Industrial Automation

61F-LS

Floatless Level Switch (Compact, Plug-in Type)

61F-LS

Consolidates the Specifications through Free Power Supply, thus Allowing Use in High Temperature Environments with Temperatures of Up to 70°C* * Excluding the DC power supply type.

last update: April 1, 2022

Specifications

Ratings

	61F-LS-CP[]-N (Normal)	61F-LS-CP[]-S/-A (High functionality)	61F-LS-CP11-B (DC power supply)
Controlling materials and operating conditions	• For control of ordinary purified water or sewage water • For control of ordinary purified water or sewage where operating ambient temperature is high. • For control of ordinary purified water in cases where the distance between sewage pumps and water tanks or between receiver tanks and supply tanks is long or where remote control is required.	• For control of liquids with high specific resistance such as distilled water • For control of liquids with low specific resistance such as salt water, sewage water, acid chemicals, alkali chemicals	• When using DC power • When using battery power, etc.
Supply voltage/frequency	100 - 240 VAC 50/60 Hz	100 - 240 VAC 50/60 Hz 24 VAC 50/60 Hz	24 VDC
Operating voltage range	85% to 110% of rated voltage	85% to 110% of rated voltage	85% to 110% of rated voltage
Operating frequency range	±5 Hz of the rated frequency	±5 Hz of the rated frequency	±5 Hz of the rated frequency
Power consumption	Approx. 3.2 VA max.	Approx. 3.2 VA max.	Approx. 1 W max.
Contact ratings	5 A at 250 VAC (Resistive load (cosφ = 1)) 1 A at 250 VAC (Inductive load (cosφ = 0.4)) Minimum applicable load 5 VDC, 1 mA (reference value)	5 A at 250 VAC (Resistive load (cosφ = 1)) 1 A at 250 VAC (Inductive load (cosφ = 0.4)) Minimum applicable load 5 VDC, 1 mA (reference value)	Transistor output Open collector (NPN) 30 VDC, 100 mA, leak current 100 μA or less Relay output (1a) 30 VDC 5 A, 240 VAC 5 A (resistive load) Minimum applicable load 5 VDC, 10 mA (reference value)
Ambient temperature	-10 to +70°C	-10 to +70°C	-10 to +55°C
Ambient humidity	25 to 90% RH	25 to 90% RH	25 to 85% RH
Ambient storage temperature	-10 to +70°C	-10 to +70°C	-10 to +55°C
Ambient storage humidity	25 to 90% RH	25 to 90% RH	25 to 85% RH
Weight	Approx. 100 g	Approx. 100 g	Approx. 100 g
Accessories	PFC-N8
*Wiring distance 1**	4 km or less	Ultra low-sensitivity, low-sensitivity, general-sensitivity: 4 km High-sensitivity: 50 m Ultra high-sensitivity: 30 m	100 m or less

*1. Reference values. The wiring distance indicates the values when completely-insulated, 3-core 0.75 mm², 600-V VCT cables are used.

Characteristics

	61F-LS-CP[]-N (Normal)	61F-LS-CP[]-S/-A (High functionality)	61F-LS-CP11-B (DC power supply)
Operation resistance	4 kΩ or more	*2	Variable (0 to 100 kΩ)
Operation resistance error	---	---	Scale 0: 0 to 10 kΩ *3 Scale 100: 100 ± 10 kΩ
Release resistance	15 kΩ or less	*2	200% max. of the operation resistance
Interelectrode voltage	5 VAC	5 VAC	5 VAC
Response time	Operate: 80 ms max. Release: 160 ms max.	*2	Operate: 1.5 s max. Release: 3.0 s max.
Startup lock time	3 s after turning on the power supply (The LED blinks during the startup lock time)
*Insulation resistance 4**	100 MΩ min. (at 500 VDC)
*Dielectric strength 4**	2000 VAC, 50/60 Hz for 1 min.
Life expectancy	Electrical: 100,000 operations min. Mechanical: 5,000,000 operations min.	Electrical: 100,000 operations min. Mechanical: 5,000,000 operations min.	Relay specification only Electrical: 70,000 operations min. Mechanical: 20,000,000 operations min.
Switching between supply and drainage	---	---	Terminals 7 and 8 open: Automatic drainage operation Terminals 7 and 8 shorted: Automatic supply operation
Approved standards	UL61010-1, CAN/CSA C22.2 No.61010-1 CE, RCM EN61010-1, EN61326-1 Industrial electromagnetic environment

*2. Refer to Dip Switch Settings.
*3. The Detector may not operate around the setting value of “0.” Adjust the sensitivity depending on the actual application.
*4. The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals. Refer to Safety Precautions on Catalog.

Dip Switch Settings (61F-LS-CP[]-S/-A only)

Symbol	Item	Specification		Notes	Factory default settings
(A)	Response speed	5S
(A)	Response speed	INSTANT (Instantaneous)			✓
(B)	Operation sensitivity	Operation resistance	Release resistance
		0.5 kΩ or more	2.5 kΩ or less	Ultra low-sensitivity
		1.3 kΩ or more	4 kΩ or less	Low-sensitivity
		4 kΩ or more	15 kΩ or less	General-purpose	✓
		70 kΩ or more	300 kΩ or less	High-sensitivity
		200 kΩ or more	500 kΩ or less	Ultra high-sensitivity

*1. N/A indicates that the switch operates whether it is set ON or OFF.
*2. “0.5, 1.3, 4, 70, 200” indicate the values of operation resistance.

last update: April 1, 2022

Product Category

Switches
- Level Switches
  - Floatless Level Controllers
    - K8AK-LS
    - 61F-G[]N
    - 61F-G[]
    - 61F-LS
    - 61F-G[]P
    - 61F-UHS / HSL
    - 61F-AO
    - 61F-AN

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