Datasheet

TEK.COM 11
DMM7512 Dual Channel 7½-Digit Sampling Multimeter
Digitize Voltage
Accuracy (Input Impedance AUTO)
Range
41, 42
Resolution
43
Input Impedance
44
Accuracy ±(ppm of reading + ppm of range)
90 Day
T
CAL
±5 °C
1 Year
T
CAL
±5 °C
2 Year
T
CAL
±5 °C
Temperature
Coefficient
45
100.000 mV 1 µV >10 G Ω or 10 MΩ ±1% 210 + 100 220 + 100 230 + 100 15 + 20
1.00000 V 10 µV >10 G Ω or 10 MΩ ±1% 110 + 75 120 + 75 130 + 75 15 + 20
10.0000 V 0.1 mV >10 G Ω or 10 MΩ ±1% 110 + 75 120 + 75 130 + 75 10 + 20
100.000 V
46
1 mV 10 MΩ ±1% 110 + 75 120 + 75 130 + 75 15 + 20
1000.00 V
47
10 mV 10 MΩ ±1% 110 + 75 120 + 75 130 + 75 10 + 20
DC-Coupled Additional Noise Uncertainty, Typical
48
1
10
100
1000
1k 2k 5k 10k 20k 50k 100k 200k 500k 1M
ppm of Range
Samples per Second
RMS Noise, Digitize Voltage
100mV
1V
10V
100V
1000V
NOTES
41. For DC coupling, 20% overrange for 100 mV to 100 V. For AC coupling, 500% overrange 100 mV to 100 V. 1% for 1000 V range DC coupling.
42. Accuracy with sample rate 1 k per second, aperture auto, and 100 reading buffer average.
43. Power up default is 4½ digits.
44. User-selectable.
45. Add per degree from T
CAL
± 5%.
46. For 100 V range, input impedance auto and without ACAL, add 100 ppm of range additional uncertainty and 15 ppm/°C additional uncertainty for “of range” temperature coefficient for
operation outside of T
CAL
±5 °C.
47. For signal levels greater than 500 V, add 0.02 ppm/V to the ppm of the readings specification for measurements exceeding 500 V.
48. Specified with aperture Auto and 4-wire short on input terminals. For 100 V range, input impedance 10 MΩ, multiply by 2.5. For all ranges and sample rate > 1 k, add an additional 3× RMS
noise uncertainty to ppm of range.