OHAUS EXR324 Explorer EXR Analytical Balance, 320g Capacity, 0.1mg Readability, AutoCal, Touchscreen

OHAUS EXR324 Analytical Balance — Broad 320 g Range Without Sacrificing 0.1 mg Precision

Analytical balances with 120 g or 220 g ceilings can leave scientists short when working with denser compounds or heavier sample containers. The OHAUS EXR324 Analytical Balance solves that by raising the analytical ceiling to 320 g while holding readability firmly at 0.1 mg — enabling four-decimal accuracy across a sample-mass range that most analytical instruments cannot match. AutoCal™ maintains calibration without any user involvement.

Key Features

• 320 g Maximum Capacity at 0.1 mg: The widest-range four-decimal analytical balance in the Explorer EXR line, accommodating heavier analytical samples without precision loss.
• AutoCal™ Internal Calibration: Internal motorized weight corrects calibration drift triggered by temperature change, keeping the balance traceable through extended analytical sessions.
• Anti-Static Glass Draftshield: Fully enclosed 90 × 90 mm pan chamber protects against airflow and electrostatic charge, two primary sources of error at 0.1 mg sensitivity.
• 7-inch Color Touchscreen: The large glass-overlay display and dual touchless sensors make navigating application menus and executing tare functions ergonomic and contamination-free.
• Multi-Protocol Connectivity: Standard USB Device, USB Host × 2, RS232, and Ethernet; optional Wi-Fi/Bluetooth for wireless connectivity in networked laboratory environments.
• 11 Weighing Applications: Density determination, differential weighing, formulation, check weighing, and more are all built into the platform and accessible immediately.
• GLP Data Tools: 100,000-event audit log, four-level user access, and NTP time-stamped records address documentation requirements in regulated analytical environments.

Detailed Overview

The EXR324 occupies a unique position: it is the highest-capacity four-decimal analytical balance in the Explorer EXR series, extending the usable weighing range to 320 g. This matters most when the tare mass of the container — a heavy crucible, a flask with a magnetic stir bar, or a metal weighing tray — consumes a significant portion of the instrument's range. With 320 g available, analysts retain sufficient headroom for both the container and the sample. The 90 × 90 mm pan fits the same standard analytical ware as 220 g models. The metal housing and enclosed draftshield maintain the stability expected of analytical instruments, while operating conditions of 10°C–30°C and 80% non-condensing humidity suit typical controlled laboratory settings. HID connectivity and NTP synchronization round out a data integration capability aligned with modern laboratory information management needs.

Applications

• Gravimetric analysis involving heavy vessels, crucibles, or multi-component assemblies
• Analytical weighing of dense metal alloys, ceramics, and materials specimens exceeding 220 g
• Pharmaceutical QC where container tare mass reduces effective analytical range on smaller instruments
• Reference laboratory verification of weights in the 200–300 g class at 0.1 mg accuracy
• Differential and formulation weighing of high-mass multi-component mixtures

Why Choose the OHAUS EXR324?

The OHAUS EXR324 Analytical Balance extends analytical precision to a 320 g capacity that most four-decimal instruments do not offer, making it the right choice for scientists whose containers and samples together regularly exceed 200 g. Automated calibration and comprehensive compliance features come included. Order today to eliminate the capacity ceiling that limits standard analytical balance work.