Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
User’s Guide
TEMPERATURE
Ⅺ
ߜ Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Infrared Pyrometers
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ PRESSURE, STRAIN AND FORCE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Transducers & Strain Gauges
Load Cells & Pressure Gauges
Displacement Transducers
Instrumentation & Accessories
“
FLOW/LEVEL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
e-mail: [email protected]
Totalizers & Batch Controllers
pH/CONDUCTIVITY
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
IP
68
DATA ACQUISITION
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Recorders, Printers & Plotters
HEATERS
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Heating Cable
NRTL/C
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
LTU-101, LVU-150, LVC-152
LVC-100 & LVF-210 Series
Powered Level Switch
Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
M-3949/0403
T h e s e p r o d u W c t A s R a N r e I N n G o t : d e s i g n e d f o r u s e i n , a n d s h o u l d n o t b e u s e d f o r , h u m a n a p p l i c a t i o n s .
a n , s d n i r e a t s n e o r v c e s t h e r i g h t t o a l t e r s p e c i f i c a t i o n s w i t h o u t n o t i c e .
w i t h o u t t h e p r i o
r e d o u r c e d t o a n y t r a e n l e s c l a t r t o e n d i , c m r e e p d r i o u d m u c c o o e r p d m i , e a d c , h i n e - r e a d
© C o p y r i g h t 2 0
e r r o r s i t
T h e i n f o r m a t i o n c o n t a i n e d i n t h i s d o c u m e n t i s b e l i e v e d t o b e c o r r e c t , b u t O M E G A E n g i n e e r i n g , I n c . a c c e p t s n o l i a b i l i t y f o r a n y
a d d t h e C E m a r k t o e v e r y a p p r o p r i a t e d e v i c e u p o n c e r t i f i c a t i o n .
i s c o n s t a n t l y p u r s u i n g c e r t i f i c a t i o n o f i t s p r o d u c t s t o t h e E u r o p e a n N e w A p p r o a c h D i r e c t i v e s . O M E G A w i l l
I t i s t h e p o l i c y o f O M E G A t o c o m p l y w i t h a l l w o r l d w i d e s a f e t y a n d E M C / E M I r e g u l a t i o n s t h a t a p p l y
O M E G A i s a r e
. O M E G A
T h i s a f f o r d s o u
p s ’ o l i c y i s O t o M m E G a k A e r u n n i
e - m a i l : s a l e s @ o m e g a . f r
e - m a i l : s a l e s @ o m e g a . c o . u k
0 8 0 0 - 4 8 8 - 4 8 8
e e i n o U T l n l F i t r e d K i n g d o m :
r e l a t i v e t o t h e p r o d
R e p 3 a . i r i n s t r u c t i o n s
w a r r a n t y
M . o 2 d e l a n d s e r i a l n u
w a s P U R C H A S E D ,
P u r 1 c . h a s e O r d e r n u
e e i n o F T l r l a F n r c e : 0 8 0 0 4 6 6 3 4 2
A X : + 3 3 ( 0 ) 1 3 0 5 7 5 4 2 7 l : e + T 3 3 ( 0 ) 1 6 1 3 7 2 9 0 0
7 8 2 8 0 G u y a n c o u r t , F r a n c e
e u J a c 1 q 1 , u r e s C a r t i e r
r e l a t i v e t o t h e p r o d u c t .
