Tecfluid LU Series Manual do Utilizador descarregar pdf (Página 8)

The analog output can be either active (default configuration), that means that the

receptor must be passive, or passive, what means the receptor must supply the power for

the current loop. It is recommended to use a receptor with an input resistance of less than

700  to guarantee correct operation.

To configure the analog output type (active or passive) there are two jumpers situated just

behind the terminal strip. For the passive mode the jumpers must be between pins 2 and

3 and for active mode the jumpers must be between pins 1 and 2.

In the case of using HART communication the output mode should be passive. Normally a

HART master is active (for more details about the communication and installation with

HART, see point 7).

NOTE: The analog output has protection against reversed polarity. Due to another

protection against over voltages, if a loop supply voltage of higher than 32 V is connected

the equipment may be damaged.

Ammeter

Level

transmitter

Level

transmitter

Power

supply

Passive output

Active output

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 27 28

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Tecfluid LU Series Manual do Utilizador Página 8