Omron 61F-GP-ND, 61F-GP-NL 2KM, 61F-GP-NR, 61F-GP-N-TDL, 61F-GP-NT User Manual

Floatless Level Switch (Compact, Plug-in Type)

Refer to Safety Precautions for Floatless Level
Controllers.

Position of LED indicator

21

61F-GP-@@

Example: 61F-GP-N [220 VAC]

Desired supply voltage

61F-GP-N@

Space-saving Design Ideal for Control Panel
Downsizing. Easy Maintenance.

• Compact: 49.4 × 38 × 84 mm (H×W×D).

• Easy identification of operating status with LED operation indicator.

• Independent DPDT contacts on 11-Pin Models.

• CE marking and UL/CSA compliance.

■ Model Number Legend

1. No. of Pins 2. Type

N: 11 pins
N8: 8 pins

Blank: General-purpose
L 2KM: Long-distance (for 2 km)
L 4KM: Long-distance (for 4 km)
H: High-sensitivity
D: Low-sensitivity
R: Two-wire
T: High-temperature

CSM_61F-GP-N@_DS_E_7_2

■ Ordering Information

Type General-purpose Long-distance (for 2 km) Long-distance (for 4 km)

Model Model Model

11-pin 61F-GP-N 61F-GP-NL 2KM 61F-GP-NL 4KM

Type High-sensitivity Low-sensitivity Two-wire

Model Model Model

11-pin 61F-GP-NH 61F-GP-ND 61F-GP-NR

Type Tropical environments High-temperature

Model Model

8-pin 61F-GP-N-TDL 61F-GP-NT

Type General-purpose Long-distance (for 2 km) Long-distance (for 4 km)

Model Model Model

8-pin 61F-GP-N8 61F-GP-N8L 2KM 61F-GP-N8L 4KM

Type High-sensitivity Low-sensitivity Two-wire

Model Model Model

8-pin 61F-GP-N8H 61F-GP-N8D 61F-GP-N8R

61F-GP-N8HY

Note: When ordering, specify the desired operating voltage at the end of the model number.

1

■ Compact Plug-in Models (11-pin Type)

Specifications

61F-GP-N@

Item General-purpose

Controlling materials
and operating condi­tions

Supply voltage 24, 100, 110, 120, 200, 220, 230 or 240 VAC; 50/60 Hz

Operating voltage
range

Interelectrode voltage 8 VAC

Interelectrode current Approx. 1 mA AC max. Approx. 0.12 mA

Power consumption Approx. 3.5 VA max.

Interelectrode operate
resistance

Interelectrode release
resistance

Response time Operate:80 ms max.

Cable length
(see note 1)

Control output 1 A, 250 VAC (Inductive load: cosφ = 0.4)

Ambient temperature Operating:–10 to 55°C (–10 to 70°C for high-temperature controller)

Ambient humidity Operating:45% to 85% RH

Insulation resistance
(see note 2)

Dielectric strength
(see note 2)

Life expectancy Electrical: 100,000 operations min.

Weight Approx. 155 g

Accessories Hold-down clip PFC-N8

Approved standards UL508, CSA C22.2 No.14, EN61010-1, EN61326-1 Industrial electromagnetic environment

Controller

61F-GP-N

For control of ordi­nary purified water
or sewage water

85% to 110% of rated voltage

0 to approx. 4 kΩ 0 to approx. 4 kΩ 0 to approx. 1.3 kΩ

Approx. 15 k to ∞ΩApprox. 15 k to ∞Ω4 k to ∞Ω (for 2

Release:160 ms max.

1 km max. 600 m max. 2 km max.

3 A, 250 VAC (Resistive load)

100 MΩ min. (at 500 VDC)

2000 VAC, 50/60 Hz for 1 min.

Mechanical: 5,000,000 operations min.

High-

temperature

Controller

61F-GP-NT

For control of ordi­nary purified water
or sewage where
operating ambient
temperature is
high.

Long-distance

Controllers

61F-GP-NL 2KM

(for 2 km)

61F-GP-NL 4KM

(for 4 km)

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 2 km)
0 to approx. 0.5 kΩ
(for 4 km)

km)

2.5 k to ∞Ω (for 4
km)

4 km max.

High-sensitivity

Controller

61F-GP-NH

(see note 4)

For control of liq­uids with high spe­cific resistance
such as distilled
water

AC max.

Approx. 10 kΩ to
approx. 40 kΩ
(see note 3)

Approx. 100 k to ∞ΩApprox. 4 k to ∞Ω Approx. 15 k to

50 m max. 1 km max. 800 m max.

Low-sensitivity

Controller

61F-GP-ND

For control of liq­uids with low spe­cific resistance
such as salt water,
sewage water,
acid chemicals, al­kali chemicals

Approx. 1 mA AC max.