R e p 3 a . i r i n s t r u c t i o n s a n d / o r s p e c i f i c p r o b l e m s
F
, a n d
M o 2 d . e l a n d s e r i a l n u m b e r o f t h e p r o d u c t , a n d
o f t h e r e p a i r
d r e r O n u m b e r . P t o 1 u r c h o a v s e r t h e C O S T
A F X : + 4 4 ( 0 ) 1 6 1 7 7 7 6 6 2 2
l : e + T 4 4 ( 0 ) 1 6 1 7 7 7 6 6 1
U n i t e d K i n g d o m
,
1
F r a n c e :
O M E G A :
O M E G A :
f o l l o w i n g i n f o r m
R E T U R N S , p A l e R W a R s e A h N F a O T v R Y e t h e
M a n c h e s t e r M 4 4 5 B D
N o r t h b a n k , I r l a m
e c h n o l o g y C e R n i t v r e r B e n d T
O n e O m e g a D r i v e
l o w i n g i n f o r m a t i o n a v a i l a b l e B E F O R E c o n t a c t i n g
O M E G A f o r c u r r e n t r e p a i r c h a r g e s . H a v e t h e f o l -
e - m a i l : i n f o @ o m e g a s h o p . c z
e e : 0 8 o 0 T l 0 l - F 1 r - 6 6 3 4 2
4 2 + 0 : X ( 0 A ) F 5 9 6 3
4 2 + 0 : l ( e 0 T ) 5 9 6 3 1
c o n s u A l t I R S R , E P
A R R A N N T Y O N F - W O R
e
4
1 1 1 1
1 8 9 9
t o p r e v e n t b r e a k
T h e p u r c h a s e r i s r e s p o n a s n i b y l e c o f o r r r e s s h p i p o p n i d n
Y S ) . T D h E e L a A s s i g n e d A
t i f i e d
I S O 9 0 0 2 C e r
U n i t e d K i n g d o m :
´ , C z e c h R e p u b l i c
F r y s t a t s k a 1 8 4 / 4 6 , 7 3 3 0 1 K a r v i n a
C z e c h R e p u b l i c :
V O I D P R O C E S S I N G
T M A E R N T ( I N V O I R C D E E D R E T P O
A I N A N A U T H O R I Z E D R E T U R N ( A R )
A
’ S C U S T O M E R S E R
N U M B E R F R O M
e - m a i l : i n f o @ o m e g a . d e
e e i n o G T l e l r F m r a n y : 0 8 0 0 6 3 9 7 6 7 8
A F X : + 4 9 ( 0 ) 7 0 5 6 9 3 9 8 - 2 9
l : e + T 4 9 ( 0 ) 7 0 5 6 9 3 9 8 - 0
o n n , G e r m D a n e y c k e n p f r
D a i m l e r s t r a s s e 2 6 , D - 7 5 3 9 2
A N Y P R O D U C R T E ( T S U ) R T N O I N O G M E G
e - m a i l : s a l e s @ o m e g a e n g . n l
e e i n o B T l e l n F e r l u x : 0 8 0 0 0 9 9 3 3 4 4
D i r e c t a l l w a r r a
I N / Q U I R I E S
R E T U R N R E Q U E S T S
A X : + 3 1 ( 0 ) 2 0 6 4 3 4 6 4 3 l : e + T 3 1 ( 0 ) 2 0 3 4 7 2 1 2 1
F
.
