Make sure that the dcammeter indication increases approximately 5 amperes.
确保直流电流表指示升高大约5安培。
2
Make sure that the dcammeter indication decreases approximately 5 amperes (returns to its original value).
确保直流电流表指示降低大约5安培(回到初始值)。
3
Projection Ammeter, J01460, is suitable for middle schools and polytechnic schools to measure current intensity in the DC circuit in teaching demonstration or experiment with the projector.