HACH sensION+ Benchtop pH Meter

Overview

The HACH sensION+ Benchtop pH Meter is a precision-engineered electrochemical measurement system designed for routine and regulatory-compliant pH analysis in quality control laboratories, environmental testing facilities, and academic research settings. Based on potentiometric measurement principles using glass membrane electrodes, the instrument delivers stable, reproducible readings across the full aqueous pH scale (0–14). Its benchtop architecture integrates core analytical functions—including temperature compensation (via integrated or external Pt1000 sensor), automatic electrode diagnostics, and real-time mV monitoring—into a single, self-contained platform. Unlike portable or handheld variants, the sensION+ benchtop configuration prioritizes long-term stability, operator ergonomics, and seamless integration into GLP- and GMP-aligned workflows. The system adheres to fundamental metrological requirements defined in ISO 7888, ASTM D1293, and USP , supporting traceable calibration and documented measurement integrity.

Key Features

• Integrated magnetic stirrer with adjustable speed control, enabling consistent sample homogenization during measurement without external accessories.
• Sealed, chemical-resistant keypad with IP65-rated front panel—engineered for durability in wet laboratory environments and resistant to common reagents including dilute acids, bases, and buffer solutions.
• High-contrast backlit LCD display (128 × 64 pixels) with intuitive icon-driven navigation menu, supporting rapid method selection and parameter review.
• Built-in electrode holder accommodating single- or triple-electrode configurations (e.g., pH, ORP, and conductivity probes), with dedicated slots for calibration standards and storage vials.
• Onboard calibration management supporting up to three-point pH calibration using user-defined standard solutions; automatic recognition of NIST-traceable buffers (e.g., pH 4.01, 7.00, 10.01) is optional via firmware configuration.
• Internal memory stores ≥1000 data points with timestamp, electrode ID, temperature, and calibration history—exportable via USB to CSV or Excel-compatible formats.

Sample Compatibility & Compliance

The sensION+ Benchtop pH Meter is validated for use with aqueous liquid samples across diverse matrices: drinking water, wastewater effluents, pharmaceutical formulations, food extracts, and chemical process streams. It supports standard combination pH electrodes (BNC or DIN connectors) and is compatible with HACH’s proprietary IntelliCAL™ series (e.g., PHC101, PHC735), which feature built-in temperature sensors and digital electrode identification. All operational procedures align with Good Laboratory Practice (GLP) documentation requirements, including mandatory audit trails for calibration events, user logins, and method changes. The device meets IEC 61010-1 safety standards for electrical equipment and complies with electromagnetic compatibility (EMC) directives per EN 61326-1. For regulated industries, optional software modules support 21 CFR Part 11 compliance through electronic signatures, role-based access control, and immutable data archiving.

Software & Data Management

Data acquisition and reporting are facilitated through HACH’s LogSoft™ desktop application (Windows-compatible), which enables remote instrument configuration, batch calibration validation, and statistical process control (SPC) charting. Raw measurement logs include metadata such as operator ID, ambient temperature, electrode slope (%), and asymmetry potential—critical for troubleshooting drift or contamination. Exported datasets retain full traceability, including calibration certificate references and uncertainty estimates derived from electrode performance history. Firmware updates are delivered via secure HTTPS download and installed through USB mass-storage mode, ensuring version control and cybersecurity alignment with NIST SP 800-53 guidelines.

Applications

• Environmental monitoring: EPA Method 150.1-compliant pH verification in surface water, groundwater, and treated effluent.
• Pharmaceutical manufacturing: In-process pH checks during buffer preparation and final product release testing per USP .
• Food & beverage QA/QC: Consistency verification of acidified products (e.g., sauces, dairy, beverages) prior to packaging.
• Academic teaching labs: Student-facing interface with multilingual prompts (English, Spanish, French, Portuguese, Chinese, and 13 additional languages) supports international curricula.
• Industrial process support: Routine monitoring of cooling tower water, boiler feedwater, and chemical dosing systems where alkalinity control is critical.

FAQ

Does the sensION+ Benchtop pH Meter support automatic temperature compensation (ATC)?

Yes—it accepts input from integrated or external Pt1000 temperature sensors and applies Nernstian correction in real time.
Can I perform calibration with non-standard buffer solutions?

Yes—user-defined calibration allows entry of custom pH values and associated temperatures for specialized applications.
Is the instrument suitable for ISO/IEC 17025-accredited laboratories?

Yes, when used with certified reference materials, documented procedures, and enabled audit-trail functionality.
What electrode types are supported?

Standard BNC or DIN-connectors accommodate most commercial pH, ORP, and combination electrodes; IntelliCAL™ smart electrodes enable plug-and-play recognition.
How is data security maintained during USB export?

Export files are unencrypted CSV structures; however, LogSoft™ supports password-protected project archives and encrypted backups compliant with organizational IT policies.