Omega Vehicle Security LVCN700 Series Introduction, Technology, Step Two, Step Three, Part Number

Models: LVCN700 Series

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INTRODUCTION

INTRODUCTION

Step Two

Step Two About this Manual: PLEASE READ THE ENTIRE MANU- AL PRIOR TO INSTALLING OR USING THIS PRODUCT. This manual includes information on the LVCN700 series Ultrasonic Level Switch. Please refer to the part number located on the switch label to verify the exact model con- figuration which you have purchased.

Flammable, Explosive or Hazardous Applications: User’s Responsibility for Safety: Omega manufactures a broad range of level sensing technologies. While each of these sen- sors is designed to operate in a wide variety of applications, it is the user’s responsibility to select a sensor model that is appropriate for the application, install it properly, perform tests of the installed sys- tem, and maintain all components. The failure to do so could result in property damage or serious injury.

TECHNOLOGY Proper Installation and Handling: Only properly trained staff should install and/or repair this product. Install the switch with the included Viton gasket and never overtighten the switch within the fitting. Always check for leaks prior to system start-up.

Step Three Wiring and Electrical: A supply voltage of 95-250 VAC is used to power the Ultrasonic switch, and a supply voltage of 12-28 VDC is used to power the optional DC version of the LVCN700 series Ultrasonic switch. Electrical wiring of the switch should be performed in accordance with all applicable national, state, and local codes.

Material Compatibility: The LVCN700 series enclosure is made of a flame retardant Polycarbonate (PC/ABS FR). The trans- ducer is made of Polyvinylidene Fluoride (PVDF). Make sure that the model which you have selected is chemically compatible with the application media.

Enclosure: While the LVCN700 series housing is liquid-resis- tant, the unit is not designed to be operational when immersed. It should be mounted in such a way that the enclosure and transduc- er do not come into contact with the application media under nor- mal operational conditions.

Make a Fail-Safe System: Design a fail-safe system that accommodates the possibility of switch and/or power failure. 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.

TECHNOLOGY

Step Three

A. Application: The general purpose ultrasonic level switch pro- vides non-contact level detection up to 26’ or 8m with 3 relays. Each relay can be configured on a single set point alarm, two latched set points for automatic fill or empty, two set points for out of bounds alarms or three set point (relays 1 and 2 only) alternation / duplexing

. The switch is well suited for a wide range of corrosive, waste and slurry type media, and is broadly selected for atmospheric day tank, pump lift station and waste sump applications.

B. Part Number: The part and serial numbers are located on the wrench flat. Check the part number on the product label and confirm which of the below model configurations you have purchased:

Part Number

Range

Supply

Mount

LVCN704

4’ (1.2m)

95-250 VAC

1” NPT

LVCN704G

4’ (1.2m)

95-250 VAC

1” NPT

 

 

 

 

LVCN704-DC

4’ (1.2m)

12-28 VDC

1” NPT

LVCN704G-DC

4’ (1.2m)

12-28 VDC

1” NPT

LVCN709

9.8’ (3m)

95-250 VAC

1” NPT

LVCN709G

9.8’ (3m)

95-250 VAC

1” NPT

 

 

 

 

LVCN709-DC

9.8’ (3m)

12-28 VDC

1” NPT

LVCN709G-DC

9.8’ (3m)

12-28 VDC

1” NPT

LVCN716

16.4’ (5m)

95-250 VAC

1” NPT

LVCN716G

16.4’ (5m)

95-250 VAC

1” NPT

 

 

 

 

LVCN716-DC

16.4’ (5m)

12-28 VDC

1” NPT

LVCN716G-DC

16.4’ (5m)

12-28 VDC

1” NPT

LVCN726

26.2’ (8m)

95-250 VAC

2” NPT

LVCN726G

26.2’ (8m)

95-250 VAC

2” NPT

 

 

 

 

LVCN726-DC

26.2’ (8m)

12-28 VDC

2” NPT

LVCN726G-DC

26.2’ (8m)

12-28 VDC

2” NPT

 

 

 

 

C. NEMA 4X Enclosure: The enclosure has a flip cover with two 1/2” NPT female conduit ports and an internal terminal strip for wiring. To open the enclosure, you will need a small insertion tool such as a screwdriver. Insert the tool into the hole located at the front of the enclosure and gently push on the latching mechanism to release the cover. Rotate the hinged cover up for 135° access to the faceplate and terminal strips. Before closing the enclosure, make sure that the enclosure gasket is properly seated, and that any conduit fittings, cable connectors or plugs are installed correctly and sealed.

LVCN726

 

 

Shown

 

L1 L2

 

 

RELAY

RELAY

RELAY POWER

1

2

3

 

Cal.

Run

High

 

Low

 

Select

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Omega Vehicle Security LVCN700 Series Introduction, Technology, Flammable, Explosive or Hazardous Applications, Step Two