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Floatless Level Switch (Compact Type)
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CSM_61F-G_N_DS_E_3_3
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.
Model Number Structure
■ Model Number Legend
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1
2
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)
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
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
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Ordering Information
Classification by
application
Set contents
Generalpurpose
Classification by
control purpose
Controller GN
◆
Models
61F-GN Base x 1 61F-GN
61F-11@ Units x 1
Long-distance
HighLow(between
sensitivity (for sensitivity (for
Controller and high specific low specific
Electrodes)
resistance)
resistance)
(See note 2.)
Two wire
61F-GNL
61F-GNH
61F-GND
61F-GNR
61F-G1NL
61F-G1NH
61F-G1ND
61F-G1NR
G2N
◆ w/alarm for
61F-G2N Base x 1 61F-G2N
Models abnormally high 61F-11@ Units x 2
level
61F-G2NL
61F-G2NH
61F-G2ND
61F-G2NR
G3N
◆ w/alarm for
61F-G3N Base x 1 61F-G3N
Models abnormally high 61F-11@ Units x 3
and low levels
61F-G3NL
61F-G3NH
61F-G3ND
61F-G3NR
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
61F-G4NL
61F-G4NH
61F-G4ND
61F-G4NR
IN
Level indication
Models with alarm
61F-IN Base x 1
61F-IN
61F-11@ Units x 2
61F-INL
61F-INH
61F-IND
61F-INR
61F-11@ Units x 1 61F-11N
61F-11NL
61F-11NH
61F-11ND
61F-11NR
G1N
w/pump idling 61F-G1N Base x 1 61F-G1N
Models prevention
61F-11@ Units x 2
w/alarm for
abnormally low
level
Relay unit
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.
2
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Specifications
Standard Models
Items
Type General-purpose Controllers [email protected] Long-distance
Controllers
Controlling materials and For control of ordinary purified water and
operating conditions
wastewater
[email protected] 2KM (2 km)
[email protected] 4KM (4 km)
High-sensitivity Controllers [email protected]
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
100/200, 110/220 or 120/240 VAC, 50/60 Hz (both supported on same model)
Allowable voltage
fluctuation range
85% to 110% of rated voltage
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.
Inter-electrode operation
resistance
(recommended values)
0 to approx. 4 kΩ
0 to 1.8 kΩ (for 2 km)
0 to 0.7 kΩ (for 4 km)
Approx. 10 kΩ to 40 kΩ (See note 4.)
Inter-electrode release
resistance
(recommended values)
Approx. 15 k to ∞Ω
4 k to ∞Ω (for 2 km)
2.5 k to ∞Ω (for 4 km)
Approx. 100 k to ∞Ω
Cable length
(See note 2.)
1 km max.
2 km max.
4 km max.
50 m max.
Output
3 A, 200 VAC (Resistive load)
Ambient operating
temperature
−10 to 55°C
Ambient operating
humidity
45% to 85%
Insulation resistance
(See note 3.)
100 MΩ min. (at 500 VDC)
Dielectric strength
(See note 3.)
2,000 VAC, 50/60 Hz for 1 min.
Life expectancy
Electrical: 250,000 operations min.
Mechanical: 10,000,000 operations min.
Weight
GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g
Internal Circuit Diagrams Example: 61F-GN
S2
Example: 61F-GNL
S2
S0
S1
Tb
Tb
Ta
Tc
Example: 61F-GNH
200 V
8V
U
100 V
24 V
200 V
8V
0 V Transformer
61F-11N
Relay Unit
U
U
E2
E1
E3
Ta
Tc
U
0 V Transformer
61F-11N
Relay Unit
U
E3
S0
S1
Tb
U
0 V Transformer
24 V
Ta
Tc
U
100 V
S2
S0
S1
100 V
24 V
200 V
8V
61F-11N
Relay Unit
U
U
E2
E1
E3
E2
E1
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 mm2) 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
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Type
Low-sensitivity Controller [email protected]
Two-wire Controller [email protected]
Items
Controlling materials
and operating
conditions
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)
Rated voltage
100/200, 110/220 or 120/240 VAC, 50/60 Hz (supported by the same model)
Allowable Voltage
Fluctuation
85% to 110% of rated voltage
Inter-electrode current 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.
