ET521B, it's perfectly inosculate 50M Digital Storage Oscilloscope(DSO), 10Hz-156Hz Direct Digital Synthesizer（DDS）, 60MΩ LCR bridge, Cymometer and 6000 count Digital Multimeter(DMM) in one product, which make it a powerful on-site detecting expert.
Convenient operation "help window" designed Crystal oscillator and remote control detecting 66000μF super capacitance measuring 60MHz Frequency measuring/duty cycle Peak value detect and hold; (P-D)&(P-H) and Max./Min./Current value display simultaneously on one screen 400 groups of data storage and auto recording 156kHz Auto-range inductance meter 40 groups of waveform storage and readout 6600 count Auto waveform display multimeter Panel calibration technology 20kHz AC Voltage bandwidth and one-key switch to waveform function. the Max. Voltage measuring range is up to 2000V In DSO mode, one-key switch to auto measuring, auto displaying waveform and auto zero calibrating. Digital readout Vp-p, +Vp，-Vp，f，T，dV，dt and measuring parameter Generate Sine Wave, Triangle Wave, Saw Tooth Wave And Square Wave, building the testing system with the DSO match using 200μS/400μS test square wave to detect the Ring signal generated by short circuit in Line output transformer 320 X 240 industry level LCD with contrast adjustment LED backlight Built-in 1600mAh Ni-Hi charge battery, external matched power adapter USB interface Function extended with optional accessories. | Function | Range | Resolution | Accuracy |
| DC Voltage | 0.1mV~1V
2000V | 0.1mV~1V
1V | ±(0.8%rdg + 5dgt)
±(2.5%rdg + 10dgt) |
| AC Voltage | 600.0mV~600.0V
1000V | 0.1mV~1V
1V | 50Hz~400 Hz ±(1.0%rdg + 5dgt)
400Hz~20kHz ±(3.0%rdg + 10dgt)
50Hz~400Hz ±(2.5%rdg + 10dgt) |
| DC Current | 60.00~600.0mA
10.00A | 10/100µA
10mA | ±(1.0%rdg + 5dgt)
divider±(2.5%rdg + 5dgt) |
| AC Current | 60.00~600.0mA
10.00A | 10/100µA
10mA | ±(1.5%rdg + 5dgt)
divider±(2.5%rdg + 5dgt) |
| Resistance | 600.0 W ~6.000MW
60.000 MW | 0.1 W ~1 kW
10 kW | ±(1.0%rdg + 5dgt)
±(3.0%rdg + 5dgt) |
| Capacitance | 6．600nF~66.00μF
660.0μF
6.600MF~66.00MF | 1pF~10nF
100nF
1μF | ±(3%rdg + 10dgt)
±(5%rdg + 10dgt)
|
| Inductance | 10.00Μh~2H | 0.01μH~10mH | ±(5%rdg + 15dgt) |
| Frequency | 10.00Hz ~60.00MHz | 0.01Hz~ 0kHz | ±(0.2%rdg + 5dgt) |
| Duty cycle | Yes | Diode test | Yes |
| Continuity test | Yes | | |
