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Topic: update on PID from ebay (40 lines)
1) From: petzul
When I ordered the PID on ebay I was anxious to get one, and really it 
was a good price for the model I got (much less than half the price 
new). Since then I realized that I could have bought a new one that 
would do the job for less than $40.00 more than I paid. However the one 
I have has 2 LED displays, not one. (got to have bells and whistles)
The model number tag on the side of the PID was illegible, but under 
that tag was another, with a model number on it, indicating this unit 
would be powered by 24V ac/dc. It was incorrect, apparently when options 
are added, the new tag just goes on over the original.
The vendor finally supplied me with what he THOUGHT was the correct 
model number, and it turned out he was right, but at that point who 
would know?
Dwight at TTIGlobal was very helpful in sorting all this out, and I 
still feel I got a good deal. Although before I talked to Dwight all I 
had was a black box with lots of screws on the back!
If you do get a used PID, make sure you check out things with an ohm 
meter and a telephone. The label on it may not be correct.
It turns out that if I wanted to convert this unit to have an SSR driver 
instead of a relay, TTI would convert it for $35.00. Good to know in the 
future if the built in relay ever burns out. Right now I will use it as 
is (budget) and drive an SSR with it the way Dan suggested.
This is a learning process for me, and all of you who responded have 
been very helpful. Thank you.
Respectfully,
PeterZ
Looking forward to an SSR and thermocouple, here in LHC.
petzul wrote:
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