HORIBA Model 4163-10T Temperature Electrode for pH and ORP Compensation

Overview

The HORIBA Model 4163-10T is a precision platinum resistance temperature sensor (Pt1000-class) engineered for accurate, real-time temperature monitoring in electrochemical measurement systems. Designed exclusively for integration with HORIBA’s family of pH and ORP electrodes—including the TouPH series (e.g., 9615-10D, 9681-10D), sleeve-type electrodes (6367-10D), ISFET sensors (0040-10D), and specialized configurations such as flat-tip (6261-10C) and micro-tip (6252-10D)—this electrode delivers reliable thermal data required for Nernst equation-based compensation. Its operating principle relies on the predictable, linear resistance–temperature relationship of high-purity platinum wire, enabling stable output across the full 0–100 °C range. Unlike general-purpose thermistors or digital probes, the 4163-10T features a chemically inert glass body and PTFE-shielded lead wires compatible with aqueous, low-conductivity, and non-aqueous media—ensuring long-term stability in laboratory, QC, and process environments where trace-level accuracy and drift resistance are critical.

Key Features

• Pt1000-class platinum resistance sensor with ±0.2 °C accuracy over 0–100 °C (per IEC 60751 Class B specification)
• Integrated dual-wire configuration optimized for direct connection to HORIBA LAQUA twin-channel meters (e.g., LAQUA Twin, LAQUA α-2000) and multi-parameter benchtop analyzers
• Chemically resistant borosilicate glass shaft and PTFE-insulated cable rated for continuous immersion in pH buffers, calibration standards, and aggressive electrolytes
• Compact 12 mm × 120 mm cylindrical form factor with threaded M12 connector for secure mounting alongside pH/ORP electrodes in flow cells or immersion housings
• No internal reference junction or electrolyte fill—eliminates maintenance, refilling, or clogging concerns associated with combination electrodes
• Designed for automatic temperature compensation (ATC) per ASTM D1293 and ISO 10523 protocols during pH and redox potential measurements

Sample Compatibility & Compliance

The 4163-10T is validated for use with all HORIBA pH and ORP electrode models requiring external temperature input, including but not limited to: 9615-10D (standard TouPH), 9681-10D (high-precision TouPH), 6367-10D (sleeve-type), 0040-10D (flat ISFET), and 6252-10D (micro-tip). It supports measurements in deionized water (conductivity < 5 µS/cm), ethanol–water mixtures, and buffered saline solutions without signal drift or thermal lag. The device complies with RoHS Directive 2011/65/EU and meets electromagnetic compatibility requirements per EN 61326-1:2013 for laboratory instrumentation. When deployed in regulated environments—such as pharmaceutical QC labs operating under USP , EP 2.2.3, or FDA 21 CFR Part 11—the 4163-10T contributes to audit-ready temperature traceability when paired with HORIBA’s GLP-compliant data loggers and software platforms.

Software & Data Management

The electrode interfaces natively with HORIBA’s LAQUA Smart Software (v3.0+) and LabSolutions LAQUA Suite, enabling synchronized timestamped logging of temperature alongside pH, mV, and conductivity readings. All acquired temperature values are embedded in .csv and .lqs export files with metadata fields including sensor ID (3014080375), calibration date, and probe status flags. The system supports configurable ATC activation thresholds and allows manual override for validation studies. For networked installations, the 4163-10T integrates into HORIBA’s LAQUA Cloud platform via Ethernet-enabled controllers, supporting remote monitoring, alarm triggers (e.g., >95 °C alert), and automated report generation compliant with ISO/IEC 17025 documentation requirements.

Applications

• Automatic temperature compensation in routine pH titrations per ASTM E70 and ISO 3696
• Stabilizing ORP measurements in disinfection control (chlorine, ozone, chlorine dioxide) per EPA Method 300.0
• Monitoring thermal drift during long-duration stability testing of reference electrodes and buffer solutions
• Supporting regulatory submissions requiring documented temperature correlation in method validation (ICH Q2(R2))
• Enabling reproducible calibration across multi-site laboratories using standardized HORIBA electrode configurations
• Integration into bioreactor and fermentation monitoring systems where simultaneous pH and temperature feedback is essential

FAQ

Can the 4163-10T be used independently as a standalone thermometer?
No—it lacks an internal display or analog/digital output circuitry; it must be connected to a compatible HORIBA meter or data acquisition module with Pt1000 input capability.
Is calibration required before first use?
Factory-calibrated at three points (0 °C, 25 °C, 100 °C); optional user verification using certified ice bath and boiling point standards is recommended prior to GxP applications.
What is the maximum immersion depth?
Fully submersible up to 1 m static head pressure; avoid mechanical stress on the cable entry point during prolonged agitation or pumping.
Does this electrode support autoclaving?
No—glass body and PTFE insulation are not rated for steam sterilization; use only chemical disinfection (e.g., 70% ethanol wipe).
Why must it not be used simultaneously with other temperature probes?
Electrical interference and ground-loop formation may occur when multiple temperature sensors share signal paths or power supplies, compromising measurement integrity and violating IEC 61000-4-6 immunity requirements.