Specific Condition Of Use; Warnings For Installation - Siemens SITRANS LC300 Operating Instructions Manual

Wiring
5.8 Instructions specific to hazardous area
5.8.2

Specific condition of use

Electrostatic charge
The user shall ensure that the equipment is not installed where it may be subjected to
external conditions which might cause a build-up of electrostatic charge on non-conducting
surfaces.
Flameproof joints
The flameproof joints are not intended to be repaired
Ambient and process temperature range
The relation between ambient and process temperature ranges and the surface temperature
or temperature class is shown in thermal data tables. See Flameproof / explosion proof
configuration in hazardous areas (Page 19).
Max. permitted temperature close to the enclosure
If the process temperature exceeds the max. permissible ambient temperature, the max.
resulting temperature at the connection of the sensor head shall not exceed the related max.
permissible ambient temperature, taking the worst case conditions into account. This shall be
verified by measurement when installed.
5.8.3

Warnings for installation

Process pressure
The device construction allows process over-pressure upto 10 or 35 bar (146 or 511 psi). This
pressure is allowed for test purposes. The definition of the Ex approvals is only valid for a
container-over-pressure between -0.2 .. +0.1 bar (-2.9 .. +1.45 psi).
For higher or lower pressures, the approvals are not valid.
Process and ambient temperature
Please check the Flameproof / explosion proof configuration in hazardous areas (Page 19) for
the specific configuration you are about to use or install.
Chemical resistance against the medium
If the equipment is likely to come into contact with aggressive substances, then it is the
responsibility of the user to take suitable precautions that prevent it from being adversely
affected, thus ensuring that the type of protection is not compromised.
Aggressive substances: e.g., acidic liquids or gases that may attack metals, or solvents that
may affect polymeric materials.
Suitable precautions: e.g., establishing from the material's data sheet that it is resistant to
specific chemicals.
Cable entry devices / blanking elements general
Dust ignition proof:
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Operating Instructions, 05/2021, A5E47904073-AA
SITRANS LC300