Les précautions avant utilisation un numérique multimètre à mesure avion électriques et électroniques_circuits sont as suit:
(1) Avant mesure le circuit, le circuit mesuré doit être soigneuse étudiée. Prenant le Boeing avion as an exemple, first look up the SSM and WDM manuals, find out the connection relationship between the tested circuit and other circuits, and formulate a measurement plan to avoid mismeasurement .
(2) When you borrow a digital multimeter from the tool room, because it is a measurement tool, you must check whether it is within the calibration period when you borrow it.
(3) Quand utilisation la résistance engrenage de le numérique multimètre à mesure, le plug de l’avion batterie doit être débranché, et a signe que non puissance est autorisé à être suspendu sur le sol puissance socket, et le principe de pas être capable à mesure résistance avec puissance
but. Ligne mesure travailleurs doivent usure antistatique poignet.
(4) On an airplane, when using a digital multimeter to measure resistance, it is necessary to select the common end as the position of zero potential. Généralement, we connect one end of the line to the common ground wire or electrostatic hole of the airplane or
Some rivets. Le grounding of the test lead should be reliable, and should not be connected to the the isolation layer (such as the painted surface of the aircraft skin, the place where the machine parts are painted) or the place with oil dirt, so as to avoid poor contact. In order to judge whether the grounding of the test leads is good, you can ground the red and black test leads at the same time, and observe the resistance value to check.
(5) When measuring at the socket or plug, you should see the label of the jack or pin to avoid measurement errors. The two test leads cannot touch each other, they cannot be attached to the case, and they cannot touch other pins or sockets. Otherwise, the measurement results will be inaccurate
