Epson CMD-2260 (CD-ROM) Información técnica descargar pdf (Pagina 51)

__________________________________________________

Blastware Compliance Module

Blastware Operator Manual 4–27

iv Histogram (Strip chart) Record Mode (Blastmate II and Series III only)

Use the histogram record mode for long-term recording periods such as monitoring of pile driving

operations. Histogram record mode operates with both four and eight channel monitors. Four

channel histogram Events can be printed on the Blastmate III printer, eight channel Events cannot.

Print eight channel Events using the Blastware software program.

In histogram mode, the monitor stores summary information in intervals. The monitor continues to

sample data continuously at the chosen sample rate but only stores the relevant peaks for the

interval. This reduces the data recorded and greatly increases the monitors storage capacity. For

each interval, the monitor calculates the maximum peaks, the frequency of the largest peak, and

the peak vector sum. For each channel, the maximum peak and its frequency are calculated. Also

the largest peak vector sum is calculated over the entire Event. Events may be printed in histogram

or tabular mode using the Blastmate III. Histogram mode displays the peak of each interval in a

bar chart, while tabular format represents the peaks as numbers.

v Histogram Combo Mode (Series III only)

This mode creates a waveform during Histogram recording if the signal exceeds the waveform

trigger level. The waveform Event is saved as a separate file while the Histogram Event file

remains continuous. A maximum of 13, 1-second waveform Events can be recorded. The

auxiliary trigger and printing are automatically disabled during histogram combo mode.

The maximum sample rates in this mode are as follows:

a. 4 channels or less: 2048 samples per second

b. more than 4 channels: 1024 samples per second

(2) Record Stop Mode

The Recording Stop Mode sets how the monitor stops recording after being triggered. Choose a

record stop mode if you are using the single shot or continuous record modes. You can choose

between a Fixed Record Time setting or an Auto Record setting. Fixed Record Time sets the

record time to a specified length. Once the record time has elapsed, the monitor stops recording. In

Auto Record, unlike the Fixed Record Time, the monitor continues to record Event activity as

long as that activity remains above the trigger level (sufficient memory and battery power must be

available). Recording stops a specified period of time after the Event activity falls below the

trigger level. The specified period of time, called the Auto Window, can be adjusted. Use the

Auto Record mode if you are unsure of the actual Event duration.

To choose a Recording Stop Mode, position the mouse pointer on the Recording Stop Mode

drop–down menu and click the mouse button. Choose Fixed Record Time or Auto Record.

(3) Sample Rate

The monitor has three sample rates; standard (1024 samples per second), fast (2048 samples per

second), and faster (4096 samples per second on channels 1 to 4 only). The choice of a sample rate

depends on the type of monitoring you are conducting. Increasing the sample rate increases the

accuracy of the waveform recording. For this reason, set the sample rate according to the location

of the standard transducer or the Minimate Plus. For close-in or near field monitoring, set the

sample rate to 4096 samples per second. For far-field monitoring, set the sample rate to 1024

samples per second. Increasing the sample rate also increases the amount of memory required to

store Events and reduces the number of Events that can be stored on the monitor. It also reduces

the battery life.

To choose a recording rate, click on the Sample Rate drop–down menu. Click the mouse pointer

on the required sample rate.

(4) Record Time/Auto Window

This setting changes between record time and auto window depending on the record stop mode

chosen above. If you chose Fixed Record Time, enter a time in seconds in the Record Time box.

If you chose Auto, enter a value for the Auto Window ranging from one to nine seconds.

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 223 224

Comentarios a estos manuales

Sin comentarios

Epson CMD-2260 (CD-ROM) Información técnica Pagina 51

Comentarios a estos manuales

Relacionado con productos y manuales para Software Epson CMD-2260 (CD-ROM)