0 to approx.

kΩ

1.3

Two-wire

Controller

61F-GP-NR

For control of ordi­nary purified water
or sewage water
used in combina­tion with Two-wire
Electrode Holder
(incorporating a
resistor of 6.8 kΩ)

0 to
app

rox. 2 kΩ

∞Ω

Note: 1. 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. For details, refer to Safety Precautions for Floatless Level Controllers.

2. 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. For details, refer to Safety Precautions for
Floatless Level Controllers.

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

4. 61F-GP-NH High-sensitivity Controller uses 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.
If the advanced operation does not satisfy applications, consider using 61F-N8HY controller which uses sequential operation.

2

Internal Circuit Diagrams

61F-GP-N/-NT/-NL/-ND 61F-GP-NR61F-GP-NH

3 9 14 1011

U

24 V

8 V

Control circuit

S0S1E

3

5

E

1Ta1Tc1Tb1

867

U

Ta2Tc2Tb

2

3 9 14 1011

U

24 V

8 V

Control circuit

S0S1E

3

5

E

1Ta1Tc1Tb1

867

U

Ta2Tc2Tb

2

3

9

1

4

1011

U

24 V

8 V

Control circuit

S0S1E

3

5

E

1Ta1Tc1Tb1

U

Power supply Power supply Power supply

(See note.) (See note.)

Note: When applying a self-holding circuit, short between terminals 5 and 6 and use terminal 7 as E2.

61F-GP-N@

3

■ Connections

Compact, Plug-in Type

61F-GP-N

Dimensions:

page 14

Automatic Water Supply and
Drainage Control

Water supply
source

MCCB

RSMT

Commercial Voltage

61F-GP-N

PS-3S

Stop

3

9

E2

E3

E1

P

Start

8 V

Power
supply

0 V

U

U

U

24 V

Control

circuit

(See note.)

4

8 765

10 11 1 2

Contac­tor

Water

tank

Motor
protection
relay

Note: Be sure to ground the common Electrode E3 (the

longest Electrode).

Connection Sockets
PF113A (Front-connecting)
PL11 (Rear-connecting)

Connect terminal 1 to the contactor’s coil terminal.

Note: The power supply depends on the specifications of the

model.

Connections

Reservoir

MCCB

RSMT

Commercial Voltage

61F-GP-N

PS-3S

39

E2

E3

E1

P

8 V

0 V

U

U

U

24 V

Control

circuit

(See note.)

4

8 765

10 11 1 2

Start

Stop

Contac­tor

Power
supply

Motor
protection
relay

Waste-
water

tank

Note: Be sure to ground the common Electrode E3 (the

longest Electrode).

Connection Sockets
PF113A (Front-connecting)
PL11 (Rear-connecting)

Connect terminal 1 to the contactor’s coil terminal.

Note: The power supply depends on the specifications of the

model.

Connections

E1

E2

E3

P

Water
supply

(Indicator ON)

Pump OFF

Pump ON

(Indicator OFF)

The pump stops when the water level reaches E1 (indicator ON)
and starts when the water level drops below E

2 (indicator OFF).

Principles of Operation

E

1

E

2

E

3

Water drainage

(Indicator ON)

Pump OFF

Pump ON

(Indicator OFF)

P

The pump starts when the water level reaches E1 (indicator ON)
and stops when the water level drops below E

2 (indicator OFF).

Principles of Operation

Automatic Water Supply Control Automatic Drainage Control

61F-GP-N@

4

Liquid Level Indication

Liquid Level Indication
(Connection Example)

Compact, Plug-in Type

61F-GP-N

Dimensions:

page 14

E1

E2

E3

E4

Water supply

source

Intermediate

Upper limit

Lower limit

MCCB

RSMT

Commercial Voltage

P

PS-4S

U

U

61F-GP-N

Lower limit Intermediate Upper limit

56

7

8

4

8 V

Power
supply

Power
supply

Power
supply

0 V

24 V

10

3

9

12

11

Control

circuit

U

U

U

61F-GP-N

5

6

7

8

4

8 V

0 V

24 V

10

3

9

12

11

Control

circuit

U

U

U

61F-GP-N

5

6

7

8

4

8 V

0 V

24 V

10

3

9

12

11

Control

circuit

U

(See note.)

Water

tank

Note: The power supply phases (terminals 3 to 9) can be matched to use the same ground for the

common Electrode (the longest Electrode, terminal 4).

Connections

• Terminals 6 and 7, and terminals 10 and 11 on the lower -limit 61F-GP-N are shorted when the water level reaches E3 (indicator ON).

• Terminals 6 and 7, and terminals 10 and 11 on the intermediate 61F-GP-N are shorted when the water level reaches E

2 (indicator ON).

• Terminals 6 and 7, and terminals 10 and 11 on the upper-limit 61F-GP-N are shorted when the water level reaches E

1 (indicator ON).

Principles of Operation

61F-GP-N@

5