Rigol DM3058

RIGOL
User’s Guide for DM3058
5-9
Frequency/Period Characteristics
Accuracy Specifications (% of reading)
[1]
Function
Range
Frequency
Range
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
Frequency
Period
200mV to
750V
[2]
20Hz-2kHz
0.01+0.003
0.002+0.001
2kHz-20kHz
0.01+0.003
0.002+0.001
20kHz-200kHz
0.01+0.003
0.002+0.001
200kHz-1MHz
0.01+0.006
0.002+0.002
20mA to
10A
[3]
20Hz-2kHz
0.01+0.003
0.002+0.001
2kHz-10kHz
0.01+0.003
0.002+0.001
NOTE:
[1] Specifications are for 30 minute warm–up.
[2] For AC input voltages 12% to 120% of range except where noted. 750V range P/Fed to
750VRMS. 200mV range specifications are for full scale or greater inputs. For inputs from
24mV to 200mV, multiply total % of reading error by 10.
[3] For AC input current from 12% to 120% of range except where noted. 20mA range
specifications are for full scale. For inputs from 5mA to 20mA, multiply total % of reading
error by 10. 10A range is for AC input current from 25% to 100% of range.
Measurement Characteristics
Frequency and Period
Measurement Method: Reciprocal-counting technique. AC-coupled input using the ac voltage
or ac current measurement function.
Measurement attentions:
All frequency counters are susceptible to error when measuring low–voltage, low–frequency
signals. Shielding inputs from external noise pickup is critical for minimizing measurement errors.
Setting time attentions:
Errors will occur when attempting to measure the frequency or period of an input following a dc
offset voltage change. The input blocking RC time constant must be allowed to fully settle (up to
1 sec) before the most accurate measurements are possible.