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266MRT, 266GRT and 266ART Pressure transmitters with seals

266MRT, 266GRT and 266ART Pressure transmitters with seals
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266MRT, 266GRT and 266ART Pressure transmitters with seals - 1

ABB MEASUREMENT & ANALY TICS | DATA SHEET 266MRT, 266GRT and 266ART Pressure transmitters with seals

266MRT, 266GRT and 266ART Pressure transmitters with seals - 2

Measurement made easy Engineered solutions for all applications Base accuracy • from 0.04 % of calibrated span Reliable sensing system coupled with very latest digital technologies • provides large turn down ratio up to 60:1 Comprehensive sensor choice • optimize in-use total performance and stability Flexible configuration facilities • provided locally via local LCD keypad TTG (Through-The-Glass) keypad technology • allows quick and easy local configuration without opening the cover, even in explosion proof environments IEC 61508 certification • version for SIL2 (1oo1) and SIL3 (1oo2)...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 3

— General description Models detailed in this data sheet apply for those transmitters which include one or two remote seal(s) connected via a capillary to the transmitter sensor. Depending on the selected ordering code the following models are available: a) model 266MRT which allows a differential measurement using either - two remote seals of same type and size or - one direct mount seal on positive side and one remote seal on negative side, of same type and size or - one remote seal on positive and a standard threaded connection direct 1/4 in – 18 NPT on flange or 1/2 in – 14 NPT through...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 4

— Seal system selection criteria Application of an S26 system in direct mount or remote seal configuration to 2600T transmitters affects performances of original devices. Effects are evident in: • Accuracy • Temperature effects • Dynamic response Accuracy is only marginally affected when seal diaphragm stiffness is relevant compared with sensor stiffness. This is the only characteristic of the S26 system which has role on accuracy performance. High stiffness of diaphragm associated with low URL might produce increased errors of linearity, hysteresis, and long term stability; when diaphragm...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 5

S The following table shows the types of seals available as remote. According to the combination SEAL/TRANSMITTER SENSOR the table details the MAXIMUM CAPILLARY LENGTH. The mnemonics will be used as shortest cross references in the following pages of the data sheet. Seal model Seal type Seal diaphragm size (thickness) [flange type] Wafer (ASME and EN standards) Flanged flush diaphragm (ASME and EN standards) S26FA S26FE S26RA S26RE Flanged extended diaphragm (ASME and EN standards) Flanged flush diaphragm (JIS standards) Flanged flush diaphragm (Ring Joint ASME standard) Threaded off-line...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 6

— ...Seal system selection criteria The following table shows the types of seals available as direct mount. According to the combination SEAL/TRANSMITTER SENSOR the table details the compatibility for one direct mount seal construction and the MAXIMUM CAPILLARY LENGTH when a second seal is selected as remote. The mnemonics will be used as shortest cross references in the following pages of the data sheet. Seal model Seal type Seal diaphragm size (thickness) [flange type] One direct mount seal One DM plus one remote seal Flanged flush diaphragm (ASME and EN standards) 1.5 in Flanged flush...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 7

— Specification – functional Range and span limits Sensor Measuring range Code upper limit (URL) Measuring range lower limit (LRL) Minimum measuring span 266ART * Measuring range upper limit (URL) for 266GRT sensor L is 250 kPa, 2500 mbar or 36.26 psi ** Measuring span limit for 266GRT sensor L is 4.17 kPa, 41.67 mbar or 0.60 psi Span limits Maximum span = URL IT IS RECOMMENDED TO SELECT THE TRANSMITTER SENSOR CODE PROVIDING THE TURNDOWN VALUE AS LOWEST AS POSSIBLE TO OPTIMIZE PERFORMANCE CHARACTERISTICS. Zero suppression and elevation Zero and span can be adjusted to any value within the...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 8

— Specification – operative limits Pressure limits Overpressure limits Model 266MRT Filling fluid Overpressure limits 0.07 kPa abs., 0.7 mbar abs., 0.5 mmHg and 16 MPa, 160 bar, 2.320 psi, or 25 MPa, 250 bar, 3.625 psi, or 41 MPa, 410 bar, 5.945 psi depending on code variant selected 17.5 kPa abs., 175 mbar abs., 131 mmHg and 16 MPa, 160 bar, 2.320 psi, or Fluorocarbon 25 MPa, 250 bar, 3.625 psi, or (Galden) 41 MPa, 410 bar, 5.945 psi depending on code variant selected Filling fluid Overpressure limits Fluorocarbon 0.135 kPa abs., 1.35 mbar abs., 1 mmHg (Galden) and 3 MPa, 30 bar, 435 psi...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 9

Temperature limits °C ( °F) Ambient is the operating temperature Model 266MRT Ambient temperature limits Fluorocarbon (Galden) for sensors C to R Ambient temperature limits Inert (Galden) for sensor Ambient temperature limits LCD display may be affected in visibility below -20°C (-4°F) or above +70°C (+185°F). Transmitters with ambient temperature limit of -50°C (-58° F) are available through special option. IMPORTANT For Hazardous Atmosphere applications see the temperature range specified on the certificate/approval relevant to the aimed type of protection Process Models 266MRT (side...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 10

— ...Specification – operative limits Process - seal Refer to the following FILL FLUID CHARACTERISTICS table detailing characteristics of fill fluids when used in transmitters with seal(s) and further limitation for specific models and/or variants. Fill fluid (application) Process temperature and pressure limits Tmax °C (°F) @ Pabs > of Pmin mbar abs (mmHg) Specifications @ 25 °C (77°F) Specific gravity (kg/dm3) Silicone oil for high temperature (for DIRECT MOUNT SEAL) Vegetable oil Neobee M-20 (food - sanitary) FDA approved Mineral oil Esso Marcol 152 (food - sanitary) FDA approved Inert...

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266MRT, 266GRT and 266ART Pressure transmitters with seals - 11

Environmental limits Electromagnetic compatibility (EMC) Comply with 2014/30/UE to standards EN 61326-1:2013. For IEC 61508 SIL certified transmitter to EN 61326-3-1:2008. For transmitter with option “YE” to NAMUR NE 021 (2004). Surge immunity level (with surge protector): 4 kV (according to IEC 61000-4–5 EN 61000–4–5) Pressure equipment directive (PED) Comply with 2014/68/UE to standards ANSI/ISA 61010-1:2012 Category III Module H for PS ≥ than 20 MPa, 200 bar Sound Engineering Practice (SEP) for PS < 20 MPa, 200 bar Humidity Relative humidity: up to 100 % Condensing, icing: admissible...

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