L&J TECHNOLOGIES DELAVAN MICROWAVE 320 Series

Questions and Answers

E
emorrisAug 20, 2025
What to do if my L&J TECHNOLOGIES DELAVAN MICROWAVE 320 has power but isn't receiving a signal (RED LED OFF)?
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  Kathy LloydAug 21, 2025
  If your L&J TECHNOLOGIES Switch has power but isn't receiving a signal (indicated by the RED LED being OFF), the receiver might be malfunctioning, requiring factory consultation. Another possibility is incorrect transmitter placement relative to the vessel side, causing out-of-phase reflections. Try moving the transmitter slightly (about +1/2 inch) and connect a voltmeter to the analog output and ground. Adjust the transmitter's position to achieve the maximum voltmeter reading, aiming for 0-10 VDC.
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Cynthia CortezSep 1, 2025
What to do if the external device wired to the relay terminal of my L&J TECHNOLOGIES DELAVAN MICROWAVE 320 Switch isn't working?
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  Nicholas WaltersSep 1, 2025
  If an external device connected to the relay terminal of your L&J TECHNOLOGIES Switch isn't functioning, but the status LEDs indicate operation, the problem may lie outside the Microwave 320 unit. Check the microwave relay contacts and the external device itself for defects. Ensure power is correctly wired to the relay contacts.
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hernandezscottNov 10, 2025
Why does the relay on my L&J TECHNOLOGIES Switch remain unchanged when the beam is broken?
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  Eric KingNov 10, 2025
  If the relay on your L&J TECHNOLOGIES Switch isn't changing when the beam is interrupted, it could be due to a few reasons: * Reflections: The beam might be bouncing off other surfaces, creating a path around the intended object. To test this, place an object directly in front of the transmitting sensor. If the relay changes, reflections are likely the problem. * Microwave Transparency: The microwave signal might be passing through objects. Perform the same check as above and also readjust the gain potentiometer. * Electrical Interference: Signals might be crossing between cables. Inspect the cables, ensuring the receiving sensor cables are separate from power, transmitting, or control wires. Repair any poor cable splices that lack shielding. Consider running transmitting and receiv...

L&J TECHNOLOGIES DELAVAN MICROWAVE 320 Series Specifications

General

Brand	L&J TECHNOLOGIES
Model	DELAVAN MICROWAVE 320 Series
Category	Switch
Language	English

L&J TECHNOLOGIES DELAVAN MICROWAVE 320 Series - User Manual

Table of Contents

Questions and Answers

L&J TECHNOLOGIES DELAVAN MICROWAVE 320 Series Specifications