OHAUS EXR224 Explorer EXR Analytical Balance, 220 g Capacity, 0.1 mg Readability, AutoCal, Touchscreen

OHAUS EXR224 Analytical Balance — Extended 220 g Capacity at 0.1 mg Precision

Gravimetric assays, titration prep, and compound synthesis often require analytical precision across a broader sample range than a 120 g instrument allows. The OHAUS EXR224 Analytical Balance extends that range to 220 g without reducing readability below 0.1 mg — giving analytical chemists more headroom when working with denser samples or larger containers. AutoCal™ handles recalibration automatically, and the enclosed draftshield ensures the extra capacity doesn't come at the cost of measurement stability.

Key Features

• 220 g Capacity with 0.1 mg Readability: An extended analytical range that covers heavier samples and larger weighing vessels while maintaining four-decimal precision.
• AutoCal™ Automatic Calibration: Temperature-triggered internal recalibration requires no manual interaction, making accuracy maintenance effortless during long analytical sessions.
• Anti-Static Glass Draftshield: Sealed 90 × 90 mm pan enclosure prevents airflow and electrostatic interference, two factors that become critical when working at 0.1 mg sensitivity.
• 7-inch TFT Touchscreen with Proximity Sensors: The full-color glass interface allows touchless taring and smooth application switching to reduce disturbance during sensitive procedures.
• Ethernet, USB, and RS232 Built In: Wired connectivity to PCs, printers, and LIMS is ready out of the box; optional wireless module adds Wi-Fi and Bluetooth.
• Density Determination Application: Built-in Archimedes' method density calculation for solids and liquids using the standardly included below-balance connection.
• Compliance Infrastructure: 100,000-entry audit log, four-tier user access, and NTP-synced timestamps ready for GLP/GMP data integrity requirements.

Detailed Overview

What distinguishes the EXR224 from the EXR124 is its 220 g capacity ceiling, which allows weighing of denser analytical samples — such as metal alloys, high-density powders, or larger titration vessels — without switching instruments mid-protocol. The 90 × 90 mm pan size remains consistent with standard analytical ware. The metal housing and robust glass draftshield construction maintain calibration stability during extended measurement sessions. Operating within 10°C–30°C and up to 80% relative humidity, the balance performs reliably in standard air-conditioned laboratories. HID-compatible USB connectivity eliminates driver management overhead when interfacing with Windows data-acquisition software, LIMS, or ERP systems. For organizations running multiple instruments of the same series, the shared Explorer EXR interface reduces training time across the bench.

Applications

• Gravimetric analysis of denser materials exceeding 120 g sample mass
• Formulation and compound synthesis requiring four-decimal accuracy above 120 g
• Density determination of high-mass solid samples using Archimedes' principle
• Pharmaceutical QC weighing where container tare weight reduces available sample range
• Calibration verification of reference weights in the 100–200 g class

Why Choose the OHAUS EXR224?

The OHAUS EXR224 Analytical Balance provides the same four-decimal accuracy found on 120 g instruments, extended to a 220 g ceiling that handles a wider variety of laboratory samples. Automated calibration, complete connectivity, and built-in compliance logging make it a dependable choice for regulated analytical environments. Order today and eliminate the capacity constraints of standard analytical balances.