Datasheet

Page 07
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Digital multimeter specifications (continued)
Frequency specifications
Table 3. Frequency accuracy specifications ± (% of reading + % of range)
Function Range Frequency range
1 year
23 ºC ± 5 ºC
Temperature coefficient/ºC
0 to 18 ºC
28 to 55 ºC
Frequency
1
Voltage path:
100 mV to 750 V
< 2 Hz
< 20 Hz
20 Hz to 100 kHz
100 to 300 kHz
0.18 + 0.003
0.04 + 0.003
0.02 + 0.003
0.02 + 0.003
0.005
0.005
0.005
0.005
Current path:
10 mA to 3 A
< 2 Hz
< 20 Hz
20 Hz to 10 kHz
0.18 + 0.003
0.04 + 0.003
0.02 + 0.003
0.005
0.005
0.005
1. For 100 mV and 1 V ranges, the measurable frequency is up to 1 MHz at 0.5 V signal. Minimum input frequency is 1 Hz.
All frequency counters are susceptible to errors when measuring low-voltage, low-frequency signals. Shielding inputs from external
noise pickup is critical for minimizing measurement errors.
Table 4. Frequency sensitivity for voltage measurement
Input range1
Minimum sensitivity (rms sine wave)
20 Hz to 100 kHz 100 to 300 kHz 300 kHz to 1 MHz
100 mV
1.0 V
10 V
100 V
750 V
50 mV
100 mV
1 V
10 V
100 V
50 mV
120 mV
1.2 V
12 V
–
0.5 V
0.5 V
—
—
—
1. Maximum input for specified accuracy = 10 × range or 750 V
rms
or 1000 V
dc
.
Table 5. Frequency sensitivity for current measurement
Input range
Minimum sensitivity (rms sine wave)
20 Hz to 10 kHz
10 mA
100 mA
1.000 A
3 A
1 mA
10 mA
100 mA
300 mA