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Multi-Point Ultrasonic Level Switch
WARNING:
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INC.
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Advertisement
Related Manuals for Omega Engineering LVCN700 Series
Summary of Contents for Omega Engineering LVCN700 Series
- Page 1 (203) Tel: unautho- Stamford, Certified 9001 including USA: charge. Upon request. Service Customer ensures This OMEGAnet grace month workmanship LVCN700 Series INC. ENGINEERING, part, whole form, machine-readable medium electronic reduced document This reserved. rights INC. ENGINEERING, INC. ENGINEERING, OMEGA engineering.
-
Page 2: Specifications
EN 61326 EMC [DC series only (DC powered)] Handling Static-Sensitive Circuits/Devices: dling the Ultrasonic switch, the technician should follow these guidelines to reduce any possible electrostatic charge build-up on the technicians body and the electronic part. 1. Always touch a known good ground source before handling the part. - Page 3 OMEGA recommends the use of redundant backup systems and alarms in addition to the primary system. Flammable, Explosive or Hazardous Applications: The LVCN700 series should not be used within classified haz- Warning Always use the Viton gasket when installing the Ultrasonic switch, and make sure that all electrical wiring of the switch is in accordance with applicable codes.
- Page 4 PREPARATION Step Four A. Supply Voltage: The power supply voltage should never exceed the maximum rating of 250 VAC for the LVCN700 series AC switch or 28 VDC for the LVCN700-DC series switch. LVCN700 series LVCN700-DC series shown NEUTRAL INPUT POWER B.
- Page 5 OFF the tank or installed ON the tank. Generally, target calibration is done OFF the tank because it is easier to move the switch rather than raise or lower the liquid level to the desired relay set point distances. Locate a flat reflective calibration target such as a wall.
- Page 6 5. The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory. 6. Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target.
- Page 7 5. The Power LED will flash from AMBER to GREEN when the HIGH set point has been accepted into memory. 6. Position the switch at the desired LOW set point distance defined as the greater of the two air gap spaces between the transducer and the target.
-
Page 8: Installation
14. The Power LED will flash from AMBER to GREEN when the set point has been accepted into memory. 15. Press the SELECT switch repeatedly until BOTH LEDs for Relay 1 and Relay 2 are ON (after Relay 3). 16. Press the HIGH button for the first key-stroke and Relay LED will blink once. -
Page 9: Troubleshooting
To prevent damaging the relays, the use of an appropriate motor starter or secondary relay is ALWAYS recommended when actuating pumps or valves. A. Wiring a LVCN700 series (95-250 VAC) to a Pump (Automatic Fill or Empty) and (Independent High and Low) Alarms... -
Page 10: Operation
OPERATION Step Sixteen Backup Primary Duplexing Control Stop Operation Energize Relay 1 De-Energize Energize Relay 2 De-Energize Backup Alternating Primary Control Operation Stop Energize Relay 1 De-Energize Energize Relay 2 De-Energize Start Automatic Empty Stop Operation Energize Relay X De-Energize Stop Automatic Start...