Floatless Level Switch (Compact Type)
61F-G@N
CSM_61F-G_N_DS_E_3_5
Improved Design for a More Lightweight
Construction and Reduced Standby Power
Consumption.
• Standby power reduced to 85% or less of previous models.
(Applicable to 61F-GN.)
• Weighs only 85% or less of previous models. (Applicable to
61F-G3N/-G4N.)
• Easy identification of operating status with LED operation
indicator.
• Increased reliability of internal relay (micro load: 5 VDC, 1 mA)
to enable PLC input.
• Electrode terminals and other wiring terminals are separated for
easy wiring.
• Select from three mounting methods: JEM, DIN rail mounting,
or screw mounting.
Note:
LED operation indicator is provided on Controllers manufactured in
August 1999 or later.
Refer to
Safety Precautions for Floatless Level
Controllers.
61F-G@N (120/240 VAC) in this catalog have been discontinued
at the end of March 2018.
Model Number Structure
■
Model Number Legend
61F-@N@
1
2
2. Type
Blank:
L 2KM:
L 4KM:
H:
D:
R:
General-purpose
Long-distance (for 2 km)
Long-distance (for 4 km)
High-sensitivity
Low-sensitivity
Two-wire
1. Controller Application
G: Automatic water supply and
drainage
G1: Automatic water supply with idling
prevention or water shortage alarm
G2: Automatic water supply and
drainage with abnormal water
increase alarm
G3: Automatic water supply and
drainage with full tank and water
shortage alarm
G4: Automatic water supply with water
level indicator for water supply tank
and water receiving tank and
prevention of idling due to water
shortage
I: Liquid level indication and alarm (no
two-wire models)
Position of
LED Indicator
Note:
LED indicator is provided on
Controllers manufactured in
August 1999 or later.
It is not mounted on the case
surface. It can be seen
through the case.
1
61F-G@N
Ordering Information
Classification by
application
Classification by
control purpose
Controller GN
◆
Models
61F-GN Base x 1 61F-GN
*
61F-11@ Units x 1
Set contents
General-
purpose
High-
Low-
Long-distance
(between
sensitivity (for sensitivity (for
Controller and high specific low specific
Electrodes)
resistance)
resistance)
(See note 2.)
61F-GNL
*
61F-G1NL
*
61F-GNH
*
61F-G1NH
*
61F-GND
*
61F-G1ND
*
Two wire
61F-GNR
*
61F-G1NR
*
G1N
w/pump idling
61F-G1N Base x 1 61F-G1N
*
Models prevention
61F-11@ Units x 2
w/alarm for
abnormally low
level
G2N
◆
w/alarm for
61F-G2N Base x 1 61F-G2N
*
Models abnormally high
61F-11@ Units x 2
level
G3N
◆
w/alarm for
61F-G3N Base x 1 61F-G3N
*
Models abnormally high
61F-11@ Units x 3
and low levels
G4N
w/level
61F-G4N Base x 1 61F-G4N
*
Models display of water
61F-11@ Units x 5
source and tank
MY3 Relay x 1
IN
Level indication
Models with alarm
Relay unit
61F-IN Base x 1
61F-IN
*
61F-11@ Units x 2
61F-11@ Units x 1 61F-11N
61F-G2NL
*
61F-G3NL
*
61F-G4NL
*
61F-INL
*
61F-11NL
61F-G2NH
*
61F-G3NH
*
61F-G4NH
*
61F-INH
*
61F-11NH
61F-G2ND
*
61F-G3ND
*
61F-G4ND
*
61F-IND
*
61F-11ND
61F-G2NR
*
61F-G3NR
*
61F-G4NR
*
61F-INR
61F-11NR
Note: 1.
◆:
Automatic water supply and drainage control, : Automatic water supply control
2.
Subclassified into 2 km and 4 km models according to the model of relay unit used. Specify 2 km or 4 km when ordering.
3.
When ordering, specify the desired operating voltage at the end of the model number.
Example: 61F-GN[110/220 VAC]
Desired supply voltage
4.
Contact your OMRON representative for products with voltages other than those listed above.
5.
If you order with a standard model number, the corresponding Relay Units are also delivered as part of a set.
If you order the 61F-GN, one 61F-11 Relay Unit is included in the set.
