Model 675 User Instructions 33
4 Calibration
The calibration mode is accessible through the configuration menu or from the weigh
mode.
4.1 General Notes on Calibration
l Pressing [CLR] at any point in the calibration routine moves back one step.
l Pressing [CLR] at the New Zero? prompt exits calibration mode.
l A calibration weight can be applied before or after entering the calibration
weight value. The display prompts you to Keyin CalWt (key in calibration
weight) or Add CalWT (add calibration weight) at the appropriate time.
l The digital filter is automatically set to 4 seconds during calibration.
l A motion delay is enforced during zero and span calibration.
l New calibration values are not permanently saved until the calibration mode
is exited and changes are saved by pressing [ENTER] at the ENTER=SAVE
prompt. If power is lost during calibration, the previously saved calibration
values will be in effect when power is restored.
l If replacing one scale with another, it is possible to set the total gain value
(P61108) of the new scale with that of the original. This will optimize the
coarse and fine gain values, greatly increasing the likelihood of a successful
calibration on the first attempt.
4.2 Access Calibration
4.2.1 From APW Lookup or Quick Count Mode
1. From the main menu press the [F5] (Setup) key.
2. Press [F4] (Setup Menus) key.
3. Press [F1] (CAL) key.
4. Enter the access code and press [ENTER].
4.3 Calibration Methods
There are six methods of calibration. Press [SELECT] to select a calibration method.
Press [ENTER] to begin the calibration method selected. Refer to the appropriate
section for calibration instructions.
l New Zero - Establishes a new zero (no load) and span (test load) calibration
reference.
l Last Zero - Performs a span re-calibration without removing the test load.
This selection is not available with linearization enabled.
l Temp Zero - Performs a calibration without removing the current gross
weight. The zero reference determined during the last calibration is
maintained. This selection is not available with linearization enabled.
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