Hazardous Area Consideration; Pressure Equipment Directive (Ped) (97/23/Ce); Devices With Ps >200 Bar; Mounting A Differential Pressure Sensor Transmitter - ABB 266 HART Operating Instruction

Hazardous area considerations
The transmitter must be installed in hazardous area only if it is
properly certified. The certification plate is permanently fixed
on the neck of the transmitter top housing.
The 266 Pressure Transmitter Line can have the following
certifications:
ATEX INTRINSIC SAFETY
II 1 G Ex ia IIC T4/T5/T6 and II 1/2 G Ex ia IIC T4/T5/T6
II 1 D Ex iaD 20 T85°C and II 1/2 D Ex iaD 21 T85°C
ATEX EXPLOSION PROOF
II 1/2 G Ex d IIC T6 and II 1/2 D Ex tD A21 IP67 T85°C
ATEX TYPE "N" / EUROPE:
II 3 G Ex nL IIC T4/T5/T6 and II 3 D Ex tD A22 IP67 T85°C
COMBINED ATEX, ATEX FM and FM Canada
See detailed classifications
FM Approvals US and FM Approvals Canada:
Explosionproof (US): Class I, Div. 1, Groups A, B, C, D
Explosionproof (Canada): Class I, Div. 1, Groups B, C, D
Dust ignitionproof : Class II, Div. 1, Groups E, F, G
Nonincendive: Class I, Div. 2, Groups A, B, C, D
Intrinsically safe: Class I, II, III, Div. 1, Groups A, B, C, D, E, F, G
Class I, Zone 0, AEx ia IIC T6/T4 (FM US)
Class I, Zone 0, Ex ia IIC T6/T4 (FM Canada)
IEC (Ex):
See ATEX detailed classifications
INTRINSIC SAFETY/CHINA
NEPSI approval Ex ia IIC T4-T6
FLAMEPROOF/CHINA
NEPSI approval Ex d IIC T6
GOST (Russia), GOST (Kazakistan), Inmetro (Brazil)
based on ATEX.

Pressure Equipment Directive (PED) (97/23/CE)

Devices with PS >200 bar
Devices with a permissible pressure PS >200 bar have been
subject to a conformity validation. The data label includes the
following specifications:
ABB S.p.A.
Made in Italy
PRODUCT CODE
SEAL-H
SPEC.REQUEST
SENSOR DIAPH.-FILL
FLANGE/CONN.-GASKET/S
H DIAPH.-FILL
L DIAPH.-FILL
POWER SUPPLY
TS
MWP/OVP
LRL/URL
SPAN LIMITS
Local keys below label
Figure 5: 266 nameplate with PED data
SERIAL\NUMBER
SEAL-L
HW Rev. MD:
PED:
OUTPUT SIGNAL
PS
Devices with PS <200 bar
Devices with a permissible pressure PS <200 bar correspond
to article 3 paragraph (3). They have not been subject to a
conformity validation. These instruments were designed and
manufactured acc. to SEP Sound Engineering Practices.

Mounting a Differential Pressure sensor transmitter

(266DS/ 266MS /266PS / 266DR / 266PR / 266MR)
The pressure transmitter models 266DS, 266MS and 266PS
can be mounted directly on the manifold. A mounting bracket
for wall or pipe mounting (2" pipe) is also available as an
accessory. For models 266DR, 266PR and 266MR always
mounting brackets should be used. Ideally, the pressure
transmitter should be mounted in a vertical position to prevent
subsequent zero shifts.
Important
If the transmitter is installed inclined with respect to the vertical, the
filling liquid exerts hydrostatic pressure on the measuring
diaphragm, resulting in a zero shift. In such an event, the zero point
can be corrected via the zero push-button or via the "set PV to
zero" command. Please refer to the [configuration section] for
further details. For transmitters without diaphragm seals, please
read the following considerations on the Vent/Drain.
Attention - Potential damage to transmitter
In case of a High Static differential pressure transmitter
(266DSH.x.H) please always open the equalization valve of the
manifold (if installed) before applying pressure to the transmitter.
High Static pressure can damage the sensor causing a zero shift
and a serious decrease of the total performance in terms of
accuracy. In this case, please perform a full sensor trim.
2600T Series Pressure transmitters | OI/266/HART-EN Rev. D 13