Answer Posted / yousuf

In instrumentation the analog refers to the(4-20ma).

when the analog signal(4-20ma) goes to the input module in
the control system that is called analog input.
eg. the output of pressure transmitter

when the analog signal(4-20ma) comes from the output module
to the final control element in the field ie called analog
output.
eg. control valve

the digital signal in the instrumentation system varies
according to the application for eg we can take two states
on and off for off state the signal is 0v and the on state
the voltage 24v

digital inputs means the signal goes to the digital module
for eg the signal of pressure ,flow ,temperature switch.

digital output means the signal comes from the digital
output module for eg the signal to solenoid valve in the
esd valves

where proximity sensor installed on tank in loading arm application

2256

---

What is instrumentation control?

1142

---

Identification of ss fittings, pilot valves, relief valve.

1822

---

What is loop1 and loop2 in MTS LT?

3830

---

What are primary elements of measuring pressure?

1273

---

what are the use of belew gear in general ??

1996

---

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

1972

---

䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ

1950

---

how can be calibrate flow indication transmitter (rosemount) it shows excess milli amps nearly about 24 ma on full scale, but its scale was set on 20ma on full scale..???how can be simiulate..???

2402

---

Identification of control valve parts.

2052

---

what is KV and XV valve

1791

---

what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...

2008

---

Pl send the model question paper of mahagenco account officer post

2753

---

can you provide me full detail about instrumentation in ONGC??

2161

---

Explain plc level and its type?

1336

---