Siemens SITRANS L Series Operating Instructions Manual - Page 33

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Service and maintenance

5.1

Opening the lid (cover)

Before opening the lid for maintenance reasons observe following items:

- Do not remove the lid while circuits are alive.

- No dust deposits or whirlings are present.

- No rain can enter into the housing.

Frequent check of the unit

To ensure durable safety in hazardous locations and with electrical safety, following items

must be checked frequently depending on the application:

- Mechanical damage or corrosion of any components (housing side and sensor side) and

of the field wiring cables.

- Tight sealing of the process connection, cable glands and enclosure lid.

- Properly connected external PE cable (if present).

Note

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

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 lid sealing or cable gland.

- No mechanical damage of the lid sealing, cable gland or other parts can happen.

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.

SITRANS LVS300

Operating Instructions, 05/2019, A5E44908583-AB

CAUTION