DAQcard 6062E between channel delay

[s_yakov]

I experienced a between-channel delay when acquire multichannel analog data with my PCMCIA DAQCard-6062E.

I can not find the switch-delay value in the DAQCard-6062E specification.

Where can I find a specification for the switch-delay value? Does this value controllable by NIDAQ software?

[sonic_raajit]

This switch delay should be very small. What is the delay that you are seeing?

QUOTE(s_yakov @ Feb 27 2007, 04:29 PM)

I experienced a between-channel delay when acquire multichannel analog data with my PCMCIA DAQCard-6062E.

I can not find the switch-delay value in the DAQCard-6062E specification.

Where can I find a specification for the switch-delay value? Does this value controllable by NIDAQ software?

[French LVer]

As sonic_raajit said, settling time is very short.

You must have some side-effect problem.

You should consult "E Series User Manual" page 2-9 to 2-13 (Multichannel Scanning Considerations).

You can find this manuel here : E Series User Manual

I hope it will help you.

[s_yakov]

QUOTE(sonic_raajit @ Feb 28 2007, 05:03 AM)

This switch delay should be very small. What is the delay that you are seeing?

As I measured, the switch delay is 4us. It is not very small for my application. I have to arrange a compensation of this delays in my software. What I want to know is exact value of the switch delay. It must be specified in DAQCard-6062E hardware manual, but I can not find it in the manual. It would be great, if NI illuminate the switch delay value for me.

Thanks in advance.

[Ton Plomp]

Well the 6062E is a 500 kS/s device eg. 2 us. It will be quite hard to say anything about a 4 us signal.

To get exactly the same time, you'll need a simultaneaous sampling device (quite expensive)

Ton