Despatch MIC1422 Controller Manuel d'utilisateur télécharger pdf (Page 32)

4.3 Override Feature

While the instrument is being used with either Dual Setpoint operation or Remote

Setpoint operation, the Override feature is available. This enables the active setpoint

selected by the digital input to be manually overridden from the keypad. To engage the

Override feature, with the instrument displaying the desired setpoint, press the UP and

DOWN keys simultaneously. This will cause the left-most character of the lower display

to show a flashing " ". This indicates that the display setpoint is now the active

setpoint, regardless of the state of the digital input. To cancel an override condition,

simply press the UP and DOWN keys again with this display shown.

4.4 Alarm Status Display

If any alarms are active, the user may view the alarm status by pressing the SCROLL

key until the lower display shows the legend ALSt. The upper display will have the

following format:

4.5 Over-Range I Under-Range Display

If the process variable attains a value higher than the input scale maximum

limit, the upper display will show:

If the process variable attains a value lower than the input scale minimum,

the upper display will show:

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 90 91

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Despatch MIC1422 Controller Manuel d'utilisateur Page 32