8
2 6 6 H S H MODBUS TR A N S M IT TE R |
P R E SSU R E/ T EM P ER AT U R E M U LT I VA R I A B L E | O I/ 2 6 6 H SH M T- EN R E V. A
Figure 4: 266 nameplate with PED data
Local keys below label
PRODUCT CODE
SEAL-H
SEAL-L
SPEC.REQUEST
LRL/URL
SPAN LIMITS
POWER SUPPLY
OUTPUT SIGNAL
ABB S.p.A.
Made in Italy
TS
PS
SERIAL\NUMBER
SENSOR DIAPH.-FILL
FLANGE/CONN.-GASKET/S
H DIAPH.-FILL
L DIAPH.-FILL
SEAL
HW Rev.
MD:
PED:
MWP/OVP
5.4.2 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.
5 Mounting
5.1 General
Study these installation instructions carefully before
proceeding. Failure to observe the warnings and
instructions may cause a malfunction or personal hazard.
Before installing the transmitter, check whether the device
design meets the requirements of the measuring point
from a measurement technology and safety point of view.
This applies in respect of the:
— Explosion protection certification
— Measuring range
— Gauge pressure stability
— Temperature (Ambient and Process)
— Operating voltage
The suitability of the materials must be checked as regards
their resistance to the media. This applies in respect of
the:
— Gasket
— Process connection, isolating diaphragm, etc.
In addition, the relevant directives, regulations, standards,
and accident prevention regulations must be observed
(e.g., VDE/VDI 3512, DIN 19210, VBG, Elex V, etc.).
Measurement accuracy is largely dependent on correct
installation of the pressure transmitter and, if applicable,
the associated measuring pipe(s). As far as possible, the
measuring setup should be free from critical ambient
conditions such as large variations in temperature,
vibrations, or shocks.
Important. If unfavorable ambient conditions cannot be
avoided for reasons relating to building structure,
measurement technology, or other issues, the measurement
quality may be affected. If a remote seal with capillary tube is
installed on the transmitter, the additional operating
instructions for remote seals and the related data sheets must
be observed.
5.2 IP protection & designation
The housings for 266 transmitters are certified as
conforming to protection type IP66 / IP67 (according to
IEC 60529) or NEMA 4X (according to NEMA 250).
The first number indicates the type of protection the
integrated electronics have against the entry of foreign
bodies, including dust.
“6” means that the housing is dust-proof (i.e., no ingress
of dust).
The second number indicates the type of protection the
housing has against the entry of water.
“6” means that the housing is protected against water;
specifically, powerful jets of water under standardized
conditions.
“7” means that the housing is protected against water;
specifically, against the effects of temporary immersion in
water under standardized water pressure and temporal
conditions.
5.3 Mounting the transmitter
5.3.1 Transmitter factory configuration consideration
The 266 pressure transmitter in your hands has been
factory calibrated to reflect the published declared
performance specification; no further calibration is
required in normal condition. ABB typically configures 266
pressure transmitters according to the user requirements.
A typical configuration includes:
— TAG number
— Calibrated span
— Output linearization
— LCD display configuration
5.3.2 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.
Warning - General Risk
for model 266 used in zone 0.
The enclosure contains aluminum and is considered to present a
potential risk of ignition by impact or friction. Care must be
taken into account during installation and use to prevent impact
or friction.
5.4 Pressure Equipment Directive (PED) (2014/68/
EU)
5.4.1 Devices with PS >200
Devices with a permissible pressure PS >200 bar have been
subject to a conformity validation. The data label includes
the following specifications: Pressure Equipment Directive
(PED) (2014/68/EU).