s u c h a m a n n e r
h o l d O M E G A h a
T h e N e t h e r l a n d s
P o s t b u s 8 0 3 4 , 1
B e n e l u x :
A m s t e l v 1 e 8 e 0 n L A
, p u r c h a s e r w i l l i n d e m n i f y O M E G A a n d D / I S C L A I M E A R R l R a n A g N u T a Y g e , a n i n d , o a u d r d b i t a i o s n i c a l W l y
G e r m a n y / A u s t r i a :
, O M E G A a s s u m e s n o r e s p o n s i b i l i t y a s s e t f o r t h
m e d i c a l a p p l i c a
a p p l i c a t i o n s o r u
C o m p o n e n t ” u n
C O N D I T I O N S : E
n o e v e n t s h a l l
o t h e r w i s e , s h a
,
S e r v i c i n g E u r o p e :
C A B L E : O M E G A
i n f o @ o m e g a . c o m . m x
e - m a i l : e s p a n o l @ o m e g a . c o 1 m / - 8 0 0 - U S A - W H E N
T E L E X : 9 9 6 4 0 4 E A S Y L I N K : 6 2 9 6 8 9 3 4
E n g i n e e r i n g S e r v i c e : 1 - 8 0 0 - 8 7 2 - 9 4 3 6
C u s t o m e r S e r v i c e : 1 - 8 0 0 - 6 2 2 - 2 3 7 8
S a l e s S e r v i c e : 1 - 8 0 0 - 8 2 6 - 6 3 4 2
®
, n e g l i g e n c e , i n d e m n i f i c a t i o n , s t r i c t l i a b , i w l i h t y e t o o h r r e d r e b r a s e d o n
p u r c h a s e r s e t
A F X : ( 0 0 1 ) 2 0 3 - 3 5 9 - 7 8 0 7
1 / - 8 0 0 - 6 2 2 - B E S T
1 / - 8 0 0 - T C - O M E G A
®
: T h e r e m e d i e s o f T I A O N O F L I A B I L I T Y
I C T U R L A A P R P U R P O S E
A R W R A N T I E S I N
o l : ( 0 0 1 ) 2 E 0 n 3 - 3 E 5 s 9 p - a 7 n 8 0 3
®
~
A B I L I T Y A N D F I T N E S S F O A R R A R A N T Y O F M E R C H A N T
M e x i c o :
a n d C U a S n A a d a :
T O F T I T L E , A N D A L L I M P L I E D
A R R A N T I E S O R R E P R E S E N T
T S O E V E R , E X P R E S S O F O R A N I M Y P K L I N E D D ,
s p e c i f i e d a n d
F o r i m m e d i a t e t e c h n i c a I l O T o N A r S a p p l i c a t i o n a s s i s t a n c e :
e i t h e r v e r b a l
t h a t r e s u l t f r o
e - m a i l : i n f o @ o m e g a . c o m
A F X : ( 2 0 3 ) 3 5 9 - 7 7 0 0
e l T : ( 2 0 3 ) 3 5 9 - 1 6 6 0
e - m a i l : i n f o @ o m e g a . c a
A F X : ( 5 1 4 ) 8 5 6 - 6 8 8 6
e l T : ( 5 1 4 ) 8 5 6 - 6 9 2 8
L a v a l ( Q u e b e c ) H 7 L
9 7 6 B e r
n e i t h e r a s s u m
, O M E G A
O M E G A i s p l e
C o m p o n e n t s w h
t i o n ; i m p r o p e r s
s h o w s e v i d e n c e
c s ’ o n t r o l .
d C T 0 6 9 S 0 t a 7 m - 0 f 0 o 4 r 7
O n e O m e g a D r i v e , B o x 4 0 4 7
I S O 9 0 U 0 1 S A C : e r
5 A 1 , C a n a d a
A R R A N T Y i s V O I D i f t h e u r n i z i e t d s h m o w o d s i f e i c v a i d t i e
l i m i t e d t o m i s h a
g a r
, o r u n a u t h o -
, i n c l u d i n g b u t n o t
t i f i e d
C a n a d a :
A R R W s ’ A N T Y d O o e M s E n G o A t a p p l y t o
e x a m i n a t i o n b y
t h A m e r i c a v : i c i S n e g r N o r
D e p a r t m e n t w i l l
s C ’ u s t o m e r S e r v i c e
I f t h e u n i t m a l f
i n f o @ o m e g a . c o m
. o m e g w a w . c o w m
O M E G A n e t
c s ’ u s t o m e r O s M r e E c G e i A v e m a x i m
t o c o v e r h a n d l i n g a n d s h i p p i n g t i m o e n . e T h ( 1 i s ) e y n e s a u r r e p t s o r t o h t h d a e u t c n t o r w m a a r l r a
r r a a n t W y s ’ a d d s a n a d d i t i o n a l o n e ( 1 ) m o n f r t o h m g r d a a c t e e p o e f r 1 p i o 3 u d r m c h o o a n d s e t o h . f O s M E G A
O M E G A E N G I N
e - m a i l I n t e r n e t
e c i v r e S e n i L - n O ®
®
S A U
o
D / I S C L A I M E A R R W R A N T Y
®
I N
M A D
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DIMENSIONS
Step Two
Vibration Level Switch, LTU-101 series
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" G)
10’ Cable (3m)
2.3"(57mm)
3.0"(76mm)
4.7"(120mm)
Ultrasonic Level Switch, LVU-150 series
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" G)
