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Introduction

The Keysight Technologies, Inc. B2980A Series of Femto/Picoammeters and Electrometers/High Resistance 
Meters offers not only the best-in-class measurement performance, but also unprecedented measurement 
features that can maximize your measurement confidence as you expect.

The femto/picoammeters and electrometers both offer 0.01 fA (10

-17

 A) minimum current resolution, which 

should meet most of your existing and future low-level current measurement 
needs.

The electrometers feature a 1,000 V voltage sourcing capability that supports up to 10 PΩ (10

16

 Ω) resistance 

measurements. The electrometers also work with Keysight’s well-proven high resistance meter accessories.

The femto/picometer and electrometer/high resistance meter both have battery-powered versions that 
eliminate AC power-line noise. This low-noise environment allows you to make very sensitive, low-level 
measurements that were previously impossible.

Unlike conventional picoammeters and electrometers, the B2980A series features a 4.3” color LCD graphical 
user interface (GUI) enabling various viewing capabilities such as numeric, graph, histogram and roll (trend 
chart), which allows you to easily capture the transient behavior or to efficiently make a quick statistical 
analysis without using an external PC.

This demonstration guide highlights the excellent measurement and triggering capabilities of the B2980A 
series. The methodology involves sending an electronic trigger signal to a B2980A series electometer and 
making a current measurement. In this example, the electrometer receives an external trigger signal  with 
specific timing parameters, such as 500 ms measurement delay, while sourcing 1 V across 100 GΩresistor.

Required Instrument and Accessories

All of the accessories required to perform the demos described in this demonstration guide are provided in a demo kit 
that is included with Keysight B2987A demo units except for the external trigger source.

Keysight B2987A Electrometer

B2981-61715

Banana to lug cable

16494A-001 Triax cable

16493B-001 Coaxial cable

N1422A High resistance demo kit

U8201-60001

Xtention lead set for straight plugs

Содержание B2980A Series

Страница 1: ...Keysight Technologies Using an External Trigger to Measure Current with B2980A Series B2980A Femto Picoammeter and Electrometer High Resistance Meter Demo Guide...

Страница 2: ...ctrometers the B2980A series features a 4 3 color LCD graphical user interface GUI enabling various viewing capabilities such as numeric graph histogram and roll trend chart which allows you to easily...

Страница 3: ...l need to configure the B2985A 87A ammeter to accept an external trigger and make a current measurement Figure 3 shows the external trigger signal requirements to initiate a current measurement from t...

Страница 4: ...ce Low terminal to the Common terminal of the B2985A 87A with a black banana test lead 3 Connect the Ammeter Input terminal of the B2985A 87A to the J1 terminal of the N1422A with a triaxial cable 4 C...

Страница 5: ...ernal trigger signal 6 Optional Abort the ammeter to stop waiting for an external trigger signal 7 Optional If you d like to change aperture mode 8 Optional If you d like to change measurement range o...

Страница 6: ...ss to edit it Then enter 1 s to set the Measure trigger period to 1 s which should be longer than the sum of the measurement delay time and the aperture time 5 Rotate to select the Measure trigger sou...

Страница 7: ...ave your settings 10 Rotate to select the Measure trigger count and press to edit it Then enter the Number of trigger signals which will be sent to the instrument as the Measure trigger count 11 Or pr...

Страница 8: ...current across it 1 Rotate to select the Voltage source and press to edit it 2 Then rotate until the Voltage Source value reaches 1 V and press to fix it 3 Press Voltage Source to enable Voltage Sourc...

Страница 9: ...end of the test 1 Press and then press to make the ammeter stop waiting for an external trigger signal 7 Optional If you d like to change the aperture mode The automatic aperture mode is selected in t...

Страница 10: ...ment navigation key to select longer aperature type 3 For example if you d like to select the manual aperture mode press 4 If you d like to set the mode to the automatic aperture mode again press 5 If...

Страница 11: ...g on the current measurement result If the mode is set to FIXED the current measurement range is fixed to the one specified by the user during the measurement 1 Press to hide Trigger Parameters 2 Pres...

Страница 12: ...in the B2980A Series to wait for an external trigger signal The series of commands shown in group D E and F are optional to abort the ammeter to stop waiting for an external trigger signal to change t...

Страница 13: ...easurement features that can maximize your measurement confidence The 0 01 fA 10 17 A minimum current resolution is available for both Femto Picoammeters and Electrometers High Resistance Meters and s...

Страница 14: ...0260637 For other unlisted countries www keysight com find contactus BP 9 7 17 DEKRA Certified ISO9001 Quality Management System www keysight com go quality Keysight Technologies Inc DEKRA Certified...

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