Four-channel level controller RU4

Four-channel level signaling regulator (RU4) is a universal regulator. It is used to create systems for automatic maintenance of the liquid level in tanks, storage tanks, systems for controlling network pumps. RU4 can work with liquids of different electrical conductivity: distilled, tap, polluted water, milk and food products (weakly acidic, alkaline, etc.).

Sensor types

• conductometric sensors;
• Dry contact;
• open collector.

Main functions of RU4

• automatic filling / emptying of the tank according to the hysteresis law;
• the ability to protect the submersible pump from "dry running";
• semi-automatic and automatic control mode for two independent pumps;
• control of the lower and upper emergency levels;
• light indication of the state of input, output devices and operating mode;
• changing the parameters of the sensitivity of the sensors;
• “Control via RS-485” mode (for RU4-03), allows controlling executive devices using commands received via RS-485.

Manufacturing modifications

• case for mounting on a DIN rail: RU4-02 in D4 case (70mm case width), RU4-03 in D6 case (105mm case width);
• two power supply modifications: from an alternating voltage network with a nominal value of 110..240V or from a constant voltage source with a nominal value of 12..24V;
• isolated RS-485 (only for RU4-03);
• types of output devices: K, S, OK, OS, R.