Aplisens WW-11ALW Podręcznik użytkownika - Strona 13

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a) Diagram of connection with transmitter;

b) Diagram of connection with transmitter with "Hart" communication.

Communicator shall have approval for use in the hazardous zone and connecting it to the

signal line routed to the hazardous zone.

Transmitter shall be configured and calibrated in the safe area when such approval is miss-

ing.

In order to communicate with the intelligent transmitter (via HART protocol), before connect-

ing the local communicator or converter, it is necessary to check whether the Ro resistance

seen from terminals (2) and (3) of the display towards the power source is in the range

240≤Ro≤1100 Ω.

8.5. Earthing

The display must be earthed in accordance with local electrical standards.

The recommended way to connect earthing for WW-11ALW display is shown in figure 7.

Shield of a cable shall be connected from the one side with earth terminal if cable in the shield is

used.

Revision 01.B.003/2020.09

EN.IO.WW.11.ALW