What means zero and span in transmitter callibration.
Answer Posted / ahmed hamdy
As mentioned above
span is the difference between URV and LRV
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Is there any relation between Artificial Intelligence and Instrumentation?
why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.
What is zero elevation and zero suppression?
Which type of pressure can be measured by primary elements?
what is metal of piston ring
how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?
how to calculate signal cable sizing? and multipair cable sizing??explain in brief?
How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?
can you provide me full detail about instrumentation in ONGC??
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
(1) In turbine, what does term CDP, NI, NH, HSSOC, means. (2) What is the purpose of LO overhead tank in turbines.(3) An equipment is certified for EEX, IA, IIC,T6, what do you under stand by this.(4) what is SURGE, and how it is prevented, what is the purpose of bypass valve across AS valve.(5) Give 2 application of quartz crystal used for process parameter measurement.(6) what is meant by cold float of compressor shaft. (7) state four different types of flow measurement. For gas flow measurement mmscfd is the common unit. Expand the unit and specify significance of word S in the unit.(8) what is meant by Gap voltage, in vibration measurement. Normally how much Gap voltage is set and state the reason.(9) what will the new flow factor if D/P transmitter is Re-Ranged from 25” wc to 50” wc.(10) what is the usage of QDV & Volume booster.
what is interface level and how it is calibrate?
Describe a time when you anticipated potential problems and developed preventive measures.
what is a vortex flow meter,mass flow meter and electromagnetic flow meter.particular use of this.means in which condition particular meter is used.
Explain the difference between plc and cnc?