Mettler Toledo XP205DR DeltaRange Analytical Balance

Mettler Toledo XP205DR DeltaRange Analytical Balance – Used & Refurbished

The Mettler Toledo XP205DR DeltaRange Analytical Balance combines 10 µg readability within an 81 g fine range with 0.1 mg readability throughout its full 220 g weighing range, giving laboratories two useful levels of analytical resolution in a single instrument. Designed for demanding quantitative weighing, the XP205DR is particularly well suited for pharmaceutical, biotechnology, chemical, environmental, research, and quality-control laboratories that routinely work with both small samples and larger analytical loads.

Available used and refurbished from American Instrument Exchange, the Mettler Toledo XP205DR incorporates MonoBloc weighing technology, SmartGrid, proFACT automatic internal adjustment, an enclosed draft shield, touchscreen operation, and advanced built-in weighing applications.

The DeltaRange system distinguishes the XP205DR from a conventional single-range analytical balance by providing semi-micro-level 0.01 mg resolution when working within the 81 g fine range, while maintaining a full 220 g analytical weighing capacity at 0.1 mg readability.

Each XP205DR is inspected, cleaned, calibrated, and tested for weighing performance before shipment and includes a 90-day warranty from American Instrument Exchange.

Key Features

• 220 g maximum weighing capacity

• 81 g DeltaRange fine-range capacity

• 0.1 mg readability throughout the full weighing range

• 0.01 mg / 10 µg readability within the fine range

• Repeatability at nominal 200 g load of approximately 0.06 mg

• Linearity deviation of ±0.15 mg

• MonoBloc weighing technology

• SmartGrid weighing pan

• 73 × 78 mm weighing pan

• proFACT automatic internal adjustment

• Enclosed analytical draft shield

• Color touchscreen interface

• Built-in weighing applications

• Advanced laboratory workflow capabilities

• RS232 connectivity

• Used, refurbished, calibrated, and tested by American Instrument Exchange

• 90-day warranty included

Overview

The Mettler Toledo XP205DR is a dual-range DeltaRange analytical balance designed for laboratories that need more flexibility than a conventional single-range analytical balance can provide.

Across its full 220 g capacity, the XP205DR provides 0.1 mg readability, making it suitable for routine analytical weighing, standards preparation, quantitative chemistry, reagent preparation, formulation, and quality-control procedures.

Within its 81 g fine range, readability increases to 0.01 mg, or 10 µg.

That tenfold improvement in displayed resolution allows the XP205DR to support more demanding measurements involving small samples, valuable compounds, filters, residues, standards, and other materials where conventional 0.1 mg analytical resolution may not be sufficient.

This combination allows the XP205DR to perform both routine analytical weighing and selected semi-micro-level procedures without requiring laboratories to maintain separate instruments for every application.

Common Applications

The Mettler Toledo XP205DR is well suited for standards preparation, pharmaceutical research, quantitative chemical analysis, gravimetric analysis, formulation development, reagent weighing, filter weighing, residue analysis, sample preparation, quality control, density determination, differential weighing, and other high-accuracy analytical procedures.

Pharmaceutical and biotechnology laboratories can use the XP205DR for reference standards, formulation ingredients, active compounds, analytical sample preparation, and quality-control measurements.

Chemical laboratories can use the balance for quantitative analysis, compound preparation, solution preparation, and research applications.

Environmental laboratories can benefit from the 10 µg fine range when weighing filters, residues, collected particulate matter, and other relatively small samples.

Academic and research laboratories may find the dual-range design especially valuable because one balance can support a broad spectrum of analytical weighing procedures.

Ideal Laboratory Types

The XP205DR is an excellent choice for pharmaceutical, biotechnology, chemical, environmental, forensic, academic, research, analytical testing, and quality-control laboratories.

It is particularly useful in facilities where conventional 0.1 mg analytical weighing is sufficient for most procedures but higher resolution is occasionally required.

Rather than dedicating separate balances to routine analytical and higher-resolution work, laboratories can use the XP205DR's DeltaRange capability to accommodate both.

This versatility can be especially valuable in multi-user laboratories where sample sizes and measurement requirements vary throughout the day.

DeltaRange Analytical Weighing Performance

The defining characteristic of the XP205DR is its DeltaRange dual-range weighing system.

The balance provides:

0.01 mg / 10 µg readability within an 81 g fine range, and

0.1 mg readability throughout its full 220 g weighing capacity.

This allows technicians to perform higher-resolution measurements when necessary while retaining enough capacity for larger samples and tare containers.

Mettler Toledo's original XP documentation specifies repeatability of approximately 0.06 mg at a nominal 200 g load and linearity deviation of approximately ±0.15 mg.

The actual performance of an individual balance depends on its condition, calibration, installation environment, sample characteristics, and operating technique.

American Instrument Exchange evaluates these performance characteristics during refurbishment and testing before the balance is released for sale.

Understanding the 81 g Fine Range

The XP205DR does not provide 0.01 mg readability throughout its entire 220 g capacity.

Its highest resolution is available within the 81 g DeltaRange fine range.

This distinction is important when selecting the balance for a specific application.

