The Hitachi HIRANUMA GR-522BZ Combination Electrode, 0.6 m (D254702-A; JMG code HIRAN-D254702-A) is a glass-reference combination electrode designed for neutralisation titration in test tubes or closed cells. It operates from 0–80°C, uses 4M KCl inner solution and is listed for COM-300A and COM-A19 automatic titrators.
Key Features
- Combined glass and reference electrode design, integrating both electrode functions into one assembly
- Designed for neutralisation titration, supporting applicable acid and base determinations
- Suitable for test tubes and closed cells, providing a dedicated configuration for smaller vessels
- Minimum vessel diameter of 18 mm, as specified for compatible test tubes and cells
- Supports vessels up to 105 mm high, based on the manufacturer’s stated closed-cell configuration
- Operating temperature range of 0–80°C, provided the sample solution remains unfrozen
- 4M potassium chloride inner solution, as specified for the GR-522BZ configuration
- Integrated 0.6 m cable, providing connection reach around the titration station
- Compatible titrator configuration, listed for HIRANUMA COM-300A and COM-A19 systems
- Optional closed-cell accessories available, including closed-cell lid D201950-A and cell stay E261508-1
Note: The closed-cell lid and cell stay are sold separately. Confirm the electrode connection and instrument configuration before ordering.
Benefits
- Reduces the number of separate electrodes required by combining the glass indicator and reference functions.
- Supports titration in test tubes and compact closed cells where vessel space may be limited.
- Provides a defined temperature range and inner solution for reliable electrode selection.
- Helps laboratories identify the correct replacement through clear GR-522BZ and D254702-A references.
- Allows the measurement setup to be completed with manufacturer-listed closed-cell accessories when required.
Why Choose the Hitachi HIRANUMA GR-522BZ Combination Electrode, 0.6 m (D254702-A)?
The GR-522BZ combines glass indicator and reference functions in a configuration designed for neutralisation titration in test tubes and closed cells. John Morris Group can assist with confirming COM-300A or COM-A19 compatibility and selecting the appropriate closed-cell accessories.
