what is the difference between Digital output DO signals /Commands for start/stop and Solenoid valves ??

1 Answers  

---

Wht should be the ratio of natural frequency (Fn) to wake frequency (Fw) and wht if goes above the rato limit?

2 Answers  

---

can you tell me how many stages in steam turbine of 10 MW power plant

2 Answers  

---

What is impulse line size

3 Answers   IFFCO,

---

On liquid service if PT Head is 18 meters. How much pressure will be exerted on it. If Transmitter is not in service?

1 Answers  

---

What's the difference between cold loop test and hot loop test?

5 Answers  

---

why we use 250 ohms across HART CALIBRATOR DURING CALIBRATION OF TRANSMITTER

4 Answers  

---

Good Evening all.My question is - For a feed water line to an equipment if i need to measure the flow we will use orifice /magnetic/vortex depend on cost/spec.If i need to measure a ''Alarm''signal and ''Interlock'' from one point i think we can use orifice type in one location with 2 different tapping points - one for alarm and one for an interlock to flow valve..If in case i need to have both these signals(Alarm & interlock) from magnetic flow meter,is it possible??will 2 seperate sensors will be located inbuilt r we can program it ??..i thk we can have one transmitter with these 2 signals...need to know any technical issues are there?pls clarify

3 Answers  

---

1 How to calculate dp transmitter steam and water? 2 impulse line for liquid steam and gas

1 Answers   Sitara Chemical Industries,

---

why r using 250 resistances

6 Answers   Sabic, Samsung,

---

what is the characteristics of control valve?

7 Answers  

---

HOw To Use 24V DC in Instrument?

2 Answers  

---