not logic reading of sensors

wayn2010 · Post by **wayn2010** » Wed Dec 10, 2014 9:24 pm

I have a pico system with 3 sensors ! suddenly all sensors gave a not logic reading for example -300 C, 260 C ... etc this situation occurred for two weeks and after that the problem solved automatically and the sensors return to Normal situation so how I can solve the problem ? and find the accurate readingsfor those two weeks ?

Post by **Martyn** » Wed Dec 10, 2014 10:04 pm

Can you give some more details of the setup ? The device, the sensors, the system being monitored and the PC doing the monitoring.

It is unlikely that we will be able to recover the true readings, but we may be able to prevent it happening again.

wayn2010 · Post by **wayn2010** » Sat Dec 13, 2014 10:07 am

thanks for your replay !
I will give you all information that you need tomorrow but what is the reason for this problem ?!

Post by **Martyn** » Sun Dec 14, 2014 8:30 am

It could be noise pickup, grounding issues, power supply problems, or a property of what is being measured. Until I know the answers to the previous questions I can't say exactly what this would be.

wayn2010 · Post by **wayn2010** » Tue Dec 16, 2014 5:43 pm

okay sir !

we have pico EL005
AP 242/030*

Post by **Martyn** » Mon Dec 22, 2014 10:53 am

This is part of the EnviroMon product range, therefore I have moved the topic to the appropriate section.

Post by **alphatemp_ziko** » Mon Dec 22, 2014 12:30 pm

Hi, I assume you are using an EL041 thermocouple converter. I have a few questions:

1) What kind of temperature sensors are you using?
2) How are you physically connecting the temperature sensors?
3) How many temperature sensors do you have?
4) What are you actually measuring?

Best regards

Oscilloscope
comparison chart

OEM & custom applications

Latest news

Documentation

PicoApps

A to Z of PC oscilloscopes

Educational experiments

A to Z of data logging

Application notes

Videos

Test & Measurement Forum