Finder 072.503 – 72 Series Level control relays – Accessory

Why Choose the Finder 072.503 Electrode Separator?

The Finder 072.503 is a purpose-designed electrode separator for Finder Series 72 liquid level monitoring systems. Specifically intended for use with the Finder 072.53 three-pole electrode holder, this compact accessory helps maintain the correct separation between electrode rods installed in tanks, wells and other conductive liquid monitoring applications.

When multiple electrodes are installed together, particularly in deeper tanks where longer electrode assemblies are required, the rods may move or sway. The Finder 072.503 electrode separator helps prevent adjacent electrodes from touching, supporting the correct physical arrangement of the sensing probes and reducing the risk of unintended electrical contact between them.

The separator is especially useful in installations incorporating Finder 072.500 stainless steel electrodes and Finder 072.501 inter-electrode connectors. These components can be used together to construct electrode assemblies of the required length, while the 072.503 provides additional spacing support where appropriate.

Identified by manufacturer part number 072.503, this genuine Finder accessory is suitable for professional liquid level control installations associated with Finder Series 72 monitoring relays, including the 72.01 and 72.11. It is a passive mechanical component and does not independently detect liquid levels or operate electrical switching circuits.

Key Advantages

• Genuine Finder Series 72 accessory designed for compatible liquid level monitoring installations.
• Designed for the Finder 072.53 three-pole electrode holder to support correct electrode positioning.
• Helps prevent electrode rods from touching during movement or swaying.
• Maintains separation between multiple electrodes in suitable sensing assemblies.
• Particularly useful with extended electrode arrangements in deeper tanks and wells.
• Supports reliable operation of appropriately designed conductive liquid level monitoring systems.
• Compatible with assemblies using Finder 072.500 electrode rods.
• Can be incorporated into electrode arrangements extended using Finder 072.501 connectors.
• Compact mechanical accessory requiring no independent electrical supply.
• Suitable for new installations, maintenance and replacement applications.
• Useful for water management, tank monitoring and industrial process control systems.
• Manufacturer reference 072.503 allows straightforward identification and ordering.

Key Features

• Manufacturer: Finder
• Manufacturer reference: 072.503
• Product series: Finder Series 72
• Product type: Electrode separator
• Primary function: Maintaining separation between electrode rods
• Designed for: Finder 072.53 three-pole electrode holder
• Associated electrode: Finder 072.500
• Associated electrode connector: Finder 072.501
• Associated monitoring relays: Finder 72.01 and 72.11
• Installation arrangement: Multiple-electrode liquid level sensing assemblies
• Helps prevent contact between adjacent electrodes.
• Useful where long electrodes may sway within a tank or well.
• Supports stable electrode positioning within a compatible installation.
• Passive mechanical accessory with no independent sensing electronics.
• No operating coil or switching contacts.
• No independent power supply required.

Maintain Correct Electrode Separation in Liquid Level Monitoring Systems

The main purpose of the Finder 072.503 electrode separator is to help maintain physical separation between multiple electrode rods used in a conductive liquid level monitoring system.

Conductive liquid monitoring installations often use two or three electrodes positioned at different heights within a tank or well. These electrodes are connected to a suitable monitoring relay, which detects electrical conductivity through the liquid and responds according to its configured operating function.

Where electrodes are relatively short, their position may be adequately controlled by the electrode holder and the mechanical rigidity of the rods. However, in deeper installations, longer electrode assemblies may be required to reach the desired sensing positions.

Longer electrodes can be more susceptible to movement. Liquid flow, vibration, turbulence or the natural flexibility of the assembled rods may cause the electrodes to sway.

If adjacent electrodes touch, an unintended electrical connection may occur between them. This can interfere with the intended sensing arrangement and may cause incorrect liquid level detection or unexpected monitoring relay operation.

The Finder 072.503 helps address this issue by maintaining spacing between the electrode rods. It is therefore an important mechanical accessory in suitable multi-electrode installations, particularly where extended probes are used.

Designed for the Finder 072.53 Three-Pole Electrode Holder

Finder identifies the 072.503 electrode separator as an accessory for the Finder 072.53 three-pole electrode holder.

The Finder 072.53 is designed to support a three-electrode arrangement in suitable liquid level monitoring applications. It provides the mounting and connection arrangement for multiple sensing electrodes, allowing their positions to be established within a tank or well.

The 072.503 complements this arrangement by helping keep the electrode rods separated further along their length.

