USB TC-08.. something very wrong, help?!

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mortenx
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USB TC-08.. something very wrong, help?!

Post by mortenx » Fri Jun 08, 2018 12:33 pm

I started logging yesterday,everything was fine about 9 hours and then something happened..
i use k type thermocouples, they are in socket 1,2,3 for measuring about 50 degree soil.
at socket 7,8 are k tyype thermocouples in air for reference,
4,5,6 are empty!
if you see the table , i started measuring 13:30 , and to 22:11 (line107) something went wrong and "empty socket" sensors start showing some random big numbers and other sensors went also out of order and showing some false numbers ..
sesnors 1,2,3 show 5-10 degree less than actualy (50 is real)
empty sockets show 400-500 degree ??!!
sensor in air show 15 degree more than actualy is (15 is real)
tried restart, nothing helps..

is it possible that logger is broken? or what is happening ?

table:
https://docs.google.com/spreadsheets/d/ ... sp=sharing

Martyn
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Re: USB TC-08.. something very wrong, help?!

Post by Martyn » Mon Jun 11, 2018 7:17 am

Can you send in a .picolog file to support@picotech.com so that we can take a look at the full configuration, and a picture so we can see the physical setup.

It does sound like a very unusual issue.
Martyn
Technical Support Manager

mortenx
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Re: USB TC-08.. something very wrong, help?!

Post by mortenx » Mon Jun 11, 2018 8:11 am

channels 4,5,6 are empty, and showing some random big numbers, why ?
usually empty channels shows same as CJ ..
picolog.jpg
pico.jpg

HSi Elektronik AG
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Re: USB TC-08.. something very wrong, help?!

Post by HSi Elektronik AG » Mon Jun 11, 2018 11:48 am

Hello

I have the same problem for 2 weeks now.
The all channels shows 5-10 degree less or higher than actualy is.

I use allways the same configuration.

Can it be fixed?

Martyn
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Re: USB TC-08.. something very wrong, help?!

Post by Martyn » Mon Jun 11, 2018 2:30 pm

If you can send a .picolog file to support@picotech.com then we can take a look at the settings. We will also need to know where the thermocouples are located and what system they are measuring.
Martyn
Technical Support Manager

mortenx
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Re: USB TC-08.. something very wrong, help?!

Post by mortenx » Tue Jun 12, 2018 1:47 pm

what is .picolog file ?

i think there is no special settings ... just logger and k type thermocouples..

what is possible reasons to empty channel showing sometimes big random numbers ?
is it possible that logger is broken now, because all was ok first and no settings was changed and then it happened ?

this is realtime graph from my logger..

sockets 1,2,3,7,8 are k-type termocouples and showing almost acurate results, but something has happend to them also when this "going bad" happend.. now +-10degree acurate.

4,5,6 are empty ! and showing some random numbers why ?
i haven't changed anything..

https://docs.google.com/spreadsheets/d/ ... nteractive

Martyn
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Re: USB TC-08.. something very wrong, help?!

Post by Martyn » Wed Jun 13, 2018 7:58 am

Which version of the PicoLog 6 software you are using?

If you use the Save Button at the top of the PicoLog window it will create a .picolog file. This will allow us to check the setup and also to look more closely at the data, and what is happening when the readings go wrong.

If the thermocouple tips are bare ended, and inserted directly in the soil, then this has the potential to cause issues. A picture of the setup when actually logging would be beneficial, and an indication of the temperature of the environment that the logger itself is located in.
Martyn
Technical Support Manager

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