The W3002A-120ACS is the Accuris AccuCheck Pipette Calibration System — a bundle that combines the W3002A-120 precision balance with W3110-series pipette-calibration accessories for gravimetric pipette verification workflows. Pipette calibration is a routine institutional QM workflow per ISO 8655 (the standard for piston-operated volumetric apparatus) — labs operating under quality-management frameworks (FDA 21 CFR Part 11, ISO 17025, GLP, GMP) require periodic pipette calibration with documented gravimetric verification. The AccuCheck system delivers the dedicated balance + accessories package at lower cost than purchasing the components separately.
Author confidence note (MEDIUM): Brochure context for the full W3002A-120ACS bundle composition is sparse in the available Accuris catalog corpus. The universe price-list label is truncated ("W3002A-120 Balance with W3110..."). Standard pipette-calibration-system bundles typically include: balance, evaporation trap (reduces evaporation error during gravimetric measurement), calibration software (logs measurement, calculates pipette accuracy and precision per ISO 8655), and pipette positioning fixtures. Confirm complete bundle contents at first order.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | W3002A-120ACS |
| Type | Pipette Calibration System bundle — balance + W3110-series accessories |
| Bundle composition (partial, per universe label) | W3002A-120 precision balance + W3110-series pipette-calibration accessories (full composition to confirm at order) |
| Workflow standard | ISO 8655 (piston-operated volumetric apparatus calibration) |
| Function | Gravimetric pipette verification for institutional QM workflow |
| List price | $4,388 |
What This System Does
Pipette calibration via gravimetric verification is the gold-standard method for confirming pipette accuracy and precision per ISO 8655. The workflow:
- Set the pipette to the target volume (typically the pipette's max volume, mid volume, and min volume — three-point calibration)
- Aspirate water (or the calibration-standard liquid per ISO 8655)
- Dispense onto the calibration balance in a sealed evaporation-trap chamber
- Record the measured weight — calculate the volume from weight × water density (temperature-corrected per ISO 8655)
- Repeat 10 measurements per volume per the ISO 8655 protocol
- Calculate accuracy (mean deviation from target volume) and precision (CV%) — compare against ISO 8655 limits or the lab's internal QM specifications
- Document the result in the institutional calibration log; trigger pipette service or repair if results exceed limits
The AccuCheck system delivers the dedicated balance + evaporation trap + calibration software + positioning fixtures as a single bundle, vs purchasing each component separately and integrating them.
Compatibility & Configuration
Institutional QM-managed labs — operations under FDA 21 CFR Part 11, ISO 17025, GLP, GMP, or similar frameworks where periodic pipette calibration is part of the audit-trail requirement.
Pharma R&D and QC labs — pharma manufacturing QC and R&D labs running pipette calibration on a defined schedule (typically quarterly) per institutional QM procedure.
Clinical-research and clinical labs — clinical labs where pipette accuracy directly affects patient-result quality (clinical chemistry, immunoassay, molecular diagnostic workflows).
Academic core facilities — shared lab cores where pipette calibration documentation supports user-charge billing and QM reporting.
Multi-site institutional QM standardization — multi-site operations standardizing on the AccuCheck system for consistent calibration workflow across sites.
Frequently Asked Questions
What is included in the W3002A-120ACS AccuCheck system? The bundle combines the W3002A-120 precision balance with W3110-series pipette-calibration accessories; full bundle composition should be confirmed at order.
What calibration standard does the AccuCheck system support? ISO 8655 — the standard for calibration of piston-operated volumetric apparatus (pipettes).
Which labs is this pipette calibration system for? Institutional QM-managed labs operating under frameworks such as FDA 21 CFR Part 11, ISO 17025, GLP, or GMP that require documented gravimetric pipette verification.
What is the list price of the W3002A-120ACS? $4,388 — a capital instrument bundle.
Ordering & Configuration
Confirm at order (per author confidence note): complete bundle contents (W3002A-120 balance + W3110-series accessories — what specific W3110 SKUs are included), evaporation trap configuration, calibration software details (ISO 8655 protocol templates, audit-trail features), pipette positioning fixture specifications, calibration-weight ecosystem alignment.
Workflow integration. Pipette calibration software typically supports import of pipette inventory, calibration scheduling, and audit-trail documentation; confirm institutional QM software integration requirements at order (e.g., LIMS integration, ISO 17025 QM software integration).
Calibration weight procurement. External calibration of the underlying W3002A-120 balance requires NIST-traceable calibration weights; confirm calibration-weight inventory at order.
Confirm at quote: complete bundle composition (per author-confidence note), workflow standard (ISO 8655 alignment), institutional QM framework requirements (FDA 21 CFR Part 11, ISO 17025, GLP), calibration-weight inventory, training requirements, and lead time.
Warranty: Per Accuris standard warranty terms for the bundle components — confirm at quote.
Accuris weighing system family:
- W3002A-120ACS (this product) — Pipette Calibration System bundle (balance + W3110-series accessories)
- W3100-120 / W3100-210 — Analytical balances (120 g / 210 g, external calibration)
- W3100A-120 / W3100A-210 — Analytical balances with internal auto-calibration
The W3002A-120ACS bundle is the right pick for institutional pipette-calibration QM workflow; the W3100 series analytical balances are the right pick for general lab weighing without the dedicated pipette-calibration accessory stack.
