Greetings to all from down under,
And the same to you!
Is there a basic controller circut that I could build and use in
conjunction with a seperate pyrometer that would allow me to make
use of this equiptment? Unfortunately I am unable to afford a
digital controller as yet.
How about analog? I've recently acquired an old 1/3 cu ft burnout
kiln and was only interested in a simple temperature readout with a
solenoid and simmerstat. It was used as a pottery kiln and rated at
4.5KW but I only needed it to reach 750 degC (not 1200C) so re-wired
the elements appropriately, using a certain length (approx 17m
overall) of 1.2mm resistance wire, and wound them up. The overall
current is under 10amps at 230v mains and 1.8KW so that was nice. I
fitted an analog pyrometer and j-type probe both of which I bought
for $NZ150. They are hard to get hold of though.
It's a basic setup and offers no ramp-up and ramp-down at precise
rates, but if you want to be able to do that you'd need to go
B r i a n A d a m
e y e g l a s s e s j e w e l l e r y
Auckland NEW ZEALAND