The Cubis® II Ultra-High Resolution Balances from Sartorius are precise analytical instruments used to weigh very small quantities of samples with high precision. The performance in a lab environment often deviates from instrument specifications due to varying environmental conditions and influences deriving from samples and users. The higher the resolution, the greater the relative measurement uncertainty is. Needless to say, these devices are particularly sensitive to imperfect laboratory conditions. The goal was to build a balance which is less prone to environmental effects, resulting in faster weighing workflows yet improved specifications.
Display
MCA Advanced User Interface
Draft Shield Type
Draft Shield D
Manual glass analytical draft shield chamber, with smooth-action doors that open wide and provide unimpeded access to the weighing chamber
Scale Interval (d)
0.001 / 0.01 mg
Maximum Capacity
12 / 61 g
Repeatability at 5% Load
Standard Deviation of the Load Values, tolerance
0.002 mg
Repeatability Near Max
Standard Deviation of the Load Values, tolerance
0.01 mg
Standard Deviation of the Load Values, typical value
0.006 mg
Linearity Deviation
Tolerance
0.02 mg
Typical Value
0.008 mg
Deviation at Eccentric Loading, Positions According to OIML R76
Test Weight
20 g
Tolerance
0.03 mg
Typical Value
0.012 mg
Sensitivity Drift Between +10°C and +30°C
1 ppm/K
Tare Maximum Capacity: Less Than 100% of Maximum Capacity
Accuracy Class According to Directive 2014 / 31 / EU
I
Verification Scale Interval (e) According to Directive 2014 / 31 /EU
1 mg
Minimum Load (Min) According to Directive 2014 / 31 / EU
0.1 mg
Minimum Weight According to USP (United States Pharmacopeia), Ch. 41 and Ph. Eur. 2.1.7
Optimum Minimum Weight
0.82 mg
Typical Stabilization Time
2.5 / 3.5 s
Typical Measurement Time
6 / 10 s
Recommended Calibration Weight
External Test Load
50 g
Accuracy Class, According to OIML R111-1
E2
isoCAL
Temperature Change
1.5 K
Time Span
12 h
Dimensions
Weighing Module (L x W x H) *
510 mm x 240 mm x 302 mm
Weighing Pan Size
ø 50 mm
Approximate Weight *
15 kg
Interfaces
USB-A, USB-B, USB-C
Installation Conditions
Suitable for the weight of the device and the associated components
Stable, fully flat, even, low vibrations
Not directly against a wall
No heat from heating systems or direct sunlight
No drafts from open windows, AC systems, or doors
No vibrations
No "heavy traffic" areas (personnel)
No electromagnetic fields
No dry air
* Depending upon weighing pan size, filter weighing pan, and draft shield
