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Step Nine

Step Eight

PROGRAMMING

C. Programming UNITS:

To change UNITS from INCHES to

CM or PERCENT.  

1. Press the SELECT/FAST button and hold it for 5 seconds until

PROG appears.

2. When UNITS appears, press the SELECT/FAST button. The display

will rotate between INCHES, CM, PERCENT and DISPLAY.  

3. Press the SELECT/FAST button when the UNITS you want

(INCHES, CM or PERCENT) appear.  The display will then dis-

play SAVED.  

You have successfully changed the UNITS function.

Note:  Percent units can only be selected after the trans-

mitters Height (4 mA) and Fill H (20 mA) set points have

been programmed. Therefore initial programming should

always be done in INCH or CM UNITS. 

D. Display Mode:

The transmitter is factory set such that the

display reads the distance from the bottom of the transmitter to

the liquid surface.  This is also referred to as the Air distance (Air

Mode).  As the level of liquid increases, the display will decrease

and vice versa.  Conversely, the transmitter may be set to read the

actual height of liquid in the tank (Liquid Mode).  Below, a tank

height of 100” will display 40.0, which represents 40.0” of air in

the AIR Mode. In the Liquid Mode, the display will change to

60.0, which represents 60.0” of liquid. 

AIR MODE

LIQUID MODE

PROGRAMMING

SELECT

FAST

SELECT

FAST

HEIGHT

(MaxR)

FILL H

(MinR)

E. Change Display Mode:

To change the display to indicate

the height of liquid, follow the instructions below:

1. Press the SELECT/FAST button and hold it for 5 seconds until

PROG appears.

2. When UNITS appears, press the SELECT/FAST button. The dis-

play will rotate between INCHES, CM, PERCENT and DIS-

PLAY.

3. When DISPLAY appears, press the SELECT/FAST button. The

display will rotate between AIR or LIQUID. 

4. When LIQUID appears, press the SELECT/FAST button.

You have successfully programmed the LIQUID mode.

F. Programming Off Tank:

If you know the dimensions of your

tank, you may input the 4 mA and 20 mA set points manually without

performing target calibration (requiring you to raise and lower the liq-

uid level).  To do so, review the following: 

HEIGHT:

The point in inches or centimeters from the transducer

face where the output will be 4 mA (generally the bottom of the

tank). Factory default is the same as the unit’s maximum range.

Example LVU816 = 197” maximum range which is also the same

4 mA set point under factory default.

FILL H:

The point in inches or centimeters from the bottom of the

tank to the high level where the output will be 20 mA (generally the

straight wall distance from the bottom of the tank). NOTE: The

transmitter dead band is automatically subtracted from the FILL H.

Example: LVU816 = 8” dead band. Therefore the maximum FILL

H is 197” [maximum range] - 8” [dead band] = 189”.

40.0" of Air

100.0"
Height

60.0" of Liquid

100.0"
Height

SELECT

FAST

SELECT

FAST

SELECT

FAST

Summary of Contents for LVU800 Series

Page 1: ...erial number of the product under warranty and 3 Repair instructions and or specific problems relative to the product FOR NON WARRANTY REPAIRS consult OMEGA for current repair charges Have the followi...

Page 2: ...volatile Supply voltage 12 28 VDC Loop resist 500 Ohms 24 VDC Signal output 4 20 mA two wire Signal invert 4 20 mA 20 4 mA Calibration Push button Fail safety Selectable 4 mA 20 mA 21 mA 22 mA or hold...

Page 3: ...ten the transmitter within the fitting Always check for leaks prior to system start up Wiring and Electrical A supply voltage loop power of 12 28 VDC is used to power the LVU800 series The sensor circ...

Page 4: ...Level has reached the programmed FULL set point C EMPTY Level has reached the programmed EMPTY set point D UNITS Selectable in Inches Centimeters or Percent The facto ry default is Inches E INCHES In...

Page 5: ...emo ry after depressing the SELECT FAST key DD ERROR Indicates that the new value has NOT been saved in memory after depressing the SELECT FAST or EXIT key EE RUN When displayed if the user depresses...

Page 6: ...R FILL H MinR E Change Display Mode To change the display to indicate the height of liquid follow the instructions below 1 Press the SELECT FAST button and hold it for 5 seconds until PROG appears 2 W...

Page 7: ...will rotate between HEIGHT FILL H and REV mA 3 When HEIGHT appears press the SELECT FAST button The display will show a decimal reading in the selected UNITS 4 Press the UP DOWN buttons to increase or...

Page 8: ...CT FAST button 3 The display will now rotate through 22mA 21mA 20mA 4mA and HOLD When you reach the desired setting press the SELECT FAST button to SAVE it You have successfully programmed the SAFE mo...

Page 9: ...0 cm in a 4 10 cm riser and 3 7 6 cm in a 2 5 cm riser 3 Bracket The LVM 30 bracket or equivalent can be used for open tank top installations against the side wall 4 Stand Pipe A stand pipe may be use...

Page 10: ...T FAST TROUBLESHOOTING Transmitter LVU816 LVU826 LVU832 4 mA Setting 16 4 5m 26 2 8m 32 8 10m 20 mA Setting 8 10 cm 8 20 cm 12 30 cm Factory Set Points Power Supply Power Supply 20 mA 4 mA mA 4 5 6 mA...

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