Picoammeter
B2981B
The B2981B Femto/Picoammeter is the world’s only graphical picoammeter that allows you to confidently measures small currents with 0.01 fA (0.01 x 10-15 A) resolution. It possesses a 4.3” color LCD with a graphical user interface that provides trend chart and histogram data in addition to numeric information. These front-panel capabilities enable you to capture transient behavior and perform quick statistical analyses without a PC. The available Setup Integrity Checker software option allows you to compare the noise levels of different cabling and fixturing arrangements to help isolate external noise sources.
Measurement Capabilities
- 0.01 fA minimum measurement resolution
- 20,000 readings/s
- < 20 μV burden voltage
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Model |
Femto/Picoammeter |
Electrometer/High Resistance Meter |
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|
B2981B |
B2983B |
B2985B |
B2987B |
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|
Measurement resolution |
6½ digits |
6½ digits |
6½ digits |
6½ digits |
|
Current measurement |
0.01 fA - 20 mA |
0.01 fA - 20 mA |
0.01 fA - 20 mA |
0.01 fA - 20 mA |
|
Minimum range |
2 pA |
2 pA |
2 pA |
2 pA |
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Resistance measurement |
|
|
Up to 10 PΩ |
Up to 10 PΩ |
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Voltage measurement |
|
|
1 μV - 20 V |
1 μV - 20 V |
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Input resistance |
|
|
> 200 TΩ |
> 200 TΩ |
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Charge measurement |
|
|
1 fC - 2 μC |
1 fC - 2 μC |
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Temperature measurement |
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|
√ |
√ |
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Humidity measurement |
|
|
√ |
√ |
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Voltage source |
|
|
Up to ±1,000 V |
Up to ±1,000 V |
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Minimum resolution |
|
|
700 μV |
700 μV |
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Maximum reading rate |
20,000 rdg/s |
20,000 rdg/s |
20,000 rdg/s |
20,000 rdg/s |
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Battery operation |
|
√ |
|
√ |
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Other key features |
Graphical capability (Meter View, Graph View, Histogram View, Roll View), Auto navigation, 100,000 points sample buffer, Interface (USB, LAN, GPIB, LXI Core), Free PC control software, etc. |
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