in any transimitter (flow/level) there are three terminals for supply& test (+,-,+)in two wire,24VDC given to Tx.,but how 4-20 ma signal travels thru same wire (as it is for 24VDC input supply)?
1 4312for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}
L&T,
1 7891Is wet leg type system nessesary to measure water level of steam DRUM? How the transmitter is calibrated to measure this level?
1649please suggest me, how can i change the display setting in term of unit in place of % of Honeywell pressure transmitter ST3000S100?
2 3861Condensation within a sight glass? Would you expect there to be more problems when using a sight glass if there is condensation on the inside or the outside of the glass, and why?
1 3126Post New Instrumentation Questions
Specify ideal accuracy of flow element like orifice plate, Ventury, Annubar. Ultrasonic flow meter etc.
what is Best Among SINK Or SOURCE Type Design In Digital Signal, Either Iput Or Output? WHY?Can any one..
How to fix back the valve actuator stem
How addressable fire systems work? Pl. send details with architect.(Loop), also send details regarding Gas system. Pl. help me.Thanks
What is difference between Ionization heat and bimetallic heat
in which principle pressure tx,level tx ,flow tx,temp tx ,control valve works?
What are different types of control valves?
What is instrumentation technologists and mechanics?
Explain Gas Turbine startup and shutdown sequences
Draw block digram for well head from well to shipping pump?
What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus
Q-Explain the different load conditions that will produced different offset which may or may not be acceptable to thhe control function
Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?
Define cryogenic?
how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)
