Answer / r.murugan

o2 analyzer need zero and span gas for calibration

zero gas will be standard parameter

span gas will be standard parameter

you have to select calibration mode

if select zero gas calibration (cyclinder open) enter while
zero gas calibration finish it should reach actual standard
gas value if reached close the zero gas cyclinder

we can proceed to span gas calibration open the span gas
cyclinder select the span gas calibration enter while span
gas calibration finish it should reach standard span gas
value if reached we close the span gas cyclider

Answer / mahesh

O2 analyzer input connection removed and checked in atmosphere oxygen percentages after setting o2 sensor 20.1% in o2

Answer / macchindra

In atmosphere the O2 content must be 20.8%

How a pH sensor & analyzer work at waste water treatment plant, whats the principle & science is beyond this,How pH sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in analyzer

1 Answers  

---

draw a loop drawing of vibration beginning to end

1 Answers  

---

can you suggest good traning institute in instrumentation ? (in automation, or designing)

5 Answers  

---

Furnace draft transmitter range is -50 to +50 mmwc. why the impulse line connected in hp side?

2 Answers   Arena,

---

how can loop single 4-20 ma to two isolation amplifier? i mean i have two isolation amplifier with 4-20 ma input and 1-5 v output.can i done series connection ?

1 Answers  

---

generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 Answers   Indian Steel,

---

please send the hpcl (instrumentation) model placement papers to my mail....

9 Answers   HPCL, Invensys, IOCL, ONGC,

---

Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions? 

0 Answers   Process Control Technologies,

---

Calibration procedure for electro magnetic flow meter

0 Answers  

---

what does it mean an active front end in vfd plz explain it briefly

0 Answers  

---

what is mass flow meter, working principle of mass flow meter and its installation.

2 Answers  

---

How can I read the electrical drawing easily?

2 Answers   Plot Enterprise,

---