Holtgreven GSE-375 - Manual (Page 71)

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F ALSE Z ERO
False Zero calibrates the Model 370/375 without removing the current gross weight. This is
particularly useful in tank weighing applications where it may be both time consuming and costly
to completely empty the tank. This operation is achieved by establishing a false (temporary zero)
zero reference. Test weights may then be added to verify calibration. The zero reference
determined during the last calibration is not affected.
False Zero Calibration Without Removing Existing Load Example (370):
1. Press [ZERO] + [SELECT].
DISPLAY READS Setup
2. Press [ZERO] [PRINT] [UNITS] [TARE].
DISPLAY READS Fast ~ Cal~First ~ Zero? ~ 5075.
3. Press [SELECT] [SELECT].
DISPLAY READS False ~ Zero? ~5075.
4. Press [TARE] to establish false (temporary) zero.
DISPLAY READS Units ~ =lb
5. Pause to display calibration units.
DISPLAY READS Enter ~ Load? ~ 00.
6. Place a 2500lb test weight on scale.
DISPLAY READS Enter ~ Load? ~ 2510.
7. Enter 2500.
DISPLAY READS 2500
8. Press [TARE] to establish span.
DISPLAY READS 2500.
9. Pause for motion delay.
DISPLAY READS Cal ~ Good? ~ 2500.
10. Press [TARE] to accept calibration.
DISPLAY READS Enter ~ =Stor
11. Press [TARE] to save calibration.
DISPLAY READS Enter ~ =End
12. Press [TARE] to exit calibration.
DISPLAY READS 5055.
13. Remove the calibration weight.
DISPLAY READS 00.
False Zero Calibration Without Removing Existing Load Example (375):
1. Press 100 [SELECT].
DISPLAY READS Setup
2. Press 54321 [SAMPLE/Enter].
DISPLAY READS Fast ~ Cal~First ~ Zero? ~ 5075.
3. Press [SELECT] [SELECT].
DISPLAY READS False ~ Zero? ~5075.
4. Press [SAMPLE/Enter] to establish false (temporary) zero.
DISPLAY READS Units ~ =lb
5. Pause to display calibration units.
DISPLAY READS Enter ~ Load? ~ 00.
6. Place a 2500lb test weight on scale.
DISPLAY READS Enter ~ Load? ~ 2510.