Tone TOUCH 02, Оригинальное руководство пользователя

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CALIBRATION
Press the calibrate key. A ‘calibration Password’ screen with keypad
will be displayed. Type in the 4 digit service password (3926). The
number will display in the blank area in the upper right side of the
screen as you type it. Press enter. CLR will clear entry without exiting
the screen. Pressing cancel will exit the screen.
The calibrate screen will display. Items that are not installed or
that have been disabled in the parameters section will be greyed
out. Other items may be calibrated to ensure brewing accuracy.
Only the items for which calibration is desired need be addressed.
NOTE FOR TECHIES – Due to inaccuracies inherent in some graduated measurement vessels, weighing the water
dispensed can be a more accurate method to determine volume dispensed. Water density varies with tempe-
rature however. If weighing in ounces, water is closest to a 1 to 1 ratio of ounces in weight to fluid ounces at
brewing temperatures (190-205F). It is safe to say for hot water dispensing that 1 oz weight on scale is (nearly)
equal to 1 fluid ounce of volume. Cooler water is denser however so a fluid ounce of water dispensed at ambi-
ent temperatures will weigh more than an ounce, about 1.04 ounces weight. A fluid ounce of water will weigh
approximately 0.96 ounces so multiplying the scale weight by .96 will yield the volume in fluid ounces. If using the
metric measurement system, water weight and volume will be closer to unity at room temperature in regards to
grams and milliliters. At brew temperatures, a scale reading in grams should be multiplied by 1.04 to get volume
in milliliters.