FlowLine Commander LI90 Series Quick Start Manual page 20

CONFIGURE OUTGOING RELAYS
Relays #1 and #2 are controlled directly by Transmitter Inputs #1 and #2 respectively. Relays #3 and #4 are
interconnected to both Transmitter Inputs #1 and #2 and will activate (energize) when the difference between
the two levels reaches a specific differential. The relays will de-activate (de-energize) when the differential
becomes less than the OFF value. As a result, Relays #3 and #4 will have a Differential ON and Differential
OFF setting instead of the Relay ON and Relay OFF settings.
Differential greater that 35", Relay #3 will
EXAMPLE: Relay #3 will energize when the difference between Level #1 and Level #2 is greater than 35".
Relay #3 will de-energize when the difference between Level #1 and Level #2 is less than 10". Level #1 is the
upstream level used for main differential control while Level #2 is the downstream level.
1. Press ENTER key for 5 seconds to access the Config Inputs and Config Outputs screen.
2. Press the Config Outputs Soft Key to begin. The first screen to appear is for Relay #1.
a. Use the Next Soft Key to advance to the next relay.
b. Use the Back Soft Key to return to the previous screen.
3. If the correct Relay is displayed, press the Config Relay #_ Soft Key to advance to Relay #_ ON /
Differential #_ ON.
4. Relay #_ ON / Differential #_ ON is the set point where the relay will
energize. For Alarm functions, this is the liquid level where the alarm
will activate. For Automatic Fill or Empty functions, this is the level
where the process begins.
a. If a tank's sensor is reading between 0 to 500 gallons, then the relay set points must be
measured in gallons.
5. To change the Relay #_ ON / Differential #_ ON value, first press the ENTER key. The value will now
be highlighted and you can enter the
number using the F-Keys as you would a 10-digit key pad, with the down
arrow to enter the decimal point. Then, press ENTER again to complete
the entry and store the value into memory.
6. Press the Next Soft Key to proceed to Relay #_ OFF / Differential #_ OFF.
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energize
Differential less that 10", Relay #3 will
de-energize
QS301036 Rev A1