Specification sheet
15 Nov 2026
Aczet · Ultra Micro Balance
UCM Series Touch Screen Ultra-Micro Balance
The Aczet UCM 2A is a touch screen ultra-micro balance with 2.1 g capacity and 0.1 µg (0.0001 mg) readability. Its brilliant Mono-Tech weighing sensor sits in a separate mechanical unit, away from the 5.7" touch screen terminal, so the electronics do not warm the weighing cell. Perfect Self Auto Calibration (PSAC) adjusts it automatically with its built-in weight when the temperature changes or a set time has passed, and an infrared sensor lets you start weighing with a wave of the hand. Ten built-in applications and ISO / GLP / GMP compliant records make it ready for pharma, food, chemical, research and environmental laboratories.
Overview
The Aczet UCM-A Series Ultra-Micro Balance (model UCM 2A) is made for the weighings where a few micrograms decide the result: very small, expensive, rare or toxic samples, standards, filters and low-dose preparations. It weighs up to 2.1 g with a readability of 0.1 µg, so the display shows seven decimals in grams.
Two-unit design
The balance consists of two components: one holds the electronics and the other holds the precise mechanical measuring cell. According to Aczet, this separation removes the effect of heat from the electronics on the microbalance. The weighing chamber is a glass draft shield with a 16 mm diameter pan.
Touch screen and hands-free weighing
5.7" touch screen display with built-in applications for pieces counting, percent weighing, formulation, filling, check weighing and statistics.
Infrared sensor: you can operate the balance with a wave of your hand, so you can concentrate on a valuable or toxic sample without touching the balance.
Weighing results in many units, including g, mg, ct, GN, oz and dwt.
Stable and traceable
Brilliant Mono-Tech weighing sensor built to match high international standards.
Perfect Self Auto Calibration (PSAC): motorised internal calibration with a built-in weight, started when the ambient temperature changes by a set value or a set time has passed.
Built-in clock and records for ISO / GLP / GMP compliance, with a USP compliance mention in the datasheet.
RS 232C interface with optional USB (Windows direct communication) for data transfer; optional password protection of the menu.
Where it is used
Aczet names the pharma, food, chemical, research and environmental industries as the typical users. Micro balances are sensitive to their surroundings, so the installation place should be chosen carefully, and optional accessories such as an anti-vibration weighing table, the CI-01 antistatic ionizer, a dot matrix data printer and test weights are available from Aczet.
Tell our team what you weigh and how much, and we will help you choose the right balance and share the full datasheet.
Specifications across the series
These are ranges for the whole line. Exact values depend on the model: please check the brochure or ask our team.
| Model | UCM 2A |
|---|---|
| Weighing capacity (g) | 2.1 |
| Readability (µg) | 0.1 |
| Minimum load (µg) | 10 |
| Repeatability (sd) (µg) | 0.3 |
| Linearity (µg) | ±1.5 |
| Tare range (subtractive) | Full capacity |
| Minimum sample weight, U = 1 %, k = 2 (mg) | 0.1 |
| Minimum sample weight, as per USP (mg) | 1 |
| Pan size (mm) | Ø 16 |
| Weighing chamber (mm) | Ø 75 × 86.5 (H) |
| Response time (sec.) | 8 - 10 |
| Display | 5.7" touch screen display |
| Calibration and adjustment | Motorised internal calibration (PSAC) |
| Units of measure | gm, mg, ct, GN, mo, oz, dwt, t1T, t1H, t1S, mom, Bat, MS |
| Application modes | PCS, % weighing, determination, formulation, automatic statistic calculator etc. |
| Interface | RS 232C, optional USB (Windows direct communication) |
| Operating temperature (°C) | 18 to 30 |
| Sensitivity drift (ppm/°C) | ±2 |
| Power supply | A/C adaptor 230 V or 115 V ±20 %, 50 - 60 Hz |
| Compliance | ISO, GLP / GMP, USP |
| Electronic box, W × D × H (mm) | 240 × 210 × 65 |
| Mechanical box, L × W × H (mm) | 360 × 140 × 146 |
| Weight, net / gross (kg) | 10.20 / 14.70 |
Key features
- 0.1 µg readability up to 2.1 g Ultra-micro resolution with seven decimals in grams, for very small, rare or toxic samples.
- 5.7" touch screen terminal Operate the balance and its built-in applications on a touch screen that sits apart from the weighing unit.
- Two-unit design The electronics and the precise mechanical measuring cell are separate components, which removes the heat of the electronics from the weighing cell.
- Perfect Self Auto Calibration (PSAC) Motorised internal calibration with a built-in weight starts by itself after a temperature change or a set time.
- Infrared hands-free sensor Start weighing with a wave of the hand, so you never have to touch the balance while handling a valuable or toxic sample.
Key advantages
- Very small samples, readable Weigh down to a few micrograms and still read the result to 0.1 µg.
- Always calibrated PSAC keeps the balance adjusted when the room temperature or the time changes, without a manual routine.
- Safer sample handling The infrared sensor means less touching of the balance while you work with toxic or expensive material.
- Ready-made workflows Ten pre-programmed applications such as filling, statistics, check weighing, percent weighing and formulation reduce routine work.
- Compliant records The built-in clock supports ISO / GLP / GMP documentation, and data can leave through RS 232C or the optional USB interface.