Speed Sensor Cables; Testing Speed Sensor Extension Cables - Raven SCS 440 Installation & Service Manual

6. Turn ON the Master switch and pump exactly 10 gallons [38 liters] of water. The TOTAL VOLUME readout is the
new METER CAL number. This number should be within +/- 3% of the calibration number stamped on the tag
of the flow meter.
7. Zero out the TOTAL VOLUME value and repeat the procedure several times to verify the accuracy of the new
METER CAL value.
8. Verify the flow meter calibration.
a. Fill the tank with a predetermined amount of measured liquid (e.g., 250 gallons).
IMPORTANT: Do not rely on the graduation numbers molded into the applicator tank - measure the liquid.
b. Empty the tank under normal operating conditions.
c. Check the TANK VOLUME value. If the number displayed is different from the predetermined amount of
measured liquid by more than +/- 3%, perform the following calculation:
METER CAL x TOTAL VOLUME
Predetermined amount of measured liquid
FOR EXAMPLE:
METER CAL Value
TOTAL VOLUME Value
Predetermined amount of measured liquid
720 x 260
250
[190] x [984]
[946]
9. Enter the adjusted METER CAL value before resuming application.

SPEED SENSOR CABLES

TESTING SPEED SENSOR EXTENSION CABLES

1. Disconnect the extension cable from the speed sensor assembly cable.
Manual No. 016-0159-822 Rev E
PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING
Adjusted METER CAL
=
value
= 720 [190]
= 260 [984]
= 250 [946]
= 749 (English)
= 198 (metric)
49