Answer / sindhu

In some circuits the change in temperature affects the measurement. for example in case of a strain gauge the sensitivity of the gauge gets affected whenever there is change in temperature. this is because change in temp creates the thermal expansion of the material of the wire..
hence to get accurate measured values we have to compensate for these variations in temp and therefore temp compensation is done.

In electronic board one fuse(rating 230v,100ma)showing 2.5 ohms with multimeter,then the fuse is healthy or not.

4 Answers  

---

How to rerange a dp type level transmitter after installation?

1 Answers   NSH,

---

why we are using negative range like -750 to 0 mmwc in closed tank?and what is the reason can you explain clear?

2 Answers   Aarvi Encon,

---

can any one give me the cost price of yokogawa & rosemount transmitters

4 Answers  

---

What is wet leg condition and why is it used?

0 Answers  

---

Possible cause of IOP alarm in a DP transmitter: a: IOP-minimum b: IOP-Maximum

4 Answers  

---

what is the meaning of HART ?

2 Answers  

---

without a positionar can a control valve operate? give the difference of operating with positionar and without positionar?

5 Answers   IOCL,

---

Qatar fertilizer call me for interview as Instrumentation Project Engineer. Please let me know what kind of question they asked ? ALso they said they will take Written test, any idea about this written test ?

1 Answers   QAFCO,

---

what is cascade controller ?

6 Answers  

---

Can I route 110 VDC and 24 VDC in a same Duct for our Interposing relay cabinet? IF yes or NO Please provide me IEEE Std. for the same. Please i required it on Urgent basis, i need to design IRP Cabinets and we have MCC 110VDC and Our Coil side is 24VDC, Please help as soon as possible.

0 Answers   Yokogawa,

---

How can I zero check of wet leg type DP Tx ?

6 Answers   ONGC,

---