Name: Balance XPR304E/A
Brand: Mettler Toledo

Accurate Results and Low Minimum Weights

With a high-performance load cell and hanging weighing pan design, you can weigh small samples with high accuracy, reducing waste and saving costs.

Smart Compliance Support

We offer Good Weighing Practice® methodology, built-in features like StatusLight, and data management options to help you comply with regulations.

Expertly Designed Ergonomics

Open the motorized doors with one touch, dose easily onto the low weighing pan, and place the balance display where it's convenient.

Safe and Easy Cleaning

All parts are dishwasher safe, and the draft shield, drip tray, and weighing pan can be dismantled in seconds. The interior has a gap-free design, preventing the build-up of residues and eliminating the risk of liquid spills damaging the balance mechanics.

Paperless Data Management with LabX

Connect your balance to LabX software to save your results automatically, ensure traceability, and simplify data management. Additionally, users can receive step-by-step guidance on the balance display while progress is simultaneously monitored remotely.

Reliable Performance for Years to Come

Manufactured in Switzerland using high-quality materials, this balance upholds the famous durability of METTLER TOLEDO products. The load cell and electronics withstand intensive use, providing reliable performance and a low cost of ownership in the long term.

Effortless Productivity

This balance is designed to make weighing simple. Thanks to motorized doors, multiple connectivity options, and our innovative SmartPan, you can finish your work quickly. Easily upgrade the system to include an ionizer, barcode reader, or ErgoClips.

Environmentally Conscious

Our operations have been carbon neutral since 2020. The small device footprint minimizes the build materials required and we focus on sourcing recyclable packaging. Furthermore, the low minimum weight means you can reduce sample sizes and avoid waste.

Your Trusted Partner in Weighing

Our free GWP® Recommendation ensures you have the right balance for your weighing process. With years of weighing expertise, we can support you with balance selection, installation, cleaning, routine testing, calibration and maintenance.

Comprehensive Service Offering

Our services include installation and qualification, calibration, maintenance, and routine testing to ensure your balance is fit for purpose and meets industry standards and regulatory requirements. Customize your service package to meet your precise needs.

Specifications - Balance XPR304E/A

Maximum Capacity	320 g
Readability	0.1 mg
Minimum Weight (USP, 0.1%, typical)	82 mg
Adjustment	Internal (automatic/FACT)
Weighing Pan Dimensions (WxD)	78 mm x 73 mm
Dimensions (HxWxD)	292 mm x 195 mm x 456 mm
Repeatability, typical	0.04 mg
Readability (Certified)	1 mg
METTLER TOLEDO's Top Seller	No
Approved Balance	Yes
Automatic Static Detection	No
Minimum Weight (U=1%, k=2), typical	8.2 mg
Settling Time	1.5 s
Beta (Fine range)	0.00000958 g
Balance Line	XPR Essential
Interfaces	Bluetooth (optional) Ethernet RS232 (optional) USB-A USB-B (to device)
Balance Type	Analytical Balance
Alpha (Fine range)	0.00009092 g
Level	Excellence
Features	Leveling guidance Password protection Supports 21 CFR Part 11 (LabX compatible)
User Management	Password protection Unlimited Amount of Users User Rights
Display	7" colour TFT touchscreen

Datasheet

Datasheet: XPR Essential Analytical Balances

Download this datasheet to learn more about the specifications and accessories of XPR Essential Analytical Balances.

Product Documentation

User Manual Analytical Balances XPR Essential

Reference Manual: XPR Essential Analytical Balances

Reference Manual: MT-SICS Interface Commands for XPR and XSR Balances (pdf - 1 MB)

To enable you to integrate balances into your systems in a simplified manner and utilize their capabilities, many balance functions can be accessed th...

Antistatic Solutions for Weighing

Antistatic Ionizer and Stand

Antistatic kit comprising one stand and one compact electrode designed for XPR balances. It effectively reduces a major, often-overlooked source of weighing errors, improving measurement accuracy and reliability.

