Which Signal hart communicator work? If there any signal change when hart connect while transmitter in line ?
KOC,
922Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
1045how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
KNPC,
836while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?
1337Post New Instrumentation Questions
Full form of KKS when use DCS.
can we create an interrupt in plc through scada?
what is the different between deflection type measurement and null type measurement in RTD?
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
How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)
What are different type of instrument cable
What is the use of gauge?
on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon
What are de-saturators?
POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?
Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.
Questions on flow meters,few questions on HART protocol,
How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?
How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.
TEMPERATURE VARIATION FOR FREQUENTLY.