what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

0 Answers  

---

what is differnace between radar level tranmitter & hart type tranmitter?

3 Answers  

---

in differential pressure transmitter,min&max pressure range for hp&lp

0 Answers  

---

if the neutral and ground of ups voltege are connected together in the source itslef then why the voltege b/w neutral and ground comes positive in some other destination inspite of having earth pit. how can we mimmise this?

1 Answers   MPL,

---

whats the working of principal thermocouple

6 Answers  

---

---

Explain pH, Conductivity.

0 Answers   CCIE,

---

what are the use of belew gear in general ??

0 Answers  

---

how to calibrate temprature switch and flow switch ?

1 Answers   Adgas,

---

what is cems analyzer explain with principle and drawing ?

0 Answers  

---

HELLO FRIENDS plz tell me which are the PROTOCOLS we are using in PLC

3 Answers  

---

Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

0 Answers  

---

What skill/s does the Instrument Technician has?

6 Answers  

---