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Analytical microbalance 6-digit

Ultra-high-resolution microbalance with 0.001 mg readability, engineered for micro-weighing applications requiring exceptional accuracy.
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Analytical microbalance 6-digitR311A0731
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This microbalance delivers ultra‑high precision and exceptional reliability for demanding laboratory tasks where extremely small mass differences must be detected, making it ideal for research applications across pharmaceutical, chemical, biological, medical, and material science environments. With a maximum capacity of 6.1 g and a readability of 1 µg, it enables accurate measurement of minute samples useful for micro CHNS elemental analysis

The balance is engineered with a highly stable weighing system and internal automatic adjustment, ensuring consistent, repeatable results even under varying environmental conditions, while the semi‑automatic levelling system simplifies setup and reduces the likelihood of user‑induced error. Its spacious weighing chamber and precisely calibrated pan support delicate handling and minimize external disturbances during measurement.

A large, intuitive 10‑inch colour touchscreen provides clear visual feedback, streamlined navigation through functions and menus, and enhanced user interaction, helping to make routine high‑precision weighing tasks efficient and accessible.

In addition, its versatile functionality supports traceable measurements, efficient workflows, and compliance with laboratory standards, making it an indispensable tool for labs that prioritize accuracy and repeatability at the microgram scale.

Models

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Technical Data

Metrological parameters
Maximum capacity [Max]

6.1 g

Minimum load

0.1 mg

Readability [d]

1 µg

Verification unit [e]

1 mg

Tare range

-6.1 g

Standard repeatability [5% Max]

0.8 µg

Standard minimum weight (USP)

1.6 mg

Standard minimum weight (U=1%, k=2)

0.16 mg

Permissible repeatability [5% Max]

1.5 µg

Permissible repeatability [Max]

3 µg

Linearity

±7 µg

Eccentric load deviation

7 µg

Sensitivity time drift

1×10⁻⁶/Year×Rt

Stabilization time

~ 3.5 s

Adjustment

internal (automatic)

OIML Class

I


Physical parameters
Leveling system

semi-automatic – LevelSENSING

Display

10″ graphic colour touchscreen

Weighing chamber doors

manual

Delivery components

Microbalance, weighing pan, weighing pan shield, bottom cover, power supply, brush, fabric dust cover.

Weighing chamber dimensions

168×160×228 mm

Weighing pan dimensions

ø30 mm

Packaging dimensions W x D x H

750×492×595 mm

Net weight

9.8 kg

Gross weight

14.3 kg


Construction
Protection class

IP 43


Communication interface
Communication interface

2×USB-A, USB-C, RS 232 (COM3), HDMI, Ethernet, Wi-Fi®, Hotspot


Electrical parameters
Power supply Adapter: 100 – 240V AC 50/60Hz 1A Max; 15V DC 2.4A
Balance: 12 – 15V DC 1.4A max; 9 – 17W*

Environmental conditions
Operating temperature

+10 – +40 °C

Operating temperature change rate

±0.3 °C / 1 h (±1 °C / 8 h)

Relative humidity

40% – 80%

Relative humidity change rate

±1% / h (±4% / 8 h)

Description
Description
Models
Technical Data
Product

Analytical microbalance 6-digit

Model

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