OHAUS EX223N/E Explorer Precision Balance, 220g Capacity, 0.001g Readability, NTEP Certified, Touchscreen

OHAUS EX223N/E Precision Balance — NTEP-Certified 220g Weighing with Milligram Resolution

Precision at the milligram scale, legal-for-trade compliance, and an enclosed weighing environment come together in the OHAUS EX223N/E Precision Balance. Covering a 220 g range at 0.001 g readability, this model uses external calibration—giving quality labs full control over their calibration schedules and weight standards while still delivering NTEP-certified traceability.

Key Features

• External Calibration Control: Relying on user-supplied certified masses lets quality departments align recalibration intervals precisely with internal quality management systems and ISO audit requirements.
• Included Glass Draftshield: An enclosed weighing chamber protects the 130 mm stainless steel pan from laboratory drafts, preserving 0.001 g repeatability even in ventilated or air-conditioned spaces.
• NTEP & Measurement Canada Approved: A certified readability of 0.01 g satisfies legal-for-trade requirements for pharmaceutical dispensing, precious-metal trade, and regulated process weighing.
• 5.7-Inch VGA Color Touchscreen: Clear, touch-accessible menus for 15-plus application modes—including formulation, pipette adjustment, and animal/dynamic weighing—reduce setup time to seconds.
• ±0.002g Linearity: Tight linearity across the full weighing range ensures consistent results whether weighing samples near zero or at the full 220 g capacity.
• Multi-Format Connectivity: USB and RS232 ports are included for immediate data output; optional Ethernet supports integration with networked laboratory data systems.
• 19 Measurement Units: From milligrams to Momme and Hong Kong Tael, the broad unit library serves global laboratory, gemological, and commercial weighing needs from a single platform.

Detailed Overview

Where the EX223N relies on automatic internal calibration, the OHAUS EX223N/E gives laboratory managers direct control: calibration occurs with external certified weights on a schedule set by the user, creating a clear, auditable record for quality systems. Both the draftshield and 5.7-inch color touchscreen are identical to those on the AutoCal model, so operators switching between the two variants face no learning curve. The compact 393 × 350 × 230 mm housing supports bench integration, and the stainless steel pan resists corrosion from chemical solvents. Typical repeatability of 0.001 g and a 1-second stabilization time keep analytical throughput consistent. The 10–30 °C operating window covers standard controlled laboratory environments, and the included in-use cover protects the touchscreen and pan between sessions.

Applications

• ISO-audited quality labs requiring user-controlled external calibration records
• Gemological weighing of diamonds and precious stones in carat units
• Pharmaceutical raw-material dispensing at milligram precision
• Academic and research sample preparation requiring traceable mass data

Why Choose the OHAUS EX223N/E?

Quality managers who prefer external calibration for full documentary control—without sacrificing touchscreen convenience or legal-for-trade certification—will find the OHAUS EX223N/E Precision Balance a practical and reliable solution. The included draftshield and 1-second stabilization make milligram-level accuracy achievable in real-world lab conditions. Add to cart to equip your audited laboratory with a certified, externally calibrated milligram balance.