Omega LVCN400 Series User manual

LVCN4300 & LVCN400 Series
Capacitive Level Measurement
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03
Contents
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Introduction .................................................4
Models & Dimensions .........................................5
Wiring Diagram ..............................................6
Installation ..................................................8
Calibration .................................................10
Handling ..................................................11
Technical Specifications ......................................12
Trouble Shooting ............................................13

04
LVCN4300 - Capacitive Point
Level Sensor
Features
Introduction
LVCN400 Series - Relay Controllers
The LVCN4300 Series, together with the LVCN400 Series Relay
Controllers are designed to detect the level of a wide variety of solids
and liquids, including both conductive and non-conductive materials.
Because of its all 316SS construction the is typically
specified for high temperature or high pressure applications, or for
appications requiring extremely high mechanical resistance in such
products as cement, sand, coal, grains, etc. When supplied with Halar
coated active sensing tip, the can be applied in corrosive or
aggressive mediums.
Made of 316 Stainless Steel, the LVCN4300 is available with various
types of process connections such as threaded, flange or sanitary.
Custom connections available upon request.
The LVCN400 Series can be ordered for varying supply voltages;
24Vdc ( , 110Vac or 220Vac with an
SPDT relay output.
LVCN4300
LVCN4300
LVCN401) (LVCN402) (LVCN403)
Wide range of applications/industries:
I.e. water, oils, corrosives, solids, powders, grains, etc.
Accurate and reliable measurement
No moving parts - Rugged construction
Can operate at high temperatures and pressure
Functions on conductive as well as non-conductive mediums
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05
Nylon Housing Aluminium Housing
Mounting Options for LVCN4300
LVCN4300 Standard
1”NPT
½”
L
20
100mm
126mm
89mm 89mm
Extended Necks for High Temperature
50mm
35mm
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LVCN401
Power
5a250VAC
+_S
111mm
69.8mm
6mm
84mm
LVCN400 Series Relay Controllers
76mm
89mm 80mm
L= Insertion length
Models & Dimension
Extended necks for medium (up to 120°C) and high temperature (up to 150°C)temperature
Note: Insertion Lengths greater than 150mm will require the balance to be ordered with a
non-active portion of that insertion length. This can affect how coatings can be ordered
with this model.
Threaded
3/4”
1½”
1½”
1½”
2½”
2½”
1”
2”
2”
2”
3”
1”
1,75
Tri-Clamp Flange
Process Connections
TC Connection
ANSI 150#
ANSI 300#
Rubber Seal
Process Connection
NPT BSP FF
RF
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06
LVCN4300- Nylon Housing
LVCN4300 - Aluminum Housing
LVCN4300
out Sens.
+_
123
(P1) Sensitivity Adjustment
(L1) LED: Indicates Level Detection
1- Positive
2- Negative
3- Out
Connection to the LVCN400 Controller
LVCN4300
on
123
+
_
out
Sens.
Wiring Diagram
1- Positive
2- Negative
3- Out
(L1) LED: Indicates Level Detection
(P1) Sensitivity Adjustment
Connection to the LVCN400 Controller
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07
Wiring Diagram
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LVCN401
Power
5 a 250 V AC
+_S
123
+
_
out
ControllerLVCN400 Series Relay
1-
2-
3-
5- Contact NO
6- Common
7- Common
8- Contact NC
14- Ground
15- Power Supply ( )( )
16- Power Supply ( )( )
L2- LED: Level Indication
L3- LED: Power
Out ( Probe Power supply)
& LVCN401LVCN4300 Probe Controller
(L2)
(L3)
Shielded
Note: The LVCN4300 series works in conjuction with the
LVCN400 Relay controller and will not work without it.
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08
Installation
A
B
Side view
Cover
Grounding
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LVCN401
Power
5 a 250 V AC
+_S
When making connections between the controller
and the probe use reliability cables and make sure
they are grounded.
Shielded cables prevent interference to the
eletronic signal and protect against false
measurements.
To avoid radio frquency interference and possible
malfunction, keep hand held communication
equipment away from the LVCN4300 and
LVCN400 Series. If this unavoidable make a metal
shield around the the level switch and confirm that
the unit has been properly grounded.
Do not install the controller in harsh environments
and humid. Respect class protection, working
temperature and protect the same from rain and
excessive heat.
