SI-3151LT Pressure Level Transmitter-Flange Mounting
SI-3151LT Pressure Level Transmitter-Flange Mounting
SI-3151LT Pressure Level Transmitter-Flange Mounting

Pressure level transmitters designed to ensure accurate measurement of liquid levels in a variety of tank environments. The Rosemount 3051L Level Transmitter manufactured by Emerson has become the ideal instrument for open or closed tank applications. Our SI-3151LT Pressure Level Transmitter was built using this as a prototype.


Features a flange-mounted diaphragm designed to easily handle varying hydrostatic pressures and temperature changes. Whether used in vessels or open tanks, our pressure level transmitters deliver unmatched reliability.

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Features

The single flange liquid level gauge is an extension and development of pressure transmitter technology. According to the principle that the pressure generated by liquids with different specific gravity at different heights is linearly related, it realizes the volume, liquid height, Accurate measurement and transfer of weight.

  • The “dynamic profile” remote transmission diaphragm structure is adopted, the diaphragm will not be damaged after overloading, and the accuracy will not change after long-term work.
  • The filling system with full fusion welding and rigid sealing structure is used to eliminate the occurrence of oil leakage.
  • The novel design of the capillary combined parts ensures the reliable protection of the capillary and is not easy to break when used on site.
  • Remote transmission devices with various varieties, shapes and sizes, as well as a variety of filling fluids can meet the measurement needs of various occasions.
  • Various products for special needs can be provided, including remote pressure transmitters for high temperature, high vacuum, fast response and unequal length capillary (length ≤ 3 meters).
  • Easy to adjust: The two potentiometers of zero position and range can move the zero point or change the range arbitrarily within the effective range of liquid level detection. The two adjustments do not affect each other.
  • Wide range of uses; suitable for liquid level measurement of high temperature, high pressure, strong corrosion and other media.
    The measuring range is large and not limited by the height of the storage tank.
  • With intrinsically safe explosion-proof and isolated explosion-proof capabilities, it can be used in various dangerous places.
    With anti-blocking design, it can realize the measurement of the liquid level of paste medium.
  • Exquisite and unique zero point, full scale, and non-linear compensation. Guarantee the accuracy of the instrument within the range of operating conditions and good long-term stability.
Specifications
Measuring range 4.0Kpa-10.0MPa
Turndown ratio 50:01:00
Power supply 10.5V~45V d.c. (Intrinsically safe safety barrier power supply ≤ 30Vd.c.)
Output 4mA~20mA d.c. and HART communication
Ambient temperature -40℃~85℃
Medium temperature -40~304℃ (customized according to actual temperature)
Accuracy 0.5% (capacitive), 0.2 (monocrystalline silicon)
Temperature drift ≤ (0.08r+0.1)% (-10℃~60℃)
≤ (0.1+0.15)% /10℃ (-40℃~-10℃; 60-85℃)
Long-term drift ≤ 0.15r% / 5 years
Enclosure rating IP67
Explosion-proof grade EX iaⅡCT6 or EX dⅡCT6
Anti-corrosion Select the corresponding measuring part material according to different media
Measurement object Viscous, warm liquid
Installation method Flange flat membrane type, flange plug-in type
Diaphragm material 316L, Hastelloy C-276, Monel, Tantalum, Gold Plated, 316L+PTFE
Flange material 304, 316L
Application Guide
Model Transmitter type      
SI-3151LT Pressure Level Transmitter Flange liquid level transmitter      
Code Scale range      
4 0-4.040kPa(0-4004000mmH2O)      
5 0-20200kPa(0-220mH2O)      
6 0-70700kPa(0-770mH2O)      
7 0-2102100kPa(0-21210mH2O)      
8 customize      
Code Output form      
E Linear output 4-20mAdc      
SF Linear output 4-20mAdc +HART signal      
F MODBUS-485 signal      
Code Flange standard (high pressure side flange)      
A ANSI American Standard (HG20615)      
D DIN European Standard (HG20592)      
Code Process connection size      
ANSI American Standard (HG20615) DIN European Standard (HG20592)    
25 1” DN25    
40 1.5” DN40    
50 2” DN50    
80 3” DN80    
0 4” DN100    
Code Process connection pressure rating      
ANSI American Standard (HG20615) DIN European Standard (HG20592)    
A 150LB PN16/25    
B 300LB PN40    
C 600LB PN64    
D 900LB PN100    
Code High pressure side diaphragm      
A 316 stainless steel      
B Hastelloy C      
C Monel      
D Tantalum      
E Titanium      
F Special Requirements      
Code High pressure side insert tube length High pressure side insert cylinder material    
A 0 mm None    
B 50 mm 316L Stainless steel    
C 150 mm 316L Stainless steel    
D 200 mm 316L Stainless steel    
Code High pressure side filling fluid      
D General silicone oil  -40~104℃)      
F High temperature silicone oil   -40~304℃)      
S Inert liquid  -40~204℃)      
Low pressure side structural material Flange (joint) Exhaust/drain valve Isolation diaphragm Sensor filling fluid
22 316 Stainless steel 316 Stainless steel 316 Stainless steel Silicone oil
23 316 Stainless steel 316 Stainless steel Hastelloy C Silicone oil
24 316 Stainless steel 316 Stainless steel Monel Silicone oil
25 316 Stainless steel 316 Stainless steel Tantalum Silicone oil
33 Hastelloy C Hastelloy C Hastelloy C  Silicone oil
35 Hastelloy C Hastelloy C Tantalum  Silicone oil
44 Monel Monel Monel  Silicone oil
S2 A remote transmission device (with a remote transmission device on the low-voltage side)      
Code Shell material Conduit inlet dimensions    
A Low copper aluminum alloy polyurethane coating M20×1.5    
B Low copper aluminum alloy polyurethane coating 1/2-14 NPT    
C Stainless steel M20×1.5    
D Stainless steel 1/2-14 NPT    
Code Optional parts      
M1 0100%  Linear indicator head      
M4 LCD multi – power digital display head      
D1 Side discharge valve at the top (only for the low pressure side of the low pressure side without remote transmission)      
D2 Side discharge valve at the top (only for the low pressure side of the low pressure side without remote transmission)      
Da Flameproof  ExdIIBT5Gb;(explosion-proof certificate no. : CE16.1163)      
Fa Intrinsically safe ExiaIICT4 / T5 / T6Ga;(explosion-proof certificate no. : CE15.2354X)      
CX With corresponding 316 flushing ring      

 

Additional Information
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In summary, Humlex is a professional manufacturer of Pressure Level Transmitters, providing you with reliable and precise solutions for monitoring liquid levels in various tank and vessel applications. With years of experience and a commitment to quality, our products are designed to deliver accurate results and ensure smooth operations for your industry needs.

Contact us today to learn more about our Pressure Level Transmitters and experience the Humlex difference. Our dedicated team is ready to assist you in selecting the best instrument for your application. Trust Humlex for all your pressure level measurement needs and elevate your operations to new heights.

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    Plot No. GH-10B, Sector Techzone-IV,
    Greater Noida West, Uttar Pradesh - 201318, India
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  • Phone: +91-8448655453 / +91-8756814447 / +91-8542814447