266MST is the top performance differential pressure transmitter with “multisensor technology” suitable for measuring liquid, gas or steam flow as well as level, pressure and density in applications with working pressure up to 41Mpa / 5945psi.
The unique combination of several sensor systems in a single device allows simultaneous measurement of differential pressure and absolute pressure. The sensor temperature and the absolute pressure are also used for eliminating environmental effects on the sensor. Long-term stability and proven reliability are the key-factors that make of 266MST the best choice for differential pressure measurement.
In addition to the plug-in terminal block, this transmitter features in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with easy setup procedure really helps users by saving time and lowering maintenance and inventory costs. Moreover, the innovative TTG (Through The Glass) technology allows users to configure the instruments in the field without removing the windowed front cover and consequently to save a lot of time.
The 266MST is certified by TUV NORD for use in safety instrumented systems as per the requirements of IEC61508. The transmitters meet the requirements for SIL2 applications in a single transmitter configuration (1oo1) and for SIL3 applications in a redundant configuration (1oo2).
Sensor code | Upper range limit | Lower range limit | Minimum measuring span |
A | 1 kPa 10 mbar 4 inH20 | -1 kPa -10 mbar -4 inH2O | 0.05 kPa O.5 mbar 0.2 inH20 |
C | 6 kPa 60 mbar 24 inH2O | –6 kPa –60 mbar –24 inH2O | 0.2 kPa 2 mbar 0.8 inH2O |
F | 40kPa 400mbar 160 inH2O | –40 kPa –400 mbar –160 inH2O | 0.4 kPa 4 mbar 1.6 inH2O |
L | 250 kPa 2500mbar 1000 inH2O | –250 kPa –2500mbar –1000 inH2O | 2.5 kPa 25 mbar 10 inH2O |
N | 2000kPa 20bar 290 psi | –2000 kPa –20 bar –290 psi | 20 kPa 0.2 bar 2.9 psi |
R | 10000 kPa 100 bar 1450 psi | –10000kPa –100 bar –1450 psi | 100 kPa 1 bar 14.5 psi |
Item | valve |
Measuring principle | Differential pressure |
Reference Accuracy | 0.04% of calibrated span(optional, 0.025 %) |
Long term stability | 0.15 % of URL |
Process temperature | –40 to 85 °C (–40 to 185 °F) |
Ambient temperature | –40 to 121 °C (–40 to 250 °F) * |
large turn down ratio | up to 100:1 |
Measuring Range Limits | Differential pressure range limits: 0.05 to 10000 kPa; 0.2 in H₂O to 1450 psiMaximum working pressure: Up to 41 MPa / 5945 psi |
Sensor Specifications | Sensor code A: Inert (Galden) fill fluidSensors C, F, L, N, R: Silicone oil fill fluidDiaphragm material: Hastelloy® C - 276, etc. (varies with code) |
Output Signal | 4 - 20 mA, HARTPROFIBUS PA 3.01FOUNDATION Fieldbus ITK 5.1/6.x |
Power Supply | 4 - 20 mA, HART: 10.5-42 V DC, polarity protectedPROFIBUS PA: 9-32 V DC, polarity independent |
Local Operation | LCD with TTG (Through The Glass) technology (operable without opening the housing) |
Certifications & Compliance | SIL2/SIL3 compliant (IEC 61508)PED Category III compliant |
Electrical Connection | Plug - in terminal block1/2–14 NPT, etc. (varies with code) |
Housing Material | AISI 316L SST (Barrel type), etc. (varies with code) |
Packaging: Original cardboard box packaging
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
We can offer rosemount, Endress+Hauser, yokogawa, Siemens, ABB,Fisher,Koso, Samson, Abzil, NELES,UE etc, Brands.
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