Emerson 3051S Spezifikationen PDF herunterladen (Seite 133)

Reference Manual

00809-0100-4801, Rev FA

October 2010

7-29

Rosemount 3051S Series

Reset All Temperature Events

Selecting this will reset all values on this screen to zero with the exception of

Total Operating Time, the Total Time above and below sensor limit, and the

Number of Events for above and below sensor limit.

PROCESS ALERTS

Overview Process alerts can be used in addition to alarm or alerts generated in the

control system to indicate problems with the process or installation.

Pressure Alerts

Figure 7-23. Process Pressure

Alerts screen

Figure 7-23 shows the configuration section for Pressure Alert. If applied

pressure goes above or below the alert values, the LCD will indicate a

pressure alert and a HART alert will be generated by the transmitter. An active

alert will not affect the transmitter’s 4 – 20 mA output signal.

Alert Mode

This setting dictates whether the diagnostic is On or Off. Selecting “On

Unlatched” will generate a HART alert when the alert values are tripped.

When pressure returns to normal and within the alert limits, the alert is

automatically cleared. Selecting “On Latched” will generate the same HART

alert but will require a manual reset to clear the alert.

Latched alert action is recommended if 3rd party alert monitor software is

likely to miss alerts due to slow polling of HART data.

High Alert Value / Low Alert Value

These are independent trip values for the diagnostic. These values are

represented on the graph by the red lines.

Device Dashboard

Fast Keys

2, 3, 4, 1

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Emerson 3051S Spezifikationen Seite 133