Other Helpful Features of LVCN-302
Software Version Numbers
The version number of your LVCN-302 unit is
shown in the Actual Liquid Level display window
when you power up the unit. If your unit has
version 2.8, you will see in the window
LV 2.8LV 2.8
LV 2.8LV 2.8
LV 2.8
Programmed data cannot be lost
All the data and logic are written to a permanent
EEPROM, which will retain your data in the
event the power supply is disconnected. There
is no battery on the board to maintain the
data in the EEPROM.
Interrupted 4-20 mA Signal from Sensor
Whenever the 4-20 mA signal from the sensor device
is lost because of an open wire or device malfunction,
an
ERR3ERR3
ERR3ERR3
ERR3 message is displayed in the Actual Liquid
Level window. Additionally, the entire bar display will
flash red and green.
When the input sensor is sending a 4.0 mA signal, the
Actual Liquid Level display will show a \/ character in
the first digit of the display.
Over &/or Under 4-20 mA signal received
Process Signal
Input is 4.0 mA, but
not an open wire.
See above for open wire
00.000.0
00.000.0
00.0
Actual Liquid Level
00.000.0
00.000.0
00.0
Actual Liquid Level
Process Signal
Input is 20.0 mA
