ABB 266 HART Series, Operating Instruction

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8 OI/266/HART-EN Rev. D | 2600T Series Pressure transmitters
266 Models - HART
Safety information for inspection and maintenance
Corrective maintenance work may only be performed by trained personnel.
– Before removing the device, depressurize it and any adjacent lines or containers.
– Check whether hazardous materials have been used as materials to be measured before opening the device. Residual amounts of
hazardous substances may still be present in the device and could escape when the device is opened.
– Within the scope of operator responsibility, check the following as part of a regular inspection:
Pressure-bearing walls/lining of the pressure device
Measurement-related function
Leak-tightness
Wear (corrosion)
Warning – Risk to persons
There is no EMC protection or protection against accidental contact
when the housing cover is open. There are electric circuits within
the housing which are dangerous if touched.
Therefore, the auxiliary power must be switched off before opening
the housing cover.
Warning – Risk to persons
The device can be operated at high pressure and with aggressive
media.
Any process media released may cause severe injuries.
Depressurize the pipeline/tank before opening the transmitter
connection.