OMRON K7L-U[] / UD[][]Sensors/ Contact Sensors / Liquid Leakage Sensors/Liquid Leakage Sensors

OMRON K7L-U[] / UD[][] Sensors

K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Catalog
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Specifications
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Dimensions
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Lineup
Purchase the OMRON K7L-U[] / UD[][] Liquid Leakage Sensors

OMRON K7L-U[] / UD[][] Dimensions

/Images/l_1819-25-118961-198x198.jpg

last update: September 10, 2018

A total distance of 400 m is achieved for cable and Sensing Band to minimize leakage damage.

Greatly expands the detection area.

A total distance of 400 m for the cable and Sensing Band extends the wiring distance by approximately 7 times compared with our previous models.

Detects broken wires.

Detects broken wires all the way from the main unit to the tip of the Sensing Band. This enhances reliability in long-distance wiring applications.

Helps to downsize gang-mounted panels.

The extremely compact size, with a width of only 16 mm, helps to save panel size when mounting several Units together.

Features a Noise Canceller (Patented)

A noise canceling circuit employing a three-conductor cable enables stable liquid leakage detection with excellent noise resistance.

last update: September 10, 2018

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OMRON K7L-U[] / UD[][] catalog
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Catalog

Catalog

Manual

CAD

English
Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name Catalog Number
[size] Last Update

K7L Series Data Sheet N211-E1-03
[7036KB] Nov 01, 201820181101 K7L Series Data Sheet

OMRON K7L-U[] / UD[][] specification
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Specifications
last update: April 3, 2017
Characteristics

Ambient temperature Operating: -10 to 55°C
Ambient humidity Operating: 45% to 85%
Insulation resistance 10 MΩ at 100 VDC between case and current-carrying parts
Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between case and current-carrying parts
Power consumption 1 W max.
Response time Operate: 800 ms max.
Release: 800 ms max.
Startup time after power ON: 2 s max.
Weight Approx. 14 g

Ratings

Rated power supply
voltage 12 to 24 VDC (Allowable voltage fluctuation range: 10 to 30 VDC)
Operate resistance 0 to 1 MΩ variable
Note:
The adjuster (ADJUST) on the top of the Sensor Amplifier sets the resistance for detection
within the setting range. It is factory-set to the upper limit. (Normally, the K7L can be used with
the adjuster at this setting.)
Disconnection
detection function
* Detection signal: 10 VDC max., 200 ms
Detection time: 10 s max.
Recovery: Operation is recovered by resetting the power supply.
Release resistance 105% min. of operate resistance
Output
configuration Open-collector transistor output with 100 mA at 30 VDC max. for both liquid leakage detection
and disconnection detection.
Note:
If the rightmost pin of the DIP switch on the side of the Sensor Amplifier is set to the down
position, the output turns ON when liquid is detected; if it is set to the up position, the output
turns OFF when liquid is detected.
Vibration resistance 10 to 150 Hz, 0.1-mm single amplitude with 15-m/s² acceleration for 8 minutes 10 times each
in X, Y, and Z directions
Shock resistance 150 m/s² 3 times each in six directions on 3 axes
Wiring distance Wiring cable, Sensing Band: Total: 400 m max.
Note:
These values are possible on the condition that a completely insulated 3-conductor VCT cable
with a thickness of 0.75 mm² and a dielectric strength of 600 V is used together with the Liquid
Sensing Band specified by OMRON. (A 0.2-mm² cable can also be used.)
Accessories Product Name Terminal Block Screwdriver for ADJUST Terminator
Model F03-20 --- F03-20T
K7L-U/UB 1 1 ---
K7L-UD/UDB/UDP/UDPB 1 1 1

* For the K7L-UD[][].

last update: April 3, 2017

OMRON K7L-U[] / UD[][] dimension
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Dimensions
last update: November 1, 2018

(Unit: mm)

Liquid Leakage Sensor Amplifier

K7L-U/-UD/-UDP

Liquid Leakage Sensor Amplifier

K7L-UB/-UDB/-UDPB

Terminal Block *

F03-20

Terminator *

F03-20T

Track-mounted Sockets *

P2RF-08 (Round terminals can be used.)

Note: The applicable models of the K7L depend on the model of the Socket. If the correct Socket is not used, the K7L nameplate will be upside down.

Track-mounted Sockets *

P2RF-08-E

Note: The applicable models of the K7L depend on the model of the Socket. If the correct Socket is not used, the K7L nameplate will be upside down.

Front-mounting Sockets

P2RF-08-PU

Note: The applicable models of the K7L depend on the model of the Socket. If the correct Socket is not used, the K7L nameplate will be upside down.

