
Liquid Leakage Sensor Amplifiers
K7L-AT50 / -AT50D
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 M? 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.