Material No.: 30499859

Density Kits

Density Kit (Essential Analytical)

Easily upgrade your XPR Essential analytical balance for accurate density determination of solid, liquid, viscous, and porous substances. The simple mounting process ensures reliable results in just moments.

Material No.: 30460217

Dosing Accessories

ErgoClip Vial (Analytical)

The ErgoClip holder is designed for glass vials (∅ 10.3–21 mm). Direct dosing is efficient, fast, and fits any working situation. The ErgoClips can be easily installed in just seconds. Compatible with XPR and XPR Essential analytical balances.

Material No.: 30521808

Excellence Refractometer Accessories and Consumables

Lab equip acc data writer P-58RUE

P-58RUE Thermal Printer offers statistics, formulation, totaling applications and label printing with barcode. It can be connected via RS232, USB and ethernet interfaces.

Material No.: 30094674

Lab equip acc data writer P-56RUE

P-56RUE Thermal printer supports printing on thermal paper and continuous thermal labels, and it can be connected via RS232, USB and ethernet interfaces.

Material No.: 30094673

Interfaces, Cables, and Power Supplies

Bluetooth RS232 Adapter (single)

Single Bluetooth RS232 serial adapter for wireless connection between an instrument and a peripheral.

Material No.: 30086494

Bluetooth USB Adapter

Bluetooth USB adaptor for XPR/XSR balances for wireless connection to a Bluetooth-enabled device; ideal for P5x printers

Material No.: 30416089

Cable RS232 (m) – USB-A (m)

RS232 - USB converter cable to connect a balance (RS232) to a USB port

Material No.: 64088427

Pipette Check Accessories

Pipette Testing Beaker

This accessory is designed for pipette testing within the 20–2000 µL range. Easy to set up and ready to use in seconds, it is essential for achieving reproducible and reliable results.

Material No.: 30215436

Printers and Printer Accessories for Laboratory

Lab equip acc data writer P-52RUE

P-52RUE dot matrix printer supports printing on paper and continuous label and can be connected via RS232, USB and Ethernet interfaces.

Material No.: 30237290

Tare Container Holders

Filter Weighing Pan (Analytical)

Equip your balance with a filter weighing pan for a state-of-the-art solution for these routine tasks. This pan is designed for filters with ∅ 110–150 mm and is compatible with XPR and XPR Essential analytical balances.

Material No.: 30460844

ErgoClip Tube (Analytical)

The ErgoClip holder is designed for PCR, Eppendorf, and reaction tubes (∅ 8/12 mm). Direct dosing is efficient, fast, and the flexible ErgoClips can be easily installed in just seconds. Compatible with XPR and XPR Essential analytical balances.

Material No.: 30460853

ErgoClip Syringe (Analytical)

The ErgoClip holder is designed for glass or plastic syringes (1–10 mL). This unique accessory enables convenient sample handling, and the ErgoClips can be easily installed in just seconds. Compatible with XPR and Essential analytical balances.

Material No.: 30460859

ErgoClip Flask (Analytical)

The ErgoClip holder is designed for volumetric flasks (20–200 mL). Direct dosing is efficient, fast, and fits any working situation. The ErgoClips can be easily installed in just seconds. Compatible with XPR and XPR Essential analytical balances.

Material No.: 30460842

Weighing Pans

SmartGrid Cover Plate (Analytical)

Weighing pan cover made of chromium-nickel steel for XPE/XS analytical balances

Material No.: 11106709

Single-Use Aluminium Pans (10 pieces)

Single-use aluminum weighing pans (10-pack) compatible with SmartGrid on XPR and XPR Essential analytical balances provide a solid weighing surface when needed.

Material No.: 11106711

Weighing Peripherals

ErgoSens Motion Sensor

Perform balance operations such as opening doors, taring, zeroing, or adding a result by waving your hand over the ErgoSens motion sensor. Connectable via USB-A.

Material No.: 30300915

Barcode Scanner

The corded Gryphon GD4220 USB-A barcode reader scans 1D and linear codes quickly. It simplifies your process and improves efficiency with reliable operation.

Material No.: 30417466

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