 Compensating
leadwires are not connected to the input terminals of M2TS, but wired to
a terminal box 10 cm before the transmitter. The compensating leadwires
should be connected directly to the input terminals of M2TS.
The secret of temperature measurement with a thermocouple is how correctly
the transmitter can measure the temperature where the compensating leadwires
are connected. In this case, when the door is open, due to the temperature
difference between output and inside the door, temperature error between
the terminal box and the input terminals of M2TS makes output unstable. |
When
opening a door of a transmitters' panel, the output of the M2TS becomes
unstable. Why?
