AC voltmeter The meter voltage switching (AC VOLTAGE) Using this type of meter. Is the same as DC voltmeter. Is in use, it must be measured in parallel across the load required to measure the pressure. The main difference from the DC voltmeter. Is to use the meter or voltage across the power supply is not required, regardless of the meter terminal. Because the voltage polarity switching will be chasing all the time.
AC voltmeter with all five district is 0 ~ 2.5V, 0 ~ 10V, 0 ~ 50V, 0 ~ 250V and 0 ~ 1,000V
a fourth scale is 0 ~ 2.5,0 ~ 10, 0 ~ 50, 0 ~. 250 Read scale struck beneath the mirror.
Sequenced using an AC voltmeter
1. The AC volts, while measuring the voltage across the load in parallel with
the use of the 2 meter area ACV
3. Set the switch to measure correctly. If you do not know the value that measures how much. The district is located at the highest position (1,000V) first, and then diluted by the lower district. Until the meter will read easily and accurately
4. Before the voltage meter high. Should turn off the lights (OFF) of the circuit to be measured before
5. Do not touch or measure a meter when measuring high voltage. When the measurement is complete, power off (OFF) power switch of the measuring circuit before being lifted out of the cycle of the meter gauge line.
การแปล กรุณารอสักครู่..
