Справочник Пользователя для Emerson Process Management 3420

June 2013

3-9000-743 Rev S

5.7.2

Calculated results

The Daniel MeterLink 

 displays the following meter-calculated values:

•

Update time

•

Samples/update

•

Emission rate

•

Stacked Emission rate

•

Past samples used

•

Total samples used

The samples per update is the average number of new samples (waveforms per transducer) 
collected during an update period. The past samples used shows how many samples from 
previous update periods will be used in the current update period. The total samples used is the 
total of past and new samples used in the current update period. Refer to 

 for 

further information on these update-time related values.

Beginning with Daniel MeterLink version 3.10, the 

 also displays the path 

signal-to-noise ratios (SNRs) and waveforms to facilitate determining if applying stacking 
and/or filtering improves the signals. Generally, signal improvement is indicated by an increase 
in the SNR. Note that the SNRs and waveforms are for the parameters currently used by the 
meter; parameter changes do not take affect until the

 button is clicked.

Smoothing%

Data points affected:

•

BatchPercentSmoothing

Options:

•

0% (0)

•

20% (20)

•

40% (40)

•

60% (60)

•

80% (80)

Guidelines:

•

For additional guidelines, see 

 and Daniel MeterLink online 

help.