Japan, Tokyo Keiso
Tokyo Keiso FST4000 Series Displacement Level Transmitter
Made in Japan
Manufacturer: Tokyo Keiso
Model: FST4000 Series
FST4000 is a torque tube displacement type level indicating transmitter with intelligent data processing function. Through 18 years of field proven experiences accumulated by the existing model FST-3000, FST4000 has intensified its reliability by adding such features as SIL2 compatible functional safety, ATEX flameproof and field bus communication of FOUNDATION Fieldbus. Varieties of materials and wide range of pressure ratings are available to meet various applications such as high pressure and temperature boilers as well as low temperature down to minus 196℃ of liquefied gases.
Specifications
| Detection Method | Torque tube type displacer |
| Liquid density | Level measurement: 0.2 to 1.5g/cm³
Interface measurement: Density difference between 2 liquids is more than 0.1 g/cm³ Density measurement: Min. density span is 0.2 g/cm³ |
| Measuring range | 3000mm max. 300mm min. |
| Temperature range | -196 to +450℃ |
| Pressure class | ASME class 150,300,600,1500 and 2500 |
| Connection size | External chamber type: 1-1/2 or 2 inch flange Internal chamber type: 3 or 4 inch flange |
| Material | Torque tube: SUS316L, NW0276, NCF600
Bonnet: SCPH2, SCS13A, SCS14A, SCS16A, NW0276 Chamber: Carbon steel, SUS304, SUS316, SUS316L, NW0276 Displacer: SUS304, SUS316, SUS316L, NW0276, MONEL Transmitter housing: ADC12 |
| Local indication | LCD display |
| Output / Power supply |
4-20mA DC, 2wire system with HART® Version6 / UB 8 to 40V DC FOUNDATION Fieldbus / 9 to 32V DC |
| Accuracy | ±0.5% F.S. Based on mass conversion correction at factory calibration |
| Protection class | IP67, JIS C 0920 equivalent to IEC 60529 |
| Explosion proof classification |
Flame proof:
TIIS Ex d ⅡC T6…T1 Intrinsically safe: ATEX & IECEx Ex ia ⅡC T6…T1 |
| Option | Functional safety:
SIL2 compatible with IEC 61508 |
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