RTD P1000 wire was picking noise and is giving unsuitable reading

You don't give enough context.

How are  you using the RTD - 2 wire, 3 wire or 4 wire connection.

How are you conditioning and measuring the signal (description and schematics, maybe software explanation as well).

What is the environment (thermal, electrical  etc) and how long are the cables.

What noise level are you looking for in your system (in equivalent degrees K)

Are there any cost constraints.

MK

RTD- 2 wire

measurement - thermal.

used moving average but still not reliable. looking for something better filter.

You have difficulty with solving problems because you do not have a good scientific approach.

First you must define the problem in a complete and an-ambiguous way.

It is IMPOSSIBLE to solve an inadequately defined problem.

I asked you several questions about your noise problem and you have not answered even one of them.

I asked:

How are you conditioning and measuring the signal (description and schematics, maybe software explanation as well).

You replied:

used moving average but still not reliable. looking for something better filter.

But this is not an adequate description

I was expecting something like:

Buffering and amplifying the signal with (schematic with values) having a gain of  X and a bandwidth of (Y)

Sampling with a  12 bit ADC (type specified here) at Z Hz.

Then processed by moving average filter averaging over N samples.

You also need to specify the noise that is causing you problems:

The data is extracted from the filter every Mth sample and the peak to peak noise of the extracted filtered data is P samples.

This is equivalent to K degrees.

You will need to use a scope or similar instrument to measure the spectrum and amplitude of the noise at the input of the ADC.

If you present your problem as I've outlined above I will be able to help you and happy to do so.

If you won't make the effort then neither will I.

MK

You have difficulty with solving problems because you do not have a good scientific approach.

First you must define the problem in a complete and an-ambiguous way.

It is IMPOSSIBLE to solve an inadequately defined problem.

I asked you several questions about your noise problem and you have not answered even one of them.

I asked:

How are you conditioning and measuring the signal (description and schematics, maybe software explanation as well).

You replied:

used moving average but still not reliable. looking for something better filter.

But this is not an adequate description

I was expecting something like:

Buffering and amplifying the signal with (schematic with values) having a gain of  X and a bandwidth of (Y)

Sampling with a  12 bit ADC (type specified here) at Z Hz.

Then processed by moving average filter averaging over N samples.

You also need to specify the noise that is causing you problems:

The data is extracted from the filter every Mth sample and the peak to peak noise of the extracted filtered data is P samples.

This is equivalent to K degrees.

You will need to use a scope or similar instrument to measure the spectrum and amplitude of the noise at the input of the ADC.

If you present your problem as I've outlined above I will be able to help you and happy to do so.

If you won't make the effort then neither will I.

MK