Omega Products LVAB-11S User Manual
NON-INVASIVE AIR BUBBLE/
LEVEL DETECTOR
For Soft-Plastic Tubing
LVAB-10 Series
U Non-Invasive Design
U Not Affected by Tubing or Fluid Color
or Opaqueness
U Compact, Integral, Microprocessor
Based Design
U Sensors are Dry Coupled to Tubing,
No Gel Required
U High Noise Immunity to EMI/RFI
The OMEGA® LVAB10 non-invasive air bubble and
level detector provides continuous monitoring of fluid
level, air bubbles or foam in chemical processing and
infusion systems when connected to a capillary or
other type of tube. The LVAB10 will positively indicate
the presence of any break in the flow of any liquid with
a TTL output. The unit simply clamps onto the tube, it
never comes in contact with the liquid, so there is no
chance of contamination.
The LVAB10 consists of an ultrasonic sensor and
integral electronics. The electronics sends an
ultrasonic signal across the tube, the presence of
a bubble, air or foam in the liquid will interrupt the
transmission and generate an output. This output is
a real-time indication of the disturbance in the liquid.
LVAB-13S shown with
TYPP-3814 custom blue
tubing, sold separately,
visit omega.com/typp
K
LVAB-11S shown with FPU400 pump kits, supplied
with Norprene tubing, rollers, and mounting panel
sold separately, visit omega.com/fpu400 for details.
Shown smaller than actual size.
K-1
22
(0.85)
Mounting
Holes
ø 3
32 (1.25)
25 (1.0)
10
(0.40)
22
(0.85)
Mounting
Holes
ø 3
(0.11)
32 (1.25)
25 (1.0)
38 (1.5)
30 (1.2)
22
(0.85)
Mounting
Holes
38 (1.5)
30 (1.2)
22
(0.85)
Mounting
Holes
22
(0.85)
Mounting
Holes
ø 3
32 (1.25)
25 (1.0)
22
Mounting
Holes
32 (1.25)
25 (1.0)
SPECIFICATIONS
Temperature Range: 0 to 65°C
(32 to 150°F)
Output Signal: TTL (5 Vdc = liquid,
0 Vdc = air bubble)
Response Time: 1 millisecond
Cable Length: 0.9 m (3')
Input Power: 6 to 24 Vdc
Tubing Size:
3
⁄16, 1⁄4 or 3⁄8" OD
LVAB-11S Dimensions
Integral
Electronics
9
(0.35)
4 (0.15)
19
(0.75)
LVAB-12S Dimensions
Integral
Electronics
9
(0.35)
5
(0.20)
22
(0.85)
13
(0.5)
9 (0.37)
7
(0.26)
10
(0.40)
(0.85)
ø 3
(0.125)
(0.85)
ø 3
(0.11)
22
22
Dimensions: mm (inch)
ø = diameter
32 (1.25)
25 (1.0)
Mounting
Holes
32 (1.25)
25 (1.0)
Mounting
Holes
LVAB-13S shown
actual size.
Wiring
Input: Red = 6 to 24 Vdc
Black = Ground
Output: White = output
Response Time: 2 ms
Material: Epoxy
Electronics: Integral
Cable: 0.9 m (3')
LVAB-13S Dimensions
13
(0.52)
17
(0.65)
38 (1.5)
30 (1.2)
22
(0.85)
ø 3
(0.125)
9
(0.35)
Integral
Electronics
8
(0.31)
28
(1.10)
To Order Visit omega.com/lvab-10 for Pricing and Details
Model No. Description Tubing OD
LVAB-11S Level switch/air bubble detector ³⁄₁₆" soft
LVAB-12S Level switch/air bubble detector ¹⁄₄" soft
LVAB-13S Level switch/air bubble detector ³⁄₈" soft
Comes complete with operator’s manual.
Ordering Example: LVAB-12S, bubble/level detector for
(tubing sold separately).
K-2
1
" OD plastic tubing.
⁄
4
Mounting
Holes
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