Specification; Operating Limits 266Crx; Pressure Limits; Gauge Pressure Limits - ABB 266CRH Instructions Manual

266CRH / 266CRT, 266CSH / 266CST MULTIVARIABLE PRESSURE TRANSMITTER | OI/266CXX/MODBUS-EN REV. A

13 Specification

Note
The device data sheet is available in the ABB download area at
www.abb.com/pressure.

Operating limits 266CRx

Note
See also data sheet DS/S26 for information on other possible
restrictions based on diaphragm seal versions.

Pressure limits

Gauge pressure limits

The transmitter models 266CRX can operate without damage
within the following overpressure limits:
Sensors Filling fluid
C to N Silicone oil
C to N Fluorocarbon
(Galden™)

Static pressure limits

The transmitter models 266CRX can operate within the
specifications with the following overpressure limits:
Sensors Filling fluid
C to N Silicone oil
C to N Carbon fluoride
(Galden™)
The overpressure limits and upper static pressure limits can be
lowered by means of the nominal pressure of the diaphragm seal
flange; see remote seal data sheet DS/S26.
Gauge pressure limits
0.07 kPa abs., 0.7 mbar abs., 0.5 mm Hg
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
17.5 kPa abs., 175 mbar abs., 131 mmHg
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
Static pressure limits
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
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

Test pressure

The transmitters can withstand a pressure test with the
following line pressure without leaking:
Model
266CRX
* Or double the value of the pressure sensor flange pressure rating,
depending on which value is less. Meets hydrostatic test requirements of
ANSI/ISA-S 82.03.
Temperature limits °C (°F)

Environment

This is the operating temperature.
All models
Silicone oil
Fluorocarbon (Galden™)
All models
Integral LCD display*
Viton® gasket
PTFE gasket
If may no longer be possible to read the LCD display clearly below
*
20 °C ( 4 °F) and above 70 °C (158 °F).
Note
For applications in potentially explosive environments, the
temperature range specified on the certificate / approval which
depends upon the type of protection sought shall apply.

Process

All models
Silicone oil
Fluorocarbon (Galden™)
Viton® gasket
PTFE gasket
* 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
Test pressure
1.5 × nominal pressure (static pressure
limit) simultaneously on both sides*
Ambient temperature limits
40 and 85 °C ( 40 and 185 °F)
40 and 85 °C ( 40 and 185 °F)
Ambient temperature limits
40 and 85 °C ( 40 and 185 °F)
20 and 85 °C ( 4 and 185 °F)
20 and 85 °C ( 4 and 185 °F)
Process temperature limits
40 and 121 °C ( 40 and 250 °F)*
40 and 121 °C ( 40 and 250 °F)**
20 and 121 °C ( 4 and 250 °F)
20 and 85 °C ( 4 and 185 °F)
87