*
61F-G@N (120/240 VAC) in this catalog have been discontinued at the end of March 2018.
2
61F-G@N
Specifications
Standard Models
Items
Type General-purpose Controllers 61F-@N Long-distance
Controllers
61F-@NL 2KM (2 km)
61F-@NL 4KM (4 km)
High-sensitivity Controllers 61F-@NH
Controlling materials and
For control of ordinary purified water and
operating conditions
wastewater
For control of ordinary purified water and
For control of liquids with high specific
wastewater. Particularly in cases where the
resistance, such as distilled water
distance between the pumps and water tanks or
between supply and receiver tanks are far apart
or where remote control is required.
Rated voltage
Allowable voltage
fluctuation range
Inter-electrode voltage
Inter-electrode current
Power consumption
Inter-electrode operation
resistance
(recommended values)
Inter-electrode release
resistance
(recommended values)
Cable length
(See note 2.)
Output
Ambient operating
temperature
Ambient operating
humidity
Insulation resistance
(See note 3.)
Dielectric strength
(See note 3.)
Life expectancy
Weight
100/200, 110/220 or 120/240 VAC, 50/60 Hz (both supported on same model)
85% to 110% of rated voltage
8 VAC
Approx. 1 mA AC max.
GN@: 3 VA max., G1N@, G2N@, IN@: 4 VA max., G3N@: 5.5 VA max., G4N@: 8.5 VA max.
0 to approx. 4 kΩ
Approx. 15 k to
∞Ω
0 to 1.8 kΩ (for 2 km)
0 to 0.7 kΩ (for 4 km)
4 k to
∞Ω
(for 2 km)
2.5 k to
∞Ω
(for 4 km)
2 km max.
4 km max.
Approx. 10 kΩ to 40 kΩ (See note 4.)
Approx. 100 k to
∞Ω
1 km max.
3 A, 200 VAC (Resistive load)
−10
to 55°C
45% to 85%
100 MΩ min. (at 500 VDC)
2,000 VAC, 50/60 Hz for 1 min.
Electrical: 250,000 operations min.
Mechanical: 10,000,000 operations min.
50 m max.
GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g
Example: 61F-GNL
S
0
Tc
U
0 V Transformer
100 V
200 V
U
24 V
8V
61F-11N
Relay Unit
U
100 V
200 V
U
0 V Transformer
24 V
8V
61F-11N
Relay Unit
U
100 V
200 V
U
Internal Circuit Diagrams
Example: 61F-GN
S
2
Tb
S
1
Ta
Example: 61F-GNH
S
1
S
0
Tc
U
0 V Transformer
24 V
8V
61F-11N
Relay Unit
U
S
2
Tb
S
2
Ta
Tb
S
1
Tc
U
S
0
Ta
E
3
E
2
E
1
E
3
E
2
E
1
E
3
E
2
E
1
Note: 1.
The
@
in the model name represents G, G1, G2, G3, G4, or I.
2.
The length when using completely insulated, 600-V, 3-core (0.75 mm
2
) cabtire cables. Usable cable lengths will become shorter as the
cable diameter or number of cores becomes larger due to increased floating capacity. For details, refer to
Safety Precautions for Floatless
Level Controllers.
3.
The insulation resistance and dielectric strength are the values between power terminals and Electrode terminals, between power
terminals and contact terminals, and between Electrode terminals and contact terminals. For details, refer to
Safety Precautions for
Floatless Level Controllers.
4.
Application is possible with 10 kΩ or less, however, this may cause reset failures.
3
61F-G@N
Type
Items
Controlling materials
and operating
conditions
Rated voltage
Allowable Voltage
Fluctuation
For control of liquids with low specific
For control of ordinary purified water
resistance, such as salt water, wastewater, or wastewater. Used with a Two-wire
acid chemicals, or alkaline chemicals
Electrode Holder (incorporating a
resistor of 6.8 kΩ)
100/200, 110/220 or 120/240 VAC, 50/60 Hz (supported by the same model)
85% to 110% of rated voltage
Low-sensitivity Controller 61F-@ND
Two-wire Controller 61F-@NR
■
Relay Unit
The Relay Unit can be replaced without
removing the wires for maintenance
inspections. It can also be replaced with
other Relay Units.