The total load placed on the balance includes both the sample and the tare container. Laboratories planning to use the 10 µg fine range should therefore consider the combined weight of weighing vessels, sample holders, filters, containers, and the material being measured.

For procedures that exceed the fine range, the XP205DR continues to function as a high-quality analytical balance with 0.1 mg readability through 220 g.

This is what makes the DeltaRange architecture particularly versatile: laboratories gain access to higher resolution when needed without giving up a practical full analytical weighing range.

Minimum Sample Weight & USP Applications

Minimum sample weight should be treated carefully on the XP205DR.

A balance's readability is not the same as the smallest quantity that can be weighed quantitatively.

Minimum weight depends primarily on repeatability and the maximum relative measurement uncertainty permitted by the laboratory's procedure.

For an older dual-range balance such as the XP205DR, American Instrument Exchange recommends determining minimum sample weight based on the actual repeatability of the installed instrument under its real operating conditions rather than relying on a generic minimum-weight value.

This is particularly important for USP, GMP, GLP, and other regulated procedures.

Laboratories should establish minimum weight using their applicable uncertainty requirements, qualification procedures, and the measured performance of the individual XP205DR.

The balance's 10 µg fine-range readability can support very small samples, but the acceptable quantitative minimum must be determined from actual balance performance rather than readability alone.

Controlling Drafts, Vibration & Static

Environmental control becomes increasingly important when weighing at 10 µg resolution.

Air currents, vibration, temperature gradients, electrostatic charge, sample temperature, and operator technique can all influence weighing results.

The XP205DR incorporates an enclosed draft shield to isolate the weighing pan from routine laboratory airflow.

The balance should also be installed on a rigid, stable weighing table away from centrifuges, shakers, pumps, compressors, doors, HVAC outlets, and high-traffic areas.

Static electricity can be particularly problematic when weighing powders, filters, plastics, glass vessels, and low-mass samples.

Where static is a concern, appropriate antistatic procedures or equipment should be considered.

Samples should also be allowed to equilibrate to the weighing environment whenever practical before demanding measurements are performed.

proFACT Automatic Internal Adjustment

The XP205DR incorporates Mettler Toledo's proFACT automatic internal adjustment system.

Internal reference weights allow the balance to monitor and adjust its weighing performance without requiring the operator to manually place external calibration weights on the pan for routine adjustment.

This is especially useful for high-resolution analytical weighing, where temperature changes and environmental conditions can influence measurement performance.

Automatic internal adjustment does not eliminate the need for independent verification.

Laboratories operating under USP, GMP, GLP, ISO, or internal quality systems may still require scheduled testing with appropriate traceable external reference weights.

American Instrument Exchange verifies operation of the internal adjustment system and performs external performance testing as part of the refurbishment process.

SmartGrid & Weighing Stability

The XP205DR incorporates Mettler Toledo's SmartGrid weighing pan.

Unlike a conventional solid pan, SmartGrid is designed to reduce the surface area exposed to moving air within the weighing chamber.

Reducing the effect of air movement helps the weighing cell stabilize more efficiently and can improve repeatability during high-resolution measurements.

SmartGrid is particularly useful when performing repetitive analytical procedures where technicians frequently open and close the draft shield to exchange samples.

The design also makes spilled material easier to identify and helps keep the primary weighing surface separated from debris that may fall beneath it.

Touchscreen Operation & Built-In Applications

The XP platform incorporates a color touchscreen terminal that provides access to weighing functions, settings, applications, and stored information.

This represents a significant workflow improvement over older analytical balances that rely on basic segmented displays and button-driven menus.

The XP205DR supports built-in applications for procedures such as density determination, differential weighing, formulation, statistics, percentage weighing, piece counting, and pipette-related weighing applications, depending on configuration.

These functions allow the balance to support more than straightforward mass determination.

For laboratories performing repetitive analytical procedures, integrated applications can reduce manual calculations and help standardize weighing workflows.

Laboratory Data & Connectivity

The XP205DR provides connectivity for transferring weighing results to compatible computers, printers, and laboratory systems.

Electronic transfer can reduce manual transcription and the potential for recording errors.

For regulated and quality-controlled environments, electronic data handling can also support more consistent documentation of analytical weighing procedures.

The capabilities of a particular XP205DR should be evaluated according to its installed hardware, software version, interfaces, and the laboratory systems with which it will be used.

Key Specifications

Choosing Between a Dual-Range and Single-Range Analytical Balance

A conventional analytical balance generally provides 0.1 mg readability throughout its entire weighing range.

That is sufficient for a wide variety of quantitative laboratory procedures.

The XP205DR adds an 81 g fine range with 0.01 mg readability, providing ten times finer displayed resolution when the application requires it.

This can be valuable for smaller samples, filters, residues, reference materials, expensive compounds, and other procedures where 0.1 mg resolution may become limiting.

The advantage of a dual-range balance is flexibility.

Laboratories gain access to semi-micro-level resolution without sacrificing a practical 220 g analytical weighing range.

A single-range analytical balance may be preferable when all procedures comfortably fall within conventiona

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