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Keysight N2840/1/2/3A and

N2853A High-Impedance

Passive Probes

User’s Guide

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Summary of Contents for N2840A

Page 1: ...Keysight N2840 1 2 3A and N2853A High Impedance Passive Probes User s Guide...

Page 2: ...ercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula The license set forth in the EULA represents the exclusive aut...

Page 3: ...ng the Probe 7 Using the Probe 8 Channel Identification Tags 8 Retractable Hook 9 Ground Spring 9 Alligator Ground Lead 10 BNC Adapter 10 Printed Circuit Board Adapter 11 Dual Lead Adapter 13 Insulati...

Page 4: ...y 5 to 30 pF of input capacitance Handling the Probe Handle the probe with care and refer to the safety notices in this manual The probe cable is a sensitive part of the probe so use care not to damag...

Page 5: ...tip is pre installed on the probe N2840A probes do not include the BNC adapter Two additional accessories not supplied with the probes are available the PCB socket adapter and the dual lead adapter R...

Page 6: ...are the same quantities originally supplied with the probe Table 2 Supplied Accessories Accessory Qty Replacement Order Number Retractable Hook Tip 1 N2858A Replacement Probe Tips 2 N2859A Ground Spr...

Page 7: ...ally Check the accessories If the contents are incomplete or damaged notify your Keysight Technologies Sales Office Inspect the probe If there is mechanical damage or defect or if the probe does not o...

Page 8: ...he colored channel ID tags Snap one color matched tag to each end of the probe s cable as shown in Figure 2 Select the tag color that matches the oscilloscope s channel color Figure 2 Channel ID Tags...

Page 9: ...Barrel Ground Spring The ground spring improves measurement performance by providing a short ground connection The shorter lead reduces the inductance in the ground return path which corresponds to hi...

Page 10: ...er lead increases the inductance in the ground return path this solution results in slightly lower performance than using the ground spring Figure 5 Probe with Alligator Ground Lead Attached BNC Adapt...

Page 11: ...ger ground connection Figure 7 shows the PCB adapter soldered on a PC board Mounting hole dimensions are included in the figure Figure 8 on page 12 shows the PCB adapter plugged onto a solder less bre...

Page 12: ...12 N2840 1 2 3A and N2853A User s Guide Using the Probe Figure 8 PCB Socket Adapter Plugged onto Breadboard...

Page 13: ...ure 9 The adapter s leads are approximately 60 mm long Figure 9 Dual Lead Adapter Insulating Cap The insulating cap fits over the probe tip and covers the grounding band of the probe barrel This enabl...

Page 14: ...vents shorting adjacent pins by preventing the probe tip from sliding between the legs of the component Figure 10 shows how the cap fits around the IC pins Notice where the probe tip comes through the...

Page 15: ...connection If this happens replace the tip with one of the replacement probe tips that are provided with the probe The probe tip screws onto the end of the probe barrel Figure 11 Screw on the Replacea...

Page 16: ...and oscilloscope and introduces measurement errors resulting in inaccurate readings and distorted waveforms Perform LF compensation whenever the probe is connected to the oscilloscope s input for the...

Page 17: ...key to run the compensation 5 If you are using a different oscilloscope display two or three waveform cycles over two to six vertical divisions 6 Use the supplied trimmer tool to adjust the LF Comp to...

Page 18: ...avoid personal injury WARNING Use Only Grounded Instruments Do not connect the probe s ground lead to a potential other than earth ground Always make sure the probe and the oscilloscope are grounded p...

Page 19: ...es visible Do not use the probe when the wear indicator is visible Using a product with a worn cable may result in electric shock fire or equipment failure WARNING Indoor Use Only Do not operate in we...

Page 20: ...z 150 MHz 300 MHz 500 MHz 350 MHz Attenuation Ratio 10 1 Rise Time 10 90 7 ns 2 3 ns 1 2 ns 0 7 ns 1 ns Input Resistance 10 MW Input Capacitance _ 11 pF Compensation Range 5 30 pF Maximum Rated Input...

Page 21: ...ing Curve Measurement CAT II WARNING The maximum input voltage rating of the probe decreases as the frequency of the applied signal increases CAUTION Refer to the oscilloscope documentation for the os...

Page 22: ...xample MYXXXXXXXX Description of failure or service required 3 Protect the probe by wrapping in plastic or heavy paper 4 Pack the probe in the original carrying case or if not available use bubble wra...

Page 23: ...F compensation 16 M maximum input voltage 8 20 21 N N2840A 50 MHz probe 4 20 N2841A 150 MHz probe 4 20 N2842A 300 MHz probe 4 20 N2843A 500 MHz probe 4 20 N2853A 20 N2853A 350 MHz probe 4 20 N2856A ac...

Page 24: ...Index 24 N2840 1 2 3A and N2853A User s Guide...

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