Sartorius Cubis Series Operating Instructions

Cubis MSE Operating Instructions 33
Operation
Calibration and Adjustment
Purpose
Adjustment is the correction of the difference between the measured value
displayed and the true weight of a sample, or the reduction of the difference to an
allowable level within maximum permissible error limits�
Using a verified balance in legal metrology:
Before use in legal metrology, the “internal calibration" function should be carried
out at the installation location�
Features
The adjustment procedure should only be started when
– The balance is unloaded
– The balance is tared
– The weighing signal is stable
– The sensitivity of the balance can be corrected a max� of 2%�
– Adjustment with a Sartorius density determination kit YDK… is possible�
– Balances with motorized leveling feet are leveled automatically prior to each
new calibration/adjustment (menu setting: device: extras: level: auto.)
If these settings are not made, the error message “Err 02" appears�
Adjustment can be made using different weight units:
CAL.UNIT - grams, Kilogr (not for verified models)
– You can also configure the mass comparator to perform calibration/adjustment
automatically (isoCAL), when the preset time or temperature limit has been
exceeded�
External calibration for verified balances of accuracy class K
– When the balance is used in legal metrology, external calibration is blocked
as follows:
– The menu access switch is locked
– The menu access switch cap is sealed
To block calibration/adjustment:
– Select Cal./Adj. - Blocked
– Close the menu access switch on the back of the balance
Calibration and adjustment results can be printed in an ISO/GLP-compliant
printout: settings and printout templates are listed starting on page 62�
Application parameters are deleted after calibration/adjustment�
Internal Calibration
In the operating menu, select Cal./Adj. -Cal.Int.�
The balance housing has a built-in motorized calibration weight�
§ Select Calibration/Adjustment: Press the C key
> The internal calibration weight is loaded automatically
> The balance is adjusted
> The internal calibration weight is removed

Sartorius Cubis Series Specifications

General

Display	Color touch screen
Readability	0.01 mg to 1 g
Interfaces	USB, Ethernet, RS-232
Calibration	Internal and external
Housing	Die-cast aluminum
Response Time	Varies by model
Pan Size	Varies by model
Operating Temperature	10°C to 30°C
Compliance	GLP
Power Supply	100 – 240 V, 50/60 Hz
Capacity	Varies by model (up to 64 kg)
Repeatability	Varies by model
Linearity	Varies by model