Answer / abdul

Positive feedback is giving some amount of o/p to i/p in
phase.Whereas Negative feedback is giving some amount of o/p
to i/p with 180 degree out of phase.

Answer / farooq

what is diffrent between smart and hart communicator

Answer / scheau vlad

The positive feedback is when in control room, at console,
operator recive correct all signals from field durring loop
check.
The negative feedback is when he don`t recive some of the
signals, for example testing one control valve with limit
switch, he dont see in the console the indication of the
limit switch.
I hope is usefull answer :)

What is the different between ESD & PLC.

1 Answers  

---

the square root type transmitter r used to which applications

4 Answers   Roche,

---

pressure switch range 0 to 2bar.i have to install from ground level to 5 meters height.what is the formula the to increse the range ? and every 1 meter how much pressure should be add ?

3 Answers  

---

Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.

0 Answers  

---

when i installed Allen_bradley_RsLogix_500_Pro_V_7.0,after installation it gives the fatal error.it need activation file.from where and how i can find its activation file.

6 Answers  

---

---

WHEN DO WE GO FOR FMCW TYPE RADAR & PW TYPE RADAR ?

1 Answers  

---

what is the difference between 3,4 wire RTD sensor?

6 Answers   HTA Instrumentation,

---

what are the difference between conventional and smart transmitter.

1 Answers  

---

Can you tell me how we will select RTD and Thermocouples for Temperature applications. I.e How we will choose accurate one for a specefic operation if both having same ranges

3 Answers   Nippon,

---

What is T4 temperature in compressor?

1 Answers  

---

what is meant by orderm of a system. will the stability of a system increases by incresing order of a system

1 Answers  

---

In bently nevada vibration monitoring system,what is the reason to maintain the Resistance of the probe + extension cable equal to 95 ohm? If possible explain the basic principle of measurement with detail electronic circuits.

0 Answers   Essar,

---