Omega Engineering LVCN-302 specifications Initial Set-Up in Eight Easy Steps

Initial Set-Up in Eight Easy Steps

PROGRAMMING MODE

The initial set-up requires you to change the DIP switch to Programming Mode, #1 ON. After the initial set-up, select the DIP switch settings for View Mode or Set Point Changes Allowed. (More detail on Page 3.) Holding down the INCREASE or DECREASE arrow for 3 seconds increases the scrolling speed of the numbers on the display.

1

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4

ON

1.- Setting the Transducer Range Press the SELECT button on the graphic face - RANG will appear in the display. A few seconds later, the display will convert to R___. The Transducer Range of the input device needs to be entered, using the INCREASE or DECREASE arrow. The Transducer Range is determined by the manufacturer of the device. It is printed on the device, typically in either psi, inches of water or inches mercury. It is not the height of the tank you are controlling.

For example: if you want to display a 120” tank of water in inches and have a transducer that has a manufacturer’s range of 0-5 psi, you would use the following formula:

(5.0 psi water) (27.7 inches)= 138.5 inches ( Note: 1psi water = 27.7” ) 1.0 specific gravity of water

2.- Setting Offset / Transducer Height Press the SELECT button again and OFST will appear in the display. A few seconds later, the display will convert to L___. Enter the Transducer Height by pressing the INCREASE or DECREASE arrow. Transducer Height is the location of the transducer from the bottom of the tank, or if you are using a bubbler it is to the bottom of the bubbler stand pipe.

3. - Selecting the Upper Cross-SectionPress the SELECT button again - the Upper Limit small numeric window display will begin to flash and the main display will convert to P___. The Upper Limit display level needs to be entered, using the INCREASE or DECREASE arrow. This is the “window” or cross-section of the tank you want to see displayed on the vertical bar display. It is not a control or alarm level.

This is one of the unique features of LVCN-302. You can select to display any portion of the height of your tank. For example: Suppose you have a 120” tall tank that you want to control. Filters and pumps occupy the bottom 50 inches, and you don’t want the level to ever go above 105”. At the same time, you want to display the crucial operating range of your tank, including make-up levels, high/low alarms and the actual level. To select the highest resolution of this crucial range on the bar display, you would enter the Upper Limit P___ at 110” and the Lower Limit P___ at 50”. You can select to display any cross-section you require for the installation.

4.- Selecting the Lower Cross-SectionPress the SELECT button again - the Lower Limit small numeric window display will begin to flash and the main display will convert to P___. The Lower Limit display level needs to be entered, using the INCREASE or DECREASE arrow. This is the window or cross-section of the tank you want to see on the bar graph display. It is not a control or alarm level. (See the above For example.)

NOTE: The previous four steps are protected from data changes when you choose either one of the other security modes. The next four steps are accessible to changes in either the Programming Mode (at the initial set-up) or with Set Point Changes Allowed mode selected.