Hi friends, from Aug 4th onwards iam getting spikes for analog inputs in our DCS for a period of 800ms. I throughly checked every thing, finally i found that the DI, DO's from MCC panels shields are terminated in the Signal Earth where Analog Input signals shields are terminated. Is there any problem with this type of termination?. i checked the induction voltage from MCC and getting around 25VAC, please suggest me in this concern. Our plant is 8months old only. DCS is Siemens Make Simatic PCS7, and the transmitters are Yokogawa make.
1 3715If a differential pressure transmitter is calibrated for 0~2500 mmH2o and transmits a 4~20mA dc signal. The transmitter is placed across an orifice plate which is sized to create 2500 mmH2o differential at 5000m3/Hr a) what is the flow rate when the transmitter signal is 13.0mA DC? b) what is the signal output of the transmitter when flow rate is 2500 m3/Hr ?
5 22965Post New Instrumentation Questions
What is difference between ESD and PLC please Explain me clearly.
In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?
what step is taken for ESD ( emergency shut down) in DCS REPLY to hashimka20009@gmail.com
Why upper weighing limit of electronics balance is 90% of the total weighing capacity?
What is rang ability?
what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other
what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.
how to connect transmitter measuring sulfur process? 1-by using long impulse line or 2- by using coated short impulse line
List three types Level Gauges with their working principles
what is the usage of QDV & VOLUME BOOSTER
Hi, Is there any smart plant instrumentation design training institute in Bangalore?
hii my name is sujith...i am preparing for HPVL GET 2010... so ,,,pls help me by send any previous questions or material to my site.....(Msujith_12@in.com) thank q
Difference between 2-Valve Manifolds, 3-Valve Manifolds and 5-Valve Manifolds 3 with diagram
I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.
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?