Siemens SITRANS L Series Manuale di istruzioni per l'uso - Pagina 14

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Connection

• Open device only when supply voltage is switched off.

• For switch-selectable voltage version, select correct voltage using manual voltage

Note

• All field wiring must have insulation suitable for at least 250 V AC.

• A disconnect switch shall be in close proximity to the equipment and within easy reach of

the operator.

• Unused cable conduit fittings must be locked with a closing element or plug.

• Commissioning must be done only with a closed device.

• Observe all pertinent rules and regulations of the country of installation.

European standards

• Cable glands and conduit system for ATEX IECEx (Dust and Gas Hazardous Locations):

Installation according to the regulations of the country where the unit is installed. Not

used entries have to be closed with blanking elements certified for this purpose. Where

available, factory provided parts must be used.

A strain relief must be provided for the field wiring cables, when the device is installed

with the factory provided cable glands.

The diameter of the field wiring cable must match to the clamping range of the cable

clamp. If parts other than the factory provided parts are used, the following must be

ensured:

The parts must have an approval adequate to the approval of the level sensor (certificate

and type of protection). The approved temperature range must be from the minimum

ambient temperature of the level sensor to the maximum ambient temperature of the level

sensor increased by 10K.

The parts must be mounted according to the instructions of the supplier.

• Conduit system for FM and CSA (Dust and Gas Hazardous Locations):

General requirements: In addition, the regulations of the country must be observed. The

used flameproof seals and blanking elements must have an adequate type approval and

a temperature range of at least -40 to 80 °C (-40 to 176 °F). In addition, they shall be

suitable for the conditions and correctly installed. Where available, the provided original

parts of the manufacturer must be used.

WARNING

jumper before switching on the power supply.

Operating Instructions, 04/2019, A5E34210883-AB

SITRANS LPS200