why we used for range in pnumatic 3-15 psi and current 4-20
ma?
- 11 Answers
- 38252 Views
- Jindal, I also Faced
- E-Mail Answers
Answer Posted / biju antony
The transmitter output stance from what is known as "live zero". This system has
specific advantages :
1. The systems automatically alarms when the signal system becomes inoperative.
2. The output areas is linear ( Ratio of 1 : 5 ).
DEAD ZERO SIGNAL :
The advantage is that it does not have to be biased to true zero. A "Live zero" gives the
computer additional information, so that it can takes appropriate alarm action in case of a
measurement failure, because it can discriminate between a transmitter operating, but
transmitting a zero measurement and a failure, in the signal system.
| Is This Answer Correct ? | 4 Yes | 6 No |
Post New Answer View All Answers
-/5A. What is the meaning and limitations of this in energy meter constant. It is a 3 phase LT Energy Meter. If this Energy Meter is connected through a CT of ratio 200/5 Amps, then what is the multiplying constant and how its will be calculated.
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 is modbus?
how to calibrate electro pneumatic positioner 8013 mil controls ltd ?gsr
what is different between 2,3&4 wire rtd and how much maximum distance using plc to field.
Explain working principle of lvdt?
Linear amplifier.
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
How digital input and digital output 's are working in dcs
I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.
Hook up resistance decade box to temp.transmitter.
how to calculate the total flow in square root
Make Heater Process Logic.
what are the use of belew gear in general ??
what is commisioning procedure,2)what is is the main work in commisioning in the field tx to dcs, plz send me detail
