Instructions

8845A/8846A
Users Manual
1-22
Capacitance (8846A Only)
Accuracy is stated as ±(% of measurement + % of range)
Range Resolution
1 Year Accuracy
[1]
(23 ±5 °C)
Temperature Coefficient/ °C
Outside 18 to 28 °C
1 nF 1 pF
2% ± 2.5 %
0.05 + 0.05
10 nF 10 pF
1% ± 0.5 %
0.05 + 0.01
100 nF 100 pF
1% ± 0.5 %
0.01 + 0.01
1 μF
1 nF
1% ± 0.5 %
0.01 + 0.01
10 μF
10 nF
1% ± 0.5 %
0.01 + 0.01
100 μF
100 nF
1% ± 0.5 %
0.01 + 0.01
1 mF
1 μF 1% ± 0.5 %
0.01 + 0.01
10 mF
10 μF 1% ± 0.5 %
0.01 + 0.01
100 mF
100 μF 4% ± 0.2 %
0.05 + 0.05
[1] Stated accuracy is attained when Zero function is used.
Temperature (8846A only)
Test Current ............................................................ 1 mA
Accuracy is stated as ± °C and is based on a Platinum RT100 (DIN IEC 751, 385 type) RTD with less than 10 ohms lead
resistance. The accuracy listed in the table below are valid only when using the 4-wire RTD measurement function.
Specifications do not include probe accuracy, which must be added.
Accuracy
Range Resolution
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
Temperature
Coefficient/ °C
Outside 18 to 28 °C
-200 °C 0.001 °C
0.06
0.09 0.0025
-100 °C 0.001 °C 0.05 0.08 0.002
0 °C 0.001 °C 0.04 0.06 0.002
100 °C 0.001 °C 0.05 0.08 0.002
300 °C 0.001 °C 0.1 0.12 0.002
600 °C 0.001 °C 0.18 0.22 0.002
Additional Errors
Digits NPLC Additional NPLC Noise Error
6 ½ 100 0 °C
6 ½ 10 0 °C
5 ½ 1 0.03 °C
5 ½ 0.2 0.12 °C
4 ½ 0.02 0.6 °C
Continuity
Continuity Threshold ............................................... Selectable between 1 Ω and 1000 Ω
Test Current ............................................................ 1 mA
Response Time....................................................... 300 samples/sec with audible tone
Accuracy is given as ± (% measurements + % of range)
Range
24 Hour
(23 ±1 °C)
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
Temperature
Coefficient/ °C
Outside 18 to 28 °C
1000.0 Ω 0.002 + 0.01 0.008 + 0.02 0.01 + 0.02
0.001 + 0.002