A&D Weighing AD-4212A-PT Pipette Accuracy Testing System (110g x 0.0001g)

Description

The AD-4212A-PT is a complete gravimetric pipette accuracy testing system built around a 110g x 0.0001g analytical balance, matched to A&D’s WinCT-Pipette software for automated, ISO 8655-compliant reporting. Rather than eyeballing a dispensed volume, the system weighs each dispensed sample, converts weight to volume, and logs the result automatically — the gravimetric method that ISO 8655 itself specifies for verifying pipette accuracy and precision.

A stainless steel breeze break shields the 50 x 50mm weighing pan from air currents that would otherwise disturb a reading at this resolution, and the balance stabilizes in 1.1-1.3 seconds so a full test series doesn’t turn into a multi-hour exercise. Ethernet/LAN and RS-232C connectivity let the balance feed results straight into WinCT-Pipette for statistical reporting (mean, standard deviation, %CV) without manual transcription, and the whole system ships in a padded 470 x 150 x 355mm carrying case for storage or transport between benches.

This capacity and readability combination suits single- and multi-channel pipettes in the higher-volume range typical of general lab and QC pipette fleets; for lower-volume, higher-precision pipette testing, see the dual-range AD-4212B-PT.

**Frequently asked questions**

**What’s the difference between this and the AD-4212B-PT?** The AD-4212A-PT is a single-range 110g x 0.0001g balance system. The AD-4212B-PT is a dual-range balance (31g/110g with 0.01mg/0.1mg readability) intended for testing pipettes at the lower end of the volume range, where finer readability matters more.

**Does this system meet ISO 8655?** Yes — A&D states the system is based on the gravimetric method and is ISO 8655 compliant, which is the standard most labs reference for pipette calibration and accuracy verification.

**Do I need to buy WinCT-Pipette separately?** No, the software is included with the system and is what turns raw weight readings into the volume, mean, and %CV statistics a pipette accuracy report requires.