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Quick Start Guide
6
Maintenance
6.1
Opening the lid (cover)
Before opening the lid for maintenance reasons, consider the following:
•
Do not remove the lid in a hazardous area while circuits are live.
•
Ensure that no dust deposits or airborne dusts are present.
•
Ensure that rain does not enter the housing.
6.2
Regular checks for safety
To ensure robust safety in hazardous locations and with electrical safety, the
following items must be regularly checked depending on the application:
•
Mechanical damage or corrosion of the field wiring cables or any other
components (housing side and sensor side).
•
Tight sealing of the process connection, cable glands, and enclosure lid.
•
Properly connected external PE cable (if present).
6.3
Cleaning
If cleaning is required by the application, following must be observed:
•
Cleaning agent must comply with the materials of the unit (chemical
resistance). Mainly the shaft sealing, lid sealing, cable gland and the
surface of the unit must be considered.
The cleaning process must be done in a way, that:
•
The cleaning agent cannot enter into the unit through the shaft sealing,
lid sealing or cable gland.
•
No mechanical damage of the shaft sealing, lid sealing, cable gland or
other parts can happen.
Note
An accumulation of dust on the housing does not increase the surface
temperature. However, dust can be safely removed with a damp cloth.
Never use a dry cloth because it may cause an electrostatic discharge. See
the Rosemount 2555
surface temperatures in hazardous area (classified locations) applications.
6.4
Function test
Depending on the application, frequent functional testing may be required.
See
Manual function test (proof test)
44
Product Certifications document
for details.
October 2020
for the maximum
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