New Product Conductive Level Controller K8AK-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 k for application to a wide range of liquids. Prevents chattering of relay contacts that occurs with ripples. Easy wiring with ferrules. 2 2 Use 2 2.5 mm solid wire or 2 1.5 mm ferrules. Applicable as a floatless switch. Refer to Safety Precautions on page 7. For the most recent information on models that have been certified for safety standards, refer to your OMRON website. Ordering Information Power supply voltage Model 24 VAC/DC K8AK-LS1 24 VAC/DC 100 to 240 VAC K8AK-LS1 100240 VAC Accessories (Order Separately) Electrode Holders/Underwater Electrodes For resistance to For general-pur- When mounting For installation at For areas with For liquids with high-temperature For resistance Application pose use, such as strength is re- long distances limited space low resistance or high-pressure against corrosion water supply lines quired from the liquid level liquids PS-31 Model PS-3S/-4S/-5S BF-1 BF-3/-5 BS-1 BS-1T PH-1/-2 SUS304, 300 mm SUS PH-2 Appearance HAS PH-1 titanium Electrode Rods Electrode Rods are available in sets with the connection nuts, lock nuts, and tightening screws. Purified water service, industrial water, sewage, and weak Application Purified water service, industrial water, and sewage alkaline solutions Model F03-60 SUS304 F03-60 SUS316 Others Item Model Protective Cover (Electrode Holders for the PS F03-11 or BF Series) Mounting Piece F03-12 (Electrode Holder for the PS Series) Separator (to prevent contact between electrodes) F03-14 1P (one pole) F03-14 3P (three poles) F03-14 5P (five poles) 1K8AK-LS Ratings and Specifications Ratings Specifications 24 VAC 50/60 Hz or 24 VDC Operating voltage Power supply voltage 85% to 110% of rated voltage 100 to 240 VAC 50/60 Hz range Voltage across electrodes 5 V p-p (Approx. 20 Hz) Installation environ- Installation category II, pollution level 2 ment 24 VAC/DC: 2.0 VA/1.1 W max. Power consumption 100 to 240 VAC: 4.6 VA max. Approved standards EN 61010-1 Operating resistance 10 k to 100 k (variable) EMC EN 61326-1 Industrial electromagnetic environment Reset resistance 250 k max. UL 508 (Recognition), Safety standards Korean Radio Waves Act (Act 10564), Response time Approx. 0.1 to 10 s (variable) CSA: C22.2 No.14, CCC: GB/T 14048.5 2 100 m max. (fully insulated 3-core 0.75-mm cab- Length of cable 20 M min. tyre cable, 600 V) Between all external terminals and the case Indicators PWR: Green, RY: Yellow Between all power supply terminals and all input terminals Rated load Insulation resistance Between all power supply terminals and all output Resistive load terminals 5 A at 250 VAC Between all input terminals and all output termi- 5 A at 30 VDC nals Maximum switching capacity: 1,250 VA, 150 W Output contact ratings Minimum load: 5 VDC, 10 mA (reference values) 2,000 VAC for 1 min Mechanical life: 10 million operations min. Between all external terminals and the case Electrical life: Between all power supply terminals and all input 5 A at 250 VAC or 30 VDC: 50,000 operations terminals Dielectric strength 3 A at 250 VAC/30 VDC: 100,000 operations Between all power supply terminals and all output terminals Ambient operating 20 to 60C (with no condensation or icing) Between all input terminals and all output termi- temperature nals Storage temperature 25 to 65C (with no condensation or icing) 1,500 V power supply terminal common/normal Ambient humidity 25% to 85% (with no condensation) mode Noise immunity Square-wave noise of 1-s/100-ns pulse width with Storage humidity 25% to 85% (with no condensation) 1-ns rise time Altitude 2,000 m max. Frequency: 10 to 55 Hz, 0.35-mm single amplitude Vibration resistance Terminal screw 10 sweeps of 5 min each in X,Y, and Z directions 0.49 to 0.59 Nm tightening torque 2 Shock resistance 100 m/s , 3 times each in 6 directions along 3 axes Case color N1.5 Degree of protection Terminals: IP20 Case material PC and ABS, UL 94 V-0 Weight Approx. 150 g Mounting Mounts to DIN Track. Dimensions 22.5 90 100 mm (WDH) 2