Model 1151/3051LT Flange Pressure Transmitter – leelavatiautomation.com
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Model 1151/3051LT Flange Pressure Transmitter

Model 1151/3051LT Flange Pressure Transmitter

STONG M&C´s 3051(&1151) LT flange pressure transmitter provides a kind of reliable measuring way. It is used for measuring pressure (or differential pressure), level, density of liquid, gas or steam and converts the value of above 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. 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
The maximum positive shift is 500% of the minimum adjusting span; the maximum negative shift is 600% of the 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
Flange Pressure Transmitter
Measuring Range
3
0-1.3~7.5KPa
4
0-4-40KPa
5
0-40~200KPa
6
0-0.16KPa~1MPa
Signal Output
E
4-20mA
S
Smart 4-20mA+HART Protocol
Size of Flange(Flat and Insert), Material of Diaphragm on Flange
Nominal Diameter(mm)
Length of Insert Tube (mm)
Material of Diaphragm on Flange
A0
3〞80
Flat Flange
316LSST
A2
3〞80
50
316LSST
A4
3〞80
100
316LSST
A6
3〞80
150
316LSST
B0
4〞100
Flat Flange
316LSST
B2
4〞100
50
316LSST
B4
4〞100
100
316LSST
B6
4〞100
150
316LSST
C0
3〞80
Flat Flange
Haste alloy C-276
C2
3〞80
50
Haste alloy C-276
C4
3〞80
100
Haste alloy C-276
C6
3〞80
150
Haste alloy C-276
D0
4〞100
Flat Flange
Haste alloy C-276
D2
4〞100
50
Haste alloy C-276
D4
4〞100
100
Haste alloy C-276
D6
4〞100
150
Haste alloy C-276
E0
3〞80
Flat Flange
Tantalum
F0
4〞100
Flat Flange
Tantalum
Specification of Flange
A
3〞150lb
B
4〞150lb
C
3〞300lb
D
4〞300lb
Material
Flange
/Adaptor
Drains/Vents
Diagrams
Fill Fluid
22
Stainless Steel 316
Stainless Steel 316
Stainless Steel 316
Silicon Oil
23
Stainless Steel 316
Stainless Steel 316
Haste alloy
24
Stainless Steel 316
Stainless Steel 316
Monel
25
Stainless Steel 316
Stainless Steel 316
Tantalum
33
Haste alloy
Haste alloy
Haste alloy
35
Haste alloy
Haste alloy
Tantalum
Optional
M1
0-100% Indicator Meter
M3
31/2 LCD Meter
M4
Smart Meter

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