Inter-electrode
0 to approx. 1.8 kΩ
operation resistance
(recommended values)
Approx. 0 to 1.1 kΩ
Inter-electrode release Approx. 5 k to ∞ Ω
resistance
(recommended values)
Approx. 15 k to ∞ Ω
Cable length
(See note 2.)
1 km max.
800 m max.
Output
3 A, 200 VAC (Resistive load)
Ambient operating
temperature
−10 to 55°C
Ambient operating
humidity
45% to 85%
Insulation resistance
(See note 3.)
100 MΩ min. (at 500 VDC)
Dielectric strength
(See note 3.)
2,000 VAC, 50/60 Hz for 1 min.
Life expectancy
Electrical: 250,000 operations min.
Mechanical: 10,000,000 operations min.
GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g;
G4N models: 870 g
Internal Circuit
Diagrams
Example: 61F-GND
61F-11N
Longdistance
Controllers
61F-11NL (for 2 km) Provided
61F-11NL (for 4 km)
Highsensitivity
Controllers
61F-11NH
Lowsensitivity
Controller
61F-11ND
Two-wire
Controller
61F-11NR
S2
S0
S1
200 V
8V
S
S
9
8
24 V
S
7
11
24 V
Ta
U
0 V Transformer
24 V
E
S0
Tc
U
100 V
Not
provided
Relay Unit Circuit
S1
Tb
Ta
Tc
---
10
8V
Example: 61F-GNR
Tb
0V
61F-11ND
Relay Unit
U
Transformer
100V
24V
200V
8V
61F-11ND
Relay Unit
U
4
Tb1
5
Ta1
6
Tc1
1
Tc2
2
Ta2
3
Tb2
U
Ordering Example
U
E3
Generalpurpose
Controller
Terminal Arrangement
Weight
S2
The Relay Unit can be replaced without
removing the wires for maintenance
inspections. It can also be replaced with
other Relay Units.
Compatibility with
General Purpose Model
(61F-11N)
Inter-electrode voltage 8 VAC
Power consumption
■ Relay Unit
E2
E1
E3
E1
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 mm2) 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
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■ 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.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
R S T
61F-GN
MCCB
Ta
0V
S0
Tc
E1
24 V
61F-11N
Relay Unit
U
U
E2
110 V
S1
U
Tb
8V
220 V
S2
E3
Transformer
(See note 1.)
Contactor
PS-3S
Motor protection
relay
Water
tank
Water supply
source
M
E1
E3 E2
Stop
Start
P
Note: 1. Be sure to ground the common Electrode E3 (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 E1 and
starts (U indicator OFF) when the
water level drops below E2.
U
1
Water supply
P
Pump OFF
E1
Pump ON
E2
Power
supply
Relay Unit Layout
(U indicator ON)
(U indicator OFF)
E3
5
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Automatic Drainage Control
Compact Model
61F-GN
Dimensions
page 16
Automatic Drainage Control
Connections
• Connect the contactor coil terminal to Ta.
• Connect to power supply terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
R S T
61F-GN
MCCB
Ta
S0
Tc
0V
E1
24 V
61F-11N
Relay Unit
U
U
E2
110 V
S1
U
Tb
220 V
S2
8V
E3
Transformer
Contactor
(See note 1.)
Motor protection
relay
PS-3S
E1
Wastewater
tank
M
E3
E2
Start
Stop
P
Reservoir
Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
• The pump starts (U indicator ON)
when the water level reaches E1
and stops (U indicator OFF) when
the water level drops below E2.
