FlowLine EchoSwitch LU71 Owner'S Manual Download Page 7

Step Ten

PROGRAMMING

E. Programming Automatic Empty:

After having powered the

switch with the appropriate supply voltage, entered the CAL mode,

selected a relay channel and erased any previously input set points,

follow the below procedure:

1. Stretch the tape measurer out to the appropriate distance in

between the switch and target.  

2. Position the switch at the desired HIGH

set point distance defined as the lesser

of the two air gap spaces between the

transducer and the target. Make sure

that the switch is stationary and per-

pendicular to the target before con-

tinuing.

3. Press the HIGH button for the first key-

stroke and the Relay LED will blink

once. 

4. Press the LOW button for the second key-stroke and the Relay

LED will blink twice. 

5. The Power LED will flash from AMBER to GREEN when the

HIGH set point has been accepted into memory.

6. Position the switch at the desired LOW set point distance defined

as the greater of the two air gap spaces between the transducer and

the target. Make sure that the switch is stationary and perpen-

dicular to the target before continuing.

7. Press the LOW button for the first key-stroke and the Relay LED

will blink three times. 

8. Press the HIGH button for the second key-stroke and the Relay

LED will blink four times. 

9. The Power LED will flash from AMBER to GREEN when the

LOW set point has been accepted into memory.

10. Press SELECT to program the next relay channel or slide the

RUN/CAL switch RIGHT to exit the CAL mode.

Automatic Empty

Box

Insert

Table

Target

Wall

Tape

Automatic Empty 

Programming

High

Set Point

Distance

Low

Set Point

Distance

De-energize

Energize

2

6

Step Eleven

PROGRAMMING

Programming Duplexing Pump Control: 

After having pow-

ered the switch with the appropriate supply voltage, entered the CAL
mode, selected relay channel 1 and erased any previously input set
points, follow the below procedure:

1. Stretch the tape measurer out to the appropriate distance in

between the switch and target.  

2. Position the switch at the desired HIGH

set point distance defined as the lesser
of the two air gap spaces between the
transducer and the target. Make sure
that the switch is stationary and per-
pendicular to the target before con-
tinuing.

3. Press the HIGH button for the first key-

stroke and the Relay LED will blink
once. 

4. Press the LOW button for the second key-stroke and the Relay

LED will blink twice. 

5. The Power LED will flash from AMBER to GREEN when the

HIGH set point has been accepted into memory.

6. Position the switch at the desired LOW set point distance defined

as the greater of the two air gap spaces between the transducer and
the target. Make sure that the switch is stationary and perpen-
dicular to the target before continuing.

7. Press the LOW button for the first key-stroke and the Relay LED

will blink three times. 

8. Press the HIGH button for the second key-stroke and the Relay

LED will blink four times. 

9. The Power LED will flash from AMBER to GREEN when the

LOW set point has been accepted into memory.

10. Press SELECT to program relay channel 2. 

11. Position the switch at the desired HIGH HIGH set point distance

defined as the air gap space between the transducer and the target.
Make sure that the switch is stationary and perpendicular to
the target before continuing.

Duplex

Box

Insert

Table

Target

Wall

Tape

Duplex Programming

(Primary)

High

Set Point

Distance

Low

Set Point

Distance

De-energize (All) Low

Energize
(Backup)

High High

Energize

(Primary)

High

2

6

Summary of Contents for EchoSwitch LU71

Page 1: ...se of any product returned to Flowline where a There is evidence of a potentially hazardous material present with product b The product has remained unclaimed at Flowline for longer than 30 days after...

Page 2: ...safety De energizes during echo signal loss Process temp F 4 to 140 C 20 to 60 Temp comp Automatic Electronics temp F 40 to 160 C 40 to 71 Pressure 30 psi 2 bar 25 C derated 1 667 psi 113 bar per C ab...

Page 3: ...l Switch from FLOWLINE Please refer to the part number located on the switch label to verify the exact model configuration which you have purchased User s Responsibility for Safety FLOWLINE manufac tu...

Page 4: ...nergize set point both relays will energize until the level reaches the de energize set point Alternation will automati cally fill or empty the tank with two pumps switching after each cycle PREPARATI...

Page 5: ...olid you may either re pro gram the channel with new set points or leave it inactive PROGRAMMING Set Point Calibration Box Insert Table Target Wall Tape Distance Set Point Cal Run High Low Select Echo...

Page 6: ...Low Level Out of Bounds Alarm Programming High Set Point Distance Low Set Point Distance Energize Energize De energize Out of Bounds D Programming Automatic Fill After having powered the switch with...

Page 7: ...Eleven PROGRAMMING Programming Duplexing Pump Control After having pow ered the switch with the appropriate supply voltage entered the CAL mode selected relay channel 1 and erased any previously inpu...

Page 8: ...process conditions prior to system start up Gasket Flange on Riser Height Inner Diameter Riser Bracket Stand Pipe Dead Band Ventilation Hole Operational Range Highest Liquid Level Lowest Liquid Level...

Page 9: ...acoustic signal strength Read the Maximum Applied Range Step 4 E and consider rein stalling the switch in a Stand Pipe Step 11 A 4 to dampen turbulence and or separate the point of measurement from s...

Page 10: ...ackup Primary Stop Duplexing Control Operation Alternating Control Operation OPERATION Step Sixteen Relay X Energize De Energize Start Stop Automatic Empty Operation Automatic Fill Operation Out of Bo...

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