Yokogawa Removable Chassis DX1000N Manual do Utilizador descarregar pdf (Página 12)

IM 04L41B01-05EN

1-6

Display and Event Data Recording Methods

For the setting procedure, see section 6.1 in the User’s Manual.

For operating instructions, see section 6.4 in the User’s Manual.

Type of Data to Record

You can choose to record display or event data.

• Choosing What Type of Data to Record

Record the type of data that meets your needs. Use the following examples for

reference.

Example 1: Record continuous waveform data only, just like conventional chart sheet

recording instruments.

Record display data.

Example 2: Continuously record data that is as detailed as possible.

Set the sampling interval and record event data.

Internal Memory

The measured data is partitioned and saved to files at set intervals. If the internal

memory is full or if the number of display-data files and event-data files exceeds 400,

files are overwritten from the oldest file.

Recording Conditions of Display Data

Item Description

Channel type You can set the channel type to measurement, computation, or

extended input.

Sampling interval Determined by the "trend refresh interval" (see the following

diagram). You cannot choose a display-data sampling interval that

is higher than the scan interval.

File generation Files are generated at the set file-save interval.

Files are also generated in these cases:

• When you generate a file manually.

• When sampling stops (memory stop).

• When a file is generated through the use of the event-action

feature.

• After the DX recovers from a power failure.

Memory start/stop Pressing the START key starts recording (memory start). Pressing

the STOP key ends recording (memory stop).

Trend update interval vs. display data sampling interval

Trend interval 5 s

10 s

15 s

30 s 1 min

Sampling

interval

125 ms 250 ms 500 ms 1 s 2 s

Trend interval 2 min 5 min 10 min 15 min 20 min

Sampling

interval

4 s 10 s 20 s 30 s 40 s

Trend interval 30 min 1 h 2 h 4 h 10 h

Sampling

interval

1 min 2 min 4 min 8 min 20 min

Selectable on the DX1002, DX1004, DX1002N, DX1004N, DX2004, and DX2008.

Selectable in fast sampling mode on the DX1006, DX1012, DX1006N, DX1012N, DX2010,

DX2020, DX2030, DX2040, and DX2048.

1.2 Recording and Saving Data

Time

File File File Adding data

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 71 72

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