Mounting; General; Ip Protection And Designation; Mounting The Transmitter - ABB 266 HART Operating Instruction

266 Models - HART

Mounting

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
– 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.
IP protection & designation
The housings for 266 transmitters are certified as conforming to protection type IP66 / IP67 (according tonIEC 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
integrated electronics have 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.

Mounting the transmitter

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
12 OI/266/HART-EN Rev. D | 2600T Series Pressure transmitters