STONG M&C´s 3051(&1151) LT flange Level transmitter provides a kind of reliable measuring way. It is used for measuring level, density of liquid and converts the value into current signal output or digital protocol output. The pressures are directly applied to the isolating diaphragm that provide isolation and resistance against process fluid corrosion. The relationship between the level and pressure is:
P=0.0098ρL
P=Pressure; ρ(g/cm3)=Density; L=Level
Being microprocessor based, the electronic circuit is extremely versatile and accurate. Combined with the sensor precision, it provides the high accuracy and range ability. Transmitter performance is improved by continuous monitoring of the sensor temperature and corresponding corrections. A local display permits easy reading and writing of data.
The Model 3051 utilizes capacitance sensor technology for pressure measuring. The major components of the Model 3051 are the sensor module and the electronics housing. The sensor module contains the oil filled sensor system (isolating diaphragms, oil fill system, sensor and mounting flange) and the sensor electronics. The sensor electronics are installed within the sensor module and include a temperature sensor (RTD), a memory module, and the capacitance to digital signal converter (C/D converter). The electrical signals from the sensor module are transmitted to the output electronics in the electronics housing. The electronics housing contains the output electronics board (microprocessor, memory module, digital to analog signal converter or D/A converter), the local zero and span buttons, and the terminal block.
For the Model 3051LT design pressure is applied to the isolating diaphragm which is welded on the flange. Flat flange and insert flange are available. The sizes of the flange can be customized according to use´s requirements. The material of diaphragm can be optional for different kinds of corrosive liquid as well.
WIRING DIAGRAMS
Connect the bench equipment as shown in Figure, and turn on the HART-based communicator by pressing the ON/OFF key. The communicator will search for a HART-compatible device and will indicate when the connection is made. If the communicator fails to connect, it will indicate that no device was found.
TECHNICAL SPECIFICATIONS
Measuring object: liquid, gas and steam
Measuring range: 0~0.1kPa to 0~40MPa
Output signal: 4~20mA DC+HART protocol
Power supply: 12~45V DC, generally 24V DC
Range and null point: adjustable
Humidity: relative humidity 5~95%
Precision: 0.25%FS
Converter housing: Low copper cast aluminum alloy with Polyurethane paint
Fill Fluid: Silicon / Fluorine Oil
Process Connections: 1/2NPT, 1/4NPT
Protection Class: IP65
Maximum positive shift is 500% of minimum adjusting span; maximum negative shift is 600% of minimum adjusting span.
Mounting : Flange
Material:
Flange : Stainless Steel
Drains/Vents: Stainless Steel 316/Monel / Haste alloy
Diagrams: Stainless Steel 316/Monel /Haste alloy C/ Tantalum
Wetted O-Ring: Viton/ Buna-N
Seal O-Ring: Viton/ Buna-N
Bolts & Nuts: Carton Steel/Stainless Steel316
POWER SUPPLY LOAD LIMITATIONS, 4–20 MA TRANSMITTERS
ORDERING CODES
1151/3051LT
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Flange Level Transmitter
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Measuring Range
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3
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0-1.3~7.5KPa
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4
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0-4-40KPa
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5
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0-40~200KPa
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6
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0-0.16KPa~1MPa
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Signal Output
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E
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4-20mA
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S
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Smart 4-20mA+HART Protocol
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Size of Flange(Flat and Insert), Material of Diaphragm on Flange
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Nominal Diameter(mm)
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Length of Insert Tube (mm)
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Material of Diaphragm on Flange
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A0
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3〞80
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Flat Flange
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316LSST
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A2
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3〞80
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50
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316LSST
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A4
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3〞80
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100
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316LSST
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A6
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3〞80
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150
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316LSST
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B0
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4〞100
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Flat Flange
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316LSST
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B2
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4〞100
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50
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316LSST
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B4
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4〞100
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100
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316LSST
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B6
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4〞100
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150
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316LSST
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C0
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3〞80
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Flat Flange
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Haste alloy C-276
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C2
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3〞80
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50
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Haste alloy C-276
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C4
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3〞80
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100
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Haste alloy C-276
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C6
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3〞80
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150
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Haste alloy C-276
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D0
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4〞100
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Flat Flange
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Haste alloy C-276
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D2
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4〞100
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50
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Haste alloy C-276
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D4
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4〞100
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100
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Haste alloy C-276
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D6
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4〞100
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150
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Haste alloy C-276
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E0
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3〞80
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Flat Flange
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Tantalum
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F0
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4〞100
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Flat Flange
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Tantalum
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Specification of Flange
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A
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3〞150lb
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B
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4〞150lb
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C
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3〞300lb
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D
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4〞300lb
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Material
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Flange
/Adaptor
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Drains/Vents
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Diagrams
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Fill Fluid
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22
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Stainless Steel 316
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Stainless Steel 316
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Stainless Steel 316
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Silicon Oil
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23
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Stainless Steel 316
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Stainless Steel 316
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Haste alloy
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24
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Stainless Steel 316
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Stainless Steel 316
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Monel
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25
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Stainless Steel 316
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Stainless Steel 316
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Tantalum
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33
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Haste alloy
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Haste alloy
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Haste alloy
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35
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Haste alloy
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Haste alloy
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Tantalum
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Optional
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M1
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0-100% Indicator Meter
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M3
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31/2 LCD Meter
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M4
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Smart Meter
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