Specification sheet
13 Nov 2026
Sartorius · Ultra-Micro Lab Balances
Cubis II Ultra-Micro Balance
The Sartorius Cubis II ultra-micro balance weighs up to 2.1 g with a readability of 0.1 µg (0.0001 mg). It is built on a modular premium platform: you choose the display (MCA 7-inch colour touchscreen or MCE touchscreen), the draft shield (motorized round glass, or manual stainless steel for filter weighing) and the software. Automatic internal adjustment (isoCAL), guided weighing applications and built-in data integrity controls make it suited to the most demanding weighing work in research, pharma and quality control laboratories.
Overview
The Sartorius Cubis II Ultra-Micro Balance is the finest-resolution balance of the Cubis II modular premium range. Its 2.7S weighing module has a capacity of 2.1 g and a readability of 0.1 µg (0.0001 mg), with a typical repeatability of 0.15 µg and a typical linearity deviation of 0.7 µg. It is made for work where a few micrograms matter: weighing filters and membranes, preparing reference standards, particulate and gravimetric analysis, and low-dose pharmaceutical testing.
One weighing module, five ready combinations
MCA2.7S-2S00-M: MCA display with a motorized round glass draft shield.
MCA2.7S-2S00-F: MCA display with a manual stainless steel draft shield for weighing filters.
MCE2.7S-2S00-M: MCE display with a motorized round glass draft shield.
MCE2.7S-2S00-F: MCE display with a manual stainless steel draft shield for weighing filters.
MCA2.7S-M-MTS: MCA display, motorized glass draft shield and the QP99 software package.
Optional accessories for the F draft shield include titanium filter weighing pans (52 mm and 75 mm) and a safe-lock tube holder for reaction tubes up to 2 mL, so the same balance covers filter weighing and small-volume sample work.
Display and software
The MCA has a 7-inch colour touch display with an intuitive interface, a set of basic weighing applications and optional licensable QApp packages for specific applications. The MCE has a touchscreen for routine weighing and the factory-installed basic applications, without licensable packages.
Built for stable results
Monolithic weighing system with a fast typical measurement time of 10 seconds.
Glass draft shields with a conductive coating protect the sample from outside electrostatic effects.
Automatic internal adjustment (isoCAL) and automated motorized levelling for easy, error-free operation.
Technical controls for 21 CFR Part 11 compliance, an integrated audit trail and user management, available directly on the balance.
An ultra-micro balance needs a calm place: away from heat, direct sunlight, drafts, vibrations, heavy foot traffic and strong electromagnetic fields. Our team can help you choose the right combination and plan the installation.
Technical specifications
| Model | MCA2.7S-2S00-M, MCA2.7S-2S00-F, MCE2.7S-2S00-M, MCE2.7S-2S00-F, MCA2.7S-M-MTS |
|---|---|
| Weighing module | 2.7S |
| Readability (mg) | 0.0001 (0.1 µg) |
| Weighing capacity (g) | 2.1 |
| Pan size (mm) | Ø 20 (standard) / Ø 50 (filter pan) |
| Repeatability up to 5% load (mg) | 0.00015 typical (0.0002 tolerance) |
| Repeatability near Max (mg) | 0.00018 typical (0.00025 tolerance) |
| Linearity (mg) | 0.0007 typical (0.0009 tolerance) |
| Eccentric loading, 1 g test weight (mg) | 0.0005 typical (0.0007 tolerance) |
| Sensitivity drift, +10 °C to +30 °C (ppm/K) | 1 |
| Stabilization time, typical (sec.) | 7 |
| Measurement time, typical (sec.) | 10 |
| Minimum weight, USP (mg) | 0.082 optimum / 0.3 typical |
| Calibration and adjustment | Internal, automatic (isoCAL) |
| Recommended external test load (g) | 2 (class E2) |
| Display | MCA: 7" colour touch TFT / MCE: TFT touchscreen |
| Draft shield | M: motorized round glass / F: manual stainless steel (filters) |
| Interfaces | RS232 (9-pin), USB-A, USB-B |
| Power supply | 100-240 V, 50-60 Hz |
| Weighing module size, L × W × H (mm) | 340 × 139 × 129 |
Key features
- 0.1 µg readability, 2.1 g capacity The 2.7S weighing module reads to 0.0001 mg with a typical repeatability of 0.15 µg, for the finest weighing tasks in the lab.
- Modular premium platform Choose the MCA 7-inch colour touchscreen with optional QApp software, or the MCE touchscreen for routine weighing, and match the draft shield to your work.
- Motorized glass or filter draft shield The M shield is a motorized round glass shield with a learning function; the F shield is a manual stainless steel shield for weighing filters up to 50 mm.
- Automatic internal adjustment (isoCAL) The balance adjusts itself after a temperature change of 1.5 K or after 12 hours, so results stay reliable without manual calibration routines.
- Data integrity and 21 CFR Part 11 controls Integrated audit trail, user management and technical controls for 21 CFR Part 11 compliance help regulated laboratories meet their requirements.
Key advantages
- Right balance for every job Choose the display, draft shield and software you need today and the platform that fits the way your lab works.
- Fast, stable weighing Typical stabilization time of 7 seconds and typical measurement time of 10 seconds keep ultra-micro weighing efficient.
- Protection from charged samples Conductive-coated glass draft shields reduce the effect of electrostatic charges on the result.
- Ready for regulated work Audit trail with 300,000 data points, alibi memory for 300,000 records and user management are built in.
- Easy to operate Guided workflows (QApps), automated motorized levelling and a teachable draft shield reduce mistakes and training time.
- Built to last Die-cast aluminium, stainless steel and Optiwhite float glass construction suited to a precision laboratory.