User`s guide

Chapter 6 Specifications RIGOL
M300 User’s Guide
6-5
[4]
Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range and <50 kHz, add 0.1% of range additional error.
For 50 kHz to 100 kHz, add 0.13% of range.
[5]
When the frequency is lower than 100 Hz, the specification of slow filter is only for sine wave input.
[6]
Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range, add 0.1% of range additional error. Specifications
are typical values for 200 uA, 2 mA, 2 A and 10 A ranges when frequency is >1 kHz.
Measuring Characteristics
True RMS AC Voltage
Measurement Method
AC-coupled True-RMS -- measure the ac component of input with up to 300 V DC bias on any range.
Crest Factor
≤ 5 at full range
Input Impedance
1 MΩ ± 2%, in parallel with <150 pF capacitance on any range
Input Protection
300 V rms on all ranges
AC Filter Bandwidth
Slow: 3 Hz – 300 kHz
Medium: 20 Hz – 300 kHz
Fast: 200 Hz – 300 kHz
CMRR (common mode
rejection ratio)
70 dB, for the 1 kΩ unbalance in LO lead, <60 Hz common mode signal frequency, ±500 VDC peak maximum.
True RMS AC Current
Measurement Method
Direct coupled to the fuse and shunt; AC-coupled True RMS measurement (measure the AC component).
Crest Factor
≤ 3 at full range
Max. Input
DC + AC current peak value <300% of range. Current with DC current component <10 A rms.
Shunt Resistor
100 Ω for 200 uA, 2 mA
1 Ω for 20 mA , 200 mA
0.01 Ω for 1 A
Settling Time Considerations
The default measurement delay of the multimeter can ensure the correctness of the first readings of most of the measurements. Make sure the RC
circuit of input terminal has been fully settled (about 1 s) before accurate measurement.