Pump ON
E1
Pump OFF
E2
E3
(U indicator ON)
U
1
Power
supply
Relay Unit Layout
(U indicator OFF)
P
Water drainage
6
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Automatic Water Supply Control with
Pump Idling Prevention
Compact Model
61F-G1N
Dimensions
page 16
Automatic Water Supply Control with Pump Idling Prevention
Connections
220-VAC power supply
R S T
MCCB
61F-G1N
Tc2
0V
S0
B
Tb2
110 V
S1
Alarm Bell
220 V
S2
Ta1
Test Operation/
Recovering from
Power Interruptions
If the water supply source level
has not yet reached E1' when
starting the pump or after
recovering from a power
interruption, press the
pushbutton switch to start the
pump (U1 indicator ON) by
momentarily short-circuiting E1'
and E3.
U1
U2
E1
24 V
61F-11N
Relay Unit
U1
24 V
61F-11N
Relay Unit
U2
U2
E2
E3
8V
(Pushbutton switch)
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
• Insert a pushbutton switch
(NO contact) between E1' and
E3 as shown by the dotted
line.
• Do not press the pushbutton
switch if the pump stops (U1
indicator OFF) during normal
operation after an alarm is
given for a low water level
(e.g., the water level does not
reach E2').
E1'
Transformer
U1
Tb1
E2'
Contactor
(See note 1.)
PS-3S
Motor
Protection
Relay
E1
Water
tank
PS-3S
E3
Water
supply
source
M
P
E1'
Stop
Start
E2
Water
shortage
E2'
E3
Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Note
Relay Unit Layout
Water
shortage
E1'
E2'
(U1 indicator ON)
(U1 indicator OFF)
E3
B
L
Water tank
Water supply
U U
2 1
Power
supply
• The pump starts (U2 indicator
OFF) when the water level
drops below E2 and stops (U2
indicator ON) when water level
reaches E1.
• The pump is forced to stop
when the water supply source
level drops below E2' (U1
indicator OFF) to prevent the
pump from idling and gives an
alarm.
Water supply source
• Length of Electrode E1'
When installing the Controller in
locations where there is a possibility of
momentary power interrupts or blackouts,
the length of E1' should be made so that
the amount of water corresponding to
one pump cycle does not expose the
Electrodes. This will prevent the E2'
self-holding circuit from failing.
P
Pump OFF
E1
(U2 indicator ON)
Float
Water supply source
E1'
Pump ON
E2
(U2 indicator OFF)
Amount of water for
one pump cycle
E2'
E3
E3
7
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Automatic Water Supply Control with
Abnormal Water Shortage Alarm
Compact Model
61F-G1N
Dimensions
page 16
Automatic Water Supply Control with Abnormal Water Shortage Alarm
Connections
220-VAC power supply
R S T
MCCB
61F-G1N
Tc2
0V
S0
B
Tb2
Alarm Bell
Test Operation/
Recovering from
Power Interruptions
If the water level has not yet
reached E4 when starting the
pump or after recovering from
a power interruption, press
the pushbutton switch to start
the pump by short-circuiting
E3 and E4 (U1 indicator ON).
U1
S1
110 V
S2
220 V
Ta1
U2
E1
24 V
61F-11N
Relay Unit
U1
24 V
61F-11N
Relay Unit
U2
U2
E2
E3
8V
Transformer
E1'
U1
Tb1
(Pushbutton switch)
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
• Insert a pushbutton switch
(NO contact) between E3
and E4.
• If the pump stops upon
releasing the pushbutton
switch, keep pressing the
pushbutton switch.
• Connect the E4 electrode for
the water shortage alarm to
the E1’ terminal.
(E4)
E2'
Contactor
(See note 1.)
PS-4S
Motor
Protection
Relay
E3
Water supply
source
M
Stop
E1
Water
tank
E4
Start
Water
shortage
E2
P
Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
Water supply source
U U
Water supply
2 1
P
Pump OFF
E1
Pump ON
E2
Water
shortage
E4
B
L
Power
supply
• The pump stops (U2 indicator
ON) when the water level
reaches E1 and starts (U2
indicator OFF) when water level
drops below E2.
• If the water level drops below E4
for any reason, an alarm is given
(U1 indicator OFF).
