Omega Products LVN-90 User Manual
NEMA 6 (IP68) SIDE MOUNTED LIQUID
LEVEL SWITCHES
For High, Low, or Intermediate Level Sensing
U NEMA 6 (IP68) Rated
U User Selectable,
Normally Open or
Normally Closed
U Mounts Horizontally
LVN-92 shown actual size.
LVN-90 Series
These liquid level switches are
sealed with potting compound.
The only path for liquid to the
electrical switch would be through
the wires. If the wires are terminated
in an appropriate manner [eg.
NEMA 6 (IP68) connectors], the
level switch will meet or exceed a
NEMA 6 (IP68) rating, making them
suitable for submersion with years
of worry free operation in moistureladen environments. A sealed
SPST switch provides consistent
accuracy and high repeatability
with the effects of shock, vacuum
or vibration minimized.
The switch is extremely versatile
since it is user selectable as a
normally open or normally closed
by simply reversing the float or the
mounting of the switch. The
standard NPT male fittings allow for
quick installation in either the top or
bottom of the tank or vessel.
LVN-90 and LVN-92
WIRES ARE 20 AWG
24" LONG
(~600 mm LONG)
SEALED TO MEET NEMA VI
LVN-93
WIRES ARE 20 AWG
24" LONG
(~600 mm LONG)
SEALED TO MEET NEMA VI
1/2" NPT BOTH SIDES x 7/8" HEX
FITTING:
OVERALL LENGTH
= 4 1/4" NOM
(108 mm NOM)
1/2" NPT
7/8" HEX
(22 mm HEX)
OVERALL LENGTH
= 5 1/2" NOM
(140 mm NOM)
ANGLE
= 45˚ NOM
ANGLE = 30˚ NOM
3" NOM (76 mm NOM)
FLOAT
1/2" DIA NOM x
1 11/16" LONG NOM
(13 mm DIA NOM x
43 mm LONG NOM)
11/16" DIA NOM x 1 13/16" LONG NOM
(17 mm DIA NOM x 46 mm LONG NOM)
FLOAT
K
LVN-90 shown
smaller than actual size.
LVN-91 shown
smaller than actual size.
SPECIFICATIONS
Operating Temperature:
LVN-90 thru LVN-92: -40 to 82°C
(-40 to 180°F)
LVN-93: -40 to 149°C (-40 to 300°F)
Maximum Pressure Rating:
100 to 500 psi
Mounting: 1⁄2 NPT
Switch: SPST
Switch Actuation:
Approximately ¹⁄₂ the float travel in liquid
of 1.0 specific gravity
Lead Wires: 20 awg. 24" PVC
To Order Visit omega.com/lvn90 for Pricing and Details
Switch
Model No. Rating Stem/Float Temp.°C (F) Pres. Spec. Gravity
LVN-90 50 VA CPVC 82 (180) 100 psi 0.71
LVN-91 50 VA PVDF 82 (180) 100 psi 0.88
LVN-92 50 VA Polypropylene 82 (180) 100 psi 0.49
LVN-93 50 VA 316 SS 149 (300) 500 psi 0.85
Comes complete with operator’s manual.
Ordering Examples: LVN-93, 316 stainless steel level switch.
LVN-90, CPVC level switch.
K-88
Maximum
Float
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