Question { Honeywell, 47841 }

how to check thermocouple ,its working or not?

Answer

T/C output is voltage . the voltage is dipance on the diff
detween the temperature of hot junction and cold function.
so the t/c junction is same temperature means it ll not
show the mv. you heat the hot jun then measur the mv inthe
output terminal and comare with standard chard before taht
check the terminal continty. then check the resistance of
the terminal if it is more the t/c is failure

Question { QAFCO, 22849 }

why dead weight tester called dead weight tester.

Answer

the dead weight tester is working on force balance
principle the force is depance on the weight.

Question { Birla, 20502 }

How can we check Zero of DP type Level Transmitter onside?

Answer

close the hp and lp valve and drain the water then open the
vent valve it should show the zero value.