Setup mode and select either “user prt”
or “cn prt” depending on which report is desired. Exit the mode by
pressing and holding the Programme key for three seconds.
Connect a standard serial port printer to the 844-AB console and
make sure that the printer LED’s are lit, indicating that the printer
has power. Ensure that the console is in Operations mode and the
Master boom switch is set to “Off”. Press and hold the Minus key
for three seconds to begin printing. To reset the values to zero, press
and hold the Plus and Minus keys simultaneously for three
seconds.
NOTE: Printing is available only to those 844-AB consoles that have
been upgraded with the COMMUNICATIONS PACKAGE.
To determine 844-AB console printing capabilities, examine
the left end plate of the console. A communications-ready
console will have an RS-232 pin connector attached to the
left end plate. If the end plate has no connector, the console
has not been upgraded and cannot print.