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" Rp)
10’ Cable (3m)
10’ Cable (3m)
0.7"
2.1"(54mm)
2.8"(71mm)
4.5"(114mm)
(19mm)
1.3"(32mm)
3.0"(76mm)
SuperGuard RF Capacitance Level Switch, LVC-152 series
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" G)
10’ Cable (3m)
2.6"(67mm)
3.3"(83mm)
5.0"(127mm)
Intrusive RF Capacitance Level Switch, LVC-100 series
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" G)
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" Rp)
10’ Cable (3m)
10’ Cable (3m)
2.1"(54mm)
2.8"(70mm)
0.7"
(19mm)
1.3"(32mm)
4.5"(114mm)
3.0"(76mm)
Optic Leak Detection Switch, LVF-210 series
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" Rp)
3/4" NPT (3/4" G)
10’ Cable (3m)
10’ Cable (3m)
0.7"
2.1"(54mm)
2.8"(71mm)
4.5"(114mm)
(19mm)
1.3"(32mm)
3.0"(76mm)
* all dimensions are Nominal
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SAFETY PRECAUTIONS
INTRODUCTION
Step Three
Step Four
About this Manual:
Vibration Switch:
PLEASE READ THE ENTIRE MANUAL PRIOR TO
INSTALLING OR USING THIS PRODUCT. This manual
includes information on all models of Omega’s powered level
switches: LTU-101 series, LVU-150 series, LVC-152 series, LVC-
100 series and LVF-210 series. Please refer to the part number
located on the switch label to verify the exact model which you
have purchased.
The Tuning Fork vibration switch operates at a nominal frequency of
400 Hz. As the switch becomes immersed in a liquid or slurry, a cor-
responding frequency shift occurs. When the measured frequency
shift reaches the set point value, the switch changes state indicating
the presence of a liquid or slurry medium.
Do not squeeze the forks together. Doing so could damage or
break the sensor and void the warranty.
User’s Responsibility for Safety:
When powering up the LTU-101 series, the start-up procedure
requires the switch to cycle through a wet condition for 1/2 second in
order to determine an initial resonance.
Omega manufactures a wide range of liquid level sensors and tech-
nologies. While each of these sensors is designed to operate in a
wide variety of applications, it is the user’s responsibility to select
a sensor model that is appropriate for the application, install it
properly, perform tests of the installed system, and maintain all
components. The failure to do so could result in property damage
or serious injury.
Ultrasonic Switch:
The Ultrasonic level switch generates a 1.5 MHz ultrasonic wave
from a miniature piezoelectric transducer located on one side of the
gap in its sensing tip. Another piezo transducer located on the other
side of the gap acts as a microphone, picking up the sound. When liq-
uid enters the gap in the sensing tip, the audio level changes.
Proper Installation and Handling:
Because this is an electrically operated device, only properly-
trained staff should install and/or repair this product. Use a proper
sealant with all installations. Never overtighten the sensor within
the fitting, beyond a maximum of 80 inch-pounds torque. Always
check for leaks prior to system start-up.
The sensor should be installed so that the liquid will drip out of
the gap when the sensor becomes dry.
Optic Switch:
Material Compatibility:
The Optic Leak Detector use principles of optical refraction to detect
the presence or absence of fluid. A pulsed infrared light beam is inter-
nally generated by a light emitting diode and aimed at the slanted
optical tip of the sensor. If the tip is dry, the light beam bounces at a
90 degree angle to a receiving photo transistor, indicating a dry con-
dition. If the tip is immersed in liquid, the light beam will refract out
into the liquid instead of being reflected to the photo transistor, indi-
cating a wet condition.
