Product Manual

METER COMPONENTS:
Diuser Pad
LCD Display
ON/OFF Button
Battery Cover
+/- Adjustment Buttons
SETTING Button
Target Value Indicator (0%=)
Low Battery Indicator
Nozzle Flow Rate
Units of Measure
Sprayer Speed
Nozzle Spacing
Application Rate per Area
Nozzle Wear / Error
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10˚-15˚
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Fig. 1
INSTRUCTIONS IN ENGLISH | SPRAYER CALIBRATOR MODEL SC-2
02 SpotOn® Sprayer Calibrator Model SC-2 Item #38790
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USE OF PRODUCT:
Turning the Meter ON/OFF
The meter will turn on any time the ON/OFF button is pressed. The meter can be shut o by
pressing and holding the ON/OFF button for 2 seconds or waiting for automatic shuto aer 90
seconds of inactivity.
Changing Measurement Units
With the meter powered on
press the SETTING button until
the desired units of measure
is highlighted, then press the
+/- buttons as needed. When
the correct units of measure are
ashing press the ON/OFF button
to exit setting mode.
INSTRUCTIONS IN ENGLISH | SPRAYER CALIBRATOR MODEL SC-2
Measuring Nozzle Flow Rate
Press the ON/OFF button to turn the meter on. Wait for “- - -“ to show on the display. Place the
meter under the operating nozzle at a slight backward angle of 10° to 15° as shown in Fig. 2 until
the meter displays the ow rate as shown in Fig. 3. Pour out contents before starting another
reading. A press of the ON/OFF button resets the meter to check another nozzle. Readings remain
on the display for 90 seconds before the unit automatically shuts o.
Measuring Nozzle Wear
First determine the desired target ow rate in one of two ways. Best practice is to install a new
nozzle on your sprayer and then measure its ow rate. If this cannot be done, then reference
the nozzle the manufacturer’s ow specications for the nozzles being tested and make sure the
boom pressure matches their ow specication. Select a pressure of typical use or use 40 PSI
(2.76 Bar) to make easy comparisons to manufacturer’s nozzle ow rates. See Fig. 4 for typical
nozzle ow rates. (Please verify this chart with the nozzle manufacturer’s specs before use.)
Second set this desired target nozzle ow rate on the SC-2 by pressing the SETTING button and
adjusting the 0%= target value. Subsequent measurements of nozzle ows will display the actual
nozzle ow and the % error (nozzle wear) compared to the target setting. Nozzle manufacturers
typically recommend replacing a nozzle if the ow rate exceeds that of the new nozzle by 10% or
more.
Determine Nozzle Spacing to use with the SC-2
For broadcast applications with a single nozzle operating at each boom location use:
Nozzle Spacing = Boom Location Spacing (typically 20 inches or 50 cm)
For broadcast applications with twin nozzles operating at each boom location:
If both nozzles can be simultaneously measured with the SC-2 use:
Nozzle Spacing = Boom Location Spacing (typically 20 inches or 50 cm)
If each nozzle must be measured individually use:
Nozzle Spacing = ½ Boom Location Spacing (typically 10 inches or 25 cm)
For single nozzle banding or boomless applications use:
Nozzle Spacing = sprayed band width or swath width in inches or cm
For multiple nozzle directed applications use:
Nozzle Spacing = (row spacing in inches or cm) / (number of nozzles per row)
03SpotOn® Sprayer Calibrator Model SC-2 Item #38790
Fig. 2
Fig. 3
Fig. 4