Omega Engineering LVCN-302 - Manual (Page 3)

Security Levels / Selecting and Accessing Data
Operator access to data modifications has three modes of security: View Only, Set Point
Changes Allowed and Programming. Each mode is selected from the back of the unit with a DIP
switch setting.
ON
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1 2 3 4
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ON
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ON
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Programming Mode
This mode, #1 ON, allows you to
change all eight programmable
settings. It is used for initial set-up
and installation.
Set Point Changes Allowed
This mode, #2 ON, allows you to
change all four set points: the High &
Low Alarms, Make-up ON & Make-up
OFF.
View Only Mode
This mode, ALL OFF, prevents any
changes from being made. However,
all the information, except the
transducer range and transducer
offset, is available
by pressing SELECT.
Output Terminals
Output & Input Terminal Connections
(All terminal connections are plug in Phoenix type)
Power Supply
3. 120 VAC - Com.
2. Ground
1. 120 VAC - Hot
Output
Terminals Sensor Input
4. 4-20 mA (-)
3. 4-20 mA (+)
2. Ground
1. + 24 VDC Output
12. High Level N.C.
11. High Level Com
10. High Level N.O.
9. Sump ON N.C.
8. Sump ON Com
7. Sump ON N.O.
6. Low Level N.C.
5. Low Level Com
4. Low Level N.O.
3. Sump ON N.C.
2. Sump ON Com
1. Sump ON N.O.
120 VAC
Power Supply
Power Supply
3. 24 VDC - Neg (-)
2. Ground
1. 24 VDC - Pos (+)
(Unregulated)
24 Volt DC
Power Supply
NOTE: Terminal #1
provides power for
loop powered sensors.
10.0 amp
10.0 amp
10.0 amp
10.0 amp
#1-#3 Sump range
operates at same level
as #7-#9. Condiser it a
spare Form C sump
relay.