22.5 mm wide conductive level controller
The K8AK-LS1 is a conductive level controller in a 22.5 mm wide industrial housing. Via DIP switchesits function(supply or drainage)can be selected.This productis for single- or two-point level control.
• Time delay function up to 10 s
• Supply voltages: 24 VAC/DC and 100 to 240 VAC
• Control output:Relay 5 A at 250 VAC resistive load
• Probes cable length: Max. 100 m from controller
•LED indicator: Green for power ON, yellow for output relay
Supply voltage Order code
24 VAC/VDC K8AK-LS1 24VAC/DC
100 to 240VAC K8AK-LS1 100-240VAC
ApplicationsMounting style Insulator materialMax. temperature Number of electrodes
For city water and other general use.
Easy-to-replace separate versions for maintenance.
FlangePhenol resin 70°C3PS-3S
When mounting space is limited.
Special 3-pole holder of small size and light weight.
Screw Phenol resin 3, 300 mm
3, 1000 mm
Use for sewage, sea water, etc., having a low specific resistance.
For resistance to high pressure.
Use in tanks with high temperature or pressure.
Flange PPS150°C (without water drips or vapour on the1BF-1 electrode holder surface)
Screw Fluoro resin250°C (without water drips or vapour on the1BS-1 surface of the electrode holder)
Electrode separatorsNumber of electrodes
Electrodes, connecting, and lock nuts
Applicable liquids Material Component Indication mark InscriptionOrder code
Purified city water, industrial water, sewage Equivalent to
Electrode (1 m long) 1 line –F03-01 SUS201
Connecting nut––F03-02 SUS201
Lock nut ––F03-03 SUS201
Purified city water, industrial water, sewage, dilute alkaline solution
Electrode (1 m long) 2 lines –F03-01 SUS316
Connecting nut–6F03-02 SUS316
Lock nut –316F03-03 SUS316
Ambient operating temperature –20 to 60°C (with no condensation or icing) Storage temperature –25 to 65°C (with no condensation or icing) Operating voltage range85% to 110% of rated operating voltage Rated power supply frequency 50/60 Hz (AC power supply)
Output relaysResistive load 5 A at 250VAC or at 30 VDC Maximum contact voltage 250VAC or 30 VDC Maximum contact current5 A
Maximum switching capacity1,250 VA, 150 W
Mechanical life 10,000,000 operations
Electrical life50,000 operations at 5 A, 250VAC or 30 VDC
Degree of protection Terminal section: IP20
Case materialPC and ABS
WeightApprox. 150 g
Operating resistance10 k to 100 k (variable)
Reset resistance250 k max.
Response timeApprox. 0.1 to 10 s (variable)
Cable length100 m max. with completely insulated (600V) cabtire cable with 3 conductors (0.75 mm2)
IndicatorsGreen LED: Power, Yellow LED: Control output
Applicable standards Conforming standardsEN 61010-1
Installation environment (pollution level 2, installation category II)
Safety standards EN 60664-1UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC
Size in mm (H × W × D)90 × 22.5 × 100