Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

why we use 24v dc in instrument rahter than 230vac????

Answer Posted / visakh ctjv

all loop powered transmitters are capable of
withstanding 10 t0 36v dc ...as per the process requirement
it will vary.. insome industries they are using 12v dc
also.. 24 vdc is used because as per ISA there are some
standards wich will match other process reqirement like
24vdc relays for digital control also wecan use 24dc to
energize tis relays

Is This Answer Correct ?    22 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what would be the minimum flow rate that we can measure on rotameter..?

2145


how the arrangement of equipments done in control room

2055


Manipulation of dead wt. tester double piston type.

2112


what is IEC code in cables & how to selecting cables?

1893


What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?

2036


what is sil (safety integrity level

2790


Explain Gas Turbine startup and shutdown sequences

4385


What is the basic difference between Modbus and CAN Open Protocols

6502


what is the difference between magnetic flow meter and mass flowmeter

1596


Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor

2191


What is the GK Value in Flowmeter?

3770


Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.

1924


Explain the combusion chamber

2076


selection of the zener barrier for the hazardeous area zone 0

2310


Why 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?

1566