Answer / richard marks

ph meters are calibrated using buffer solutins which are at
known ph levels. Make sure the probe is cleaned before
imerging it in the solutions.

Answer / satish

YOU CAN CALIBRATE IN THREE PHASE 4/7/9 PH BUFFER SOLUTION
NORMALLY WE ARE CALIBRATING WITH 4 & 9 PH BUFFER THAT MEAN
4PH--4MA/9PH--20

Answer / subhash

the Ph calibration is done by using the buffer solutions
,with the one probe i,e the reference electrode and the
measurement electrode ,,,,,,,,,,,,,

Can anyone convert a 5/2 way or 3/2 way valve into an ISO valve?

0 Answers  

---

How do you calibration D.P transmitter? ?

2 Answers   Power Plant,

---

IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?

0 Answers  

---

In bimetallic temp. Gauges why does metal strip bend? Why do we use low expansion factor metal and high expansion factor metal in bimetaliv strip?

1 Answers   Process Control Technologies,

---

how can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?

0 Answers   Chevron Phillips,

---

What is PID tunning

2 Answers   EID Parry, MFL,

---

Why would an Engineer consider combining FEEDBACK and FEEDFORWARD control in some applications?

4 Answers   Jindal,

---

Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

---

why are set -10vdc in bently neveda vibration system.

4 Answers  

---

sir,would you please send me the Hindustan petroleum corporation limited papers(HPCL).my e-mail ID is ujjwal_sharma1983@yahoo.com

0 Answers   HPCL, TCS,

---

how to measure flow with dp

1 Answers  

---

Why any transmitter signal is 4-20 mA only Why is started from lower range 4 mA and upper range is 20mA.

5 Answers   Edac,

---