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New Product

1

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 to 100 k

Ω

 

for application to a wide range of liquids.

• Prevents chattering of relay contacts that occurs with ripples.
• Easy wiring with ferrules.
• Use  2 

×

 2.5 mm

2

 solid wire or 2 

×

 1.5 mm

2

 ferrules.

• Applicable as a floatless switch.

Ordering Information 

Accessories (Order Separately)

Electrode Holders/Underwater Electrodes

Electrode Rods

Electrode Rods are available in sets with the connection nuts, lock nuts, and tightening screws.

Others

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.

Power supply voltage

Model

24 VAC/DC

K8AK-LS1 24 VAC/DC

100 to 240 VAC

K8AK-LS1 100

240 VAC

Application

For general-pur-
pose use, such as 
water supply lines

For areas with 
limited space

For liquids with 
low resistance

When mounting 
strength is re-
quired

For resistance to 
high-temperature 
or high-pressure 
liquids

For resistance 
against corrosion

For installation at 
long distances 
from the liquid level

Model

PS-3S/-4S/-5S

PS-31

SUS304, 300 mm

BF-1

BF-3/-5

BS-1

BS-1T

PH-1/-2

Appearance

SUS

HAS

titani

u

m

PH-1

PH-2

Application

Purified water service, industrial water, and sewage

Purified water service, industrial water, sewage, and weak 
alkaline solutions

Model

F03-60 SUS304

F03-60 SUS316

Item

Model

F03-11

F03-12

F03-14 1P (one pole)
F03-14 3P (three poles)
F03-14 5P (five poles)

Protective Cover 
(Electrode Holders for the PS 
or BF Series)

Mountin

g

 Piece 

(Electrode Holder for the PS Series)

Separator (to prevent contact between electrodes) 

Summary of Contents for K8AK-LS

Page 1: ...ent information on models that have been certified for safety standards refer to your OMRON website Power supply voltage Model 24 VAC DC K8AK LS1 24 VAC DC 100 to 240 VAC K8AK LS1 100 240 VAC Application For general pur pose use such as water supply lines For areas with limited space For liquids with low resistance When mounting strength is re quired For resistance to high temperature or high pres...

Page 2: ...color N1 5 Case material PC and ABS UL 94 V 0 Weight Approx 150 g Mounting Mounts to DIN Track Dimensions 22 5 90 100 mm W D H Operating voltage range 85 to 110 of rated voltage Installation environ ment Installation category II pollution level 2 Approved standards EN 61010 1 EMC EN 61326 1 Industrial electromagnetic environment Safety standards UL 508 Recognition Korean Radio Waves Act Act 10564 ...

Page 3: ...ut 250 VAC 5 A resistive load 30 VDC 5 A resistive load A Water Level Inputs LS1 B Power Supply Voltage 100 to 240 VAC 24 VAC DC No polarity 12 Relay Output Common Water or other liquid Control Output A2 A1 A2 A1 E1 E2 E3 11 14 12 Power supply voltage Water or other liquid E1 E2 E3 A1 A2 A1 A2 12 14 11 L1 L2 L3 Pump motor protection mechanisms have been omitted Source of liquid Motor Pump Three ph...

Page 4: ...cator turns ON the pump starts When the liquid level falls below E2 indicator turns OFF the pump stops Power supply voltage A1 A2 Electrode terminals E2 E3 Electrode terminals E1 E3 Control output terminals 11 14 operation indication P OFF stop ON start Operation indicator OFF Operation indicator ON E1 E2 E3 Power supply voltage A1 A2 Electrode terminals E2 E3 Electrode terminals E1 E3 Control out...

Page 5: ...es not have SW2 DIP Switch Function Note All pins are set to OFF by default Operating time knob Power indicator Relay status indicator Operating resistance knob Terminal block See notes 1 and 2 Terminal block See notes 1 and 2 Item Description Power indicator PWR Green Lit when power is being sup plied Relay status indicator RY Yellow Lit when contacts are operating Item Description Operating resi...

Page 6: ...Conductive Level Controller Optional Parts for DIN Track Mounting 22 5 90 100 72 5 K8AK LS DIN Tracks PFP 100N PFP 50N Dimensions in parentheses are for the PFP 50N 4 5 15 25 25 10 10 1 000 500 25 25 15 5 35 0 3 7 3 0 15 27 0 15 1 ...

Page 7: ...ecified 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 to consider the actual operating conditions and use the product within its rated load and electrical life count The life of the output relay varies significantly with the switching capacity and switching conditions CAUTION Indicates a potentially hazardous situation which if not...

Page 8: ...ke sure the indicators operate correctly Depending on the application environment the indicators may deteriorate prematurely and become difficult to see 15 The terminal blocks may heat up to 65 C Use care when handling them 16 Do not use the product if it is accidentally dropped The internal components may be damaged 17 Be sure you understand the contents of this catalog and handle the product acc...

Page 9: ...MEMO 9 ...

Page 10: ...MEMO 10 ...

Page 11: ... CONNECTED WITH THE PRODUCTS WHETHER SUCH CLAIM IS BASED IN CONTRACT WARRANTY NEGLIGENCE OR STRICT LIABILITY Further in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted Suitability of Use Omron Companies shall not be responsible for conformity with any standards codes or regulations which apply to the combination of the Product i...

Page 12: ...S A Tel 1 847 843 7900 Fax 1 847 843 7787 Regional Headquarters OMRON EUROPE B V Wegalaan 67 69 2132 JD Hoofddorp The Netherlands Tel 31 2356 81 300 Fax 31 2356 81 388 Contact www ia omron com Tokyo JAPAN 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...

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