Answer / carl_ellis

Let's assume base metal elements only, since noble metal
elements are so expensive that they are under lock and key;
adequate protection from loss of identification.

For types T, J and K, (and by exclusion, E) the options are

-a spectropscopic assay which will positively reveal the
alloys' composition, but given that the cost of an assay is
proabably 20x times the value of a base metal element, it's
not likely to happen.

- visual identification of a type T by the copper color of
its positive leg which is copper. The alloy leg is a shiny
'metallic' color.

- testing Types J or K with a magnet.
The Type J positive leg is made of iron which has a very
strong magnetic attraction.
The Type K negative leg is made of a nickel alloy which is
mildly magnetic.
Type E is non magnetic, but so are other types.
It can be tricky to distinguish mild attraction on thin
gauge wire.

Testing with a multimeter can be very misleading, because of
the difficulty in determining both the hot junction AND the
cold junction temperatures. Without accurate temperature
values, of what use is a mV reading?

Carl Ellis
Measure First

Can any body help to get Rsemulator 5000 free from internet if possible then give me any link or any help .

0 Answers   Engro,

---

HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with

0 Answers   GSM, IOCL,

---

please explain smoke detectore & lel detector?what is o/p

1 Answers  

---

How to Calibrate Penumatic Transmitter.LRV= -60 URV= -20.Can u give me Answer.

9 Answers   ABB,

---

why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature

0 Answers   ABG Energy,

---

---

Why is the orifice tab provided?

0 Answers  

---

can we copy the software from a transmitter using hht(hart 275) ?

0 Answers  

---

what is the procedure for auto tune in masoneialn 12300 series displacer type transmitter?

0 Answers  

---

what are procedure of sox-nox calibration

0 Answers   TATA,

---

diff bw range and span?

3 Answers  

---

Control valve question what is the meaning of cauge.?what is the use of cauge?

1 Answers  

---

wich is coming the first HAZOP OR SIL

0 Answers  

---