Vaisala DRYCAP DMT345 Guia do Utilizador descarregar pdf (Página 112)

USER'S GUIDE____________________________________________________________________

112 _________________________________________________________________ M210762EN-D

Operation of Relays

Quantity for Relay Output

A relay monitors the quantity chosen for the relay output. Any of the

quantities available can be chosen.

Measurement-Based Relay Output

Modes

Relay Setpoints

When the measured value is in between the "above" and "below" values,

the relay is passive. When choosing lower value as "above" value and

higher value as "below" value, the relay is passive when the measured

value is not between the setpoints. You can also set only one setpoint.

See Figure 60 below for illustrative examples of the different

measurement-based relay output modes.

0610-076

Figure 60 Measurement-Based Relay Output Modes

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