AC / DC filtering

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AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:50 am

Dear MEA team,

When applying a step calibration pulse of 1mv onto the solution using my reference electrode, I'm getting the signal filtered as if my MEA amplifier is measuring in AC.

my question is:

is there a way to make the system measure DC or is the AC a default and non changable mode of the system.

Thanks in advance,

Aviad

mcs

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Re: AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:51 am

Dear Aviad Hai,

the system is configured for AC recording. However if the recording bandwith of the amplifier is set to a low value (0,5 or 1Hz) you will be very close to DC recording.
As most users prefer avoid slow fluctuations of the baseline standard setting is 10Hz. If you provide us with the serial number of your amplifier we can provide you with the settings of your amplifier. (Should be in your system documentation as well)

Greetings

Thomas

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Re: AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:51 am

I am using a MEA 1060-AMP, Rev.c. Serial No.065.

Sincerely,
Aviad Hai.

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Re: AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:52 am

Dear Aviad Hai,

we checked the settings of your system. It is as follows:

amplification 1200 times
frequency band 10 hz - 3 Khz

This system was ordered as an AC system and is not changable.
Perhaps it would help to change the settings of the frequency band.
This however depends on your application and will make changes in the hardware necessary (no use in a period of time and cost factor).

Please let us know if this information meets your demands or if we can do more for you.

Best regards

Mirko Schanz

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Re: AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:52 am

How can I change the settings of the frequency band?

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Re: AC / DC filtering

Post  mcs on Tue Jun 10, 2008 2:52 am

Dear Aviad

As we discussed on the phone, it is possible that MCS modifies the amplifier to a different bandwidth and gain, at a very fair price and in a couple of days. If that is of interest for you, please send an e-mail with the exact specifications you need, so that we can send you a concrete pricing.

Best regards, Christine

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