OHAUS EXP225D/AD Explorer EXP Semi-Micro Balance, 120 g/220 g Capacity, 0.01 mg/0.1 mg Readability, AutoCal, Touchscreen

OHAUS EXP225D/AD Semi-Micro Balance — Dual-Range 0.01 mg and 0.1 mg up to 220 g

The OHAUS EXP225D/AD Semi-Micro Balance delivers two instruments in one chassis: a 120 g range at 0.01 mg readability for ultra-precise work, and a 220 g range at 0.1 mg for broader analytical tasks. Teams that must alternate between high-sensitivity micro-weighing and standard analytical measurements throughout a shift can stay at the same bench and maintain consistent data infrastructure across both modes.

Key Features

• 120 g / 220 g Dual Capacity: Seamlessly switch between two operating ranges to cover high-precision and moderate-precision weighing scenarios from a single footprint.
• 0.01 mg / 0.1 mg Dual Readability: Fine and coarse resolution modes address the distinct accuracy requirements of trace analysis and routine analytical work.
• AutoCal Internal Calibration: Independently calibrates each range, ensuring that resolution and accuracy are maintained whether operating at 0.01 mg or 0.1 mg.
• Built-In Ionizer: Zinc-alloy pan with active static neutralization minimizes weighing errors caused by electrostatic attraction at both resolution levels.
• Anti-Pinch Motorized Autodoors: Proximity-sensor-activated draftshield doors protect the weighing chamber without manual handling, reducing contamination risk.
• Compliance-Ready Logging: Four-level user access management and 100,000-entry system log support GMP and ISO traceability requirements across both operating modes.
• Broad Interface Options: USB-A ×2, USB-B, USB-C, Ethernet, and RS232 with optional wireless modules provide flexible LIMS and printer integration.

Detailed Overview

The OHAUS EXP225D/AD Semi-Micro Balance handles the full scope of semi-micro and analytical laboratory weighing. In the fine range, the 0.02 mg typical repeatability and 20 mg USP minimum weight (at 0.1% tolerance) satisfy microanalysis and pharmacopoeial requirements. Switching to the 220 g / 0.1 mg coarse range extends versatility to heavier reference standards and bulk samples without sacrificing automation or audit capability. The 80 × 80 mm zinc-alloy pan suits standard semi-micro weighing vessels, and the motorized leveling system ensures proper alignment regardless of which range is active. The sample spotlight and status LEDs provide consistent visual feedback across modes, and the 7-inch touchscreen's intuitive layout makes range selection a quick, error-free operation.

Applications

• Mixed-workflow laboratories alternating between micro-weighing and analytical tasks
• Pharmaceutical QC requiring both API micro-dispensing and excipient analytical weighing
• Research teams benchmarking reagent quantities across a wide mass range
• Calibration services needing one instrument for multiple reference standard sizes

Why Choose the OHAUS EXP225D/AD?

Rather than maintaining two separate instruments at different resolution tiers, the EXP225D/AD consolidates both into a single, audit-compliant platform. This reduces bench space requirements, instrument maintenance overhead, and the risk of transferring samples between stations. Order today to streamline multi-resolution workflows under one consistent system.