This distinction is important because the 072.53 electrode holder and the 072.503 separator perform different mechanical functions. The holder provides the main mounting arrangement, while the separator helps maintain spacing between the installed electrode rods.

The Finder 072.503 should not be assumed to fit every electrode holder or sensing probe arrangement. Its documented compatibility is specifically associated with the Finder 072.53 three-pole electrode holder.

Ideal for Extended Finder 072.500 Electrode Assemblies

Finder's Series 72 accessories include the 072.500 stainless steel electrode and 072.501 inter-electrode connector.

The 072.500 is an electrode rod with an M4 threaded connection. Finder's current Series 72 documentation specifies a nominal electrode length of 475 mm, although some older documentation describes a 500 mm version.

The Finder 072.501 connector allows multiple compatible electrode rods to be joined together to create a longer sensing assembly. This is useful when an electrode must reach a specific liquid level within a deeper tank.

As the overall electrode length increases, maintaining suitable separation between neighbouring rods becomes increasingly important. The Finder 072.503 separator provides additional mechanical support by helping prevent the electrodes from coming into contact with one another.

The number and positioning of separators required for an installation should be determined according to the electrode length, tank conditions and Finder's installation guidance.

The separator does not join electrode rods end to end. That function is performed by the Finder 072.501 inter-electrode connector. The 072.503 is used to maintain separation between adjacent electrodes.

Supporting Conductive Liquid Level Control Applications

Finder Series 72 monitoring relays are designed for liquid level control applications involving electrically conductive liquids.

A typical system uses sensing electrodes positioned within a tank or vessel. The monitoring relay detects the electrical condition between the electrodes and controls its output according to the selected operating mode.

Depending on the system configuration, this can support applications such as automatic tank filling, tank emptying, high-level monitoring and low-level control.

The Finder 072.503 electrode separator does not perform the sensing function itself. Instead, it helps preserve the intended physical arrangement of the electrodes that form part of the sensing circuit.

For example, a three-electrode arrangement may use separate electrodes for common reference, minimum level and maximum level detection. Maintaining appropriate spacing between the electrodes helps prevent unwanted direct contact that could compromise the intended control arrangement.

This is particularly relevant where the liquid is moving, where a tank is relatively deep or where extended electrode assemblies are installed.

The overall suitability of a conductive liquid level monitoring system depends on the liquid conductivity, electrode configuration, monitoring relay settings, installation environment and associated control equipment.

Finder Series 72 Electrode Accessory Comparison

The Finder 072.503 is the correct accessory when the requirement is to maintain separation between electrodes in a compatible three-pole assembly. It should not be confused with the 072.501 connector, which is designed to join electrode sections together.

Installation and Maintenance Considerations

Before installing the Finder 072.503, confirm that the electrode assembly uses the compatible Finder 072.53 three-pole electrode holder and suitable electrode rods.

The separator should be positioned in accordance with Finder's installation instructions so that the electrodes remain correctly spaced without introducing excessive mechanical stress.

The required number of separators depends on the design of the complete electrode assembly. Longer rods, liquid turbulence and installation conditions may influence the amount of mechanical support required.

The electrodes should be checked for correct alignment and secure connections, particularly where multiple Finder 072.500 rods are joined using 072.501 connectors.

During maintenance, the separator should be inspected for damage, displacement or deterioration. Any damaged accessory should be replaced with a suitable manufacturer-approved component.

The complete liquid level monitoring system should also be checked to ensure that electrode spacing, wiring and monitoring relay settings remain appropriate for the application.

All installation and maintenance work should be carried out by appropriately qualified personnel following the relevant electrical safety procedures and manufacturer's documentation.

Typical Applications

• Finder 072.53 three-pole electrode holder installations.
• Multi-electrode conductive liquid level monitoring systems.
• Extended Finder 072.500 electrode assemblies.
• Industrial water storage tanks.
• Deep tank liquid level monitoring.
• Water treatment plant control systems.
• Reservoir monitoring installations.
• Well water level control systems.
• Automatic tank filling applications.
• Automatic tank emptying applications.
• High-level liquid detection arrangements.
• Low-level liquid detection arrangements.
• Industrial process liquid monitoring.
• Pump control systems incorporating suitable monitoring relays.
• Electrode installations subject to liquid movement or turbulence.
• Maintenance and refurbishment of Finder Series 72 sensing assemblies.