Re: Adding a New Meter to TC Gauge Controlelr
Posted: Sun Feb 19, 2017 3:28 pm
This is exactly the scale that is on my meter. You seem to have done such a fine job on testing everything there is in the box previously, so I have little doubt an issue exists there.
The new meter has a polarity just like the old one. Are you sure you got it right? Try swapping the leads. Battery in to proper polarity? Can you adjust the TC tube current at all and see meter deflection. What resistance do you have in parallel.... if this is a 100ua meter? Does your replacement meter really read 100ua or 100ma? It must read 100ua or 200ua if you got an exact replacement.
Was there a resistor in series or parallel with the with the original defective meter?
You really need to check all this out and report fully. I bet the fix is simple either throught error or mis-connection. This controller is abysmally simple.
Richard
The new meter has a polarity just like the old one. Are you sure you got it right? Try swapping the leads. Battery in to proper polarity? Can you adjust the TC tube current at all and see meter deflection. What resistance do you have in parallel.... if this is a 100ua meter? Does your replacement meter really read 100ua or 100ma? It must read 100ua or 200ua if you got an exact replacement.
Was there a resistor in series or parallel with the with the original defective meter?
You really need to check all this out and report fully. I bet the fix is simple either throught error or mis-connection. This controller is abysmally simple.
Richard