Control.com - Nerds in Control
Steam flow through a valve
What is the error if you use a Tx cable with a K thermocouple?
New Replies:
> Just how much extension wire that needs to be replaced is involved here?
considering this...
Thanks CWW for the reply,
>The two ends are unlikely to be at the same temperature in the...
ok forum, one more chance :)
let's make this whole thing a k type thermocouple.
the actual...
oh, my mistake.
if all the junctions get to the same temperature, it would just reduce to a t...
@ Roger, you are correct but i suppose you have misunderstood me. by treating as a single unit and...
more or less the same thing that i said in my last post, has already been said by Bruce Durdle in...
an alternative (might be of help).
why bother about individual junctions, you have a...
Looking for information about hot and cold grounds on a pcb
How do twisted pair wires minimize interference?
What is double grounding? Can double grounding of a system be helpful?
no square root when using orifice plate with DP to measure flow of gases
New Replies:
thank you otised,
the transmitter concerned didn't have the measurement for temperature. neither...
Magnetic levitation controller
New Replies:
>I assume my constants "were" tuned incorrectly because I have not a good of tuning...
interesting project!
as explained by Leon,
1. what is the range of the sensor of lesser...
embedded application: PID driven valve.
New Replies:
more than 2 years have passed since the question and i don't know if my reply is of any relevance.
...
making sense of process oscillations
New Replies:
thank you rob,
i think you got me wrong. most of the questions that i have put in this forum...
Rob, please see if I am correct (otherwise I might be directed to this very thread in future :), as...
thank you again rob,
>So if you make a step change in the setpoint and you still get the...
thankyou rob and bruno,
>You already know what link I would otherwise post for you.<
...
kindly read the question as-
consider the situation,
You see a loop badly tuned, its...
torque at low speed
New Replies:
thanks Richard,
as pointed out by you, 10 hz is/was not generally a problem for vfd.
in my...
Questions about ABB AC motor drive - ACS550
maximum hp motor for dol starting with given kva transformer
New Replies:
dear phil corso and william hinton,
thanks
the basic idea i started out with is, the maximum hp...
the summary (the one liner) "maximum hp motor for dol starting with given kva...
looking for a new software languages
New Replies:
again i need to clarify my last statement (this is becoming usual now), i am not doing all the...
after this thread, i started out with c#. actually, presently i am looking at .net framework, clr....
ah, the world disapproves my verdict!
actually, about one-n-a-half years ago, i used to program...
Criteria to evaluate control loop performance
New Replies:
i need to clarify my last statement, though its not needed actually and its well understood but...
thanks
well, as it goes, i currently don't have the luxury of expertune. i have got regular dcs...
filter in control system
negative i and d terms application
New Replies:
rob,
yes that's correct, negative time as such has no meaning. but if we look at the i term...
Testing an in circuit scr that is attached to a heat sink
New Replies:
thanks phil,
i will send you a little more description of the adjoining circuitry too. let me...
Additional control inputs on pump control panel
New Replies:
> the ability to control this panel with input from a wireless level control system
what is...
Which to use, star or delta, when running a motor without vfd for testing?
New Replies:
@ roy, i hope the situation is clear by now....
actually, in part its a situation that occured few days back. we had starting problems, and in part...
dear phil corso & william hinton,
thanks & regards,
@ phil, thank you for your...
by the way, this is not a contest, its to seek help. and i don't know the answer :).....
cv downstream to sensor
New Replies:
control valve
lets put it this way, say we are doing simple level control, then the level...
looking for a underground water level sensor
New Replies:
thanks, all points well taken.
@d, >90% of the time you'll get water...
yes, no risks...
neutral and ground short adverse effects
New Replies:
hi steve,
do you mean at that point line and neutral get interchanged? ok, if i make sure that...
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2013 Nerds in Control, LLC. All rights reserved.
Users of this site are benefiting from open source technologies, including PHP, MySQL and Apache. Be happy.
Fortune
Weinberg's Principle:
An expert is a person who avoids the small errors while
sweeping on to the grand fallacy.