(U2 indicator ON)
(U2 indicator OFF)
(U1 indicator OFF)
E3
8
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Automatic Water Supply with
Abnormal Water Increase Alarm
Compact Model
61F-G2N
Dimensions
page 16
Automatic Water Supply with Abnormal Water Increase Alarm
Connections
• Connect power supply
terminal S2 to terminal Tb1.
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
R S T
61F-G2N
MCCB
Ta2
S0
Tc2
B
110 V
S1
Alarm Bell
Ta1
S2
Tc1
E1
0V
U1
220 V
24 V
61F-11N
Relay Unit
U1
24 V
61F-11N
Relay Unit
U2
U2
E2
E3
8V
U2
E4
Transformer
Tb1
(See note 1.)
Contactor
PS-4S
Motor
Protection
Relay
Water
tank
Water supply
source
P
M
Full tank
Stop
Start
E4
E1
E2
E3
Reservoir
Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
P
Water supply
E4
Pump OFF
E1
Pump ON
E2
B
L
Upper limit
(U1 indicator ON)
U U
2 1
Power
supply
• The pump starts (U2 indicator OFF)
when the water level reaches E2 and
stops (U2 indicator ON) when the
water level rises above E1.
• If the water level reaches E4 for any
reason, an alarm is given (U1
indicator ON).
(U2 indicator ON)
(U2 indicator OFF)
E3
9
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Automatic Drainage Control with
Abnormal Water Increase Alarm
Compact Model
61F-G2N
Dimensions
page 16
Automatic Drainage Control with Abnormal Water Increase Alarm
Connections
• Connect power supply S2 to
terminal Ta1.
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
R S T
61F-G2N
MCCB
Ta2
S0
B
Tc2
U1
110 V
S1
Alarm Bell
Ta1
S2
Tc1
E1
0V
24 V
61F-11N
Relay Unit
U1
24 V
61F-11N
Relay Unit
U2
U2
E2
8V
E3
Transformer
E4
220 V
U2
Tb1
(See note 1.)
Contactor
Motor
Protection
Relay
PS-4S
Wastewater tank
E1
M
E3
P
E4
E2
Full tank
Start
Stop
Reservoir
Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
Water tank
B
L
E4
Pump ON
E1
Pump OFF
E2
U U
Upper limit
(U1 indicator ON)
2 1
Power
supply
• The pump starts (U2 indicator ON)
when the water level reaches E1 and
stops (U2 indicator OFF) when the
water level drops below E2.
• If the water level reaches E4 for any
reason, an alarm is given (U1
indicator ON).
(U2 indicator ON)
(U2 indicator OFF)
E3
P
Water drainage
10
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Automatic Water Supply Control with
Full Tank and Water Shortage Alarm
Compact Model
61F-G3N
Dimensions
page 17
Automatic Water Supply Control with Full Tank and Water Shortage Alarm
Connections
• Connect contactor coil terminal to Tb.
• Connect to power supply terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
61F-G3N
R S T
Transformer
Ta
0V
S0
MCCB
24 V
U2
Tc
To 61F-11N
Relay Unit
110 V
S1
Tb
220 V
S2
E2
8V
U2
U1
Upper limit
E3
U3
61F-11N
Relay Unit
U1
U1
61F-11N
Relay Unit
U2
61F-11N
Relay Unit
U3
LH
PL
B1
Lc
Lower limit
B2
U3
LL
PL
E1
24 V
B
E4
E5
(See note 1.)
Alarm Bell
Contactor
PS-5S
Motor
Protection
Relay
E1
Water
tank
Water supply
source
M
E3
E5
E2
E4
Full tank
Stop
Start
Water shortage
P
Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
P
LH
Water supply
B
(U1 indicator ON)
E1
Pump OFF
(U2 indicator ON)
E2
Pump ON
(U2 indicator OFF)
E3
E4
E5
U U U
3 2 1
Upper limit
Power
supply
• The pump starts (U2 indicator ON)
when the water level reaches E2 and
stops (U2 indicator OFF) when the
water level drops below E3.
