ABB 266CSH - Operating Limits 266 CSx

88 266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER | OI/266CXX/MODBUS-EN REV. A
… 13 Specification
… Operating limits 266CRx
The table below contains the specifications for diaphragm seal
filling fluids when used in transmitters with (a) diaphragm
seal(s).
Filling fluid
(application)
Process temperature and pressure limits
T
max
°C (°F)
@ Pabs
> than
P
min
mbar abs
(mm Hg)
T
max
°C (°F)
@ P
min
T
min
°C (°F)
Silicone oil DC 200
10 cSt
250 (480)
@ 385 mbar
0.7
(0.5)
130
(266)
Æ40
(Æ40)
Silicone oil Baysilone PD5
5 cSt
250 (480)
@ 900 mbar
0.7
(0.5)
45
(123)
Æ85
(Æ121)
Fluorocarbon Galden G5™
(oxygen applications)
160 (320)
@ 1 bar
2.1
(1.52)
60
(140)
Æ20
(Æ4)
Silicone oil (high-
temperature applications)
375 (707)
@ 1 bar
0.7
(0.5)
220
(328)
Æ10
(14)
Mineral oil Esso Marcol 122™
(food and beverage, sanitary
applications) with FDA
approval
250 (480)
@ 630 mbar
0.7
(0.5)
110
(230)
Æ6
(21)
Flushing ring gasket
material
Process limits
Pressure (max.) Temperature P x T
Garlock® 6.9 MPa, 69 bar,
1000 psi
Æ73 and 204 °C
(Æ100 and 400 °F)
250000
(°F x psi)
Graphite 2.5 MPa, 25 bar,
362 psi
Æ100 and 380 °C
(Æ148 and 716 °F)
PTFE 6 MPa, 60 bar,
870 psi
Æ100 and 250 °C
(Æ148 and 482 °F)
Operating limits 266CSx
Pressure limits
Gauge pressure limits
The transmitter models 266CSX can operate without damage
within the following overpressure limits:
Sensors Filling fluid Gauge pressure limits
A Silicone oil 0.5 kPa abs., 5 mbar abs., 0.07 psia
and 0.6 MPa, 6 bar, 87 psi
or 2 MPa, 20 bar, 290 psi
depending on code variant selected*
A Fluorocarbon
(Galden)
17.5 kPa abs., 175 mbar abs., 2.5 psia
and 0.6 MPa, 6 bar, 87 psi
or 2 MPa, 20 bar, 290 psi
depending on code variant selected*
C to N Silicone oil 0.5 kPa abs., 5 mbar abs., 0.07 psia
and 2 MPa, 20 bar, 290 psi
or 10 MPa, 100 bar, 1450 psi
or 41 MPa, 410 bar, 5,945 psi
depending on code variant selected*
C to N Fluorocarbon
(Galden)
17.5 kPa abs., 175 mbar abs., 2.5 psia
and 2 MPa, 20 bar, 290 psi
or 10 MPa, 100 bar, 1450 psi
or 41 MPa, 410 bar, 5,945 psi
depending on code variant selected*
* 1 MPa, 10 bar, 145 psi for Kynar-PVDF