Raven ISOBUS Product Control, Руководство по установке и эксплуатации

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72 ISOBUS Product Control Installation & Operation Manual
2. Enter a meter cal of 1 in liquid or direct injection modes, or density of 1 and spreader constant of 0 in granular
mode, in the Raven ISOBUS product control screens.
3. From the main Raven product control screen, select the “Tally Registers” icon from the softkeys area to display
the total volume tally. Monitor the total volume applied screen while testing the cable
4. Place boom and master switches in the ON position.
5. Use a small jumper wire or paper clip to short the 2 o’clock and 6 o’clock sockets with a “short-no short” motion.
Each time the short is made, the total volume reading should increase by increments of 1 or more.
6. If the distance does not increase, disconnect this section of cable and repeat this test at the next connector
closest to node. Replace defective cable as required and test the flow meter cable voltage as previously
described.
7. If all cables test good, replace the flow meter or encoder.
NOTE: After testing is complete, re-enter correct meter cal numbers.
PROCEDURE TO RECALIBRATE FLOW METER
1. From the Raven ISOBUS main screen, select the tools icon from the softkeys area.
2. Enter a value of 10 [38] for the meter cal value.
3. Return to the Raven ISOBUS main screen and select the tally registers icon from the softkeys area.
4. Enter a value of 0 for the total volume value.
5. Place the master switch and all boom sections in the OFF position.
6. Remove a boom hose and place it into a calibrated 5 gallon [19 liter] container.
7. Toggle the master switch and the boom switch corresponding to the hose that was placed in the container.
Pump exactly 10 gallons [38 liters].
8. Check the total volume registered on the display. The reading displayed is the new meter cal value. This value
should be /- 3% of the calibration number stamped on the tag of the flow meter.
9. Repeat this procedure several times to confirm accuracy (Always “zero out” the total volume display before
retesting).
NOTE: For greatest precision, set meter cal to 100 [378] and pump 100 gallons (378 liters) of water.
10. To verify the flow meter calibration, the fill applicator tank with a predetermined amount of measured liquid
(i.e. 250 gallons).
NOTE: Do not rely on graduation marks molded into the applicator tank.
11. Empty the applicator tank under normal operating conditions.
If the total volume displayed is different from the predetermined amount of measured liquid by more than +/-
3%, complete the following calculation:
Where CMC = the Corrected Meter Cal, MC = the Meter Cal used to apply the known volume, and VM = the
Volume that the VT measured, and VA = the predetermined volume applied.
FOR EXAMPLE:
The VT displays a Total Volume of 260 [984] when a Meter Cal of 720 [190] was used to apply a measured
volume of 250 gallons [946 liters]. Therefore:
CMC
MC V
M
×
V
A
-----------------------
=
CMC
720 260
×
250
------------------------
749 = =