Resistence temperature detector means RTD Technical Data:
Sensor method of connection
2-wire The lead resistance compounds the error.
3-wire With a cable length of approx. 30 m or longer measuring deviations can occur.
4-wire The inner lead resistance of the connecting wires is negligible.
Class B per DIN EN 60 751
Class A per DIN EN 60 751
It makes no sense to combine 2-wire connection with Class A, since the lead resistance of the cable overrides the higher sensor accuracy.
Put the item into a shielding bag first, then put it in a box.
The shielding bags specification:
Located in Baoan district Shenzhen, VA owns advanced production technologies, testing equipments.