The LVU-150, LVC-100 and LVF-210 series sensors are available
in two different wetted materials. Models LVU-150/-152, LVC-
101/-103 and LVF-210/-212 are made of Polypropylene(PP).
Models LVU-151/-153, LVC-102/-104 and LVF-211/-213 are
made of Perfluoroalkoxy(PFA), also known by the trade name
Teflon. The LTU-101 series is made of PP with the forks made of
Ryton (40% glass filled) and the LVC-152 series is made of PP.
Make sure that the model you have selected is compatible with the
application liquid. To determine the chemical compatibility
between the sensor and its application liquids, refer to an industry
reference.
The Optic Leak Detector can not detect the presence or
absence of specular application liquids that reflect light (such
as milk), or viscous liquids (such as paint) that form a coating
on the sensor tip.
Wiring and Electrical:
The supply voltage used to power the sensor should never exceed
a maximum of 36 volts DC. Electrical wiring of the sensor should
be performed in accordance with all applicable national, state, and
local codes.
SuperGuard Capacitance Switch:
The SuperGuard level switch generates a pulse-wave radio frequency
signal from the capacitance electrode located in the sensing tip of
each sensor. When liquid comes into contact with the sensing tip, the
capacitance as measured by the sensor changes based on the dielec-
tric constant of the liquid. The guard circuit rejects the negative
effects of coating buildup on the probe by eliminating the coating sig-
nal path between the active and reference electrodes.
Flammable, Explosive and Hazardous Applications:
DO NOT USE THE LTU-101, LVU-150, LVC-152, LVC-100 OR
LVF-210 SERIES GENERAL PURPOSE SWITCH IN HAZ-
ARDOUS LOCATIONS.
Intrusive RF Capacitance Switch:
WARNING
The Intrusive RF Capacitance level switch generates a 300 kHz pulse-
wave radio frequency signal from the capacitance electrode located in
the sensing tip of each sensor. When liquid comes into contact with
the sensing tip, the capacitance as measured by the sensor changes
based on the dielectric constant of the liquid.
The rating for the relay is 120 VAC/60 VDC @ 1A. For CE
rated applications, the relay rating is 60 VAC/60 VDC @ 1A.
Omega’s powered level switches are not recommended for use
with electrically charged application liquids. For most reliable
operation, the liquid being measured may need to be electrical-
ly grounded.
The sensor’s operation may vary based on the dielectric prop-
erties of various application liquids. The LVC-152 series &
LVC-100 series sensor is factory-calibrated to be used with liq-
uids with a dielectric value between 20 and 80.
Liquids with a dielectric constant less than 20 will not
be detected by an LVC-152 series & LVC-100 series sen-
sor, as factory calibrated.
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INSTALLATION
ELECTRICAL
Step Five
Step Six
Supply Voltage:
Through Wall Installation:
The supply voltage to the powered level switch should never exceed
a maximum of 36 VDC. Omega controllers have a built-in 13.5 VDC
power supply which provides power to all of Omega’s electrically
powered sensors. Alternative controllers and power supplies, with a
minimum output of 12 VDC up to a maximum output of 36 VDC,
may also be used with the powered level switch.
Omega’s powered level switches may be installed through the top,
side or bottom of a tank wall. The sensor has male 3/4" NPT threads
on either side of a 15/16" wrench flat. This enables the user to select
the sensor’s mounting orientation, installed outside of the tank in, or
inside of the tank out.
Required Cable Length:
Determine the length of cable required between the powered level
switch and its point of termination. Allow enough slack to ensure the
easy installation, removal and/or maintenance of the sensor. The
cable length may be extended up to a maximum of 1000 feet, using a
well-insulated, 14 to 20 gauge shielded four conductor cable.