Liquid Leakage Point Sensor

F03-16PS
F03-16PS-F

Point Sensor Mounting Bracket

F03-26PS

* The Terminal Block is made of nylon 66. Mount the Terminal Block in locations not subject to liquid chemicals using M3 screws.
* Secure the Sockets with M3 screws at a torque of 0.78 to 1.18 N·m.

last update: November 1, 2018

OMRON K7L-U[] / UD[][] lineup
K7L-U[] / UD[][] Liquid Leakage Sensor Amplifiers for Long-distance Wiring/Lineup
last update: February 15, 2018
Model Number Legend

Ordering Information

Product name Model
Amplifier Liquid Leakage Sensor Amplifier *1 K7L-U
K7L-UB
Liquid Leakage Sensor Amplifier with Disconnection
Detection Function *1 K7L-UD
K7L-UDP
K7L-UDB
K7L-UDPB
Sensors Sensing Band F03-15
F03-16PE
F03-16PT
F03-16SF
F03-16SFC
Point Sensor (for K7L-U/UB) F03-16PS
F03-16PS-F
Mounting Brackets and Stickers Sensing Band Stickers F03-25
F03-26PES
F03-26PEN
F03-26PTN
Point Sensor Mounting Brackets F03-26PS
Track-mounted Socket *2 (for K7L-U/UD) Round terminals can be used. P2RF-08
Round terminals cannot be used. P2RF-08-E
Track-mounted Socket *2 (for K7L-UB/UDB) Push-In Plus Terminal P2RF-08-PU
Terminal Blocks F03-20
Terminator F03-20T

*1. Accessories are available. Check the ratings for details.
*2. The applicable models of the K7L depend on the model of the Socket. If the correct Socket is not used, the K7L
nameplate will be upside down.

last update: February 15, 2018

NO. K7L-U[] / UD[][]

TYPE:Contact Sensors / Liquid Leakage Sensors Liquid Leakage Sensors Copyright Statement

DATE:2021-06-09

Associated products:
E69-[] Rotary Encoders Accessories/Features K7L-AT50[] / AT50D[][] Liquid Leakage Sensor Amplifier/Liquid Leakage Sensor Amplifier with Disconnection Detection Function/Features

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.
*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.
Catalog Name	Catalog Number [size]	Last Update
K7L Series Data Sheet	N211-E1-03 [7036KB]	Nov 01, 201820181101	K7L Series Data Sheet

Ambient temperature	Operating: -10 to 55°C
Ambient humidity	Operating: 45% to 85%
Insulation resistance	10 MΩ at 100 VDC between case and current-carrying parts
Dielectric strength	1,000 VAC at 50/60 Hz for 1 min between case and current-carrying parts
Power consumption	1 W max.
Response time	Operate: 800 ms max. Release: 800 ms max. Startup time after power ON: 2 s max.
Weight	Approx. 14 g

Rated power supply voltage	12 to 24 VDC (Allowable voltage fluctuation range: 10 to 30 VDC)
Operate resistance	0 to 1 MΩ variable Note: The adjuster (ADJUST) on the top of the Sensor Amplifier sets the resistance for detection within the setting range. It is factory-set to the upper limit. (Normally, the K7L can be used with the adjuster at this setting.)
Disconnection detection function *	Detection signal: 10 VDC max., 200 ms Detection time: 10 s max. Recovery: Operation is recovered by resetting the power supply.
Release resistance	105% min. of operate resistance
Output configuration	Open-collector transistor output with 100 mA at 30 VDC max. for both liquid leakage detection and disconnection detection. Note: If the rightmost pin of the DIP switch on the side of the Sensor Amplifier is set to the down position, the output turns ON when liquid is detected; if it is set to the up position, the output turns OFF when liquid is detected.
Vibration resistance	10 to 150 Hz, 0.1-mm single amplitude with 15-m/s² acceleration for 8 minutes 10 times each in X, Y, and Z directions
Shock resistance	150 m/s² 3 times each in six directions on 3 axes
Wiring distance	Wiring cable, Sensing Band: Total: 400 m max. Note: These values are possible on the condition that a completely insulated 3-conductor VCT cable with a thickness of 0.75 mm² and a dielectric strength of 600 V is used together with the Liquid Sensing Band specified by OMRON. (A 0.2-mm² cable can also be used.)
Accessories	Product Name	Terminal Block	Screwdriver for ADJUST	Terminator
Model	F03-20	---	F03-20T
K7L-U/UB	1	1	---
K7L-UD/UDB/UDP/UDPB	1	1	1

Product name	Model
Amplifier	Liquid Leakage Sensor Amplifier *1	K7L-U
K7L-UB
Liquid Leakage Sensor Amplifier with Disconnection Detection Function *1	K7L-UD
K7L-UDP
K7L-UDB
K7L-UDPB
Sensors	Sensing Band	F03-15
F03-16PE
F03-16PT
F03-16SF F03-16SFC
Point Sensor (for K7L-U/UB)	F03-16PS
F03-16PS-F
Mounting Brackets and Stickers	Sensing Band Stickers	F03-25
F03-26PES
F03-26PEN
F03-26PTN
Point Sensor Mounting Brackets	F03-26PS
Track-mounted Socket *2 (for K7L-U/UD)	Round terminals can be used.	P2RF-08
Round terminals cannot be used.	P2RF-08-E
Track-mounted Socket *2 (for K7L-UB/UDB)	Push-In Plus Terminal	P2RF-08-PU
Terminal Blocks	F03-20
Terminator	F03-20T

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