cld2ea1c230 – cond.level 2+1 dpdt din

Why Choose the Carlo Gavazzi CLD2EA1C230 Conductive Liquid Level Controller?

The Carlo Gavazzi CLD2EA1C230 is a DIN rail-mounted two-point conductive liquid level controller designed for automatic filling and emptying of tanks, reservoirs and industrial liquid storage systems. Part of the Carlo Gavazzi CLD Series, this controller monitors liquid conductivity through external electrode probes and operates relay outputs to control connected pumps, valves and associated equipment.

Operating from a 230 V AC nominal supply, the CLD2EA1C230 provides adjustable sensitivity from 250 Ω to 500 kΩ, making it suitable for monitoring a range of electrically conductive liquids. Its two-point control arrangement enables automatic regulation between upper and lower liquid levels.

With two changeover relay outputs rated at 8 A at 250 V AC, compact 35.5 × 81 × 60.2 mm dimensions and IP20 protection, the CLD2EA1C230 offers a practical solution for industrial liquid level monitoring and automated tank management.

Key Advantages

• Two-point liquid level control enables automatic monitoring of upper and lower liquid levels.
• Filling and emptying functions support automatic tank management.
• 230 V AC nominal supply for industrial control panel installations.
• Adjustable sensitivity from 250 Ω to 500 kΩ accommodates different conductive liquids.
• Two changeover relay outputs provide flexible switching and signalling options.
• 8 A at 250 V AC contact rating for suitable electrical control loads.
• DIN rail mounting simplifies integration into control panels.
• Compact 35.5 mm width helps conserve enclosure space.
• Integrated LED status indication supports monitoring and troubleshooting.
• Non-mechanical liquid detection uses conductive electrode probes rather than moving floats.

Key Features

• Carlo Gavazzi CLD Series conductive level controller.
• Two-point liquid level monitoring.
• Selectable filling and emptying control functions.
• Three electrode probe connections for common, minimum and maximum level detection.
• Adjustable liquid conductivity sensitivity.
• Two changeover relay outputs.
• Nominal 230 V AC supply voltage.
• Approximately 1 s switching response time.
• Low-voltage AC sensing at the electrodes.
• Screw-terminal electrical connections.
• DIN rail-mounted enclosure.
• IP20 ingress protection.
• LED operating status indication.
• Suitable for conductive liquids in industrial tanks and reservoirs.

How the Carlo Gavazzi CLD2EA1C230 Works

The CLD2EA1C230 measures the electrical conductivity between electrode probes installed at selected levels within a tank or reservoir. When a conductive liquid reaches an electrode, it completes a low-energy sensing path that allows the controller to determine whether the corresponding level has been reached.

For automatic filling, the controller can start the filling process when the liquid falls below the lower sensing point and stop it when the upper sensing point is reached. This helps maintain the liquid level within a defined operating range.

For automatic emptying, the operating sequence can be reversed, enabling a pump or valve control circuit to remove liquid when the upper level is reached and stop when the liquid falls to the lower level.

The controller's adjustable sensitivity allows the sensing circuit to be configured for different conductive liquids. Its relay outputs can be incorporated into suitable pump starter, contactor, valve control or monitoring circuits, provided the electrical load and switching requirements are respected.

The CLD2EA1C230 is intended for electrically conductive liquids. It is not suitable for direct conductivity-based detection of non-conductive liquids such as oils or many hydrocarbon-based fluids.

Typical Applications

• Automatic water tank filling systems.
• Reservoir and storage tank level control.
• Industrial pump control panels.
• Automatic tank emptying systems.
• Water treatment and processing equipment.
• Wastewater and drainage installations with suitable conductive liquids.
• Industrial process liquid monitoring.
• Machinery coolant level management where liquid conductivity is suitable.
• Building services water management.
• OEM liquid handling and automation systems.