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Torque Tube, Displacement Type Level Transmitter
Model Name
SDT-420 Series
Series
Level Transmitter
Data
Catalog-Seojin instech-Torque tube, displacement type level transmitter (SDT-420)
Manufacturer information
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SEOJIN INSTECH

Level sensor, Switch, Siemens, Transmitter, Ultrasonic, Radar, Flowmeter, Water level gauge, Orifice

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Manufacturer
SEOJIN INSTECH
Product Type
Machine
Brand
-
SKU
131511
Product Name
Torque Tube, Displacement Type Level Transmitter
Model Name
SDT-420 Series
Size
-
Weight
-
Product Details
TYPE & MODEL Torque Tube, Displacement Type Level Transmitter
PRINCIPLE

The change of power applied to the displacer according to the change of the fluid level is generated in the form of a twist stress to the Torque Tube, and the twist angle is changed into a straight movement through a complicated mechanism conveyed to the road cell in the form of a pressure change.

The errors entailing the temperature change is fixed with a supplementary circuit, and put out in precise DC 4∼20mA of ± 0.2%.

Without the need to go on-site, remote device control is possible through a Two-wire type HART communication signal, and various measurement information and history information is logged through the HART Protocol, enabling the device to be used for the Process Control. It is the first intelligent transmitter in the nation, which was born through the joint research with the Korea Hydraulic Nuclear Power Co., Ltd.

Also, it supports a communication system that realizes the transmitter remote control system(FIMS)'s asset management solution(AMS) selected by Korea Hydro and Nuclear Power, and the communication.

Patent No.: 0361505

RANGE TEMPERATURE PRESSURE
  • 350∼2000mm
  • Max. 450℃
  • Max. 200㎏/㎠ (@25℃)
FEATURES OUTPUT
  • Korea Hydro and Nuclear Power's joint research development task
  • Max. pressure 100㎏/㎠
  • Max. temperature 450℃
  • Zero point/automatic adjustment of the measured scope
  • The measurement scope's setting change function
  • Precision of ± 0.2% F.S
  • Continuous self-diagnosis function
  • Convenient level detection Scope change
  • Remote control by two-wire type SMART + HART communication Information transmission and reception, Data Logging, Gauge history management
  • FIMS - AMS communication support (Emerson Co.)
  • Essential safety explosion proof(basic)/Pressure-endurable and explosion proof(Option) - (Ex ia ⅡC T4)/(Ex d ⅡB T4)

 

  • In power plant facilities, it is generally used partially with SDG-2000 and in HP,IP,LP Drums(refer to page 13)
  • Korea Hydro and Nuclear Power quality grade : S Class
  • The Chamber can be manufactured and provided based on the power technology standard and pressurizer manufacturing technology standard(KEPIC)
  • 4∼20mA with HART (Ver. 6.X)
POWER SUPPLY
  • 15∼30V DC HART
APPLICATION
  • Power plant HP, IP, LP Drum level control
  • Condensed water storage tank, heat exchanger, Heater
  • High temperature/pressure type Boiler tank
  • chemical distillation tank
  • Fuel/ oil tank
  • Others
REMARK Mat'l : 304/316SS
INDUSTRY Industrial Plant, Petrochemistry, Nuclear/Power Generation Plant

MODEL: SDT-420-31-A-1-A-1-A-1-A-1-A, SDT-420-31-A-1-A-1-A-2-A-1-A, SDT-420-31-A-1-A-1-A-3-A-1-A

SEOJIN INSTECH
Level sensor, Switch, Siemens, Transmitter, Ultrasonic, Radar, Flowmeter, Water level gauge, Orifice
Will Measure the 21st Century with Creativity and innovation We have the technology to make advances into the future We are also committed to being leaders in the 21st century and achieving the ultimate in customer satisfaction Our success in achieving a solid business foundation for our business areas over the last 30 years is due to the constant support and encouragement of our valued customers. We were the first company in the country to have attained ISO 9001 and KEPIC (Korea Electric Power Industry Code) certifications, specializing in the manufacturing of a broad range of Level Sensors and Flow Meters intended for the fields of chemical facilities, food & animal feed, ceramics and mining, paper manufacturing, textile, steel and metal products, precision machined products industry, wastewater and sewage treatment facilities, construction facilities, hydroelectric, steam-powered, nuclear generating facilities, and aerospace. Our broad range of manufacturing services, combined with SEJIN rich expertise and technical know-how, was enabled us to secure the core technologies in the knowledge-based measuring instrument industry that uses digital HART (Smart) intelligent information transmission technology. We, as a general measuring instrument manufacturer, aim to become the world`s top manufacturer within some years. We also set ‘Change’, ‘innovation’ and ‘Reliability’ as our priorities to meet changing clients needs to better adjust to developments occurring during this first half of the century.
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