Answer / praveen kumar

bench set is called based on the line pressure, control valve actuator spring adjustment....if control valve spring range 0.4-1.0 bar means ..the control valve will start to opened at 0.4bar instrument air pressure.before or after 0.4bar it should not start to open, at 1.0 bar the valve should be fully open(max travelling range of valve)...
Operating range is called as positioner output 0.2 to 1.0 bar...

Will Intergraph support SmartPlant Instrumentation in an AutoCAD or MicroStation environment on a long-term basis?

1 Answers   Siemens,

---

Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?

0 Answers  

---

Explain the difference between the types of input variables plc?

1 Answers  

---

When a timer is placed in RS Logix 5000 with preset value less than its scan time it is malfunctioning. i.e., if the preset is set to 30ms still the timer TT bit is counting till 150ms(its scan time). Any solution for the problem?

2 Answers   Balco,

---

How to check the SCAN time of DCS ,n dont give therotical answers .How to check the SCAN time of DCS during FAT?

2 Answers  

---

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).

9 Answers  

---

What is DDC-MIS?

3 Answers  

---

What is the differaence between PLC and DCS?

6 Answers  

---

diff bw range and span?

3 Answers  

---

what is full form of NAK?

1 Answers  

---

while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?

0 Answers   Petronas,

---

what is sinking and sourcing....

2 Answers  

---