Amprobe AM-540 Mode D'emploi page 25

2. AC Voltage Measurement
Range Resolution
6.000V
60.00V
600.0V 100mV
1000V
Overload protection: 1000Vrms
Input impedance: Around 10MΩ
Frequency response: 45Hz– 400Hz (AM-540 / AM-540-EUR), 45Hz – 1kHz (AM-
550 / AM-550-EUR)
AM-540 / AM-540-EUR: Average sensing, rms indication.
AM-550 / AM-550-EUR: True RMS.
Note: Frequency (on secondary display) may not be displayed if the measured
voltage is below 20% of the display voltage range.
3. Low Pass Filter
Range
6.000V
60.00V
600.0V
1000V
Block AC voltage signals above 1KHz
Overload protection: 1000Vp
4. Frequency measurement
Range
60.00Hz
600.0Hz
6.000kHz
60.00kHz
600.0 kHz
AM-540 / AM-550
AM-540-EUR / AM-550-EUR
1mV
10mV
1V
Resolution
0.001V
0.01V
Resolution
0.01 Hz
0.1 Hz
10 Hz
100Hz
Accuracy
45Hz – 400Hz
±(1.0%+3LSD)
±(1.2%+3LSD)
0.1V 200 to 440Hz ± (6%+40 LSD)
1V
1 Hz
19
400Hz – 1kHz
(AM-550)
±(2%+3 LSD)
±(2.5%+3 LSD)
Accuracy
45 to 200Hz ± (2%+40 LSD)
Accuracy
±(0.1%+3 LSD)