Tektronix DMM4020, Техническое справочное руководство

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DMM4020
Technical Reference
AC Voltage Specifications
AC Voltage specifications are for ac sinewave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz,
add an additional error of 0.1 % of range, and for 50 kHz to 100 kHz, add 0.13 % of range.
Maximum Input ................................................. 750 V rms or 1000 V peak or 8 x 10
7
Volts-Hertz product
Measurement Method ....................................... AC-coupled true-rms. Measures the ac component of input with up to
1000 V dc bias on any range.
AC Filter Bandwidth ......................................... 20 Hz – 100 kHz
Common Mode Rejection ................................. 60 dB at 50 Hz or 60 Hz (1 k
Ω
unbalance)
Maximum Crest Factor .................................... 3:1 at Full Scale
Additional Crest Factor Errors (<100 Hz) ...... Crest Factor 1-2, 0.05 % of full scale
Crest Factor 2-3, 0.2 % of full scale
Only applies for non-sinusoid signals
Input Characteristics
Range
Full-Scale
(5-1/2 Digits)
Resolution
Input Impedance
Slow Medium Fast
200 mV 199.999 mV 1
µ
V 10
µ
V 10
µ
V 1 M
Ω ±
2 % shunted by
<100 pf
2 V 1.99999 V
10
µ
V 100
µ
V 100
µ
V
20 V 19.9999 V
100
µ
V 1000
µ
V 1000
µ
V
200 V 199.999 V 1 mV 10 mV 10 mV
750 V 750.00 V 10 mV 100 mV 100 mV
Accuracy
Range Frequency
Uncertainty
[1]
Temperature
Coefficient/°C
Outside 18 – 28 °C
90 days 1 year
23 °C
±
5 °C 23 °C
±
5 °C
200 mV 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005
45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005
20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005
50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01
2 V 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005
45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005
20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005
50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01
20 V 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005
45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005
20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005
50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01
200 V 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005
45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005
20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005
50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01
750 V 20 Hz – 45 Hz 0.8 + 0.05 0.9 + 0.05 0.01 + 0.005
45 Hz – 20 kHz 0.15 + 0.05 0.2 + 0.05 0.01 + 0.005
20 kHz – 50 kHz 0.3 + 0.05 0.35 + 0.05 0.01 + 0.005
50 kHz – 100 kHz 0.8 + 0.05 0.9 + 0.05 0.05 + 0.01
Notes:
[1] Uncertainty given as
±
(% of r % of range)
1-12