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Control.com member...
Member Information and Posts by akhait
Topic: Engineering and workplace issues.
from the Instrumentation Department department...
Multihole orifice plate
Posted by Asok Kumar Hait on 6 May, 2014 - 11:20 am
User experience in use of multihole (conditioning) orifice plate
Topic: Sensor technologies.
from the Very Low Pressure department...
Panel Pressure Transmitter
Originally posted by Paul Ganter on 17 March, 2014 - 2:37 am
I need to measure a very low pressure, not a DP.
New Replies:
Why you want the transmitter to be installed inside the panel? You can install the transmitter...
Topic: Engineering and workplace issues.
from the Instrument department...
Generic pressure transmitter in SIL determination
Originally posted by Ricardo Almarza on 14 August, 2009 - 2:59 pm
Doubts about "generic" instrument
New Replies:
Adding lately my thoughts and experience on this interesting topic: No, for a SIL loop you don't...
Topic: Continuous process industries, DCS questions.
from the Instrument department...
Pressure control valve
Originally posted by Mic on 16 January, 2014 - 8:26 am
Pressure control valve works well when isolated, but after opening does not close to 0%
New Replies:
Agree with d. Most likely cause is the undersizing of the actuator. Try using a booster in...
Topic: Engineering and workplace issues.
from the Instrumentation Department department...
Failure of blowdown valves
Posted by Asok Kumar Hait on 27 September, 2013 - 11:37 am
Suitable type of shutdown valve
Topic: Engineering and workplace issues.
from the Instrumentation department...
Process connection for Hastelloy C DP transmitter
Originally posted by Rahman on 23 September, 2013 - 5:20 am
Process connection accessories required for DP Transmitters for Acid tanks
New Replies:
Hello, Your problem is to select proper impulse tube material. You haven't given enough...
Topic: Engineering and workplace issues.
from the Forum department...
Junction Boxes for zone 0
Originally posted by Ibrahim Abdelmohsen on 27 March, 2013 - 7:16 am
what is the minimum requirements for junction box in zone 0?
New Replies:
1st of all you haven't indicated correctly the hazardous rating of the area where the junction box...
Topic: Engineering and workplace issues.
from the Instrumentation Department department...
Siemens Gas Turbine cable gland issue
Posted by Asok Kumar Hait on 30 March, 2013 - 11:22 am
Siemens gas turbine cable gland issue
Topic: Sensor technologies.
from the Forum department...
Thermowell Length for best accuracy
Originally posted by GAFOOR on 11 January, 2013 - 7:31 am
What is the Thermowell immersion length required for best accuracy?
New Replies:
The error in the temperature measurement happens in such cases due to a well know phenomena called...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Emergency shut down system for process plant
Originally posted by nirav on 19 December, 2012 - 1:17 am
As per my knowledge for ESD system is always implemented through PLC is there any particular safety reasons for that?
New Replies:
Hello Dick, You are correct. Yes, according to the manufacturer's claim in ABB 800, the same...
Topic: Continuous process industries, DCS questions.
from the Contrl system department...
Interposing relay Panel
Originally posted by Ashish soni on 16 October, 2011 - 3:18 am
Do we need two type of Interposing relays in Relay panel for controlling Motor & getting feedback?
New Replies:
Hello, I couldn't agree with your comment on the DCS/PLC DO. Please note that 24 V DC...
Topic: Engineering and workplace issues.
from the Automation List department...
EEx ia vs EEx [ia] vs [EEx ia]
Originally posted by Rashid on 19 November, 2012 - 10:32 am
EEx ia and EEx [ia] and [EEx ia] and isolation barrier
New Replies:
Rashid, You need to be little bit careful with this instrument. There are various parts of the...
Topic: Engineering and workplace issues.
from the Forum department...
displacer type I/F level
Originally posted by ss on 21 December, 2012 - 6:09 pm
displacer type I/F level Measurement
New Replies:
Hello, If you want to calibrate a displacer type interface level measuring instrument at field...
Topic: Continuous process industries, DCS questions.
from the maintenance department...
mass flow controller
Originally posted by paru on 24 December, 2012 - 3:01 am
Where should we use mass flow controller ?
New Replies:
You haven't given sufficient details to answer your question correctly. In which industry you are...
Topic: Sensor technologies.
from the Forum department...
Interface transmitter displacer type
Originally posted by khashayar on 6 November, 2012 - 11:44 pm
interface measuring
New Replies:
When you are measuring interface level with displacer, 1st consideration is make sure that 100% of...
Originally posted by Justin on 18 April, 2012 - 7:10 am
Can a Gauge Pressure Transmitter be recalibrated for vacuum pressure even if its not absolute type categorised?
New Replies:
For the gauge pressure transmitter both the ports are open to the atmosphere. If you are connecting...
Topic: Engineering and workplace issues.
from the commissioning department...
electrostatic treater interfce level control
Originally posted by roberto arciniega on 12 April, 2012 - 8:06 am
We have a Ktek Capacitance type level transmitter to measure the interface and it is part of a LIC and LCV. We have checked the calibration and it is ok. In a current normal operation crude is flowing along with the water on the water line.
New Replies:
Roberto, Most probably the problem is with the level transmitter probe. I am working on a FPSO...
Topic: PLCs and related questions.
from the PLC department...
Digital output card - PLC
Originally posted by sami on 30 November, 2011 - 5:10 pm
PLC digital output card for Solenoid valves
New Replies:
Sami, You are correct, the most important point to check if the output power per channel has the...
Topic: Engineering and workplace issues.
from the Forum department...
Maximun Shutoff Differential in a valve
Originally posted by Biju on 31 May, 2011 - 3:59 am
Significance of Maximum Delta P shut off for valves
New Replies:
Maximum shut off DP is vital to size the actuator of the valve. If the DP is less, the actuator...
Posted by Asok Kumar Hait on 29 January, 2011 - 9:51 am
How to connect a 3-wire sink transmitter to Siemens PCS-7 safety PLC?
Topic: Application Questions and Problems
from the Confused in simple issues department...
Basic difference between Zone-2 and Zone-1 equipment
Originally posted by A.K.Hait on 12 July, 2007 - 10:42 pm
Exd/Exe equipment for Zone-2 and Zone-1
New Replies:
I will try to give you some insight into the subject. Since you are working in a power plant...
Topic: Engineering and workplace issues.
from the Forum department...
Required SIL for F&G system
Originally posted by vahid on 28 September, 2010 - 4:33 am
Does anyone have experience about F&G detectors which are SIL3?
New Replies:
You haven't given enough information to give you proper guidance. However, pl. note the following: ...
Topic: Communications systems and equipment.
from the Automation department...
DCS Shutdown signals
Originally posted by khanna on 30 June, 2009 - 5:37 am
Shutdown logic signal between two DCS systems
New Replies:
In my experience I haven't come across any standards which says that shutdown through serial link...
Topic: Engineering and workplace issues.
from the Offshore Oil & Gas Safety department...
Offshore Gas detectors' voting
Posted by Ashok Kumar Hait on 22 June, 2009 - 2:16 am
Offshore hydrocarbon gas detectors' voting criteria
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