• If the water level rises to E1 for any
reason, the upper-limit indicator turns
ON and an alarm is given (U1 indicator
ON). If the water level drops below E4
for any reason, the lower-limit indicator
turns ON and an alarm is given (U3
indicator OFF).
Lower
limit
(U3 indicator OFF)
LL
B
11
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Automatic Drainage Control with
Full Tank and Water Shortage Alarm
Compact Model
61F-G3N
Dimensions
page 17
Automatic Drainage Control with Full Tank and Water Shortage Alarm
Connections
• Connect contactor coil terminal to Ta.
• Connect to power supply terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
61F-G3N
R S T
Transformer
Ta
0V
S0
MCCB
U2
Tc
110 V
S1
Tb
220 V
S2
24 V
To 61F-11N
Relay Unit
8V
E2
U2
U1
Upper limit
PL
E3
U3
61F-11N
Relay Unit
U1
U1
61F-11N
Relay Unit
U2
61F-11N
Relay Unit
U3
LH
B1
LC
Lower limit
B2
U3
LL
PL
E1
24 V
E4
E5
B
Alarm Bell
Contactor
(See note 1.)
Motor
Protection
Relay
PS-5S
Full tank
Start
Stop
Water shortage
E1
E2
Wastewater
tank
M
E5
P
E4
E3
Reservoir
Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
LH
B
(U1 indicator ON)
E1
Pump ON
(U2 indicator ON)
E2
Pump OFF
(U2 indicator OFF)
E3
E4
E5
U U U
3 2 1
Upper limit
Power
supply
• The pump starts (U2 indicator ON)
when the water level reaches E2 and
stops (U2 indicator OFF) when the
water level reaches E3.
• If the water level rises to E1 for any
reason, the upper-limit indicator turns
ON and an alarm is given (U1 indicator
ON). If the water level drops below E4
for any reason, the lower-limit indicator
turns ON and an alarm is given (U3
indicator OFF).
Lower
limit
(U3 indicator OFF)
LL
B
12
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Water Source Level Indication with
Prevention of Pump Idling Due to Water
Shortage, and Automatic Water Supply
Control with Indication of Water Level in
Elevated Tank
Compact Model
61F-G4N
Dimensions
page 17
Water Source Level Indication with Prevention of Pump Idling Due to Water Shortage, and Automatic Water Supply Control with
Indication of Water Level in Elevated Tank
220-VAC power supply
R S T
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
• Insert a pushbutton switch
(NO contact) between E2
and E8 as shown by the
dotted line.
• Do not press the
pushbutton switch if the
pump stops during normal
operation after an alarm is
given for low water level
(i.e., the water level has not
reached E3).
61F-G4N
Transformer
S0
U2
S1
MCCB
0V
X
24 V
To 61F-11N
Relay Unit
MY3 Relay
110 V
S2
X
Tc
24 V
8V
220 V
E1
U5
Tc2
E2
TA
U2
E3
E8
B
BH1
BL1
Test Operation/
Recovering from
Power Interruptions
BH2
BL2
When starting the pump and
after recovering from a power
interruption, if the water
source level has not yet
reached E2 (U2 indicator
OFF), press the pushbutton
switch to start the pump by
momentarily short-circuiting
E2 and E8.
LH1
LL1
LH2
Contactor
LL2
Elevated
tank repletion
Elevated
tank water
shortage
Water supply
source upper
limit
Water supply
source lower
limit
Elevated
tank repletion
Elevated
tank water
shortage
Water supply
source upper
limit
Water supply
source lower
limit
E4
U4
BH1
U1
BL1
U3
BH2
X
BL2
61F-11N U2
Relay Unit
E6
61F-11N U1
Relay Unit
U3
LH2
E5
E7
E8
61F-11N U5
Relay Unit
U1
LL1
61F-11N U3
Relay Unit
61F-11N U4
Relay Unit
U4
LH1
(Pushbutton switch)
Connections
U5
X
LL2
(See note 1.)
