Answer Posted / parag

First of all transmitter is a transducer which convert
input parameter value to 4-20 mA signal that can be send to
long distance like Control room DCS, PLC,...
there are different priciples on which different
transmitter works for measuring either level, flow, or
pressure.
We can use pressure transmitter to measure level and flow.
Differential Pressure transmittter works on capacitance
principle.
Differential pressure transmitter can be used to measure
pressure across any tank, vessel, pump to know the pressure
difference between its upstream and downstream.
Same Differential pressure transmitter can be used to
measure flow if we use across upsteam and downstream of
orifice with square root as flow is directly praportional
to square root of pressure difference across the
restriction.
Even we can use differential pressure transmitter to
measure level as Delta pressure is equal to height of the
tank multiplied by density of the fluid inside.

How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

1586

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Yokogawa CENTUMVP R6.09 unable to download to Engineering Station with ExaOPC R3.75 The issue is when I try to download the common project section to the Engineering Station (STN) from the HIS in System View, it is unable to connect. The error displayed is: WARNING: Could not connect to equalize destination. (7001) Retrying. Number of retries = 0/1 ERROR: LdXopsLoadMain: connect error 10060 ERROR: Processing terminated due to connection error. (7002) Equalization end with errors. STN0149 ---- ERROR = 2 WARNING = 1 ---- Background: >Updated the ExaOPC software on the STN from 3.60 to 3.75 >STN operating system is Windows Server 2008 R2 >HIS operating system is Windows Server 2016 Stanard Solutions attempted include: >Ensuring all IP addresses are correct and all networked devices can be pinged. >The ability to ping a device using its host name from another device ( from HIS) >Ensure both devices firewalls are disabled. >The antivirus installed on the STN is disabled. >Ensuring both devices are within the same workgroup. >Added both devices to each other's Host and LMHost files. >Running IT Security tool after changing any administrative settings.

1642

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What is heating effect?

1886

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What is the use of control cable?

691

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Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com

1458

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1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?

1785

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What is the advantage of using locally fabricated hook ups over Pre fabricated hook ups in process instrumentation?

1596

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I want to apply for the universities in US,but i got the GRE score of (650+300=950)TOEFL 69/120.Is this score sufficient for applying universities please i am married i need to go to US because my husband didn't get H1 yet.please send me suggestion

1456

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what is span value and zero ? and how set ?

1073

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our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

1673

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What is the use of temperature compensation?

1557

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when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?

1314

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I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?

1699

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How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?

2292

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How to fix back the valve actuator stem

1620

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