Inter-electrode voltage
8 VAC
Inter-electrode current
Approx. 1 mA AC max.
Power consumption
GN@: 3 VA max., G1N@, G2N@, IN@: 4 VA max., G3N@: 5.5 VA max.,
G4N@: 8.5 VA max.
Approx. 0 to 1.1 kΩ
Approx. 15 k to
∞ Ω
Compatibility with
General Purpose Model
(61F-11N)
General-
purpose
Controller
Long-
distance
Controllers
High-
sensitivity
Controllers
Low-
sensitivity
Controller
Two-wire
Controller
61F-11N
---
Inter-electrode
0 to approx. 1.8 kΩ
operation resistance
(recommended values)
Inter-electrode release
Approx. 5 k to
∞ Ω
resistance
(recommended values)
Cable length
(See note 2.)
Output
Ambient operating
temperature
Ambient operating
humidity
Insulation resistance
(See note 3.)
Dielectric strength
(See note 3.)
Life expectancy
Weight
Internal Circuit
Diagrams
1 km max.
3 A, 200 VAC (Resistive load)
−10
to 55°C
45% to 85%
100 MΩ min. (at 500 VDC)
2,000 VAC, 50/60 Hz for 1 min.
Electrical: 250,000 operations min.
Mechanical: 10,000,000 operations min.
61F-11NL (for 2 km)
Provided
61F-11NL (for 4 km)
61F-11NH
800 m max.
61F-11ND
61F-11NR
Not
provided
Terminal Arrangement
E
10
8V
S
9
24 V
S
8
S
7
24 V
11
GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g;
G4N models: 870 g
Example: 61F-GND
S
2
Tb
S
1
Tc
U
0 V Transformer
100 V
200 V
U
24 V
8V
61F-11ND
Relay Unit
U
100V
200V
0V
Transformer
24V
8V
61F-11ND
Relay Unit
U
U
Example: 61F-GNR
S
0
Ta
S
2
Tb
S
1
Tc
U
Relay Unit Circuit
S
0
Ta
4
Tb1
5
Ta1
6
Tc1
1
Tc2
2
Ta2
3
Tb2
Ordering Example
E
2
E
1
E
3
E
1
E
3
Note: 1.
The
@
in the model name represents G, G1, G2, G3, G4, or I.
2.
The length when using completely insulated, 600-V, 3-core (0.75 mm
2
) cabtire cables.
Usable cable lengths will become shorter as the cable diameter or number of cores
becomes larger due to increased floating capacity. For details, refer to
Safety
Precautions for Floatless Level Controllers.
3.
The insulation resistance and dielectric strength are the values between power
terminals and Electrode terminals, between power terminals and contact terminals,
and between Electrode terminals and contact terminals. For details, refer to
Safety
Precautions for Floatless Level Controllers.
4.
Application is possible with 10 kΩ or less, however, this may cause reset failures.
If you order the components listed
above, the corresponding Relay Unit
will be supplied with the Controller.
Example: If a 61F-GN Controller is
ordered, a 61F-11N Relay
Unit will also be included.
4
61F-G@N
■
Connections
Automatic Water Supply Control
Compact Model
61F-GN
Dimensions
page 16
Automatic Water Supply Control
Connections
•
Connect contactor coil terminal to Tb.
•
Connect to power supply terminals.
S
0
-S
1
: 110 VAC
S
0
-S
2
: 220 VAC
220-VAC power supply
R S T
61F-GN
MCCB
T
a
S
0
T
c
S
1
T
b
S
2
Contactor
U
0V
24 V
61F-11N
Relay Unit
U
E
1
E
2
U
110 V
8V
Transformer
220 V
E
3
(See note 1.)
PS-3S
Motor protection
relay
Water supply
source
Water
tank
E
1
E
3
E
2
Stop
Start
M
P
Note: 1.
Be sure to ground the common Electrode E
3
(the longest Electrode).
2.
The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
The pump stops (U indicator ON)
when the water level reaches E
1
and
starts (U indicator OFF) when the
water level drops below E
2
.
Water supply
Relay Unit Layout
P
Pump OFF
U
1
E
1
(U indicator ON)
Pump ON
E
2
E
3
(U indicator OFF)
Power
supply
5
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