Also confirm that a stable Power Supply is used to
prevent equipment malfunction.
Controller Mounting
Panel mounting with
the protection cover
A- DIN trail (35mm)
B- Screws
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Installation
09
500mm
500mm
500mm
Fig. 1
Fig. 3
Fig. 4
Shield
Fig. 2
Fig. 5
Verify that the location the probe is to be mounted
is not directly in the path of the product as it enters
the vessel. (Fig. 1)
When installing more than one probe, verify that
they are separated by a minimum distance of
500mm. (Fig. 1)
Material falling onto the probe can cause damage
or switching errors. If this is unavoidable, it is
recommended that a protective shield be installed
above the probe. The shield is also recommended
when the probe is use for a low level switch or in
the outflow of the product. (Fig. 2)
The tip of the probe should point slightly
downward ( when possible) so that if there is any
excess of product it will easily slide from the
probe. (Fig. 2)
When installing from the top of the tank confirm
that the tip of the probe has cleared the side of the
vessel at least 500mm. (Fig. 3)
When installing the sensor directly to the tank
make sure that the rod extends beyond the inner
wall of the tank, by as much as possible, so that
internal build up or other debris does not interfere
with the sensor's performance. (Fig. 2 correct Fig.
4 incorrect)
Ensure that the conduit is facing downward so that
water does not enter the housing from the cable
entry point. (Fig. 5)
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10
Calibration
LVCN4300
LVCN4300
out Sens.
+_
123
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LVCN401
Power
5A - 250 V AC
+_S
out Sens.
+_
123
Calibration
Fig.1
Fig.2
1. Install the probe and power it on. The green
LED (L3) on the controller should be on.
4.Fill the tank until the probe is in contact with the
medium.
5. Turn the potentiometer clockwise until the LED
(L1) of the probe and the LED (L2) on the
controller are on. (Fig.2)
Products with a low dielectric constant may
require most or all of the active length of the probe
to be covered by the product before the controller
activates the relay.
2.Turn the potentiometer (P1) counter-clockwise
(Fig.1) before the tank is filled.
red
Probe: (L1)- on
Controller: (L2)- on
(L3)- on
L1
L1
L2
L3
Probe: (L1)- off
Controller: (L2)- off
(L3)- on
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11
Handling
Probes:
Fig. 3
Fig. 4
Fig. 5
Fig. 1
Fig. 2
Care should be taken when handling and installing
probes with coated rods to avoid scratching them.
Scratching the coating could interfere with the
probe performance.
Periodic visual inspection of the probe is required
to check for corrosion or deposit build-up. If
deposits are found, clean the sensor to ensure
optimum performance.
The probe should not be dropped or suffer any
impact or fall that could damage the electronics or
the coating of the probe. (Fig. 4 and 5)
Seal the thread with Teflon tape before
installation. (Fig. 1)
Do not turn or handle by the housing. (Fig. 2)
When tightening the sensor, use only use the
316S.S. hexagon fitting to achieve a seal, do not
twist with the body of the sensor. (Fig. 3)
When cleaning the rod use a soft brush or rag.
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12
LVCN4300 + LVCN400 Series
2VA
Application
Power Supply
Consumption
Electrical Connection
Operating Temperature
Cable Gland - 1/2” NPT or M12 connector
Output
Max. Pressure
Probe: IP 65 / Controller: IP40
Housing Nylon Fiberglass (Optional Aluminum)
316SS, ETFE or ECTFE Coated
Class Protection
Process Connection
Adjustment
Sensitivity
Level Indication
Sensibility
0to5pF
Level Detection for Solids and liquids.
290 PSI (20 Bar)
3/4” to 1 1/2” BSP or NPT Flange or Sanitary
Probe: (-10 to 120ºC) / Controller -10 to 60°C
Nylon housing
Aluminum housing
Wetted Parts
Technical Specification
LVCN4300
out Sens.
+_
123LVCN4300
on
123
+
_
out
Sens.
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LVCN401
Power
5 a 250 V AC
+_S
LVCN400 - Controller
LED ON/OFF
Relay (SPDT) 5A-250Vac
Enclosure Material Relay : ABS ( Resistant thermoplastic)
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LVCN401: 24Vdc (+/- 10%)
LVCN402: 110Vac (50/60Hz)
LVCN403: 220Vac (50/60Hz)

13
Trouble Shooting
Fail
Relay does not
work
Relay does not
turn off
LED off,
without Power Supply
Verify the connections
Consult for repair or
replacement
Check the Power Supply
Cause Solution
Material Build-up on the rod Clear the rod
Low sensitivity Adjust sensitivity with
the potentiometer
Coating on the rod
is damaged
Lack of signal from
LVCN400
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M-3995/0912