1.General Introduction

ABB 266GRT gauge pressure transmitter combines with S26 direct or remote seal for gauge pressure measurement, measure range from -40Kpa to 60Mpa, maximum proof pressure is up to 90Mpa and maximum turn down ratio up to 60:1, standard accuracy is 0.04%, meets SIL2,SIL3 safety applications as per IEC 61508 standard.

 

Depending on actual application, 266GRT allows a gauge pressure measurement using one remote seal directly mounted with a short capillary connecting the integral seal to the transmitter sensor. The S26 Series Seal System is a protective device used to isolate 266GRT gauge pressure transmitter from the process fluid, provides a flexible diaphragm seal between the process fluid and a liquid filled capillary tube connected to the body of the transmitter. The diaphragm isolates the process fluid while the filled capillary tube hydraulically transmits the process pressure to the transmitter sensor. The capillary of remote seal is corrosion-resistant with robust construction in stainless steel with spiral armor protection, also PVC jacket; PVC protection is always recommended except for high temperature application, where stainless steel armor is suggested. The all welded construction assures reliable operation over the widest range of operating temperature and under vacuum conditions.

2.Measuring Span & Range Limits

Sensor Code

Lower Range Limit (LRL)

Upper Range Limit (URL)

Standard TD Ratio

Max. TD Ratio

Max. Static Pressure

C

-6Kpa, -60mbar, -24inH2O

6Kpa, 60mbar, 24inH2O

5:1

10:1

1Mpa, 10bar, 145psi

F

-40Kpa, -400mbar, -160inH2O

40Kpa, 400mbar, 160inH2O

10:1

60:1

1Mpa, 10bar, 145psi

L

0.07Kpa, 0.7mbar, -0.5mmHg

250Kpa, 2500mbar, 1000inH2O

10:1

60:1

3Mpa, 30bar, 435psi

D

0.07Kpa, 0.7mbar, -0.5mmHg

1000Kpa, 10bar, 145psi

10:1

60:1

6Mpa, 60bar, 870psi

U

0.07Kpa, 0.7mbar, -0.5mmHg

3000Kpa, 30bar, 450psi

10:1

60:1

6Mpa, 60bar, 870psi

R

0.07Kpa, 0.7mbar, -0.5mmHg

10000Kpa, 100bar, 1450psi

10:1

60:1

30Mpa, 300bar, 5945psi

V

0.07Kpa, 0.7mbar, -0.5mmHg

60000Kpa, 600bar, 8700psi

10:1

60:1

90Mpa, 900bar, 13050psi

3.Basic Code Selection of 266GRT Gauge Pressure Transmitter

Main Code

Suffix Codes

Description

266GRT






Gauge pressure   transmitter with remote seal, base accuracy 0.04 %

SENSOR - Span Limits

C





0.6 and 6 kPa   6 and 60 mbar 2.41 and 24 in. H2O

F





0.67 and 40   kPa 6.7 and 400 mbar 2.67 and 160 in. H2O

L





4.17 and 250   kPa 41.7 and 2500 mbar 16.7 and 1000 in. H2O

D





16.7 and 1000   kPa 0.167 and 10 bar 2.42 and 145 psi

U





50 and 3000   kPa 0.5 and 30 bar 7.25 and 435 psi

R





167 and 10000   kPa 1.67 and 100 bar 24.2 and 1450 psi

V





1000 and 60000   kPa 10 and 600 bar 145 and 8700 psi

Diaphragm Material /   Fill Fluid

R




Diaphragm seal   mounted Silicone oil (specify diaphragm seal separately)

2




Diaphragm seal   mounted Fluorocarbon - Galden (specify diaphragm seal separately)

N




Diaphragm seal   mounted White oil (specify diaphragm seal separately)

Process Connection   Material / Type

R



Diaphragm seal   (except in the case of button diaphragm seals, specify diaphragm seal   separately)


G



Button   diaphragm seal (specify button diaphragm seal separately)


M



Direct mount   diaphragm seal (one direct mount seal to be quoted)

