Fluke 8846A - Installation Test for IEEE-488 Connections; If The Test Fails

8845A/8846A
Calibration Manual
1-18
8845A Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
Frequency
(Hz)
24 Hour
(23 ±1 °C)
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
Temperature
Coefficient/ °C
Outside 18 to 28 °C
3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006
5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006
10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1+ 0.04 0.015 + 0.006
10 mA
5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006
3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006
5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006
10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006
100 mA
5 – 10 kHz 0.2 + 0.25 0.2 + 0.25 0.2 + 0.25 0.03 + 0.006
3 – 5 Hz 1.0 + 0.04 1.0 + 0.04 1.0 + 0.04 0.1 + 0.006
5 – 10 Hz 0.3 + 0.04 0.3 + 0.04 0.3 + 0.04 0.035 + 0.006
10 Hz – 5 kHz 0.1 + 0.04 0.1 + 0.04 0.1 + 0.04 0.015 + 0.006
1 A
[2]
5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006
3 – 5 Hz 1.1 + 0.06 1.1 + 0.06 1.1 + 0.06 0.1 + 0.006
5 – 10 Hz 0.35 + 0.06 0.35 + 0.06 0.35 + 0.06 0.035 + 0.006
10 Hz – 5 kHz 0.15 + 0.06 0.15 + 0.06 0.15 + 0.06 0.015 + 0.006
3 A
[1][2]
5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006
3 – 5 Hz 1.1 + 0.04 1.1 + 0.04 1.1 + 0.04 0.2 + 0.006
5 – 10 Hz 0.35 + 0.04 0.35 + 0.04 0.35 + 0.04 0.1 + 0.006
10 Hz – 5 kHz 0.15 + 0.04 0.15 + 0.04 0.15 + 0.04 0.015 + 0.006
10 A
[2]
5 – 10 kHz 0.35 + 0.7 0.35 + 0.7 0.35 + 0.7 0.03 + 0.006
[1] Part of the 10 A range
[2] Available only at front panel connectors
Additional Low Frequency Errors
Error is stated as % of reading.
AC Filter
Frequency
3HZ (slow) 20HZ (medium) 200HZ (fast)
10 – 20 Hz 0 0.25 –
20 – 40 Hz 0 0.02 –
40 – 100 Hz 0 0.01 0.55
100 – 200 Hz 0 0 0.2
200 Hz – 1 kHz 0 0 0.02
> 1 kHz 0 0 0
Frequency
Gate Times............................................................. Programmable to 1 s, 100 ms, and 10 ms
Measurement Method ........................................... Flexible counting technique. AC-coupled input using the ac voltage
measurement function.
Settling Considerations........................................ When measuring frequency or period after a dc offset voltage change,
errors may occur. For the most accurate measurement, wait up to 1
second for the input blocking capacitor to settle.
Measurement Considerations.............................. To minimize measurement errors, shield inputs from external noise
when measuring low-voltage, low-frequency signals.