PS-5S
Motor Protection Relay
E4
PS-4S
Water
supply
source
M
P
E1
E2
E8
E3
E5
Water
tank
Upper limit
ON
OFF
Lower limit
E6
E8
Full tank
Stop
Start
Water
shortage
E7
Note: 1. Be sure to ground the common Electrode E8 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Precaution
Relay Unit Layout
Power
supply
• Insert four Electrodes in the water supply source and five
Electrodes in the elevated water tank.
• The lower-limit indicator for the water supply source remains U5 U4 U3 U2 U1 X
ON while the water source level is below E3 (U2 indicator
OFF).
• When the water level rises to E2, the lower-limit indicator turns OFF (U2 indicator
ON) and the pump is ready for operation.
• When the water level reaches E1, the upper-limit indicator turns ON (U3 indicator
ON).
• The water-shortage indicator for the elevated tank remains ON while the water level
in the elevated tank is below E7. The indicator turns OFF (U1 indicator ON) when the
water level rises to E7.
• The pump stops (U5 indicator ON) when the water level reaches E5 and starts (U5
indicator OFF) when the water level drops below E6.
• If the water level reaches E4 for any reason, the tank repletion indicator for the
elevated tank turns ON (U4 indicator ON).
• Length of Electrode E2
When installing the Controller in locations
where there is a possibility of momentary
power interruptions or blackouts, the
length of E2 should be made so that the
amount of water corresponding to one
pump cycle does not expose the
Electrodes. This will prevent the E3
self-holding circuit from failing.
Float
Water supply source
E1
E2
E8
Float valve open
Amount of water for
one pump cycle
E3
13
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Liquid Level Indication and Alarm
Compact Model
61F-IN
Dimensions
page 16
Liquid Level Indication and Alarm
Connections
• Connect to power supply
terminals.
S0-S1: 110 VAC
S0-S2: 220 VAC
220-VAC power supply
R S T
MCCB
61F-IN
Tc
U2
S0
B
B
Alarm Bell
110 V
S1
L1
PL Lower limit
U2
S2
PL Upper limit
L2
PL
L3
E1
0V
U1
220 V
24 V
61F-11N
Relay Unit
U1
24 V
61F-11N
Relay Unit
U2
E2
E3
8V
Transformer
U1
Intermediate
(See note 1.)
PS-3S
Upper limit
E1
Water
tank
E3
Water supply
source
M
E2
Intermediate
Lower limit
P
Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/220 VAC.
Principles of Operation
Relay Unit Layout
Water tank
B
LH
Upper
limit
(U1 indicator ON)
E1
LM
Intermediate
LL
Lower
limit
(U1 indicator OFF)
U U
2 1
Power
supply
• When the water level drops below E2, the
lower-limit indicator turns ON and an alarm is
given (U2 indicator OFF).
• When the water level reaches E2, the alarm
turns OFF and the intermediate indicator turns
ON (U2 indicator ON).
• When the water level rises to E1, the upperlimit indicator turns ON and an alarm is given
(U1 indicator ON).
(U2 indicator ON)
B
E2
(U2 indicator OFF)
E3
14
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■ Two-wire Connection
The wiring between the 61F Controller and the Electrodes can be reduced by removing the self-hold circuit. This arrangement is called a two-wire
connection. Three Electrodes are still required. Both the 61F Controller (including the Relay Unit) and Electrode Holder must be two-wire models.
Two-wire Electrode Holders have an in-built resistor of 6.8 kΩ 1W.
Automatic Water Supply and
Drainage Control
Compact Model
61F-GNR
Dimensions
page 16
Automatic Water Supply Control
Automatic Drainage Control
Connections
Connections
220-VAC power supply
220-VAC power supply
R S T
R S T
MCCB
61F-GNR
61F-GNR
MCCB
S0
S1
S2
Ta
Tc
Tb
0V
U
110 V
E1
24V
61F-11NR
Relay Unit
U
S0
S1
U
8V
220 V
Transformer
E3
S2
(See note 1.)
