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61F-G[]

Floatless Level Switch (Basic Type)

61F-G[]

Basic Building-block Controllers That Mount Directly to Panels for Easier Maintenance

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:Note:

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

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

Note: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.

Note: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.

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

Note: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

Note: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.