Answer / jigaranadkat

HART : Highway Addressable Remote Transducer

This is a communication protocol in which all information related to transmitter / instrument travels in the same pair of power loop of transmitter.

This information is transmitted by superimposing HART signal (AC) on 4-20mA DC signal. Hence HART DC value remains zero and it will not impact 4-20mA measurement.

The digital HART information is transmitted by two different signal 1200 Hz (Represented as 1) and 2200 Hz(Represents 0) in digital system.

Since transmitter are Highway Addressable, it is possible to configure transmitter remotely through a management system (e.g. AMS or PRM).

Hope this will help.

Regards,
Jigar Anadkat

Answer / mohamedhega

Hart stands for Highway addressable remote transmitter.
signals are in form of mA (4-20) current loop
so that it is not effected by wire resistance.
but it is slow with respect to other types like fieldbus ff ,profibus and modbus.

Answer / jigaranadkat

HART : Highway Addressable Remote Transducer

This is a communication protocol in which all information related to transmitter / instrument travels in the same pair of power loop of transmitter.

This information is transmitted by superimposing HART signal (AC) on 4-20mA DC signal. Hence HART DC value remains zero and it will not impact 4-20mA measurement.

The digital HART information is transmitted by two different signal 1200 Hz (Represented as 1) and 2200 Hz(Represents 0) in digital system.

Since transmitter are Highway Addressable, it is possible to configure transmitter remotely through a management system (e.g. AMS or PRM).

Hope this will help

Regards,
Jigar Anadkat

Answer / jigaranadkat

What Do you understand by HART protocol :

HART : Highway Addressable Remote Transducer

This is a communication protocol in which all information related to transmitter / instrument travels in the same pair of power loop of transmitter.

This information is transmitted by superimposing HART signal (AC) on 4-20mA DC signal. Hence HART DC value remains zero and it will not impact 4-20mA measurement.

The digital HART information is transmitted by two different signal 1200 Hz (Represented as 1) and 2200 Hz(Represents 0) in digital system.

Since transmitter are Highway Addressable, it is possible to configure transmitter remotely through a management system (e.g. AMS or PRM).

Hope this will help.

Regards,
Jigar Anadkat

what is the main supply source for pressure transmitter?

1 Answers  

---

How to calculate 47Liter H2 Gas cyilnder consumtion? Cylinder inlet Pressure is 200bar and Discharge pressure is 6.0bar. Flow is 100ml/min.For the above condition how many days one cylinder can be used?

1 Answers  

---

Give Detail information about plc,dcs,and scada system?

0 Answers  

---

Need Intergraph softwares like SPI(INTOOLS),sp3d,PV ELITE, SP P&ID. CONTACT : logu.2211@gmail.com (8867825756)

0 Answers   GE,

---

What is instrumentation instrumentation engineering?

0 Answers  

---

What are Sinking and Sourcing IO Cards

2 Answers  

---

We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia Oxygen analyser which is Yokogawa make. I kept the analyser in Flue gas path at Air pre heater area. My plant is 7.5MW Biomass power plant. For a particular fuel, Coconut Husk which contains Sodium and Potassium chlorides iam not getting proper reading, Analyser output always Zero. I calibrated the analyser and it is OK. For Other fuels like Wood chips, Cholam waste, DOB, Groundnutshells, Ply wood waste and all iam getting actual percentage of Oxygen. What is the main reason behind this draw back?

2 Answers  

---

What is frequency factor in massflow meter? When using frequency output?

0 Answers   PCMIL,

---

how far the two wire transmission (loop power) maximum distance suitable?

2 Answers   PCIL,

---

why we use the 4-20 mamp signal used for transmitter.

5 Answers   Tecnimont,

---

While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.

1 Answers  

---

dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

0 Answers   CPL,

---