Omron, 61F-G[] Series

Easy maintenance with building-block Relay Units.
Easy identification of operating status with LED operation indicator.
Lineup includes models for tropical regions and for high temperatures. Achieve stable detection even in hightemperature environments.

last update: September 24, 2012

Standard Models

Items	General- purpose Controller 61F-[] (TDL) (see note 1 and 2)	High- temperature Controller 61F-[]T (see note 1)	Long-distance Controllers 61F-[]L 2KM (for 2 km) 61F-[]L 4KM (for 4 km) (see note 1)	High- sensitivity Controllers 61F-[]H (see note 1)	Low- sensitivity Controller 61F-[]D (see note 1)	Two-wire Controller 61F-[]R (see note 1)
Controlling materials and operating conditions	For control of ordinary purified water or sewage water	For control of ordinary purified water or sewage water in cases where the 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	For control of ordinary purified water or sewage water used in combination with Two-wire Electrode Holder (incorporating a resistor of 6.8 kΩ) It is possible to wire with less than one wiring against general 61F's wiring.
Supply voltage	100, 110, 120, 200, 220 or 240 VAC; 50/60 Hz
Operating voltage range	85% to 110% of rated voltage
InterElectrode voltage	8 VAC			24 VAC	8 VAC
InterElectrode current	Approx. 1 mA AC max.
Power consumption	61F-G[]: 3.5 VA max.; G1F-G1[], G1F-G2[], or G1F-I[]: 5.5 VA max.; G1F-G3[]: 7.5 VA max.; G1F-G4[]: 14.5 VA max.
InterElectrode operate resistance	0 to approx. 4 kΩ	0 to approx. 5 kΩ	0 to approx. 1.8 kΩ (for 2 km) 0 to approx. 0.7 kΩ (for 4 km)	Approx. 15 kΩ to 70 kΩ (see note 5)	0 to approx. 1.8 kΩ	0 to approx. 1.1 kΩ
InterElectrode release resistance	Approx. 15 k to ∞ Ω	Approx. 15 k to ∞ Ω	4 k to ∞ Ω (for 2 km) 2.5 k to ∞ Ω (for 4 km)	Approx. 300 k to ∞ Ω	Approx. 5 k to ∞ Ω	Approx. 15 k to ∞ Ω
Cable length (see note 3)	1 km max.	600 m max.	2 km max. 4 km max.	50 m max.	1 km max.	800 m max.
Control output	2 A, 220 VAC (Inductive load: cosΦ = 0.4) 5 A, 220 VAC (Resistive load)
Ambient temperature	Operating: -10 to 55°C (-10 to 70°C for 61F-[]T)
Ambient humidity	Operating: 45% to 85% RH
Insulation resistance (see note 4)	100 MΩ min. (at 500 VDC)
Dielectric strength (see note 4)	2000 VAC, 50/60 Hz for 1 min.
Life expectancy	Electrical: 500,000 operations min. Mechanical: 5,000,000 operations min.
Weight	61F-G[]: Approx. 380 g, G1F-G1[], G1F-G2[], or G1F-I[]: Approx. 750 g; G1F-G3[]: Approx. 930 g; G1F-G4[]: Approx. 1,710 g

Note:
The [] in the model name represents G, G1, G2, G3, G4, and I.

The suffix "TDL" attached to the model name represents models designed for tropical regions (storage humidity of 45% to 90%).

The length when using completely-insulated, 600-V, 3-conductor (0.75 mm²) cabtire cables. Usable cable lengths will become shorter as the cable diameter or number of conductors becomes larger.

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.

Possible to use with 15 kΩ or less, however, this may cause reset failure.

High-sensitivity Controllers use advanced operation.
When the power supply voltage is applied, if there are some liquids between the electrodes (ground and operation electrodes), the internal relay will not operate.
When the power supply voltage is applied, if there are no liquids between the electrodes (ground and operation electrodes), the internal relay will operate.

Advanced Operation

With advanced operation, the internal relay operates as soon as control power is supplied to the G1F and is reset when current flows between the poles. Wiring is the same as for models with sequential operation.

Standard Models

61F-G

61F-G1 61F-G2 61F-I

61F-G3

61F-G4

TITLE	DOCUMENT TYPE	SIZE
61F-G	Catalog	2022 KB
Device selection guide for water level control applications	Catalog	2428 KB
61F Floatless level switch (BaseType) instruction sheet	Manual	404 KB

Standard Models

Standard Models

61F-G

61F-G1 61F-G2 61F-I

61F-G3

61F-G4

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