11 File mode

Sample rate: sampling rate of the channels

-internally rated from 1 s to 20 min

-externally rated through the logical channel 16

Start: start condition of the acquisition

-Manual: with the F2 key Urge triggering

-Trigger: with an association of the analogical or logical channels - see Chapter 6

Trigger

-Waiting for: after a delay or at a precise date and time

-Automatic: immediate; automatic stop when the block is full

Stop: stop condition of the acquisition

-Automatic: when the block is full

-Trigger: with an association of the analogical or logical channels - see Chapter 6

Trigger

Trigger mode Double Trigger: see below Memory mode

Following: actions after the end of the acquisition

-Stop: no action

-Ream: waiting for the start condition

-Change Setup: loading a configuration and waiting for the start trigger

11.2.Limits

Real-time acquisitions on file are limited by the transfer rate between the inputs and the saving hardware liek an internal hard disk or a USB key.

This limit depends on the type of the acquisition file: binary or ascii.

11.1.1.Binary file

The maximum transfer rate is 1,200,000 bytes/s (1.2 Mbyte/s).

In order to know the number of channels that you can record for a given acquisition period, you have to calculate:

number of channels = 1,200,000 x acquisition period

example:

acquisition period: 10 s

 

number of channels = 1,200,000 x 10 s = maximum 12 channels

11.1.2.Ascii file

The maximum transfer rate is 1,000 bytes/s (1.0 Kbyte/s).

The minimum acquisition period is 1ms.

In order to know the number of channels that you can record for a given acquisition period, you have to calculate:

number of channels = 1 000 x acquisition period

Page 2

Page 78
Image 78
Escort 3016B, 3008B, 3004B user manual Limits, Binary file, Ascii file