Nichiryo MODEL3100 Adjustable Volume Multi-Channel Pipette

Overview

The Nichiryo MODEL3100 is a precision-engineered manual multi-channel pipette designed for high-reproducibility liquid handling in analytical, quality control, and research laboratories. Unlike electronic or semi-automated systems, the MODEL3100 operates on a robust mechanical piston-driven principle—utilizing a PTFE-coated stainless steel plunger and air displacement technology—to deliver consistent volumetric accuracy across four distinct volume ranges (0.2–1.0 mL, 0.4–2.0 mL, 1.0–5.0 mL, and 2.0–10.0 mL). Its design adheres to ISO 8655-2:2022 requirements for manual piston-operated pipettes, ensuring traceable performance under standardized gravimetric testing conditions. The instrument is calibrated at factory level using certified reference weights and distilled water at 20 °C, with full calibration certificates available upon request. As an imported Japanese instrument, it meets JIS B 7941 compliance for dimensional stability and ergonomic safety.

Key Features

• Four interchangeable volume configurations—each optimized for specific assay workflows requiring high-volume parallel dispensing (e.g., ELISA plate filling, cell culture media distribution, or buffer preparation).
• Ergonomic, low-profile chassis with balanced weight distribution and tapered finger grip zones—reducing operator fatigue during extended use sessions typical in high-throughput QC labs.
• PTFE-coated piston assembly ensures long-term sealing integrity, chemical resistance against common solvents (including 70% ethanol, PBS, and mild aqueous buffers), and minimal carryover between samples.
• Volume adjustment mechanism features tactile click-stop increments with clearly engraved scale markings—enabling rapid, parallax-free setting verification without magnification tools.
• Tip ejection force is optimized for compatibility with both universal-fit and Nichiryo-specific low-retention tips, minimizing tip slippage during aspiration and dispensing cycles.

Sample Compatibility & Compliance

The MODEL3100 is intended exclusively for aqueous and low-viscosity non-corrosive liquids (e.g., saline solutions, enzyme diluents, and standard cell culture media). It is not rated for use with organic solvents exceeding 10% concentration, viscous glycerol-based reagents (>10 cP), or highly volatile compounds (e.g., chloroform, acetone). All pipettes are supplied with a Declaration of Conformity referencing ISO 9001:2015 manufacturing controls and CE marking under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). While not classified as medical devices, its metrological performance supports GLP-compliant documentation when used within validated laboratory procedures aligned with ASTM E1153 and USP guidelines for analytical instrument qualification.

Software & Data Management

As a fully manual mechanical device, the MODEL3100 does not incorporate onboard electronics, firmware, or digital interfaces. Consequently, it requires no software installation, firmware updates, or cybersecurity validation. This architecture eliminates risks associated with data corruption, timestamp drift, or audit trail gaps—making it inherently suitable for environments governed by FDA 21 CFR Part 11 where electronic records are either unnecessary or intentionally avoided. Calibration logs, maintenance history, and user training records may be maintained manually or integrated into LIMS platforms via external documentation modules. Each unit ships with a serialized calibration record traceable to JCSS-accredited national standards.

Applications

• High-density microplate preparation for immunoassays (e.g., 96-well and 384-well formats) requiring simultaneous multi-well dispensing of wash buffers or detection reagents.
• Preparation of serial dilution series in pharmacokinetic or cytotoxicity studies where inter-channel consistency directly impacts IC₅₀ calculation reliability.
• Media and supplement addition in stem cell expansion protocols—where precise volumetric delivery minimizes batch-to-batch variability in growth factor concentrations.
• QC release testing of bulk pharmaceutical intermediates, including pH-adjusted aqueous suspensions and lyophilized reconstitution solutions.
• Environmental testing labs performing nutrient spiking in water toxicity assays (e.g., OECD 201), where reproducible multi-sample dosing supports statistical power in dose-response modeling.

FAQ

Is the MODEL3100 compatible with third-party pipette tips?
Yes—when dimensions conform to ISO 8655-3:2022 tip interface specifications; however, optimal accuracy and leak-free operation are guaranteed only with Nichiryo-certified tips (00-MPT-1, 00-MPT-2, 00-BMT2-X, 00-BMT2-Z).
Does this pipette require routine recalibration?
Per ISO 8655-5:2022, annual recalibration is recommended for regulated environments; more frequent verification (e.g., quarterly) is advised following mechanical shock, exposure to extreme temperatures, or after intensive use (>5000 cycles/month).
Can the MODEL3100 be sterilized in an autoclave?
No—the housing and internal mechanisms are not autoclavable. Surface decontamination should be performed using 70% isopropyl alcohol wipes; avoid submersion or ultrasonic cleaning.
What is the expected service life under normal laboratory conditions?
With proper handling and adherence to Nichiryo’s maintenance schedule (including biannual lubrication of the piston seal), operational longevity exceeds 10 years or 100,000 actuation cycles.
Is technical support available outside Japan?
Yes—authorized global distributors provide local calibration services, spare parts logistics, and application-specific troubleshooting aligned with ISO/IEC 17025-accredited service centers.