HORIBA LAQUA2000 Series PC2000 Benchtop Water Quality Analyzer

Overview

The HORIBA LAQUA2000 Series PC2000 is a high-precision, multi-parameter benchtop water quality analyzer engineered for rigorous laboratory environments where reproducibility, traceability, and regulatory compliance are essential. Designed and manufactured in Japan, the PC2000 employs potentiometric, conductometric, and thermometric measurement principles to deliver simultaneous, real-time quantification of pH, oxidation-reduction potential (ORP), specific ion activity (via ISE), electrical conductivity, resistivity, total dissolved solids (TDS), salinity, and temperature. Its architecture adheres to fundamental electrochemical measurement standards—including ISO 7888 (conductivity), ASTM D1125 (pH and conductivity of water), and USP (conductivity of purified water)—ensuring data integrity across environmental monitoring, pharmaceutical water system validation, academic research, and municipal wastewater QA/QC workflows.

Key Features

• Seven-parameter simultaneous measurement: pH (–2.000 to 20.000), ORP (±2000.0 mV), ion concentration (0.000 μg/L to 9999 g/L), conductivity (0.000 μS/cm to 2.000 S/cm), resistivity (0.001 to 20.0 MΩ·cm), TDS (0.01 mg/L to 100 g/L), and salinity (0.0–100.0 ppt)
• High-resolution display: 5-inch backlit custom LCD with 320-segment graphical capability for intuitive slope visualization, real-time trend tracking, and on-screen electrode diagnostics
• Advanced calibration flexibility: Up to 5-point pH calibration (USA/NIST/DIN/custom buffers); up to 4-point auto-ranging or 5-point manual conductivity calibration; programmable electrode constant (0.070–13.00 cm⁻¹) and temperature coefficient (0.00–10.00 %/°C)
• Regulatory-ready data handling: 2000-point internal memory with automatic timestamping, real-time clock (RTC), and audit-trail-capable logging—fully compatible with GLP/GMP documentation requirements
• Robust connectivity and security: Dual BNC inputs for pH/ORP/ISE electrodes; dual phono jacks for ATC probes; DC power input; USB and RS-232C ports for instrument control, data export, and firmware updates; password-protected configuration access
• Intelligent operation modes: Auto-Stable (endpoint detection based on user-defined stability criteria), Auto-Hold (freeze reading upon stabilization), Real-Time (continuous streaming), plus programmable auto-shutdown (1–30 min) and calibration reminder (up to 90 days)

Sample Compatibility & Compliance

The PC2000 is optimized for aqueous samples across a broad range of matrices—including ultrapure water (UPW), drinking water, surface water, wastewater effluent, seawater, brines, and process rinse solutions. Its conductivity module supports automatic cell constant compensation and selectable reference temperatures (15.0–30.0 °C), enabling accurate measurements per EN 27888 and ISO 7888 protocols. TDS calculation offers four standard conversion curves (EN 27888, 442, NaCl, Linear), while salinity determination uses either NaCl or seawater algorithms per ASTM D1125 and IOC-UNESCO guidelines. All pH calibrations comply with NIST-traceable buffer specifications, and ORP verification meets ASTM D1498 recommendations. The instrument’s design conforms to IEC 61010-1 (safety) and IEC 61326-1 (EMC) standards for laboratory equipment.

Software & Data Management

Data acquisition and reporting are fully supported via HORIBA’s proprietary LAQUA Connect software (Windows-compatible), enabling bidirectional communication for instrument configuration, real-time data streaming, batch export to CSV/Excel, and customizable report generation. Each logged entry includes date/time stamp, parameter values, electrode IDs, calibration history, and operator ID (when configured). Audit trail functionality records all configuration changes, calibration events, and user logins—meeting FDA 21 CFR Part 11 requirements when deployed with appropriate IT controls and electronic signature implementation. Firmware updates are delivered via secure USB drive or direct serial download, ensuring long-term compliance with evolving metrological and cybersecurity best practices.

Applications

• Pharmaceutical water systems: USP TOC verification support, PW/WFI conductivity mapping, and buffer preparation QC
• Environmental laboratories: EPA Method 120.1 (pH), 120.2 (conductivity), and ISO 5667-3 (sampling preservation) alignment
• Academic research: Electrolyte behavior studies, membrane fouling assessment, and ion-selective transport modeling
• Municipal utilities: Drinking water compliance monitoring per WHO Guidelines and EU Directive 98/83/EC
• Industrial process control: Cooling tower chemistry management, boiler feedwater analysis, and semiconductor rinse water qualification

FAQ

Does the PC2000 support GLP-compliant data archiving?
Yes—its 2000-point timestamped memory, real-time clock, and password-protected configuration ensure full traceability. When paired with LAQUA Connect and documented SOPs, it satisfies core GLP data integrity requirements.
Can I use non-HORIBA electrodes with this analyzer?
The PC2000 accepts standard BNC and phono connectors and is compatible with any industry-standard pH, ORP, ISE, or conductivity electrodes meeting ANSI/ISA-5.1 signal conventions—but HORIBA-certified electrodes guarantee optimal performance and warranty coverage.
How is conductivity accuracy maintained across wide concentration ranges?
Through auto-ranging circuitry, programmable cell constants, adjustable reference temperature, and selectable temperature compensation models—enabling adherence to ISO 7888 tolerances across five decades of conductivity (μS/cm to S/cm).
Is the instrument suitable for field-deployable use?
While designed as a benchtop unit for lab stability, its compact footprint (155 × 150 × 67 mm), lightweight chassis (770 g), and AC/DC adaptability allow controlled mobile deployment—though ambient temperature control and vibration isolation remain critical for metrological validity.
What validation documentation is provided with the instrument?
Each unit ships with a Factory Calibration Certificate traceable to NIST standards, CE Declaration of Conformity, IEC 61010-1 safety report, and full technical manual—including uncertainty budgets for each parameter at defined operating conditions.