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Control.com topic...
Sensors
Topic: Sensor technologies.
from the Forum department...
ultrasonic level sensors
Posted by rick hawkins on 8 February, 2010 - 11:35 pm
ultrasonic sensor interference
Topic: Sensor technologies.
from the PML or Modbus, one or the other department...
3710 ACM Power Measurement Electric Meter Modbus
Originally posted by Doug on 10 September, 2009 - 11:47 pm
Need modbus rtu card for 3710
New Replies:
Joe, Can you fix one?? What are you offering?...
Topic: Sensor technologies.
from the Senior Project department...
Measuring Smoke
Originally posted by D. Hall on 3 February, 2010 - 12:29 pm
BBQ smoke measurement
New Replies:
Google is your friend, search for: measure smoke Ringelmann and Hellige. Hugo...
Topic: Sensor technologies.
from the out of date & dangerous department...
pressure transducer cable colors
Posted by peter berry on 6 February, 2010 - 6:51 am
need help on a pressure transducer made in England for colours used in the cable need info.
Topic: Sensor technologies.
from the Forum department...
Tachtrol 3
Posted by Sam on 6 February, 2010 - 4:47 am
Working on Tachtrol 3, have a honeywell system is not getting the signals, Tachtrol 3 shows it on the local display.
Topic: Engineering and workplace issues.
from the Forum department...
converting 4-20 mA in (0v to 5v)
Originally posted by shyamala on 3 February, 2010 - 10:58 am
In my project i want to convert 4-20 mA to (0 to 5)v signal
New Replies:
Why not just use a 250 ohm resistor and work from 1V to 5 V? Good luck! Gonzalo Jimenez...
Topic: Sensor technologies.
from the Instrument & Control department...
HCDP value in Daniel GC
Posted by Ady on 5 February, 2010 - 12:02 pm
how can I get the value of HCDP through Daniel GC 2350A using SIM_2251 modbus protocol?
Topic: Sensor technologies.
from the Hot Hot Hot department...
High Temperature Wireless Thermocouple Application
Originally posted by Glassy on 6 February, 2004 - 2:04 pm
Wireless system (811b, a, or g) that can survive extreme temperatures
New Replies:
Are you saying the hot glass will not effect the IR temperature reading - at all? What IR device...
Topic: Sensor technologies.
from the Traffic Management department...
Data Acquistion for weith in motion system
Posted by Michael Saunderson on 4 February, 2010 - 5:42 am
Building a build a weigh in motion system. Need data acquisition board
Topic: Sensor technologies.
from the Forum department...
Flare gas measurement meters
Originally posted by Nicolas D'souza on 15 November, 2009 - 6:37 am
Flare Gas measurement ultrasonic / optical meters
New Replies:
Hi Nicolas, I would suggest Ultrasonic Flowmeter from the Sick brand - Flowsic 100 Flare Gas....
Topic: Sensor technologies.
from the Forum department...
calibration of a dp transmitter
Originally posted by dogehog on 27 January, 2009 - 7:18 pm
Could someone please explain the steps of calibrating a Hart DP transmitter?
New Replies:
And there is a technical white paper on this page: ...
Topic: Sensor technologies.
from the Forum department...
Solenoid valve
Originally posted by instrument on 1 February, 2010 - 5:02 am
difference between normally open and normally closed solenoid valve
New Replies:
I mean relay for double acting piston valve...
As the previous poster said the normal position is without power applied. Usually a 3 port solenoid...
Hi, Normally open solenoid will be in open position if the coil is not energized and will close...
Originally posted by Ayman Kamha on 15 December, 2009 - 2:21 am
Poor performance of butterfly valve when used as flow control tool
New Replies:
Raw guess on my part. The ultrasonic flow meters are probably transit time meters, not...
Ayman, First, I have no explaination for your lack of flow change except for you may want to...
Topic: Sensor technologies.
from the Engineering department...
Fire Proof of Actuator
Originally posted by Bakulesh Vadgama on 4 January, 2010 - 12:53 am
Method of Fire Proof Single Acting Actuator
New Replies:
I dont know the details of the API guidelines you are refering to, but you may want to Google the...
