TO CHANGE UNITS OF MEASURE
The units of measure can be changed to ounces (OZ),
pints (PT), quarts (QT), gallons (GAL), or liters (LITER)
without recalibrating the meter. If special units are
desired, see note below.
1. Hold buttons 2 and 4 for three seconds. Display
will read "7r1.02".
2. Press button 3 . Display will show the current units.
3. To change units, press the ON button repeatedly
until the desired unit is displayed.
4. Press button 2 . Display will read "7r1.02".
5. To return to normal operating mode press button 2
again.
6. The units selected will be displayed. Current or
accumulated total will be changed to reflect the new
units.
Special Units
To use special units, you need to know how many ounces
are in your special unit. Here is an example: You want
to use "acres" as your "special" unit. The fluid is to be
applied at 18 ounces per acre. These are the additional
steps to set the meter to "special" units (ignore steps 4 &
5 above):
1. After selecting "special" in step #3 above, press
button 2 .
2. Enter the number of ounces in a special unit by
pressing button 4 to increment the digit, and the
ON button to move the flashing digit to the right. If
you make a mistake, press button 2 to start back at
the left most digit. Per our example, we would enter
018.0.
3. Press the ON button again. Display will read
"7r1.02"
4. To get back to the normal operating mode, press
button 2 .
Reset Accumulated Total
Press 2 and 4 at the same time and hold for 3 seconds.
2
ON
r1.02
NOT
FOR
RESALE
7
USE
Display will read the version of the software loaded in the
meter (example: "7 r1.02).
APPENDIX - A
3
4
MODEL
820
METER
2. Press ON to display accumulated total. If over 9999,
display will scroll across the screen.
2
ON
NOT
FOR
RESALE
USE
Hold buttons ON and 4 for 5 seconds to reset
accumulated total.
2
ON
NOT
FOR
RESALE
USE
4. Press button 2 twice to get back to normal operating
mode.
METER CHECK
You can check the calibration in your meter.
1. Set to CAL 4 (See "to change the claibration factor").
2. Hold button 4 for 3 seconds. Meter will display
"FLSH".
3. Hold buttons ON & 3 together. A number will
display that indicates the pulses per unit used to
calculate flow (ie: pulses per gallon). When new, this
number is between 120.0-127.0 pulses per gallon.
If you find a number higher than 127, recalibrate with water
(see Appendix-B). If this number is lower than 120, the
meter chamber may need to be replaced.
4. Press 2 to get back to normal operating mode.
FLSH (FLUSH) MODE
The 820 Meter can be flushed without adding to the
totalizer. Turn meter on by pressing the ON button.
Press 4 and hold for 3 seconds. Display will show FLSH.
Flush meter with suitable fluid (water is suitable for most
herbicides). When completed, press 2 to leave FLSH
mode and return to normal operation. Quantity of fluid
flushed will not be added to total.
CAUTION: DO NOT leave the meter in FLSH mode.
Batteries will completely drain within 20 days if left in FLSH
mode.
9
3
4
196.4
MODEL
820
METER
GAL
3
4
000.0
MODEL
820
METER
GAL