Mettler Toledo M400/2(X)H Specifikace Strana 57

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Transmitter M400/2(X)H, M400G/2XH 57
© 03 / 2014 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400/2(X)H, M400G/2XH
Printed in Switzerland 30 031 683
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.
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]
h
NOTE: Beside the measurement values pH, O2, T, etc. also the ISM values DLI, TTM and ACT
can be linked to the set points if they have been assigned to the corresponding line in the
display (see chapter 8.2.1.2 “ISM sensor”).
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 OC 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 OC
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 OC. If the condition disappears before the
delay period is over, the OC 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 OC is deactivated.
For a high setpoint, the measurement must decrease more than the indicated hysteresis below
the setpoint value before the OC is deactivated. With a low setpoint, the measurement must rise
at least this hysteresis above the setpoint value before the OC 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 OC is deactivated.
Press [ENTER]
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