Omega LVH-200 Owner's manual

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INTRODUCTION StepOne

Specifications:

Accuracy: ±5mminwater

Repeatability: ±2mminwater

Extremeorientation: ±20°fromhorizontal

SpecificGravity: 0.6minimum

Contacttype: (1)SPST(reed)

Contactrating: 30VA@0.5A

Contactoutput: SelectableNOorNC

Temperaturerange: F:‐40°to221°/C:‐40°to105°

Pressure: 100psi(6.9bar)

Sensorrating: NEMA6(IP68)

Sensormaterial: Polypropylene

Wirejacketmaterial: Polymeric

Wiretype: 2‐conductor

Wirelength: 2’(61cm)

Mountingthreads: 1/2"NPT

Classification: Generalpurpose,CE

Installation:

1. Switchesshouldbeinstalledrigidlysothefloator

floats are free to move as the liquid level

changes.

2. Switches should be mounted in a tank area free

of severe turbulence or protected from such

turbulence by appropriate and adequate slosh

shields.

3. Switch stems must be mounted with the arrow

verticallyeitherupordowndependingonswitch

operation.

4. Switch stems should be horizontal for best 

results, but satisfactory operation is possible in

mostliquidswiththestematuptoa20°angle.

5. Care should be taken that switches are always

operatedwithinelectricalratings.

6. Orientation for switches can be changed from

normally open to normally closed dry or vice

versabyrotatingthefloat180°acrossitsaxis.

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Dimensions:

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Through Wall Installation:Omega Engineering’s LVH‐200 Series may be installed through the side wall of a

tank.TheLVH‐200serieshasdualmale1/2"NPTthreadsforinstallationfromtheoutsideofthetankinorthe

inside of the tank out.If the LVH‐200 is installed in the Outside‐In method, then the outer threads may be

usedforconnectiontoconduit.

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Inside‐Out

Installation

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Outside‐In

Installation

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ELECTRICAL StepTwo

Components:

Part

Number

Body

Material

Cable

Material

Thread

LVH‐200 PP Polymeric 1/2”NPT

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SwitchRating:

ReedSwitchRating Max.ResistiveLoad

VA Volts Amps(AC) Amps(DC)

30

0‐50 0.28

120 0.28 0.07

240 0.14

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NormallyOpenOperation: NormallyClosedOperation:

Orientation mark on the top of the float.In the dry

state, the float rests on the bottom of the stem and

thecircuitisopen.

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Orientation mark on the bottom of the float.In the

dry state, the float rests on the bottom of the stem

andthecircuitisclosed.

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As the switch becomes wet, the float becomes

buoyantandcircuitcloses.

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As the switch becomes wet, the float becomes

buoyantandcircuitopens.

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Contact Protection (Reed Switch):

When current is interrupted, the

inductance of the load generates a

highfrequencyvoltage,whichappears

across the switch contacts.If the

voltage is large enough, it can cause

arcing.Arcingcan cause the contacts

to weld to each other resulting in

unreliable switching performance.It

is essential to protect the circ

uit, by

suppressing the voltage to prevent

arcing.This can be accomplished

through the use of a diode for DC

circuits and a resistor‐capacitor

networkforACcircuits.

DCContactProtection:

ACContactProtection:

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Omega LVH-200 Owner's manual

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