Honeywell PH electrode DL2-742-0003

The Honeywell DL2-742-0003 is a high-performance, industrial-grade pH electrode designed for continuous process monitoring and control in demanding applications.

**Technical Specifications:**

*   **Model:** DL2-742-0003

*   **Electrode Type:** Combination pH electrode with integrated temperature sensor (pH/ATC).

*   **pH Range:** 0 to 14 pH.

*   **Temperature Range:** 0 to 100 °C (32 to 212 °F).

*   **Pressure Range:** 0 to 6 bar (0 to 87 psi).

*   **Reference System:** Sealed, gel-filled, Ag/AgCl. Designed for low maintenance and reduced electrolyte refilling.

*   **Junction Type:** Open, ceramic junction, suitable for a variety of process media.

*   **Electrode Body Material:** Chemical-resistant glass.

*   **Shaft Material:** Epoxy body for robust physical and chemical protection.

*   **Process Connection:** 3/4" NPT thread for secure installation into standard immersion or flow-through assemblies.

*   **Cable:** Integrated, shielded cable with a fixed length (specific length may vary; consult factory data). Connector type is typically a DIN 7-pin or as specified for Honeywell analyzer compatibility.

*   **Temperature Sensor:** PT1000 (or equivalent platinum RTD).

*   **Application Compatibility:** Suitable for a wide range of industrial processes, including water treatment, chemical processing, pharmaceutical, and food & beverage.

**Product Description:**

The Honeywell DL2-742-0003 pH electrode is engineered for reliability and accuracy in continuous industrial pH measurement. Its combination design integrates both the pH sensing glass and a temperature-compensating element into a single, sturdy probe. The sealed, gel-filled reference system minimizes maintenance requirements by eliminating the need for frequent electrolyte refills. The robust epoxy shaft and chemical-resistant glass bulb ensure long service life in harsh process environments.

The open ceramic junction provides a stable liquid junction potential and is effective in many aqueous solutions. The integrated PT1000 temperature sensor enables automatic temperature compensation (ATC) when connected to a compatible analyzer, ensuring accurate pH readings across the specified temperature range. This electrode is designed for direct compatibility with various Honeywell process analyzers, facilitating easy integration into existing control systems for precise pH monitoring and regulation.