Quality Conductive Level Control with Omron

The 61F range of controllers and probes can be used for single or two point level control of conductive materials. Models include, standard, long distance, high sensitivity, low sensitivity and 2 wire for detecting materials such as purified water, industrial water, sewage, sea water and dilute alkaline solutions with operating ranges of up to 300kΩ. The various electrodes and probes cover many applications and can be mounted up to 4km away.

Mounted via din-rail the 61F-D21T level controller is ideal for space saving. There are 2 dials on the front, 1 for setting the operating resistance level and a 2nd for adding a time delay to stop the relay contacts chattering caused by waves/moving liquids. The controller can be used for both filling and drainage which is selectable with dip switches located on its side and is available in 24vac/dc and 100 to 240vac supply voltages with a 6A control output relay.

The K7L is an ultra-miniature liquid leakage sensor and amplifier. It has an operation range of up to 50MΩ selectable via dip switches, making it suitable to detect a wide range of liquids with low conductivity levels. There is a function to detect if the cables become disconnected or broken. Two LED’s (green) to show there is power supplied to the controller & (red) for output indication. It has a high immunity to electrical noise and the output can either be switched ON or OFF when liquid is detected. With various detecting probes available which can be connected up to 50 metres from the controller, the K7L is a very versatile liquid leakage sensor.

• Level control in tanks, reservoirs, sewage plants, underground wells, mixing plants, for element protection in pipes, channels and irrigation systems.
• Flow detection in pipes, channels and irrigation systems.
• Ice bank control in cold drink dispensers, ice makers, water chillers, bulk milk tanks.
• Indication of liquid build-up due to filter blockages.
• Pollution/foul water detection for rivers, drains.
• Alarm control warning of abnormal or dangerously high or low level.

1. Liquid Leakage Detection for Measuring Baths in CMP Devices - Liquid leaked to drain pans can be detected to prevent damage to devices and cleaning irregularities for wafers.
2. Detection of Liquid Leakage at Pipe Joints for Liquid Chemical Tanks - Liquid leakage at a pipe joint can be detected by wrapping the Sensing Band around the joint.
3. Detection of Condensation and Liquid Leakage at Semiconductor Production Installations - Detection is also possible for condensation inside cleaning devices and liquid leaked to the surroundings.
4. Detection of Cleaning Fluid Level for Plating Devices - The level of pure water is detected inside plating baths. High sensitivity allows high-accuracy control to prevent cleaning irregularities.