Sitron-VT Vibrating Fork Level Catalog
7
Models: VTK-DC VTK-R MVTK-DC MVTK-AC Introduction The V-Tork is a point level switch that is designed to detect low or high level of liquids (such as water and oil), thick and turbulent fluids, as well as corrosive mediums and pastes (depending on viscosity). Due to its simple and rugged controlled system, the V-Tork is virtually unaffected by any chemical or physical properties of the mediums and can be installed at any angle of the pipe or tank. It is ideal for multiple-purpose processing where the probes must be compatible with a variety of process materials and process conditions. The V- Tork does not require recalibration between batches and can also be cleaned in place. The V-Tork can operate in temperatures up to 176ºF (80ºC) and has a maximum working pressure of 725 PSI (50Bar). All models are made with 316 S.S. and are available with PTFE coatings or in hygienic versions for sanitary applications. Standard probes are available with 3/4” up to 1” BSP or NPT process connection and insertion length L= 3 1/8” (L= 80mm). Technology Sitron's V-Tork is based on the vibrating tuning fork principle, using piezo-electric crystals. The switch vibrates at a resonant frequency. When the tuning fork is submerged in the product, the frequency will change. This change is detected by the integrated oscillator and converted into a switching output. (The integrated electronics evaluates the level signals, according to the oscillation of the sensor's crystal, and then provides an accurate output signal). Sitron’s V- Tork Vibrating Tuning Fork for Level Detection
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Models: Introduction The V-Tork can operate in temperatures up to 176ºF (80ºC) and has a maximum working pressure of 725 PSI (50Bar). All models are made with 316 S.S. and are available with PTFE coatings or in hygienic versions for sanitary applications. Standard probes are available with 3/4” up to 1” BSP or NPT process connection and insertion length L= 3 1/8” (L= 80mm). 3 ½” (89 mm) _ O L 2” (50 mm)
Transcript of Sitron-VT Vibrating Fork Level Catalog
Models:
VTK-DC
VTK-R MVTK-DC MVTK-AC
Introduction
The V-Tork is a point level switch that is designed to detect low or high level of liquids (such as water and oil), thick and turbulent fluids, as well as corrosive mediums and pastes (depending on viscosity). Due to its simple and rugged controlled system, the V-Tork is virtually unaffected by any chemical or physical properties of the mediums and can be installed at any angle of the pipe or tank. It is ideal for multiple-purpose processing where the probes must be compatible with a variety of process materials and process conditions. The V-Tork does not require recalibration between batches and can also be cleaned in place.
The V-Tork can operate in temperatures up to 176ºF (80ºC) and has a maximum working pressure of 725 PSI (50Bar).
All models are made with 316 S.S. and are available with PTFE coatings or in hygienic versions for sanitary applications. Standard probes are available with 3/4” up to 1” BSP or NPT process connection and insertion length L= 3 1/8” (L= 80mm).
Technology
Sitron's V-Tork is based on the vibrating tuning fork principle, using piezo-electric crystals. The switch vibrates at a resonant frequency. When the tuning fork is submerged in the product, the frequency will change. This change is detected by the integrated oscillator and converted into a switching output. (The integrated electronics evaluates the level signals, according to the oscillation of the sensor's crystal, and then provides an accurate output signal).
Sitron’s V- TorkVibrating Tuning Fork for Level Detection
The VTK-DC is a compact point level switch designed to detect the level of several types of liquids and some fine solids. It is the ideal solution for applications that are connected directly to a PLC. A visual indication is given by a central LED that shows the working status of the unit. The VTK-DC is made with 316 S.S. with a glass filled nylon enclosure, it is available in a great variety of process connections, such as threaded, sanitary or flange and can be PTFE coated when necessary for aggressive mediums.
