Omega Engineering LVCN-302 - Manual (Page 2)

LVCN-302 Features and Overview
Let's say your tank is 112 inches deep, and the transducer range of the sensor you’ve
chosen is 0-5 psi of water. 5 psi equals 138 inches H
2
O The pressure transducer is
located 11 inches off the bottom of the tank. With 51 inches of water in the tank you are
cavitating the pump, and at 108 inches of water you are facing probable flooding.
The goal is to maintain the liquid level between 90 and 65 inches using LVCN-302. The
following steps should be taken in order to display a 50 to 110 inch "window" of the tank,
while maintaining a liquid level range of 90 to 65 inches. High and low alarm output circuits
will be activated at 105 and 55 inches.
Transducer Range 138.0 inches H
2
O
Transducer Height 11.0
Upper Limit of Window 110.0
Lower Limit of Window 50.0
High Alarm/Fault Level 105.0
Sump ON Level 90.0
Sump OFF Level 65.0
Low Alarm/Fault Level 55.0
The Initial Set-up in Eight Easy Steps (see page 4)
describes in detail how to program LVCN-302 for your
specific application. To accomplish the above
installation, you would enter the following:
Tank Cross-Section Display with LVCN-302
123456
123456
110”
50”
High Alarm
Sump ON
Sump OFF
Low Alarm
112”
Low
er Lim
it of Display W
indow
Actual Liquid Level
Pressure
Transducer
110” to 50” the critical
range in the tank you
need to monitor.
Pump
11” OFFSET
Upper Limit of Display W
indow
110
50
95.3
®