Answer / anil

above two ans are correct
Basic difference is
1.T/C is contact type temp semsing device.
Pyrometer is Noncontact temp sensing device.
2.T/C is used in where u r measuring a room temo, molten
metal bath temp, i.e. where u can insert it.
pyrometer is used where contact is not possible like
running hot sheets, metal strips like in steel industries

Answer / amsal

each has its own value.
Because pyrometer is used where t/c can not be used.and pyrometer can not take place of t/c.
pyrometer is used to measure the temperature measurment is done without contact or contact can be harmful like in foundries operations as anealing, tempering and melting etc,
there temperature range is higher than t/c range.
T/C is used in process industries commonly to measure temperature.where pyrometer cannot be used.

Answer / raju

Both as its own application and its useage
t/c can measure only upto particular range only depending
on the type of t/c were as pyrometer range will be more
than t/c, at the measuring range of pyrometers t/c will
melt more over for temp. between 1100deg its lots better to
go for t/c only if the contact is available and the range
above this its better to preffer pyrometer wether it may be
contact r non contact is available

Answer / prithiviraj

thermocouple is contact type measuring device which can be used up to 1100 deg/cel. whilepyrometer is a non contact measuring device which can be used up to 1100 deg/cel.both are best according to the application 

i have one absolute pressure transmitter for the range is -400mmhg to 400mmhg. If i do the zero trim at atmosphere the transmitter should be give 4ma or 12ma? which one is correct?

2 Answers  

---

what is meant by orderm of a system. will the stability of a system increases by incresing order of a system

1 Answers  

---

If The RTD(PT100) Show .776 Kohm Resistance the Temperature of process fluid how much?

3 Answers  

---

how to calibrate motorized operated valve?

1 Answers   Bilt, Jubilant, SRF,

---

what is meant by nuclear collector?

0 Answers  

---

WHAT IS D/O D/I AND A/O A/I PLZ EXPLAIN

2 Answers  

---

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

0 Answers  

---

What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

0 Answers  

---

can anyone can let me know in Eurotron Micro cal 2+ calibrator in milli amps source mode we are not able to get 20 milli amps output it only produces 1.52 milli amps out, but display shows increase in milli amps , and err6 displays, let me know how to remove the err 6.

0 Answers  

---

WHY TEMPERATURE TRANSMITTER USED AS WE CAN CONTROL THROUGH THERMOCOUPLE/RTD

5 Answers   Samsung, Thermax,

---

what is temperature compensation?

1 Answers  

---

difference between accuracy and precision

6 Answers   Honeywell, ONGC,

---