Hanna HI98192 Professional Portable Multiparameter EC/TDS/Resistivity/NaCl/°C Meter

Overview

The Hanna HI98192 is a professional-grade, portable multiparameter meter engineered for high-accuracy measurement of electrical conductivity (EC), total dissolved solids (TDS), resistivity, salinity (as % NaCl, PSU, and seawater ppt), and temperature across laboratory, field, pharmaceutical, and environmental applications. It operates on the fundamental principle of four-electrode (tetrapolar) conductometry—eliminating polarization effects and contact resistance errors inherent in two-electrode systems—thereby ensuring stable, reproducible readings across wide dynamic ranges. Unlike conventional meters limited to single-parameter operation, the HI98192 integrates real-time, auto-ranging EC measurement with simultaneous calculation of derived parameters using configurable algorithms aligned with international standards including ISO 7888 (conductivity of water), ASTM D1125 (electrical conductivity of water), and USP (water conductivity for pharmaceutical use). Its dual-mode temperature compensation (linear, nonlinear, and NoTC) supports both process-critical and regulatory-compliant workflows, particularly where thermal drift must be rigorously controlled or intentionally excluded during absolute parameter validation.

Key Features

• Four-ring stainless steel conductivity probe (HI763133) with integrated Pt1000 temperature sensor and DIN connector—optimized for low-conductivity ultrapure water and high-salinity brines alike.
• Auto-ranging EC measurement across seven decades (0.000 µS/cm to 1000.0 mS/cm) with six selectable resolution modes and ±1% accuracy referenced to NIST-traceable standards.
• Simultaneous display of primary EC value and up to three derived parameters (e.g., TDS, resistivity, % NaCl) with user-selectable TDS conversion factor (0.40–1.00) and temperature reference (15°C, 20°C, or 25°C).
• USP compliance mode with dedicated conductivity acceptance criteria, automatic resistivity-to-conductivity conversion, and audit-ready logging of system suitability tests.
• GLP-compliant data management: timestamped calibration records, electrode diagnostics (cell constant, date of last verification), temperature coefficient (β), and reference temperature settings stored with each measurement.
• Rugged IP67-rated housing, battery-powered operation (4×AA, ~200 h), and intuitive on-screen calibration prompts with step-by-step guidance reduce operator error and training overhead.

Sample Compatibility & Compliance

The HI98192 is validated for use with aqueous samples ranging from deionized water (≥10 MΩ·cm) to saturated salt solutions (up to 400% NaCl w/w). Its tetrapolar electrode design prevents coating-induced drift in turbid, viscous, or particulate-laden matrices—making it suitable for wastewater effluent, hydroponic nutrient solutions, boiler feedwater, and coastal seawater monitoring. Regulatory alignment includes full support for USP Stage 1–3 conductivity testing, ISO 7888 reference temperature protocols, and ASTM D5391 (electrical conductivity of purified water). The instrument meets IEC 61010-1 safety requirements and is CE-marked for EMC and low-voltage directives. All calibration and measurement data adhere to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) when paired with HI92000-15 software and 21 CFR Part 11-compliant user account management.

Software & Data Management

Data export and traceability are enabled via USB interface and Hanna’s HI92000-15 PC software suite. This platform provides secure, encrypted data transfer with hierarchical user access control (10 independent accounts), electronic signature capability, and automated generation of PDF reports compliant with GLP/GMP documentation requirements. Logged datasets include measurement ID, date/time stamp, EC/TDS/resistivity/salinity values, temperature, cell constant, calibration history, and environmental conditions. Audit trails record all configuration changes, calibrations, and user logins with immutable timestamps—fully satisfying FDA 21 CFR Part 11 and EU Annex 11 expectations for regulated environments. Interval logging (5 s–180 min) supports long-term stability studies, while manual storage preserves critical spot-check results.

Applications

• Pharmaceutical water systems: USP Stage 1–3 conductivity verification of Purified Water (PW) and Water for Injection (WFI) at distribution points and point-of-use locations.
• Environmental monitoring: Field-based assessment of freshwater conductivity gradients, estuarine salinity transitions, and groundwater contamination plumes.
• Food & beverage QA/QC: Verification of brine concentration in pickling, fermentation, and preservation processes; TDS validation in brewing and dairy processing.
• Power generation: Monitoring condensate purity and demineralizer effluent resistivity in steam-cycle chemistry programs.
• Academic research: Teaching electrochemical fundamentals, calibrating custom sensors, and validating membrane performance in desalination studies.

FAQ

Does the HI98192 meet USP requirements for pharmaceutical water testing?
Yes. It implements all USP algorithmic corrections—including temperature normalization to 25°C, automatic resistivity-to-conductivity conversion, and Stage-specific pass/fail logic—and stores full calibration and measurement metadata required for audit readiness.
Can the HI98192 measure ultrapure water with resistivity >10 MΩ·cm?
Yes. Its extended resistivity range (up to 100.0 MΩ·cm) and tetrapolar sensing architecture minimize stray current interference, enabling reliable measurement of high-resistivity waters when used with proper grounding and low-contamination handling protocols.
Is temperature compensation mandatory for all measurements?
No. The instrument offers NoTC (No Temperature Compensation) mode for absolute conductivity/resistivity determination, as required by certain ISO and ASTM methods where thermal correction is explicitly excluded.
What calibration standards are supported for EC and salinity?
EC calibration uses seven built-in standard points (0, 84, 1413 µS/cm, 5.00, 12.88, 80.0, 118.8 mS/cm); salinity calibration requires HI7037 100% NaCl solution and is performed post-EC calibration to maintain metrological traceability.
How is data integrity ensured during field use?
IP67 ingress protection, non-volatile memory retention during battery replacement, and automatic timestamping—even during power loss—guarantee data continuity. All stored entries include checksum-verified metadata to prevent tampering or corruption.