Contactor
Ta
0 V 24 V
61F-11NR U
U
Relay Unit
110 V
Tc
Tb
E1
U
8V
220 V
Transformer
E3
Contactor
(See note 1.)
PS-3SR
Motor
protection
relay
Water
tank
Water
supply
source
M
R
E1
E2
E3
Motor
protection
relay
Stop
Start
E2
P
PS-3SR
R
Wastewater
tank
M
P
E1
Start
Stop
E3
Reservoir
Note: 1. Be sure to ground the common Electrode E3 (the longest
Electrode).
2. The above wiring diagram is for a rated voltage of 110/
220 VAC.
Note: 1. Be sure to ground the common Electrode E3 (the
longest Electrode).
2. The above wiring diagram is for a rated voltage of 110/
220 VAC.
• Connect contactor coil terminal to Tb.
• Connect to power supply terminals.
S0-S1: 100 VAC
S0-S2: 200 VAC
• The two-wire models require only two cables for the connection
between the 61F-GNR and the Electrode Holder, but still
requires three Electrodes.
• A Two-wire Electrode Holder must be used. (It has an inbuilt
resistance R.)
• The Relay Unit must also be for two-wire models.
• Connect contactor coil terminal to Ta. (Do not connect Tb.)
• Connect to power supply terminals.
S0-S1: 100 VAC
S0-S2: 200 VAC
• The two-wire models require only two cables for the connection
between 61F-GNR and the Electrode Holder, but still needs
three Electrodes.
• A Two-wire Electrode Holder must be used. (It has an inbuilt
resistance R.)
• The Relay Unit must also be for two-wire models.
Principles of Operation
Principles of Operation
P
Water supply
Pump ON
Pump OFF
E1
E1
Pump OFF
E2
Pump ON
E2
(U indicator ON)
(U indicator ON)
(U indicator OFF)
(U indicator OFF)
E3
P
E3
Water Drainage
The pump stops (U indicator ON) when the water level reaches
E1 and starts (U indicator OFF) when water level drops below E2.
The pump starts (U indicator ON) when the water level reaches E1
and stops (U indicator OFF) when the water level drops below E2.
15
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Dimensions
Note: All units are in millimeters unless otherwise indicated.
61F-GN, -GNL, -GNH, -GND, -GNR
25
5
14
14
32
3
60
11
5
65
54
10
3.4
Terminal cover
11
9
Nine, M3.5 sems screws
4 min.
5
10
100
70
56
40
50
4
(See note.)
35.4 90
50
39
43.5
4 min.
Note: Dimensions are with the DIN rail mounting (sliding) bracket attached.
61F-G1N, -G1NL, -G1NH, -G1ND, -G1NR
61F-G2N, -G2NL, -G2NH, -G2ND, G2NR
61F-IN, - NL, -INH, -IND
25
5
14
14
32
60
3
11
5
65
54
10
3.4
Terminal cover
11
9
Fifteen, M3.5 sems screws
4 min.
10
100
5
70
56
4
(See note.)
65
75
35.4 90
50
39
4 min.
43.5
Note: Dimensions are with the DIN rail mounting (sliding) bracket attached.
16
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61F-G3N, -G3NL, -G3NH, -G3ND, -G3NR, -G3N-NGD
25
5
14
14
32
60
3
11
5
65
54
10
3.4
Terminal cover
11
9
21, M3.5 sems screws
Min. 4
10
100
5
70
56
115
125
4
(See note.)
35.4 90
50
39
43.5
Min. 4
Note: Dimensions are with the DIN rail mounting (sliding) bracket attached.
61F-G4N, - G4NL, -G4NH, -G4ND, -G4NR, -G4N-KYD
25
5
32
60
14
14
3
5
11
65
10
3.4
Terminal cover
25, M3.5 sems screws
9
Min. 4
10
100
5
70
56
190
200
4
(See note.)
35.4 90
50
39
43.5
Min. 4
Note: Dimensions are with the DIN rail mounting (sliding) bracket attached.
■ Safety Precautions
Refer to Safety Precautions for All Level Controllers.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
17
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.11
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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