from the Instrumentation department...Triple IR Flame Detector
Please somebody explain the principle of a Triple IR Flame Detector.
from the Instrumentation/ process control department...selection of valve- Ball and pluge
When do we install a plug valve and when a ball valve?
from the 0-500mA to 0-10V department...Signal Conditioning
By Jason on 26 February, 2013 - 7:24 pm -
Sorry to revive a dead thread, but I just came across this as I was looking to do something...
from the Nmodbus department...Reading registers - Socomec Diris
Trying to find correct registers/method to read
By Frye on 26 February, 2013 - 9:15 am -
Hi, i had the same problems to read register from diris. After some mails with Socomec I got it to...
from the help please department...Help for a Design Engineering Student - spray coating forging and forming samples
Help with mechatronic design for a system for spray coating forging and forming samples.
from the DIY department...Low Cost Low Weight Sensor
Looking for a low cost low weight sensor (0.05 - 5 Kilograms)
By Rajesh Parikh on 25 February, 2013 - 9:43 am -
> you can check out the website of Chinese Sensor dot com. Thanks. I checked the site. Seems...
By Hemal on 25 February, 2013 - 12:22 am -
You can easily find a loadcell meeting your requirement and price target. Most Chinese vendors...
from the Instrumentation department...Flowmeter use in Sewage line for gravity flow in underground pipeline
Which flow meter will be applicable for above mentioned subject if tapping is not allowed ?
By Adriaan on 25 February, 2013 - 8:32 am -
I need to measure flow for sewer lines that has gravity flow of 0.6-1.6m/s and the volume of flow...
from the instrumentation department...Using flow transmitter to measure sulfur
How to connect transmitter when measuring sulfur using flow transmitter?
from the I know its wrong department...DP Tx for Interface
Convince my employer that its not the right application
By raj on 20 February, 2013 - 1:43 pm -
Hello brett, The first and foremost thing is that the DPT can be used to measure level of...
from the Steam Sterilisiation department...Flow Control Valve Pressure Drop
Comparing to supplier specs for flowmeter and flow control valve, the steam flows we are getting are very low
Hi, Yes the piping is insulated but the flowmeter and valve were not currently....
> Could there be any process reason i am missing? Is the piping stainless, and if so, is it...
from the Instrumentation department...Interface Level Measurement
How can we measure Interface level measurement?
Hi Sam, I have some questions with regards to using a DP transmitter for Interface level...
from the Instrumentation department...Does the reading of a differential pressure transmitter change if we use a capillary tube?
will the reading of a differential pressure transmitter change if we use a capillary tube?
It depends on whether you have one remote seal on an open tank or two remote seals on a closed tank....
By Remith on 19 February, 2013 - 2:19 am -
if i move above or below, again i have to do calibration ryt. zero elevation/ suppression??...
If you have two remote seals, one at the bottom with another one at the top, then you can move the...
By d- on 18 February, 2013 - 9:59 am -
they work fine in liquid sulfur applications, surface tension and viscosity have no visible effect. ...
By d- on 18 February, 2013 - 7:45 am -
it may change slightly due to the difference in density of the fluid in the capillaries and that in...
By Remith on 18 February, 2013 - 5:37 am -
thanks david, does the capillary effect and the surface tension make any effect on the...
Theoretically, the fluid in the capillary should transmit the pressure the same as tubing. But...
from the Forum department...Small scale SCADA system
Small scale SCADA system
I think, Citect HMI is good choice. By using inbuilt ci-code, you can customize your requirement...
from the Forum department...Range of Pressure Transmitter
Range of Pressure Transmitters
By NVK on 18 February, 2013 - 11:17 pm -
What is meant by turn down ratio and what is the relation between turn down ratio and accuracy???...
from the Forum department...Thermocouple and DCS Readings Different, possible cause?
Possible issue with WX compensation cable to DCS reading of Thermocouple temperature?
I thank you all for your input and will be revisiting the issue this week. But to add some more...
By d- on 15 February, 2013 - 10:23 am -
one other diagnostic is to turn off the dcs compensation, and then check the readings....
By Clint Sexton on 13 February, 2013 - 5:02 pm -
Many good points I read.. Check for grounds on both K leads as close to the probe as possible...
By d- on 13 February, 2013 - 7:41 am -
you've an excellent discussion with many very good points, about the only issue that remains is to...
A 5°C error (maybe greater) is possible with some handheld digital thermocouple thermometers...
T/C 3.7mV DCS 4.1mV T/C terminal head is at 55deg the cable runs through a steel ducting at 50...
By Vijay on 11 February, 2013 - 1:33 am -
Electrical noise due to HT cables... Rans near to thermocouple cable.... mV may Different at...
By d- on 10 February, 2013 - 3:21 pm -
a further question is this. What is the temperature at the terminals you indicate are at high...
By d- on 10 February, 2013 - 3:18 pm -
what are the displayed millivolts at the t/c and what are the displayed millivolts at the dcs...
from the Operations department...Natural gas flow meter summit8800 problem.
Krone Summit8800 natural gas flow meter calculation is erratic due to upstream pressure beyond limit.
from the Forum department...Trouble Communicating with Micro Motion Liquid Density Meter
I could not communicate with my PC when i connected the MM LDM 7835 to my PC
Assuming your software actually talks through a serial port, you need to check - Windows'...
from the puzzled new user department...ROCLINK800 Floboss 107 MODBUS Slave configuration
I am trying to configure the Floboss 107 as a MODBUS Slave with specified register I/O parameters as specific MODBUS addresses.
from the Forum department...Square root extraction in DCS
Square root extraction in DCS
By Sam on 7 February, 2013 - 6:58 am -
You always do the square root extraction in the DCS for the very simple reason that if you have to...
from the Instrumentation department...Flow meter selection for sludge flow
Flow meter selection for sludge flow measurement
By udin Jamaludin on 6 February, 2013 - 6:51 pm -
I suggest you to use ultrasonic flow meter type with min 2 path sensor....
from the Forum department...compensation cable in tc
about compensation cable info reqirements
Thermocouple extension cable is required because it completes the measurement, which is the EMF...
> is it required when transmitter is near to sensor? How near is "near"?...
By d- on 6 February, 2013 - 2:09 pm -
simply because the various junctions are at unknown temperatures, so it depends on your design and...
from the EE department...difference between NPN/PNP Sensors
what is difference?
Hi,. for me to easy remember, Output NPN sensor is Negative (0Volt), and need positive (+24Volt...
from the Forum department...Running Stepper motor to Siemens PLC
I want to run a stepper motor and use 4 solid state relays instead of a motor driver.
By visitor on 5 February, 2013 - 5:42 pm -
What's the type of SSR? I think you may have mixed up some numbers. I think, that 1,2V is the...
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-- Indian proverb