Doran GuardianXL, Инструкция по установке и эксплуатации

Страница: 46 / 87

45
CAL: Load Span
Span calibration routine. Pressing ZERO initiates the zero calibration. Zero
calibration can be bypassed by pressing either GROSS/NET (
) or TARE ( ).
If a SIGNAL TOO LOW or EXCESS SIGNAL message appears, the scale is
either not receiving the correct load cell signal or an incorrect test weight was
entered. Refer to the raw counts mode in Chapter 4, Scale Test Mode and
correct before calibrating again.
GuardianXL Calibration Examples
Example 1 Hopper Calibration: Consider a hopper filled with 10,000lb. A zero
calibration could be performed with a full hopper. Then a known amount of corn could
be removed, (for example; 1000lb) and a span calibration performed. Later, when the
hopper is empty, the calibration zero can repeated and the calibration process is complete.
Example 2 User Units Calibration: Setup and calibrate the scale using standard units such
as pounds. Set CAL: UNITS parameter to user. Set count by to desired user units count
by. Enter the capacity in user units.
Using a 20LB scale, the customer wishes to display weight in percent. First calibrate the
scale for 20LB using pounds mode. Go to the count by menu and set it for 0.01. Go to
the capacity menu and set it to 100.00. Press menu. You can now switch between any
active unit and user units.
Example 3 Units Count By Check: An important feature of the GuardianXL is the ability
to change units once configuration has started. Let’s take our previous example, of the
20lb scale. If the customer requested a scale to have a 20lb capacity with a 0.2oz count
by you would normally convert the ounces count by to a pounds equivalent and verify the
ounces count by after calibrating in pounds. In the
GuardianXL , you would set the count
by and decimal point location with CAL: Units set to ounces. Once the desired ounces
count by is set, return to the CAL: units menu and select pounds to calibrate in pounds.
While in the pounds mode, enter the 20lb capacity. The
GuardianXL will automatically
convert the ounce based count by and decimal point selection to the equivalent pound
value.