Mettler Toledo M300 ISM Especificações descarregar pdf (Página 64)

Transmitter M300 64

Printed in Switzerland 52 121 389

Enter the desired value(s) for the Setpoint and press [ENTER]

This screen provides the option to configure a setpoint to be active on an over range condition.

Select the setpoint and ”Yes” or ”No”. Select the desired relay that will activate when the setpoint

alarm condition is reached.

Out of Range

Once configured, the selected relay will be activated if a sensor Out of Range condition is detect-

ed on the assigned input channel.

Delay

Enter the delay time in seconds. A time delay requires the setpoint to be exceeded continuously

for the specified length of time before activating the relay. If the condition disappears before the

delay period is over, the relay will not be activated.

Hysteresis

Enter value for the hysteresis. A hysteresis value requires the measurement to return within the

setpoint value by a specified hysteresis before the relay is deactivated.

For a high setpoint, the measurement must decrease more than the indicated hysteresis below

the setpoint value before the relay is deactivated. With a low setpoint, the measurement must

rise at least the hysteresis above the setpoint value before the relay is deactivated. For example,

with a high setpoint of 100 and hysteresis of 10, when this value is exceeded, the measurement

must fall below 90 before the relay is deactivated.

Hold

Enter the Relay Hold Status of ”Last”, ”On” or ”Off”. This is the state the Relay will go to during a

Hold status.

State

Relay contacts are in normal state until the associated setpoint is exceeded, then the relay is ac-

tivated and the contact states change.

Select ”Inverted” to reverse the normal operating state of the relay (i.e. Normally open contacts

are in a closed state, and normally closed contacts are in an open state, until the setpoint is ex-

ceeded). ”Inverted” relay operation is functional when power is applied to the M300 transmitter.

Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will dis-

card the entered values and return to the measurement display screen, selecting Yes will

save changes made.

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Mettler Toledo M300 ISM Especificações Página 64