Ac Voltage Specifications - Fluke 8846A/C User Manual

Input Characteristics
Range Resolution
100 mV 100.0000 mV
1 V 1.000000 V
10 V 10.00000 V
100 V 100.0000 V
1000 V 1,000.000 V
[1] Inputs beyond ±14 V are clamped through 200 kΩ typical. 10 MΩ is default input impedance.
8846A Accuracy
Accuracy is given as ± (% measurement + % of range)
24 Hour
Range
(23 ±1 °C)
100 mV 0.0025 + 0.003
1 V 0.0018 + 0.0006
10 V 0.0013 + 0.0004
100 V 0.0018 + 0.0006
1000 V 0.0018 + 0.0006
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
24 Hour
Range
(23 ±1 °C)
100 mV 0.003 + 0.003
1 V 0.002 + 0.0006
10 V 0.0015 + 0.0004
100 V 0.002 + 0.0006
1000 V 0.002 + 0.0006
Additional Errors
Digits
6½
6½
5½
5½
4½

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 (8845A), 1000 V rms or 1414 V peak
Measurement Method ............................................. AC-coupled true-rms. Measures the ac component of input with up to
AC Filter Bandwidth:
Slow .................................................................... 3 Hz – 300 kHz
Medium ............................................................... 20 Hz – 300 kHz
Fast ..................................................................... 200 Hz – 300 kHz
Common Mode Rejection ....................................... 70 dB at 50 Hz or 60 Hz ±0.1 % (1 kΩ unbalance)
Crest Factor Error (applies to non-sinusoidal waveforms only)
Maximum Crest Factor ....................................... 5:1 at Full Scale
Resolution
4½ Digits 5½ Digits
10 μV 1 μV
100 μV 10 μV
1 mV 100 μV
10 mV 1 mV
100 mV 10 mV
90 Days
(23 ±5 °C)
0.0025 + 0.0035
0.0018 + 0.0007
0.0018 + 0.0005
0.0027 + 0.0006
0.0031 + 0.001
90 Days
(23 ±5 °C)
0.004 + 0.0035
0.003 + 0.0007
0.002 + 0.0005
0.0035 + 0.0006
0.0035 + 0.0010
NPLC Additional NPLC Noise Error
100
10
1
.2
0.02
(8846A) or 8 x 10
range.
1000 V dc bias on any range.
Introduction and Specifications
6½ Digits
100 nV
1 μV
10 μV
100 μV
1 mV
Temperature
1 Year
Coefficient/ °C
(23 ±5 °C)
Outside 18 to 28 °C
0.0037 + 0.0035 0.0005 + 0.0005
0.0025 + 0.0007 0.0005 + 0.0001
0.0024 + 0.0005 0.0005 + 0.0001
0.0038 + 0.0006 0.0005 + 0.0001
0.0041 + 0.001 0.0005 + 0.0001
Temperature
1 Year
Coefficient/ °C
(23 ±5 °C)
Outside 18 to 28 °C
0.005 + 0.0035 0.0005 + 0.0005
0.004 + 0.0007 0.0005 + 0.0001
0.0035 + 0.0005 0.0005 + 0.0001
0.0045 + 0.0006 0.0005 + 0.0001
0.0045 + 0.0010 0.0005 + 0.0001
0 % of range
0 % of range
0.001 % of range
0.0025 % of range +12 μV
0.017 % of range +17 μV
7
volts-Hertz product (whichever is less) for any
Electrical Specifications
Input Impedance
[1]
10 MΩ or >10 GΩ
[1]
10 MΩ or >10 GΩ
[1]
10 MΩ or >10 GΩ
10 MΩ ±1%
10 MΩ ±1%
1
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