Omega Vehicle Security LVCN700 Series Installation, Step Twelve Programming Duplex Pump Control

Energize

High

De-energize (All) Low

PROGRAMMING

Step Twelve

Programming Duplex Pump Control (continued):

Duplex Programming

(Backup)

	Box	Set Point
Tape	Insert	Distance

Table

11

Target

Wall

12.Press the HIGH button for the first key-stroke and the Relay LED will blink once.

13.Press the HIGH button again for the second key-stroke and the Relay LED will blink twice.

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.

17.Press the HIGH button again for the second key-stroke and Relay LED will blink twice.

18.Press SELECT to program the next relay channel or slide the

RUN/CAL switch RIGHT to exit the CAL mode.

Note: The duplexing mode can be disabled by repeating Steps #15-18

INSTALLATION

Step Thirteen

Do not install at	Do not install with-
angle relative	in 3” of
to the liquid	tank side wall

Do not install	Do not install
with objects	in applications
in the beam	with vacuum
	VACUUM

Warning

Install the appropriate installation fitting. Make sure that the fitting and switch threads are not damaged or worn. Install the switch with the included Viton mounting gasket. Hand tighten the switch within the fitting. Perform an installed leak test under normal process conditions prior to system start up.

Gasket A. Fitting Selection: Check the switch part number

to determine the required fitting mount size and

thread type. The switch is commonly installed in tank adapters, flanges, brackets or stand pipes.

and pressing the LOW button instead of the HIGH button in the HIGH/HIGH combination.

Programming Alternating Control Only:

Adapter

1. Adapter: Select a tank adapter fitting with

minimal height so as to ensure that the

installed transducer will not be substantially

elevated into the fitting. Avoid tank adapter

1.To program the switch for alternating control only without the lead-lag func- tion, follow the instructions for Programming Duplexing Pump Control (Steps 11 and 12). The difference between Duplexing and Alternation is the location of the Relay 2 set point. Set Relay 2 close to the deadband without crossing into the deadband and above the highest level of expected liquid.

Alternating

High High

Flange

on Riser

		Riser
Hei	ght

Inner Diameter

Bracket

styles with threads and/or pipe stops forward

of the installed transducer.

2. Flange: Tall flanges with narrow risers

impede the acoustic signal. Select a fitting

with the right riser height versus inner diame-

ter geometry. The switch may be elevated up

to 12” (30 cm) in a 6” (15 cm) riser, 8” (20

cm) in a 4” (10 cm) riser and 3” (7.6 cm) in a

2” (5 cm) riser.

Note: The alternation mode can be disabled by repeating Steps #15-18 and pressing the

LOW button instead of the HIGH button in the HIGH/HIGH combi- nation.

3. Bracket: A LVM-30 side mount bracket or

equivalent can be used for open tank top

installations against the side wall.

Alternating Programming

(Backup)

	Box	Set Point
Tape	Insert	Distance

Table

2

Target

Wall

Stand Pipe

Ventilation	Dead Band
Hole	Highest
	Liquid Level
	Range
2"/3" Minimum	Operational
Diameter
	Lowest
	Liquid Level

4.Stand Pipe: A stand pipe may be used to dampen turbulence or separate surface foam. Select a 2” or larger pipe for model LVCN704/709. Select a 3” or larger pipe for model LVCN716/726. The pipe length should run the measurement span. Cut a 45° notch at the bottom of the pipe and drill a 1/4” pressure equalization hole high in the dead band.