ABB 266DSH Differential pressure transmitters

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

Vibration resistance

Accelerations up to 2 g at frequency up to 1000 Hz

(according to IEC 60068–2–6)

Shock resistance

Acceleration: 50 g

Duration: 11 ms

(according to IEC 60068–2–27)

Wet and dust-laden atmospheres

The transmitter is dust and sand tight and protected

against immersion effects as defined by IEC 60529 (2001)

to IP 67 (IP 68 on request) or by NEMA Type 4X.

IP65 with Harting Han connector.

Aluminium and AISI housings as barrel version also comply

to IP 66 as defined by IEC 60529 (2001).

IP66W/IP67W/IP68W as standard for Inmetro certification.

Specification – performance

Stated at reference condition to IEC 60770 ambient

temperature of 20 °C (68 °F), relative humidity of 65 %,

atmospheric pressure of 1013 hPa (1013 mbar), mounting

position with vertical diaphragm and zero based range for

transmitter with isolating diaphragms in AISI 316 L ss or

Hastelloy and silicone oil fill and HART digital trim values

equal to 4 mA and to 20 mA span end points, in linear

mode.

Unless otherwise specified, errors are quoted as % of

span.

Some performance referring to the Upper Range Limit are

affected by the actual turndown (TD) as ratio between

Upper Range Limit (URL) and calibrated span.

Static pressure

(zero errors can be calibrated out at line pressure)

per 0.5 MPa, 5 bar or 72.5 psi (sensor A)

per 2 MPa, 20 bar or 290 psi (sensor B)

per 3.5 MPa, 35 bar or 500 psi (sensor E)

per 7 MPa, 70 bar or 1015 psi (sensor F to S)

Model 266DSH standard static

• zero error: ±0.05 % of URL for sensor F to S

±0.08 % of URL for sensor A, B and E

• span error: ±0.08 % of reading.

Model 266DSH flange mounted

per 2 MPa, 20 bar or 290 psi

• zero error: ±0.05 % of URL for sensor F to P

±0.08 % of URL for sensor E

span error: ±0.08 % of reading.

Mounting position

Rotations in the plane of the diaphragm have a negligible

effect. A tilt from the vertical of up to 90° causes a zero

point shift of up to 0.5 kPa (5 mbar, 2 inH2O), which can be

corrected by making an appropriate zero position

adjustment. There is no effect on the measuring span.

In applications where a dynamic inclined installation is

required (e.g. naval applications with maximum vessel

inclination of +/-22.5°), the maximum error can be up to 3

mbar for 266DSH

Such error might be resulting in a deviation from the

standard accuracy with percentual magnitude depending

on the range of the selected device.

In case of non-dynamic inclined installations, this effect

can be eliminated by performing a zero calibration in the field.

Please contact ABB to assess more in details on the installation effects