VTK-DC Power Supply: 20-60VDC (3 wire)Output: PNP Transistor
DIMENSIONSDIMENSIONS WIRING DIAGRAMWIRING DIAGRAM
+
_ OUT
PLC
ModeDRY
LED
DRY
WET
WET
11
22
33
44
18 … 60 V dc( IL ) 500 mA Máx
1 5 10 20ON
12
ON
12
ON
12
ON
12
ON
1 2
PLC connection
Unaffected by product variations in density, conductivity, or dielectric constant.Unaffected by foam, tank agitation or vibration.Various length options to best suit your application.Made with 316 S.S. and can be PTFE coated when necessary.Relay and Transistor outputs available.Various process connections: Thread, Tri-Clamp, Hygienic Fittings, Flanges, etc.Polished Forks - RA tested when necessary approved
Features
2” (
50 m
m)L
3” (
76 m
m)
3/4” or 1”BSP ou NPT
3 ½” (89 mm)
Sitron-USA, Inc. 21 West Nicholai St. Hicksville, NY 11801 Ph:(516) 935-8001 Fax: (516) 935-6001 e-mail: [email protected] -
The VTK-R is a compact point level switch designed to detect the level of several types of liquids and some fine solids. It provides AC and DC voltage supply to best suit any application. A visual indication is given by a central LED that shows the working status of the unit. The VTK-R is made with 316 S.S. with a glass filled nylon enclosure, it is available in a great variety of process connections, such as threaded, sanitary or flange and can be PTFE coated when necessary for aggressive mediums.
The VTK-DC and VTK-R models also provide a time delay adjustment that enables the user to adjust 1,5,10 or 20 seconds as indicated by the drawing below.
VTK-R Power Supply: 20-60VDC/20-264VACOutput: Relay (SPDT)
DIMENSIONS WIRING DIAGRAM
1 2 3 4 5 6
N
20-264 Vac (50/60Hz)20-60 V dc( I ) < 3 mA
LDRY
WET
1 5 10 20ON
12
ON
12
ON
12
ON
12
ON
1 2
Relay output
Time delay adjustment for VTK-DC & VTK-R models
( 1 ; 5 ; 10 ; 20 seconds )
1
1 2 1 2 1 2 1 2
ON ON ON ON
5 10 20
Different positions for keys # 1 & # 2 delineate time delay adjustment.
2” (
50 m
m)L
3” (
76 m
m)
3/4” or 1”BSP ou NPT
3 ½” (89 mm)
The MVTK-DC (Mini V-Tork) is the most compact version of the vibrating point level switches that is also designed to detect the level of several types of liquids and some fine solids. The Mini V-Tork DC is available with a DC voltage supply and a transistor output. The electronics are integrated within the 316 S.S. body to best suit any space constraint issues relating to the application. A visual indication is given that shows the working status of the unit. The MVTK-DC can be made with a great variety of process connections, such as threaded, sanitary or flange and can be PTFE coated when necessary for aggressive mediums.
MVTK-DC Power Supply: 20-60VDCOutput: PNP Transistor
DIMENSIONS WIRING DIAGRAM
18 … 60 V DC 18 … 60 V DC
1 12 2
3 3
4 4
1 2
+V PLC 0V
3 2 1
PLC +V 0V
3 2 1
3 1/
8” (
80 m
m)
1 1/6ӯ
2” (
50m
m)
L
Min
i V-To
rk
Sitron-USA, Inc. 21 West Nicholai St. Hicksville, NY 11801 Ph:(516) 935-8001 Fax: (516) 935-6001 e-mail: [email protected] -
All MVTK-DC are NEMA 6 (IP 67) protection class, enabling the switch to be applied in damp, wet or submerged applications.
The MVTK-AC is the AC version of the Mini V-Tork, available with an AC voltage supply direct load switching output (2wire). It is also designed to detect the level of several types of liquids and some fine solids. The electronics are integrated within the 316 S.S. body to best suit any space constraint issues relating to the applications. A visual indication is given that shows the working status of the unit. The MVTK-AC can be made with a great variety of process connections, such as threaded, sanitary or flange and can be PTFE coated when necessary for aggressive mediums.
The MVTK-AC is a 2 wire switch. It is necessary to use an external relay (contactor) in series with the power supply.