Wire Stripping:
Using a 10 gauge wire stripper, carefully remove the outer layer of
insulation from the last 1-1/4" of the sensor's cable. Unwrap and dis-
card the exposed foil shield from around the signal wires, leaving the
drain wire attached if desired. With a 20 gauge wire stripper, remove
the last 1/4" of the colored insulation from the signal wires.
Multi-Point Installation:
Omega’s LVM-10 series mounting system is an in-tank fitting which
enables users to install up to four OMEGA sensors of any technology,
to any depth, along the entire length of track. LVM-10 series may be
installed through the top wall of any tank using a standard 2" NPT
tank adapter. If no tank top installation is available, Omega's side
mount bracket, LVM-30, enables LVM-10 series to be installed
directly to the side wall of a tank.
Signal Outputs (Current sensing):
The standard method used by Omega controllers; this technology uses
only two wires (Red and Black). The sensor draws 5 mA when it is dry,
and 19 mA when wet. NC/NO status must be set by the controller. The
White and Green wires are not used.
Single-Point Installation:
Omega’s LVM-50 series mounting system is an in-tank fitting which
enables users to install one OMEGA sensor, of any technology, to a
specific depth. The Omega sensor may be installed onto the 3/4" NPT
adapter at the end of the LVM-50 series. LVM-50 series may be
installed through the top wall of any tank using a standard 2" NPT
tank adapter. Omega's side mount bracket, model LVM-30, may also
be used if top wall installation is not available.
Signal Output (Relay switching):
Allows the sensor to switch a small load on or off directly, using an
internal 1A relay (60 VAC/60 VDC). Omega’s powered level switch-
es features 4 wires (red, black, white and green) and a shield wire. The
NO/NC status is set by the polarity of the voltage feeding the red and
black wires. The green wire is the common for the relay and the white
wire is the NO or NC, depending on the polarity of red and black.
Normally Open Wiring:
Normally Open Wiring:
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WIRING
WIRING
Step Seven
Step Eight
Wiring to a Omega Controller:
LVCN-110 Series Controller
(4 or 20 mA signal output)
Wiring the Relay Output:
The relay output can be wired as a dry contact to a VDC or VAC
power source. Powered level switch does require 12 - 36 VDC power
to operate the sensor and switch the relay. All illustrations below
identify a Dry switch state as the normal position of the relay.
Switching a Normally Open DC Load:
The Red wire connects to Positive (+) of the power supply and the
Black wire connects to Negative (-). The LOAD can be attached to
either the Green or White wires. Complete the circuit by either con-
necting the Green to (+) VDC power or White to (-) VDC power (see
illustration below).
[Dry Condition]
LCVN-120/-130/-140 Series Controller
(4 or 20 mA signal output)
[+]
RED
GRN
SHLD
WHT
BLK
LOAD
LOAD
Sensor
(NO)
OR
[-]
Switching a Normally Closed DC Load:
The Black wire connects to Positive (+) of the power supply and the
Red wire connects to Negative (-). The LOAD can be attached to
either the Green or White wires. Complete the circuit by either con-
necting the Green to (+) VDC power or White to (-) VDC power (see
illustration below).
[Dry Condition]
[+]
BLK
GRN
SHLD
WHT
RED
Sensor
(NC)
LOAD
LOAD
OR
[-]
Switching a Normally Open AC Load:
The Red wire connects to Positive (+) of the DC power supply and the
Black wire connects to Negative (-). The LOAD can be attached to
the Green wire and the Hot of the VAC power. Connect the White to
the Neutral of the VAC power (see illustration below).
[Dry Condition]
[+]
[AC Power]
[-]
RED
GRN
SHLD
WHT
BLK
LOAD
Sensor
(NO)
Switching a Normally Closed AC Load:
The Black wire connects to Positive (+) of the DC power supply and
the Red wire connects to Negative (-). The LOAD can be attached to
the Green wire and the Hot of the VAC power. Connect the White to
the Neutral of the VAC power (see illustration below).
