Tru-Test EC-10 User Manual page 14

Months
(Northern hemisphere)
Winter (October/March)
April
May
June
July
August
September
Some equations may change without notice and are influenced by
seasonal differences. If you are unsure of the current equation contact
Dairy NZ or your local consultant.
To enter your own cover equation or one that may have been recommended by a
third party, such as your consultant or Dairy NZ or Beef + Lamb NZ, please do the
following:
1 While the plate meter is switched on, hold down the "MENU" button. The
display looks like this: "F--d". Press the UP arrow once to change the "d"
(default to "c" (custom). Press "Enter" and the display will show the first
figure of the current "add" equation and may look like this: "0_ _ _". This is
the first of two numbers you will enter. The first number is the equation
"add" number and the second the "multiply" number. e.g. in the equation
above, the number (115) is the "multiply" number and (850) is the "add"
number.
10
Plate meter equations
(Dairy pastures)
Plate meter reading x 140 + 500 (factory default)
Plate meter reading x 115 + 850
Plate meter reading x 120 + 1000
Plate meter reading x 140 + 1200
Plate meter reading x 140 + 1200
Plate meter reading x 185 + 1200
Plate meter reading x 170 + 1100