Housing Material /   Electrical Connection


A


Aluminium   alloy (Barrel type) 1/2-14 NPT



B


Aluminium   alloy (Barrel type) M20 x 1.5



E


Aluminium   alloy (Barrel type) Harting Han plug connector (for standard applications)



G


Aluminium   alloy (Barrel type) Fieldbus plug connector (for standard applications)



S


Stainless   steel (Barrel type) 1/2-14 NPT



T


Stainless   steel (Barrel type) M20 x 1.5



J


Aluminium   alloy (DIN type) M20 x 1.5



K


Aluminium   alloy (DIN type) Harting Han plug connector (for standard applications)



W


Aluminium   alloy (DIN type) Fieldbus plug connector (for standard applications)



Z


Stainless   steel (Barrel type) Fieldbus plug connector (for standard applications)

Output



1

HART digital   communication and 4 … 20 mA




2

Profibus PA




3

Foundation fieldbus




8

HART digital   communication and 4 … 20 mA, SIL2 and SIL3-certified in acc. with IEC 61508

Optional Codes

/Optional codes

4.Basic Code Selection of S26RR Rotating Flange Diaphragm Seals (flush) Ring Joint to ASME B16.5

S26RR











Rotating flange   diaphragm seal (flush) Ring Joint to ASME B16.5

Transmitter Side of Connection

H










High pressure   side

L










Low pressure   side

Mounting Flange Rating   / Size

D1









ASME CL150, 1   1/2 inch

D2









ASME CL300, 1   1/2 inch

D3









ASME CL600, 1   1/2 inch

D5









ASME CL900-1500,   1 1/2 inch

D6









ASME CL2500, 1   1/2 inch

E1









ASME CL150, 2   inch

E2









ASME CL300, 2   inch

E3









ASME CL600, 2   inch

E5









ASME CL900-1500,   2 inch

E6









ASME CL2500, 2   inch

G1









ASME CL150, 3   inch

G2









ASME CL300, 3   inch

G3









ASME CL600, 3   inch

G4









ASME CL900, 3   inch

G5









ASME CL1500, 3   inch

G6









ASME CL2500, 3   inch

Mounting Flange Material

C








Carbon steel


S








ANSI 316 SS

Extensions Length and Material


F







Flush

Diaphragm Material



SM






ANSI 316 SS, NACE




HM






Hastelloy C276, NACE




LM






Inconel 625, NACE

Seal Surface Finish




3





Ring   joint

Capillary Protection





A




ANSI 316L SS armor






B




ANSI 316L SS armor with   PVC protective cover






N




Extension tube for   direct mount seal

Capillary Length   m (Feet)






1



Direct-mount   construction







A



1m, 3 feet







B



1.5m, 5 feet







C



2m, 7 feet







D



2.5m, 8 feet







E



3m, 10 feet







F



3.5m, 12 feet







G



4m, 13 feet







H



4.5m, 15 feet







J



5m, 17 feet







K



5.5m, 18 feet







L



6m, 20 feet







M



6.5m, 22 feet







N



7m, 23.5 feet







P



7.5m, 25 feet







Q



8m, 27 feet







R



9m, 30 feet







S



10m, 33 feet







T



12m, 40 feet







U



14m, 47 feet







V



16m, 53 feet

Fill Fluid







S


Silicon oil PMX 200 10   cst (-40 to 250℃, -40 to 480℉)








P


Silicon oil Baysilone   PD5 5 cst (-85 to 250℃, -121 to 480℉)








N


Inert oil Galden G5, oxygen   service








D


Inert oil Halocarbon   4.2 oxygen service








G


Silicon oil for high   temperature (-10 to 375℃, 14 to 707℉)








C


Silicon polymer   syltherm XLT (-100 to 100℃, -148 to 212℉)








W


Mineral oil Esso Marcol   152 (FDA approved)








A


Vegetable oil Neobee   M-20 (FDA approved)








B


Glycerin water 70% (FDA   approved)

Flushing Ring:   Hole and Thread








N

None

Flushing Ring   Material









N

None

Flushing Ring:   Plug and Gasket










N

No plug, no gasket

Optional Codes

/Optional codes