TeeJet 844-AB, Руководство пользователя

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844-AB Sprayer control 9
Software 4.03
Automatic Calibration
To complete an automatic calibration of the
flow meter, press the Plus and Minus keys
simultaneously. This will clear the existing
value and initiate the calibration procedure.
“CAL” will be displayed in the screen. This
indicates that the controller is ready to
begin the calibration process.
Figure 4-6: Calibration Procedure
CAL
CAL CAL
CAL
0
0 0
0
1 2 3 4 5 6 7 8 9 10 11 12
P
RO
Engage the sprayer pump. Turn the boom
sections “On” and begin spraying a known
volume of fluid (e.g. 100 gallons/400 liters). As
the known amount is sprayed, the console will
count the pulses. After the known volume has
been sprayed, turn the Master Switch “Off” to
stop counting pulses.
Figure 4-7: Calibration Procedure (Continued)
cal cal cal cal
23 23 23 23 2777 2777 2777 2777
1 2 3 4 5 6 7 8 9 10 11 12
P
RO
Press the Program key. The console will ask
for the volume that was sprayed. Use the Plus
or Minus keys to adjust the value to match the
volume sprayed in gallons (liters).
Figure 4-8: Calibration Procedure (Continued)
vol
vol vol
vol 378
378 378
378
1 2 3 4 5 6 7 8 9 10 11 12
P
RO
Press the Program key to return to the Setup
mode. The new flow meter calibration number
will be displayed. To accept the value
displayed, press the Program key again. To
repeat the calibration procedure, repeat the
previous steps.
Figure 4-9: Calibration Procedure (Continued)
615
615 615
615
1 2 3 4 5 6 7 8 9 10 11 12
P
RO
Pressure Transducer Low Pressure
Calibration (P Ref)
The Pressure Transducer Low Pressure
Calibration step is used to calibrate the “0”
pressure setting of the
pressure transducer. The pressure transducer
used with the 844-AB uses a 4-20 mA reading
(4.0 mA represents 0 pressure).