Control.com - Nerds in Control
Reading Type K thermocouple from 25 m distance
New Replies:
probably you won't have signal loses but you may have EM noise coming from outside the cable, to...
By SARADHI on 10 August, 2009 - 4:13 am -
No problem, if you use compensate cables for 25 meters.
...
Flow measurement of highly viscous material as line is over sized and this velocity is low,thereby decreasing accuracy
Problem Selecting Mass flowmeter size for measuring thick liquid
New Replies:
If you install 1" flowmeter not only the pressure drop would be significant but also the...
Question around encoder principles
New Replies:
By James Ingraham on 11 August, 2009 - 10:15 am -
On the 5V/24V thing. You have to pay attention to input AND output. Some encoders take 5V and...
By Brian Beal on 11 August, 2009 - 6:22 am -
Just to add what has been posted. The voltage rating means input and output. Many encoders are...
By William Sturm on 3 August, 2009 - 12:49 pm -
I believe that the 24VDC is just the supply voltage, I have always used 5 VDC encoders. Outputs...
By M Griffin on 3 August, 2009 - 12:04 pm -
> 5V and 24 V encoder. Is it means the encoder supply? or it is the maximum Amplitude level of...
Thermocouple in high pressure reactor starts to fluctuate in the reading as it reaches 750C.
New Replies:
By Brian Beal on 11 August, 2009 - 6:09 am -
What kind of instrument are you using to read the t/c? Is it single or multiple channel? I have...
By Randy Bryson on 10 August, 2009 - 8:22 pm -
Type J is terrible for use in this application. As you can see, this person has a process at least...
I belive that you could use a thermowell to protect the thermocouple and reading against the high...
How to make a water level sensor for water tank
New Replies:
By wboyes on 10 August, 2009 - 10:56 am -
The easiest way to make a very inexpensive water level sensor is to get a pulley, a toilet bowl...
By Roy Matson on 10 August, 2009 - 10:45 am -
Hi,
If you have access to a connection at the bottom you might try a pressure transducer from a...
By curt wuollet on 10 August, 2009 - 7:07 am -
This sounds like a job for a sight glass. Just get some plastic tubing and attach to the outlet and...
7FA Tripping on Low Hyd. Trip Oil pressure
New Replies:
The Device Summary lists the pressure that the Dump Valves operate at, and it's usually about 20...
Dear Genprospec,
it sounds as if your trip oil pressure is indeed low, have you verified it at...
Mechanical gauges need ATEX
New Replies:
By david mertens on 5 August, 2009 - 5:52 am -
The differences in ATEX
Compared to the "Old Concept", ATEX also considers the...
By papaya on 4 August, 2009 - 11:12 pm -
I think as long as it does not invlove electrical, like transmitter etc, no ATEX is required.
If...
Dont understand pressure compensation requirement
New Replies:
Pressure will also change....
Let's start at the beginning.
Let's assume you want to know the volume flow rate. The instrument...
Theoritically if the Pressure and Temperature remain constant, Pressure and Temperature can be...
By anynomous on 30 July, 2009 - 7:10 am -
Boyle's LAW -
PV=nRT
enjoy...
By Chris on 24 July, 2009 - 3:44 pm -
so volumetric flow meters don't require temperature/pressure compensation, only when the pressure...
By Roy Matson on 24 July, 2009 - 11:52 am -
Density also changes with pressure.
...
Loadcell Summing or Parallel wiring.
I'd like to create system which can approximate number of available space in the parking for people from the outside of the company :-).
New Replies:
By Roy Matson on 31 July, 2009 - 5:44 am -
Seems like your boss has given you a "make work project"
A small PLC would handle...
Check the web...there are commercial off the self products that already perform this function....
from the instrumentation department...
Testing multimeter for good/bad heat detectors (detect a fire) rate of risefire alarm system is always giving a in trouble signal
New Replies:
You can use temperature calibrator to test the fire detector. we usually use jofra itc-650 to test...
How to map variable length data to holding registers?
New Replies:
By M Griffin on 27 July, 2009 - 4:12 pm -
It's always good to hear feedback. The feedback helps other people who are following the discussion...
Now, that took me some time! But I have defined the registers (and am very glad that's finally...
By M Griffin on 19 July, 2009 - 3:14 am -
I will start off by saying that what would probably help a lot is to sit down and imagine yourself...
Thermocouple signal varies and value of temprature not satble
Calibration procedure for high capacity tanks
New Replies:
By Sam on 24 July, 2009 - 8:12 pm -
Use one indicator with each load cell. So if you have 4 load cells, there will be 4 indicators....
By Al on 24 July, 2009 - 12:18 pm -
Also remember that errors accumulate, so if you have 50 10 Ton test weights each with an accuracy...
By Roy Matson on 24 July, 2009 - 11:28 am -
Another method sometimes used is to fill the bin then run the product into a truck which you then...
By anynomous on 24 July, 2009 - 8:11 am -
Than consider this as Pre-bid evaluation of your company or you...
The client somewhat rightfully states that i should answer that question, since weighing is my core...
By anynomous on 23 July, 2009 - 12:51 am -
Hemal
first question you should ask your client is
How are you going to calibrate [not the...
No, this for an iron pellet plant. 17 bins for mixed iron ore, 2 for crushed ore, 2 for pellets, 2...
Catalyst level measurement in catalyst hopper
New Replies:
By R K Gupta on 24 July, 2009 - 6:25 am -
I want to know the contact details of Major vendors like magnetrol, K-tek, seojin instech etc,...
How do we get measurement uncertainty if the measurement comes from the differential of others (two flow meters)
New Replies:
By Rohit Chandak on 23 July, 2009 - 1:33 pm -
Use a portable ultrasonic to check the uncertainity on periodic basis or use multichannel...
Can anyone advise where to purchase a BS&W meter.
New Replies:
By David King on 19 July, 2009 - 10:18 pm -
Although this question was asked some time ago I stumbled on it and believe my input may be...
How to select load cell?
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 © 1999-2010 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
Due to a shortage of devoted followers, the production of great leaders
has been discontinued.