Topic: Engineering and workplace issues.
from the Field Instrumentation department...
Selection of Flow Meter
Originally posted by sanjib on 25 January, 2010 - 5:27 am
What is the basic criteria for selection of Flow meter?
New Replies:
It might help if you advise some process details. Fluid type, density viscosity, is it clean and...
I suggest you to have a look at MPMS5.2 & 3 regarding to the factors which are important on...
Hi Sanjib, The sizing of flow meter like PD Meter & Turbine Flow Meter is based on...
Topic: Sensor technologies.
from the Forum department...
Noise in sensor output
Originally posted by Eddy on 20 January, 2010 - 1:21 am
I want to avoid noise from my sensor output signal..
New Replies:
Hi all This link is an article directly related to your noise problem. It should provide a...
Are you sure its noise being induced in the cable? Have you verified that this is not noise coming...
Probably, you are using an analog (voltage or current) sensor output. Why not to use a sensor with...
You probably need to make a concerted effort to find out where the noise is coming from. If it is...
Topic: Sensor technologies.
from the Forum department...
Level measurement of pump sump
Originally posted by Harri Multanen on 27 January, 2010 - 5:32 am
Can a laser meter be used to measure a liquid level.
New Replies:
I recently applied an ultrasonic level sensor from K-Tek (Model# KMICRO/4W/PVDF/1/X) in a sump...
Topic: Continuous process industries, DCS questions.
from the How did I get THIS job department department...
Load cell output calculation
Originally posted by Bill Newton on 22 January, 2010 - 10:36 am
How do I calculate the millivolt output of a scale with three shear beam load cells?
New Replies:
Allow me to elaborate on my previous inquiry, and thanks for the good information. The excitation...
As well as what Kurt said don't forget you have 3 load cells so each one only has a third of the...
Topic: Sensor technologies.
from the I&C department...
non calibrated pressure switches
Originally posted by h on 26 January, 2010 - 6:49 am
solution for non-calibrated pressure switches which can cause trip?
New Replies:
First of all, why can't they be calibrated on a periodic basis? What prevents their calibration?...
With this information the only thing I can suggest you is to install transmitter and control the...
You have to be joking I cannot think of a process plant in the World that would suffer trips due to...
Topic: Sensor technologies.
from the Process Control department...
Vibration SW Functional Check/Calibration
Originally posted by MAZ on 24 January, 2010 - 3:40 am
Can we do calibration/functional check for vibration switch Model as VS94 Frank W. Murphy.
New Replies:
This type of switch is commonly used for this same type of application. The switch is a very...
Dear CSA thank you for your replay, but i understand that we are not able to know the existing...
A Google search for "VS94 Vibration Switch" yielded this: ...
Topic: Sensor technologies.
from the Automation List department...
Water tank level control
Originally posted by Martin Wulff on 13 November, 2006 - 11:20 pm
I have a underground water tank and a above ground tank at home and want to control the flow of water between them based on levels.
New Replies:
I would use float switches to fix this problem. It is the easiest way to go. www.madisonco.com has...
Posted by Sougata Das on 24 January, 2010 - 11:30 am
Need technical details and protocol guidelines of 2 wire fire sensors
Topic: Sensor technologies.
from the Sensors department...
Which sensor to choose?
Originally posted by Alex on 21 January, 2010 - 10:39 am
Sensor that triggers from explosion.
New Replies:
It's not really possible to give a specific answer to a very general question. However, the more...
Ok. My system is supposed to have a small margin of error. So it's best that the sensor triggers...
Or potentially a seismic probe to pick up the shock wave. What type of explosion are you trying to...
That would probably do it. What about just using an acoustic sensor? Explosions usually make...
It probably needs to be matched to optical emission characteristics of the explosion. I think you...
Topic: Continuous process industries, DCS questions.
from the stop the real nerd department...
Electrical wiring color code standards
Originally posted by Larry Grayson on 3 August, 2004 - 4:05 pm
Looking for color standards for control wiring.
New Replies:
Kudos to Mr. Everhart. For those wishing exact references to NFPA 79, it can be found in Chapter...
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