14
15
Accuracy
Refer to the “Specifications” section for operating conditions and temperature coefficient.
Accuracy is specified as follows: ± (a percentage of the r a fixed amount) at 23 °C ± 5 °C
(73.4 °F ± 9 °F), 0% to 75% relative humidity.
True RMS Readings: Voltage and current accuracies are specified from 10% to 100% of the range
unless otherwise specified. Frequency must be within the specified bandwidth for non-sinusoidal
waveforms. Crest factors are as follows:
• Crest factor < 3:1 at full scale
• Crest factor < 6:1 at half scale
All Models
AC Voltage
20
Accuracy
Refer to the “Specifications” section for operating conditions and temperature coefficient.
Accuracy is specified as follows: ± (a percentage of the r a fixed amount) at 23 °C ± 5 °C
(73.4 °F ± 9 °F), 0% to 75% relative humidity.
True RMS Readings: Voltage and current accuracies are specified from 10% to 100% of the range
unless otherwise specified. Frequency must be within the specified bandwidth for non-sinusoidal
waveforms. Crest factors are as follows:
• Crest factor < 3:1 at full scale
• Crest factor < 6:1 at half scale
All Models
AC Voltage (AC + DC Voltage on DM-830A and DML-430A Only)
Range
Accuracy at
50 to 60 Hz
Accuracy at
40 to 500 Hz
Accuracy at
500 Hz to 1 kHz
Accuracy at
1 to 3 kHz
Accuracy at
3 to 20 kHz
60.00 mV
± (0.5% +
0.03 mV)
± (0.8% +
0.04 mV)
± (2.0% +
0.03 mV)
± (2% +
0.03 mV)
± (2% +
0.03 mV)
(1)
600.0 mV
± (0.5% +
0.3 mV)
± (0.8% +
0.4 mV)
± (2.0% +
0.3 mV)
± (2% +
0.3 mV)
± (2% +
0.3 mV)
(1)
9.999 V
± (0.5% +
0.003 V)
± (1.0% +
0.004 V)
± (1.0% +
0.004 V)
± (3% +
0.004 V)
3 dB
99.99 V
± (± (0.5% +
0.03 V)
± (1.0% +
0.04 V)
± (1.0% +
0.04 V)
± (3% +
0.04 V)
3 dB
999.9 V
± (0.5% + 0.3 V) ± (2.0% + 0.4 V) ± (2.0% + 0.4 V) ± (3% + 0.4V)
Unspecified
(1)
Specified from 30% to 100% of range
Input Impedance: 10 MΩ, 50 pF nominal (80 pF nominal for 600 mV range)
DC Voltage
Range
Accuracy
60.00 mV
± (0.12% + 0.02 mV)
600.0 mV
± (0.06% + 0.2 mV)
9.999 V
± (0.08% + 0.002 V)
99.99 V
± (0.08% + 0.02 V)
999.9 V
± (0.08% + 0.2 V)
Input Impedance: 10 MΩ, 50 pF nominal (80 pF nominal for 600 mV range)
DM-810A • DM-820A • DM-830A • DML-430A
21
Accuracy
(cont’d)
Resistance and Conductance (Conductance on DM-820A, DM-830A, and DML-430A Only)
Range
Accuracy
Typical Open Circuit Voltage
600.0 Ω
± (0.1% + 0.3 Ω)
1.2 VDC
6.000 kΩ
± (0.1% + 0.003 kΩ)
60.00 kΩ
± (0.1% + 0.03 kΩ)
600.0 kΩ
± (0.1% + 0.3 kΩ)
6.000 MΩ
± (0.4% + 0.003 MΩ)
60.00 MΩ
± (1.5% + 0.05 MΩ)
99.99 nS
± (0.8% + 0.1 nS)
1.2 VDC
Continuity
Tone Threshold: Between 20 Ω and 300 Ω
Response Time: < 100 µs
Capacitance
Range
Accuracy
(1)
60.00 nF
± (0.8% + 0.03 nF)
600.0 nF
± (0.8% + 0.3 nF)
6.000 µF
± (1.0% + 0.003 µF)
60.00 µF
± (2.0% + 0.03 µF)
600.0 µF
(2)
± (3.5% + 0.5 µF)
6.000 mF
(2)
± (5.0% + 0.005 mF)
25.00 mF
(2)
± (6.5% + 0.05 mF)
(1)
Accuracies with film capacitor or better
(2)
In manual ranging mode, measurements are not specified below 50.0 µF, 0.54 mF, and 5.4 mF for
600.0 µF, 6.000 mF and 25.00 mF ranges, respectively
Diode Test
Measuring Range: 2.000 V
Test Current (typical): 0.4 mA
Open Circuit Voltage: < 3.5 VDC
Accuracy: 1.0% + 0.001 V
Resistance and Conductance