MVTK-AC Power Supply: 85-264 VACOutput: Direct Load Switching (2 wire)
DIMENSIONS WIRING DIAGRAM
1 12 2
3 3
4 4
1 2
0V
3 2 1
+V
NC
L1 N0V
3 2 1
+V
NC
L1 N
3 1/
8” (
80 m
m)
1 1/6ӯ
2” (
50m
m)
L
Min
i V-To
rk
SPECIFICATIONSMODELS VTK-DC VTK-R MVTK-DC MVTK-AC
Application
Mediumviscosity
OperatingVoltage
Currentconsumption
Electricalconnection
LoadCurrent
PNP (3 wire)
+/- 3mA +/- 3mA +/- 3mA +/- 3mA
Max.: 10.000cs Max.: 10.000cs Max.: 10.000cs Max.: 10.000cs
--500mA
12mm from the tip 12mm from the tip 12mm from the tip 12mm from the tip
500mA 100mA
PNP (3 wire)Direct Load Switching(2 wire)
Cable gland - ½”NPT conduit entry or M12 connector
Cable gland - ½”NPT conduit entry or M12 connector
Plug DIN 43650 Plug DIN 43650
Relay (SPDT)5A max (250Vac)
20 .. 60 Vdc 20 .. 60 Vdc20 .. 60 Vdc
20 - 264 Vac (50/60Hz)Direct Load
Switching (2 wire)
Level switch for liquids
Level switch for liquids
Level switch for liquids
Level switch for liquids
Output
Switching Point
Repeatability
Time Delay
NEMA 4 (IP 65) NEMA 4 (IP 65) NEMA 6 (IP 67) NEMA 6 (IP 67)
725 PSI (50 Bar) 725 PSI (50 Bar) 725 PSI (50 Bar) 725 PSI (50 Bar)
Accuracy/Stability
0,1%
< 0,5mm
1 to 20 secondsadjustable
1 to 20 secondsadjustable 1 second 1 second
< 0,5mm < 0,5mm < 0,5mm
0,1% 0,1% 0,1%
EnclosureMaterial
Wetted Material
316 Stainless Steel 316 Stainless Steel 316 Stainless Steel
316 Stainless Steel316 Stainless Steel
316 Stainless Steel
Glass fillednylon
Glass fillednylon
Class Protection
ProcessConnection
3/4” to 1 1/2” BSP or NPT, sanitary or flanged connections
3/4” to 1 1/2” BSP or NPT, sanitary or flanged connections
3/4” to 1 1/2” BSP or NPT, sanitary or flanged connections
3/4” to 1 1/2” BSP or NPT, sanitary or flanged connections
OperatingTemperature
Max. Pressure
14 to176º F (-10 to 80ºC)
14 to 176º F (-10 to 80ºC)
14 to 248º F (-10 to 120ºC)
14 to 248º F (-10 to 120ºC)
12
3
4
12
3
4+
_ OUT
PLC
ModeDRY
LED
DRY
WET
WET
11
22
33
44
18 … 60 V dc( IL ) 500 mA Máx
1 5 10 20ON
12
ON
12
ON
12
ON
12
ON
1 2
PLC connection
1 2 3 4 5 6
NNO
20-264 Vac (50/60Hz)20-60 V dc( I ) < 3 mA
C NCL
DRY
WET
1 5 10 20ON
12
ON
12
ON
12
ON
12
ON
1 2
Relay output
12mm from the tip
Sitron-USA, Inc. 21 West Nicholai St. Hicksville, NY 11801 Ph:(516) 935-8001 Fax: (516) 935-6001 e-mail: [email protected] -
2” (
50 m
m)L
3” (
76 m
m)
3 ½” (89 mm)
2” (
50 m
m)L
3” (
76 m
m)
3 ½” (89 mm)
3 1/
8” (
80 m
m)
1 1/6ӯ
2” (
50m
m)
L
Min
i V-To
rk
3 1/
8” (
80 m
m)
1 1/6ӯ
2” (
50m
m)
L
Min
i V-To
rk
CodeVTK - DCVTK - R
MVTK - DCMVTK - AC
Code123456
CodeBNH0
CodeSL
CodeNA
CodeC MT
CodePTFE
0X
- - - - - -
NOTE: The hygienic fitting is available only with 1"BSP threaded connection.
Flange 2" ANSI, 150lb. 316 S.S.
Supply voltage 85 - 264 VAC (2 wire) - Direct Load Switching
POINT LEVEL DETECTION - VIBRATING TUNING FORK ORDERING INFORMATION
Supply voltage 20 - 60 VDC / 20 - 264 VAC / 1 relay SPDT 250 VAC - 5A max.Supply voltage 20 - 60 VDC
2" Tri-Clamp
3/4" Thread
Type of threadBSP
Hallar / Tefzel
EnclosureGlass filled nylon
Insertion length
NPT
Specifications
Process Connection
Other - Specify
Supply voltage 20 - 60 VDC 3 wire <PLC>
1" Thread1 1/2" Tri-Clamp
Hygienic Fitting with Coupling (See Note)
Other - Specify
L=3 1/8" (80mm) - Standard
Not a thread
NoneOther - Specify
Aluminum die cast
Coating
Electrical ConnectionCable gland with 1/2"NPT conduit entryM12 connector1/2" NPT conduit entry
