Interested to Buy Any Domain ? << Click Here >> for more details...
What is the meaning of Dry contact and Wet Contact related
to to sensors?
- 5 Answers
- 39357 Views
- Emerson, Google, I also Faced
- E-Mail Answers
Answer Posted / welcome4ujd
dry contact is that the contacts are floating. One example
is the COM, NC and NO contacts of the relays. If no voltage
is connected to them, it is called dry contacts.
Volt-free and dry contact mean the same thing. If a control
system supplier offers a dry contact for you to read as a
status bit, then he is offering to close a contact (relay
or contact output) that is nothing more that a stand-alone
set of contacts with no voltage, current, or anything else
impressed across the contact set. It becomes the user's
responsibility to determine how to sense that contact
closure. Usually you do this by putting a voltage on one
side and sensing the voltage on a return line from the
other side of the contact when it closes. Once you apply
voltage to the contacts, it becomes a wet contact.
You "wet" the contact with a sensible voltage level.
.
| Is This Answer Correct ? | 86 Yes | 7 No |
Post New Answer View All Answers
How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?
How many interlocks at turbine? Plz explain briefly
what is sil (safety integrity level
Can please tell mi about SIOS, PRM, SERVER, and what is the diference between PIN LAN, PCS LAN,APC Server, and please send the Doc if possible for referance,mail id patil_amit17@yahoo.com
please someone tell me what is function of vibration sencer and how many types and how to control viberation.please. my id is jimmykhan077@gmail.com
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
Im having problems with interfase betwen SPI v7.0 and SPPID v5.05. Previous versions of Intools shoul be fixed with SPPIDproj.ocx file. It was necessary to replace this file with one that allows the connection between different versions of SPPID. It is necessary in the current version to do the same?Thanks
How a conductivity sensor & analyzer work at boiler, whats the principle & science is beyond this,How conductivity sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in conductivity analyzer
Explain why plc require in analog input 4-20amp & 0-10 volt?
Hi i am aneesh, done btech in applied electronics & instrumentatiin. And then i took mba in finance & marketing.After that i got placement in finance co and worked there for 3.5 yrs.Now i wanted to come back to engineering job.But without engg experience, i may not able to find an opening.i have done a course related to flow meters and ite calibrations. Kindly suggest where should i try to get a job?
How we connect a instrument with ground, Give brief explanation with help of diagram?
send me HPCL paper
what is diffrance between FF & SMART, explain with difination
Calibration procedure for Electro magnetic Flow meter
what is RTV function in in process control?
