| GENERAL INFORMATION |
| Series / Product | Series
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| Brand | ABB
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| Origin | Switzerland
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| Series | ABB – 266MST
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| PRESSURE SENSOR SPECIAL FEATURES |
| Product Type | Pressure Transmitter
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| Technology (Measuring Principle) | N/A
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| Varieties | Differential, Explosion Proof (EX), Flush Diaphragm, High Accuracy
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| MEASURING RANGES |
| Reference Pressure | Differential
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| Pressure Unit | [mbar], [bar], [inH2O], [psi], [kPa]
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| Pressure Range | -1 … 1 kPa to -10000 … 10000 kPa / -10 … 10 mbar to -100 … 100 bar
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| Pressure Range [bar] [Min] | 0
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| Pressure Range [bar] [Max] | 100
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| Pressure Range [psi] [Min] | 0
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| Pressure Range [psi] [Max] | 1450.4
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| Static Pressure [bar] [Max] | N/A
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| Overpressure [bar] [Max] | N/A
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| Positive Overpressure [bar] | N/A
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| Negative Overpressure [bar] | N/A
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| Burst Pressure [bar] [Min] | N/A
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| PRESSURE SENSOR PERFORMANCE |
| Accuracy | ≤ ± 0.025 %FS, ≤ ± 0.04 %FS
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| Accuracy Details | 0.04 % of calibrated span (optional, 0.025 %)
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| Non-linearity | N/A
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| Non-linearity Details | N/A
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| Long Term Stability | N/A
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| Long Term Stability Details | ■ ± 0.15 % of URL over a period of 10 years (± 0.05 % URL/year) ■ ± 0.3 % of URL over a period of 10 years (± 0.2 % URL/year)
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| TC Sensitivity | Refer to the datasheet
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| TC Zero Point | Refer to the datasheet
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| Adjustable | YES
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| Adjustability Details | Large turn down ratio of up to 100:1
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| Resolution | N/A
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| Sensitivity | N/A
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| Response Time | < 1000 ms, < 150 ms, < 40 ms, < 400 ms
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| Response Time Details | Time constant (63.2 % of total step response): ■ Sensors F to R: 150 ms ■ Sensor C: 400 ms ■ Sensor A: 1000 ms ■ Reaction time for all sensors: 40 ms
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| ELECTRICAL SPECIFICATIONS |
| Output Signal | 4 … 20 mA HART®, FOUNDATION™ Fieldbus, PROFIBUS® PA
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| Output Signal Details | ■ HART digital communication and 4 to 20 mA ■ PROFIBUS PA ■ FOUNDATION Fieldbus ■ HART digital communication and 4 to 20 mA, SIL2 and SIL3 certified to IEC 61508
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| Supply Voltage | N/A
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| Load Resistance | N/A
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| Power Consumption | N/A
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| Short-circuit Protection | N/A
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| Reverse Polarity Protection | YES
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| ENVIROMENTAL CONDITIONS |
| Media Temperature [°C] [Min] | -40
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| Media Temperature [°C] [Max] | +121
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| Ambient Temperature [°C] [Min] | -40
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| Ambient Temperature [°C] [Max] | +85
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| Storage Temperature [°C] [Min] | -50
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| Storage Temperature [°C] [Max] | +85
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| Compensated Temperature [°C] [Min] | N/A
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| Compensated Temperature [°C] [Max] | N/A
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| Ingress Protection | IP65, IP66, IP67, IP68, NEMA 4X
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| Vibration Resistance | Acceleration up to 2 g at frequencies of up to 1000 Hz (according to IEC 60068-2-6). Acceleration limited to 1 g for housing out of stainless steel.
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| Shock Resistance | In accordance with IEC 60068–2–27, Acceleration: 50 g, Duration: 11 ms
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| GENERAL MECHANICAL SPECIFICATIONS |
| Mounting | Threaded – Internal Diaphragm
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| Process Connection Male/Female | Female, Male
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| Process Connection | 1/2"-14 NPT, 1/4"-18 NPT, 7/16"-20 UNF, Flange
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| Process Connection Details | N/A
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| With Damper (Puls-snubber) | NO
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| Process Connection Material | Kynar®, Monel® 400, Stainless steel 1.4404 (316L), Stainless steel 1.4408 (316)
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| Diaphragm / Sensor Material | Hastelloy® C-276 (2.4819), Monel 400® gold-plated, Monel® 400, Stainless steel 1.4435 (316L), Tantalum
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| Filling Fluid | Inert fluid, Silicon oil
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| Seal | N/A
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| Hygienic Version | N/A
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| Electrical Connection | Field housing with cable gland 1/2"-14 NPT, Field housing with cable gland M20x1.5, Fieldbus connector, Harting Han connector
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| Electrical Connection Details | Refer to the datasheet
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| Display | YES
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| Display Details | • With integral LCD display • TTG (Through The Glass) integral digital LCD display
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| Weight | • (without options): Approximately 3.7 kg (8.2 lb); add 1.5 kg (3.3 lb) for stainless steel housing. • Add 650 g (1.5 lb) for packaging
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| TESTS / APPROVALS |
| Scope Approvals | ATEX / Europe, FDA / USA, FM / USA, GOST / Russia, IECEx / Worldwide, NACE / International, NEPSI / China
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| Ship Approvals | ABS / USA, DNV / Germany, DNV-GL / Germany, LR / The UK
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| Explosion Protection | Dust Explosion Protection Through Housing "t", Flameproof Enclosure "d", Intrinsic Safety "i"
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| EX Zone | Refer to the datasheet
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| Other Approvals | RoHS
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| SIL Qualification | SIL 2, SIL 3
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| INDUSTRIES / APPLICATIONS |
| Application | DP closed vessel level measurement, Fuel storage, Laboratory and test, Liquid, steam and gas differential pressure measurement, Oil field equipment, Oil platforms, Oxygen level monitoring in cylinders, Pasty media, Potentially hazardous areas, Pressure monitoring in the hazardous areas, Viscous media
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