GSE 675 - Only Zero Calibration

36 Model 675 User Instructions
3. Press [ENTER] at the Temp Zero? prompt to establish a temporary zero
reference.
4. After establishing the temporary zero reference, the default calibration units
are displayed momentarily followed by the Keyin CalWT prompt.
5. Apply the calibration weight, key in the calibration weight value in terms of the
default calibration units and press [ENTER] to establish span.
5a. If the calibration weight value was entered before the weight was applied, the
display will prompt Add CalWT. Add the calibration weight and press [ENTER].
6. After establishing span, CAL OK? is displayed suggesting that the calibration
is acceptable, or ReCal??? is displayed suggesting that the calibration
procedure should be repeated.
6a. Accept the calibration by pressing [ENTER] at the CAL OK? prompt or [CLR]
at the ReCal??? prompt.
- or -
6b. Repeat the calibration by pressing [CLR] at the CAL OK? prompt or [ENTER]
at the ReCal??? prompt.
7. Once the calibration is accepted in step 6, press [ENTER] at the
ENTER=SAVE prompt and again at the ENTER=EXIT prompt to save the new
calibration and exit the calibration mode.
- or -
7a. To exit the calibration mode without saving the new calibration, press [CLR] at
the ENTER=SAVE prompt. Then press [ENTER] at the ENTER=UNDO
prompt and again at the ENTER=EXIT prompt to exit the calibration mode.
4.3.4 Only Zero
Only Zero is used for zero calibration only. This calibration procedure is primarily used
for the zero reference after changing a scale's dead-load, such as adding safety rails
to a scale deck or installing a mixer motor on a hopper scale. Because the full scale
capacity is referenced from the last zero calibration, performing a zero calibration helps
to ensure that the full scale over-load will not occur prematurely due to the additional
dead-load.
1. Remove all weight from the scale.
2. Access the calibration mode as described on page 33.
3. Select the Only Zero calibration method as described in Calibration Methods
on page 33.
4. Press [ENTER] at the Only Zero? prompt to establish the new zero reference.
5. After establishing zero, CAL OK? is displayed suggesting that the calibration is
acceptable.
5a. Accept the calibration by pressing [ENTER] at the CAL OK? prompt.
- or -
5b. Repeat the calibration by pressing [CLR] at the CAL OK? prompt.