[Dry Condition]
[+]
BLK
GRN
SHLD
WHT
RED
LOAD
Sensor
(NC)
[AC Power]
[-]
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WIRING
MAINTENANCE
Step Nine
Step Ten
Wiring as a P-Channel or N-Channel output:
The powered level switch can be substituted for either a P-Channel
(PNP, sourcing) output or a N-Channel (NPN, sinking) output.
General:
The powered level switch requires no periodic maintenance except
cleaning as required. It is the responsibility of the user to determine
the appropriate maintenance schedule, based on the specific charac-
teristics of the application liquids.
Normally Open DC Load as a P-Channel Output:
To wire as a NO P-Channel output, follow the directions below. The
Red wire connects to Positive (+) of the power supply and the Black
wire connects to Negative (-). The Green wire is jumpered to the Red
wire while the White wire is connected to the LOAD. Jumper the
LOAD back to the Negative (-) to complete the circuit.
Cleaning Procedure:
1. Power: Make Sure that all power to the sensor, controller and/or
power supply is completely disconnected.
2. Sensor Removal: In all through-wall installations, make sure
that the tank is drained well below the sensor prior to removal.
Carefully, remove the sensor from the installation.
[Dry Condition]
[+]
[-]
RED
GRN
SHLD
WHT
BLK
3. Cleaning the Sensor: Use a soft bristle brush and mild deter-
gent, carefully wash the powered level switch. Do not use harsh
abrasives such as steel wool or sandpaper, which might damage
the surface sensor. Do not use incompatible solvents which may
damage the sensor's PP, PFA, PVDF or Ryton plastic body.
Sensor
(NO)
LOAD
4. Sensor Installation: Follow the appropriate steps of installa-
Normally Closed DC Load as a P-Channel Output:
tion as outlined in the installation section of this manual.
To wire as a NC P-Channel output, follow the directions below. The
Black wire connects to Positive (+) of the power supply and the Red
wire connects to Negative (-). The Green wire is jumpered to the
Black wire while the White wire is connected to the LOAD. Jumper
the LOAD back to the Negative (-) to complete the circuit.
Testing the installation:
1. Power: Turn on power to the controller and/or power supply.
2. Immersing the switch: Immerse the sensing tip in its applica-
tion liquid, by filling the tank up to the switches point of actua-
tion. An alternate method of immersing the switch during prelim-
inary testing is to hold a cup filled with application liquid up to
the switch's tip.
[Dry Condition]
[+]
[-]
BLK
GRN
SHLD
WHT
RED
Sensor
(NC)
3. Test: With the switch being fluctuated between wet and dry
states, the switch indicator light in the controller should turn on
and off. If the controller doesn't have an input indicator, use a volt-
meter or ammeter to ensure that the switch produces the correct
signal.
LOAD
Normally Open DC Load as a N-Channel Output:
To wire as a NO N-Channel output, follow the directions below. The
Red wire connects to Positive (+) of the power supply and the Black
wire connects to Negative (-). The White wire is jumpered to the
Black wire while the Green wire is connected to the LOAD. Jumper
the LOAD back to the Positive (+) to complete the circuit.
4. Point of actuation: Observe the point at which the rising or
falling fluid level causes the switch to change state, and adjust the
installation of the switch if necessary.
[Dry Condition]
[+]
[-]
RED
GRN
SHLD
WHT
BLK
LOAD
Sensor
(NO)
Normally Closed DC Load as a N-Channel Output:
To wire as a NC N-Channel output, follow the directions below. The
Black wire connects to Positive (+) of the power supply and the Red
wire connects to Negative (-). The White wire is jumpered to the Red
wire while the White wire is connected to the LOAD. Jumper the
LOAD back to the Positive (+) to complete the circuit.
[Dry Condition]
[+]
[-]
BLK
GRN
SHLD
WHT
RED
Sensor
(NC)
LOAD
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