Description
High-Precision Analytical Balance with Internal Calibration and Advanced Data Management
The Radwag AS 220.R2 PLUS Analytical Balance is a high-precision laboratory weighing instrument designed for accurate analytical measurements in pharmaceutical, chemical, and research laboratories. Part of the SYNERGY LAB line, the AS R2 PLUS series combines advanced mechanical design with intelligent data management features to deliver exceptional reliability, precision, and ease of operation.
With a 220 g maximum capacity and 0.1 mg readability, this analytical balance ensures extremely accurate measurements while maintaining fast stabilization times. The spacious weighing chamber and ergonomic open-door design allow convenient access to the weighing pan, making it easy to work with laboratory glassware of various sizes.
The balance includes automatic internal adjustment, which compensates for temperature changes and time drift to maintain consistent measurement accuracy even in challenging laboratory environments.
Multiple communication interfaces—including RS232, USB-A, USB-B, Ethernet, and optional Wi-Fi—allow seamless integration with computers, laboratory information systems, and data management software.
Key Features of the Radwag AS 220.R2 PLUS Analytical Balance
Ultra-Precise Measurement
Provides 0.1 mg readability with 220 g capacity, ideal for high-accuracy laboratory measurements.
Spacious Weighing Chamber
The large weighing chamber and wide door opening allow easy access and convenient handling of laboratory vessels.
Automatic Internal Adjustment
An advanced internal calibration system automatically adjusts the balance to maintain precision despite environmental changes.
Anti-Static Glass Coating
Special antistatic pane coating reduces electrostatic influence on measurements, improving weighing stability.
Ergonomic Mechanical Design
A new aluminum base construction enhances stability while the Dual-CLICK system allows tool-free assembly and cleaning of the weighing chamber.
Front Levelling System
A simplified two-point leveling system located at the front of the weighing chamber allows quick and accurate leveling.
Secure ALIBI Memory
The integrated ALIBI memory system records up to 100,000 weighments, ensuring secure long-term data storage for regulatory compliance.
Advanced Connectivity
Communication interfaces include:
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2 × RS232
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USB-A
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USB-B
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Ethernet
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Optional Wi-Fi
A front USB port allows quick connection to flash drives and external devices.
Kensington Lock Security
The balance includes a Kensington lock slot to protect the instrument against theft.
Integrated Data Management System
The AS R2 PLUS series includes an advanced internal data system with five databases.
Database Capacity
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Operators: up to 10 users
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Products: up to 1000 products
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Weighings: up to 5000 measurements
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Tares: up to 100 tare values
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ALIBI memory: up to 100,000 weighment records
This system enables multiple users to work with multiple product databases while maintaining secure traceability.
Advanced Weighing Functions
The AS R2 PLUS analytical balance supports a wide range of laboratory weighing functions.
Autotest
Automatic diagnostic function that verifies metrological parameters such as repeatability under real operating conditions.
Dosing
Precise dosing function using a reference mass and tolerance range, ideal for weighing powders, liquids, and granular materials.
Percent Weighing
Compares sample weight to a reference value (100%) to determine percentage deviation.
Totalizing
Adds multiple weighing results together to determine total mass of mixtures.
Parts Counting
Counts items based on total weight and known individual unit weight with automatic accuracy correction.
Peak Hold
Captures and holds the highest weight reading during dynamic measurements.
Statistics
Provides statistical analysis of measurements including:
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Maximum and minimum values
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Average value
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Standard deviation
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Variance
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Measurement range
Checkweighing
Allows verification of whether sample mass falls within predefined LOW (LO) and HIGH (HI) thresholds.
Under-Pan Weighing
Supports suspended weighing for non-standard or large objects.
Animal Weighing
Determines mass of moving samples by averaging measurements over a defined time period.
Density Determination
Allows measurement of solid or liquid density using Archimedes’ principle with an optional density kit.
GLP Procedures
Automatically generates Good Laboratory Practice (GLP) compliant weighing reports.
Ideal Applications
The Radwag AS 220.R2 PLUS analytical balance is commonly used in:
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Pharmaceutical laboratories
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Chemical analysis
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Academic research laboratories
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Quality control testing
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Material science research
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Industrial laboratory environments
Technical Specifications
Model
AS 220.R2 PLUS
Part Number: WL-104-0177
Weighing Capacity
Maximum capacity:
220 g
Minimum load:
10 mg
Readability:
0.1 mg
Tare range:
−220 g
Accuracy
Repeatability (5% Max):
0.07 mg
Repeatability (Max):
0.08 mg
Permissible repeatability (5% Max):
0.09 mg
Permissible repeatability (Max):
0.1 mg
Linearity:
±0.2 mg
Stabilization time:
2 seconds
Minimum Sample Weight
Standard minimum weight (USP):
140 mg
Standard minimum weight (U = 1%, k = 2):
14 mg
Display
Backlit LCD display
Weighing Pan
Diameter:
4 inches
Material:
Stainless steel
Connectivity
Communication interfaces:
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2 × RS232
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USB-A
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USB-B
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Ethernet
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Optional Wi-Fi
Power Requirements
100–240 VAC, 50/60 Hz
Operating Conditions
Operating temperature:
10°C – 40°C
Dimensions & Weight
Package dimensions:
19.5 × 15.5 × 20.5 inches
Unit weight:
12 lbs
Shipping weight:
16 lbs
Certification
NTEP Certified
Included Components
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Radwag AS 220.R2 PLUS Analytical Balance – 1
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Universal Power Adapter – 1
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Draft Shield for Pan – 1
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Pan Assembly – 1
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Balance Pad – 1
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Start-Up Guide – 1
Warranty
2-Year Manufacturer Warranty
Downloads
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User Manual
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Product Brochure
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USB Driver
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ALIBI Reader Tutorial