omRon Conductive Level ControllerK8AK-LS Ideal for Liquid Level Control in Industrial Facilities and Equipment. • Self-holding circuit implemented with circuit processing that is not depending on external wiring. • Switch between water supply and discharge with a DIP switch setting. • Sensitivity adjustment of operating resistance from 10 k to 100 kQ for application to a wide range of liquids. • Prevents chattering of relay contacts that occurs with ripples. • Easy wiring with ferrules. • Use 2 x 2.5 mm2 solid wire or 2 x 1.5 mm2 ferrules. •Applicable as a floatless switch. A Refer to Safety Precautions on page 7. Ordering Information Power supply voltage Accessories (Order Separately) •Electrode Holders/Underwater Electrodes

Connections Terminal Diagram K8AK-LS1 100-240VAC A Relay Output Control Output Common Relay output 250 VAC, 5 A (resistive load) 30 VDC, 5 A (resistive load) A Water Level Inputs 14 Water or other liquid B Power Supply Voltage 100 to 240 VAC A1 Note: 1. Do not connect anything to terminals that are shaded in gray. 2. Use the recommended ferrules if you use twisted wires. Three-phase power supply Power supply AC/DC Power supply voltage Water or other liquid Source of liquid Pump motor protection mechanisms have been omitted.

E3 When the liquid level falls to E2 (indicator turns ON), the pump starts. When the liquid level rises above E1 (indicator turns OFF), the pump stops. When the liquid level reaches E1 (indicator turns ON), the pump starts. When the liquid level falls below E2 (indicator turns OFF), the pump stops.

NomenclatureFront Panel For a solid wire of 2.5-mm2 of max. Note: All pins are set to OFF by default.

Conductive Level Controller K8AK-LS 22.5 Optional Parts for DIN Track Mounting ●DIN Tracks PFP-100N PFP-50N

Safety Precautions Be sure to read the precautions for all models in the website at the following URL: http://www.ia.omron.com/. Warning Indications There is a risk of minor electrical shock, fire, or device failure. Do not disassemble, modify, repair, or touch the inside of the product. Loose screws may cause fires. Tighten terminal screws to the specified torque of 0.49 to 0.59 N-m. Use of excessive torque may damage the terminal screws. Tighten terminal screws to the specified torque of 0.49 to 0.59 N-m. Use of the product beyond its life may result in contact welding or burning. Make sure...

Precautions for Safe Use 1. Do not use or store the product in the following locations. • Locations subject to water or oil • Outdoor locations or under direct sunlight • Locations subject to dust or corrosive gases (particularly sulfurizing gases, ammonia, etc.) • Locations subject to rapid temperature changes • Locations prone to icing and dew condensation • Locations subject to excessive vibration or shock • Locations subject to wind and rain • Locations subject to static electricity and noise Observe the following operating methods to prevent failure and malfunction. 1. Use the power supply...

Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR...

Industrial Automation Company www.ia.omron.com Authorized Distributor: Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69-2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC One Commerce Drive Schaumburg, IL 60173-5302 U.S.A. Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 OMRON ASIA PACIFIC PTE. LTD. No. 438A Alexandra Road # 05-05/08 (Lobby 2), Alexandra Technopark, Singapore 119967 Tel: (65) 6835-3011/Fax: (65) 6835-2711 OMRON (CHINA) CO., LTD. Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel:...