41
Appendix
Section Seven
FACTORY SETTINGS
LVU500 series
Sensor Height
Fill-Height
LVU503 Series
118.1” (300 cm)
114.1” (290 cm)
LVU501 Series
59.1” (150 cm)
57.6” (146.2 cm)
USER SETTINGS
Fill out the chart below and keep as a record of your configuration.
Tank
Height =
Fill-H =
Units
Inches
Feet
cm
Meter
Display
Air
Liquid
Safe
22mA
21 mA
20mA
Hold Last
4mA
Rev mA
4mA @ Bottom
4mA at Top
Start-up
4mA
12mA
20mA
22mA
Relay(s)
Relay 1 (Blue)
Relay 2 (Orange)
Relay 3 (Yellow)
Relay 4 (Purple)
ON
OFF
TROUBLESHOOTING
PROBLEM
SOLUTION
Transmitter indicates a
current of 0 mA:
Check the wiring for an open circuit. An open circuit is the most common issue
with a 0 mA signal.
Transmitter jumps to a
current reading between
19 and 20 mA:
Check the installation of the transmitter. Bad installation fittings will cause
false signals near the top of the tank, which typically translates to a signal
between 19 and 20 mA. Also look for interference just below the transmitter. If
the transmitter is installed in a metal fitting, switch to a plastic fitting.
Transmitter indicates a
current over 23 mA:
Immediately check the wiring for a short circuit. The LVU500 series is current
limited to 22 mA. Anything above 23 mA indicates a short circuit.
