Siemens SITRANS P Manual de usuario descargar pdf (Pagina 129)

UMSITRPDS3-1 On-Line Operation

November 2010

6-31

The default setting for all warnings and alarms is OFF. To set and enable:

1. In the Online menu, press 3 Device Setup.

2. In the Device Setup menu, press 2 Diagnostics/Service.

3. In the Diagnostics/Service menu, press 1 Diagnosis

4. In the Diagnosis menu, press 3 Warnings/Alarms. Refer to the Online Configuration Map in

Appendix A and to the HART Communicator’s help screens.

6.4.19.1 Operating Hours Counter

Two operating hours counters with non-volatile memories are provided for the electronics and the sensor.

These counters are not re-settable. If power is removed and later reapplied, the counters begin counting

from the previous time. To read the operating hours counters:

1. In the Online menu, press 3 Device Setup

2. In the Device Setup menu, press 2 Diagnosis/Service

3. In the Diagnosis/Service menu, press1 Diagnosis

4. In the Diagnosis menu, press 2 Operating Hours

5. In the Operating Hours menu, press 1 Operating Hours Electronics or 2 Operating Hours Sensor. The

total operating hours will be displayed.

6.4.19.2 Calibration Timer and Service Timer

A two-stage time can be set to ensure regular calibration of the electronics and servicing of the

transmitter. A calibration or service warning appears after the first time expires. On expiration of a second

time, set as a time difference, a diagnostic alarm is signaled and a fault current is output.

A warning or alarm must be acknowledged before work can be performed on the transmitter. Timers can

then be reset and switched off temporarily.

For operating/acknowledging warnings and alarms in the HART Communicator, the following applies:

As long as the warning/alarm limit has not been reached:

• “Reset” resets the timer and begins again with the counter at 0. Monitoring is still active.

• “Acknowledge” has no effect, the timer continues running and the monitoring is still active.

• “Reset and deactivate” stops the timer, resets it, and deactivates the monitoring.

When the warning/alarm limit has been reached:

• “Acknowledge” resets the warning/alarm message but the timer continues to run. In this state, no new

alarm or warning is possible since the time limits will still have to be exceeded.

• “Reset” resets the warning/alarm message the timer. At the same time, the alarm or warning is

acknowledged. The timer runs again immediately from zero and will respond again when the

warning/alarm limit is exceeded. The next calibration interval is therefore immediately activated.

• “Reset and ActivateW/A” resets the warning/alarm message and resets and deactivated the timer.

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Siemens SITRANS P Manual de usuario Pagina 129