Omega Products LV-40 User Manual
HIGH-TEMPERATURE LIQUID-LEVEL SWITCHES
All Stainless Steel Construction
LV-40/50 Series
$
75
Well Suited for Rough
or Corrosive Liquids
Water-Purifying
and Medical
Application Models
High-Pressure Models
up to 750 psi
Normally Open or
Normally Closed SPST
Switch, User Selectable
Mounts Vertically at Top
or Bottom of Tank
LV-40, $75, shown
smaller than
actual size.
1
⁄8 NPT
1
⁄2" Hex
3
⁄4"
1"
LV-50, $79,
shown smaller
than actual size.
1
5
⁄8" Hex
1
⁄16"
2
3
1
⁄32"
⁄4 NPT
3
⁄8"
3
Constructed entirely of 316 SS, the
LV-40 single-station level switch is
designed to withstand the effects of
a wide range of chemicals. With a
maximum operating temperature of
149°C (300°F), this switch is ideal
for medical and water purification. Its
small float displacement allows for
high accuracy and reliability in
shallow tanks and reservoirs.
See omega.com/level_ref for
maximum voltage/current ratings.
The LV-50 Series level switches
deliver superlative performance and
dependability under the most severe
operating conditions. The sensor
incorporates a larger float
displacement and all stainless steel
construction for consistent level
monitoring in liquids pressurized
up to 750 psi. Ideal for level sensing
in chemical plants and systems,
models are available for
temperatures up to 249°C (480°F).
SPECIFICATIONS
Stem Material: 316 SS
Float Material: 316 SS
Operating Temperature:
-40 to 149°C (-40 to 300°F);
-40 to 249°C (-40 to 480°F) for LV-52
1
⁄2" Dia
1
Pressure Rating: 100 psi for LV-40;
750 psi for LV-50 Series
Mounting:
for LV-50 Series
Switch: SPST
Switch Actuation: Approx.
distance from end of stem to mounting,
or at halfway point of float travel
Lead Wires: 22 AWG, 24" polymeric;
18 AWG, 24" polymeric for LV-50 Series
Specific Gravity of Float:
LV-40: 0.62; LV-50: 0.64
To determine fluid specific gravity,
add 0.1 to float specific gravity in clean
liquids and 0.3 to float specific gravity
in dirty or viscous liquids.
1
⁄8 NPT for LV-40; 1⁄4 NPT
1
⁄2 the
Solid State
Relays
Available!
For complete technical and ordering
information, please refer to the OMEGA
Temperature Measurement Handbook®.
1
⁄16"
2
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Model No. Price Temp. Rating Switch Rating
LV-40 $75 -40 to 149°C (-40 to 300°F) 10 VA
LV-50 79 -40 to 149°C (-40 to 300°F) 20 VA
LV-51 75 -40 to 149°C (-40 to 300°F) 100 VA
LV-52 122 -40 to 249°C (-40 to 480°F) 20 VA
Comes complete with operator’s manual.
Ordering Example: LV-51, all stainless steel high-temperature liquid-level switch with a
100 VA rating, $75.
LV-40, all stainless steel high temperature liquid-level switch with a 10 VA rating, $75.
K-93
®
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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