Sartorius Quintix User Manual download pdf (Page 66)

Calibration and Adjustment

User Manual for Secura, Quintix, Practum

Calibration and Adjustment

Background During calibration, a calibration weight is used to determine how much the

displayed value deviates from the actual measurement value. This deviation is

compared to a specified desired value. Adjustment eliminates this deviation or

reduces the permissible error limits.

For Secura

, Quintix

, and Practum

models, calibration and adjustment are

combined as one process. The balance is automatically adjusted after each

calibration.

Before using a verified balance for legal metrology, calibration/adjustment must

always be carried out at the balance placement station. This can be performed

automatically or manually. Practum

models with accuracy class (I) can be

calibrated using an external weight.

When and How Often To achieve the highest accuracy possible, regularly calibrate and adjust the balance:

– daily after switching on the balance,

– each time the balance is leveled,

– each time ambient conditions have changed (temperature, humidity, or air

pressure),

– each time the balance is set up at a new placement station or moved on its

current station.

The following describes in detail the available options for calibrating and adjusting

the balance:

– Calibration/Adjustment using an internal calibration weight (Secura

and

Quintix

only)

– Calibration/Adjustment using an external calibration weight

– Automatic calibration/adjustment with isoCAL

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Sartorius Quintix User Manual Page 66