Alternative method of measuring density (Mathematically)
By Brandon on 28 July, 2016 - 11:09 am
You could use microwave to measure density or consistency. I know Toshiba has some products that...
on 27 July, 2016 - 9:13 am
hi thank you for your reply, well, I am trying to measure the density of sludge in pipeline (the...
Communications Test Rig for Common Protocols
Looking to purchase or create a communication Test Rig for common protocols
By ICPRobert on 28 July, 2016 - 12:33 pm
We have new HART Slave device simulation software which can used with our converters (USB to Hart,...
Troubleshooting Blower Shutdown
I have a bank of 12 blowers that all shut down every other Tuesday morning at about 7AM. when they shut down there is no alarm and they don't need to be reset to restart. I am lost for how to continue troubleshooting.
By W.L. Mostia on 26 July, 2016 - 6:37 pm
Two things come to mind. The first is that you are seeing a power dip (below the motor starter's...
By Mike on 26 July, 2016 - 1:37 pm
Is there any chance of network storm? Alternatively are IEDs connected to network or...
Mark VI IONet N-Tron Network switch failures
Mark VI IONet N-Tron Network switches keep on failing, RCA needed
By Badr on 21 July, 2016 - 9:39 am
Hello all, GE sent us a feedback few days ago, they said that the issue of N-tron switches bad...
By Badr on 14 July, 2016 - 4:09 am
CSA, I may have exaggerated a bit when I said the switches were grilled. But when we opened a...
By Badr on 11 July, 2016 - 10:46 am
CSA, Yes the IO packs are placed in a tall vertical columns. the switches are being placed in...
Pressure gauge needs ATEX certification ?
Mechanical gauges need ATEX
By AN Neel on 21 July, 2016 - 4:51 am
Yes Agreed, but what is the reason? as level gauge has not any potential source of ignition. ...
Medium Voltage VFD Drives for Sugar Mills and Cement Mills
I am working on the projects about MV VFD drives for sugar mills and cement mill motor control, for energy saving and process reform.
Correct DP Transmitter Isolation Procedure
What is the correct procedure for preparing a differential pressure transmitter for live calibration?
on 8 July, 2016 - 6:52 pm
>> firstly open the equalization valve before isolating the HP and LP >> line from the...
Difference of Safety Category 2 and 3
Instrumentation and Control
Posted by OLASENI WAHAB on 24 June, 2016 - 7:19 am
want to know about valves and their usage.
on 9 July, 2016 - 12:25 pm
If it's pneumatic or hydraulic then the advantages over spring return actuator is that even if the...
I want to select a suitable flow meter for measuring water and process solvents with remote indication.
on 9 July, 2016 - 11:14 am
Turbine flowmeters and mag flowmeters will work great unless there is sludge or something like that...
Is it a bad idea to run a current loop through relay contacts?
on 9 July, 2016 - 10:56 am
Pepperl Fuchs and Phoenix contact manufactures switching devices specifically for this sort of...
By Steve Myres on 4 July, 2016 - 3:28 pm
An ABB ACS-550 for example, can be set not to trip on loss of reference input. Set that way, the...
By Bob Peterson on 3 July, 2016 - 11:40 pm
I have used relay contacts in analog output circuits just to make sure the analog output turned off...
DC supply problem at power plant
on 9 July, 2016 - 8:29 am
Thank you for your reply. Yes, we have also thought of connecting a recorder.A nd Sir you are...
pressure and temp compensation formula for the mass flow calculation of superheated steam
wrong reading of flow of superheated steam
on 8 July, 2016 - 5:27 pm
Compensated steam flow in tph =(indicated steam flow in tph) * square root of ((P1 +1.029) *...
Radar type LT vs. Ultrasonic LT
Posted by Mihir Ramkrishna on 31 July, 2006 - 9:26 am
Difference between Ultrasonic Level transmitter & Radar Type Level transmitter.
Is Safety relay controlling multiple control relays advisable?
We have rosemount 3051 dp cells ranged 0 mbar to 125 mbar. I have a query about when to use zero and span.
MARK IV Controller Power Supply
Looking for a supplier of a MARK IV controller power supply
on 30 June, 2016 - 6:00 pm
Genersi, There are two advertisers here on control.com which sell surplus and refurbished Mark...
Ifix 5.8 Poll Data from MBE Driver Unable to Update Database
Ifix 5.8 database cannot poll data from MBE driver that shares the same Modbus Ethernet data source
By DnA on 30 June, 2016 - 5:11 pm
Node name shouldn't matter here I think. MBE driver polls the modbus unit at the slower rate even...
OSI Pi versus Aspen Info Plus 21
Chemical company with batch processes has to decide if they buy Aspen tech or OSI.
By Jeff Knepper on 30 June, 2016 - 2:47 pm
Believe it or not Fredrik, the 1,000 points that you are monitoring at 60 second intervals will...
Is there a way to determine genuine Klinger gauge glasses?