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Product
Index ::
Industrial Components ::
Level/Monitoring Devices ::
Liquid Leakage Detection Sensors
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K7L-AT50/-AT50D
Liquid
Leakage Sensor Amplifier
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* Ordering information
* Specifications
* Configurations
* Dimensions, and etc
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can be found in our PDF brochure.
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Ultra-miniature Sensor
Amplifier Reliably Detects a Wide Variety of Liquids Ranging from Water to
Liquid Chemicals with Low Conductivity.
K7L-AT50:
Detects liquids with impedance as high as 50
MΩ using interelectrode resistance detection. Detection of IPA and pure
water is possible.
Four selectable sensing ranges ensure
detection suited to the characteristics of the liquid.
Incorporates a noise canceller circuit
connected to a 3-conductor cable, ensuring a high level of noise immunity
and reliable operation (patent pending).
The power supply block and Sensing Band are
isolated, allowing the installation of more than one device in the same
place.
K7L-AT50D:
Constantly monitors for disconnections
between the Sensor Amplifier and the Sensing Band.
Failure to detect liquid leakage due to
disconnection in the Sensing Band prevented.
Notification of disconnection detection made
using LED indicator and transistor output.
After a disconnection is detected, the
operating status is held to avoid instability due to further contact of
the disconnected part.
This model retains all the characteristics
of the K7L-AT50 (detection sensitivity, sensing ranges, and AC detection
method).
Meets UL/CSA standards.
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Features
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Sensing Band boasts high
degree of chemical resistance. The K7L can be used in a wide range
of applications from semiconductor production installations to
food-processing equipment
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Inter-electrode
Resistance Detection |
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Stable detection of
liquids with impedances of up to 50MW and common
water. Four sensing ranges are available ensuring detection
suited to the application. You can set it to detect, fresh
water, pure water, distilled water, plating liquids, chemical
liquids, and IPA (isopropyl alcohol)
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Noise Canceller
Function (Pat.) |
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Incorporates
a noise canceller circuit that uses a 3-conductor cable, ensuring a
high level of noise immunity
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AC Detection
Method |
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This K7L
internally oscillates AC signals provided to the Sensing Band at
approximately 3.75Hz, protecting the Sensing Band from electric
corrosion, and ensuring safe operation
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Multiple
Installation |
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The power
supply circuit and the detection circuit are isolated and so several
Amplifiers can be installed in the same place
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Sensing Band with
Excellent Chemical Resistance |
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SUS316 and
polyethylene are used for the Sensing Band's core and sheath
respectively ensuring high resistance to both acidic and alkaline
liquids
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Application Examples |
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Liquid Leakage
Detection for Measuring Baths in CMP Devices |
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Detects liquid
leaked to drain pans, and prevents damage to devices and cleaning
irregularities for waters
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Detection of
Liquid Leakage at Pipe Joints for Chemical Liquid Tanks |
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Liquid leakage at a pipe joint can be
detected by wrapping the Sensing Band around the joint
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Detection of
Condensation and Liquid Leakage at Semiconductor Production Installations |
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Detects condensation inside cleaning devices
and liquid leaked to the surroundings
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Detection of Cleaning
Fluid Level for Plating Devices |
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Detects the level of pure water inside plating
baths. High sensitivity allows high-accuracy control that prevents
cleaning irregularities
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See Related Products:
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Liquid Leakage Position Sensor
K7L-UP-FLK
Pinpoint liquid leakage detection at
up to 600 m. Easy setup and installation. |
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Liquid Leakage Sensor
Amplifier for Long-distance Wiring
K7L-U(D)
Ultra-miniature Liquid Leakage Sensor
Amplifier enables longest liquid leakage monitoring distance in
industry. |
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Liquid Leakage Point
Sensor
F03-16PS
A Liquid Leakage Point Sensor has been
added to the K7L-series. |
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