Mettler Toledo M400 Dokumentacja Pobierz pdf (Strona 77)

Transmitter M400 77

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

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

save changes made.

8.4 Set points

(PATH: Menu / Configure / Set Points)

Enter Configuration mode as described in Section 8.1. “Enter Configuration Mode” and navigate

to the menu “Set Points” by using the  or . key.

Press the [ENTER] key to select this menu.

Up to 6 setpoints can be configured on any of the measurements (a thru d). The possible Set-

point types are Off, High, Low, Outside and Between.

An ”Outside” setpoint will cause an alarm condition whenever the measurement goes above its

high limit or below its low limit. A ”Between” setpoint will cause an alarm condition to occur

whenever the measurement is between its high and low limits.

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

Depending on the defined setpoint type, this screen provides the option to adjust the values for

the setpoint(s).

Press [ENTER] to proceed.

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. Select the setpoint and ”Yes” or ”No”. Select the desired relay

that will activate when the setpoint alarm condition is reached.

Press [ENTER]

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 the hysteresis as a percentage-value. A hysteresis value requires the measurement to re-

turn within the setpoint value by a specified percentage before the relay is deactivated.

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

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

must rise at least this percentage above the setpoint value before the relay is deactivated. For

example, with a high setpoint of 100, when this value is exceeded, the measurement must fall

below 90 before the relay is deactivated.

Press [ENTER]

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Mettler Toledo M400 Dokumentacja Strona 77