266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER | OI/266CXX/MODBUS-EN REV. A 89
Static pressure limits
The transmitter models 266CSX can operate within the
specifications with the following limits:
Sensors Filling fluid Static pressure limits
A Silicone oil 3.5 kPa abs., 35 mbar abs., 0.5 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 3.5 kPa abs., 35 mbar abs., 0.5 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*
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
Test pressure
The transmitters can withstand a pressure test with the
following line pressure without leaking:
Model Test pressure
266CSX 1.5 x nominal pressure (static pressure
limit) simultaneously on both sides*
* Meets hydrostatic test requirements of ANSI/ISA-S 82.03.
Temperature limits °C (°F)
Environment
This is the operating temperature.
All models Ambient temperature limits
Silicone oil Æ40 and 85 °C (Æ40 and 185 °F)
Fluorocarbon (Galden™) Æ40 and 85 °C (Æ40 and 185 °F)
All models Ambient temperature limits
Integrated digital display (LCD)* Æ40 and 85 °C (Æ40 and 185 °F)
Viton™ gasket Æ20 and 85 °C (Æ4 and 185 °F)
PTFE gasket Æ20 and 85 °C (Æ4 and 185 °F)
* If may no longer be possible to read the digital display (LCD) clearly below
Æ20 °C (Æ4 °F) and above 70 °C (158 °F).
Note
For applications in potentially explosive environments, the
temperature specified on the certificate / approval which
depends upon the type of protection sought shall apply.
Process
All models Process temperature limits
Silicone oil Æ40 and 121 °C (Æ40 and 250 °F)*
Fluorocarbon (Galden™) Æ40 and 121 °C (Æ40 and 250 °F)**
Viton™ gasket Æ20 and 121 °C (Æ4 and 250 °F)
PTFE gasket Æ20 and 85 °C (Æ4 and 185 °F)
* 85 °C (185 °F) for applications under 10 kPa, 100 mbar abs., 1.45 psia up to
3.5 kPa abs., 35 mbar abs., 0.5 psia
** 85 °C (185 °F) for applications below atmospheric pressure up to
17.5 kPa abs., 175 mbar abs., 2.5 psia
14 Additional documents
Note
All documentation, declarations of conformity, and certificates
are available in ABB's download area.
www.abb.com/pressure
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