The sampling rate of Multimeter Protek 508 via RS232

[hongnhan]

Hi everyone. I have the multimeter Protek 508. I want to take the data from it via RS232. The default detail of RS232 is:

                Baud rate: 1200

                Data bit: 7

                Stop bit: 2

                Flow control: None

I write the code and get the data from it. But i only have the sampling rate is 2 data per second, that mean 500 ms per data. I want the sampling rate more than that. Can anyone help me to solve this problem. 

Thank you.

[mikeporter]

You are probably getting everything out of this device that you can. First, it is old, make that, very old. Back in the day, it might have been quick, but that was then. This is now.

Second it's a multimeter. Very often meters like that would do running averages to make the reading appear more stable. That averaging slows down the rate at which you get new data.

How fast are you needing to acquire data?

Mike...

[hongnhan]

Hi. I know this is the old device. The baud rate is 1200. I just need it get more sampling rate like 5 data per second or 4 data per second. I had try many ways including set the milisecond multifle to zero, but the sampling rate was still 2 data per second.

[mikeporter]

You may be stuck. Is there anything else you can use?

Mike...

[hongnhan]

Hi mikeporter. This is the only device i ever had. I had the same problem with getting data from lock-in SR510 via RS232. The baud rate of lock-in is 9600 but i only had  the sampling rate is 50 data per second.