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7.2.2
Frequent check of the unit
Frequent check of the unit
To ensure durable safety in hazardous locations and with electrical safety, the following
items must be checked frequently depending on the application:
• Mechanical damage or corrosion of any components (housing side and process side) and
• Tight sealing of the process connection, cable glands and, enclosure lid
• Properly connected external PE cable (if present)
7.2.3
Cleaning
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 cleaning process must be done in a way, that:
• The cleaning agent cannot enter into the unit through the lid sealing or cable gland.
• No mechanical damage of the lid sealing, cable gland or other parts can happen.
Units with EHEDG (EL class I) certification, which are used in the respective EHEDG
application must be cleaned according to the respective regulations.
The device has been developed for Cleaning in Place (CIP) application and must not be
dismantled for cleaning.
Units with explosion certification (not valid if units have as well EHEDG certification):
A possible accumulation of dust on the unit does not increase the maximum surface
temperature and must therefore not be removed for purposes of maintaining the surface
temperature in hazardous locations.
7.2.4
Max. temperature for CIP
Max. temperature for CIP
135°C (275°F), duration 60min
150°C (302°F), duration 30min (only for SITRANS LCS100 with process connection G 1/2"
hygienic) Ambient temperature limited to 50°C (122°F), unit de-energized.
SITRANS LCS100 2-wire mA and Relay Version
Operating Instructions, 05/2023, A5E52142831-AA
WARNING
of the field wiring cables
WARNING
the lid sealing, cable gland and the surface of the unit must be considered.
WARNING
Service and maintenance
7.2 Maintenance and repair work
55
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