USB TC08 Problem

Post any questions you may have about our current range of USB data loggers
Post Reply
mortenx
Newbie
Posts: 0
Joined: Wed Nov 06, 2013 11:45 am

USB TC08 Problem

Post by mortenx »

USB TC08 - I have only one thermocouple in channel 1 , other are empty but I see ~200 degree numbers in other channels , why so?

Are the channels linked?

Is it possible that this one thermocouple is broken somehow and affecting others?
It is 20 m long thermocouple wire.

When all channels are empty then they all show cold junction temp.
Attachments
TC08.jpg

Martyn
Site Admin
Site Admin
Posts: 4491
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

Re: USB TC08 Problem

Post by Martyn »

If you move the thermocouple to different channels and the effect follows then I would be looking at the thermocouple. Is it touching a conducting surface ? if so just lift it off so that it is in free air, and see if the unconnected channels show the cold junction temp. If this cures the issue then you will need to eklectrically isolate the thermocouple from the surface you are measuring using varnish or tape.
Martyn
Technical Support Manager

Post Reply