Agilent Technologies 1145A User'S And Service Manual Download Page 1

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User and Service Guide

Publication number 01145-92005

May 2014

For Safety, Regulatory, and publishing information, see the pages at the back of
this book.

1145A 2-Channel Active Probe

Summary of Contents for 1145A

Page 1: ...ublication number 01145 92005 May 2014 For Safety Regulatory and publishing information see the pages at the back of this book Copyright Agilent Technologies Company 2000 2014 All Rights Reserved 1145...

Page 2: ...ntents Specifications 4 Characteristics 4 General Characteristics 5 Operating the Probe 6 Probe Power Connection 8 Cleaning the Probe 8 Service Strategy 8 Adjustments 11 Calibration Testing Procedures...

Page 3: ...instruments you can use the 1142A power supply Accessories Supplied Accessories Available You can order the following accessories from Agilent Technologies E F Johnson socket adapter Agilent Technolog...

Page 4: ...ndwidth and risetime degrade approximately 1 2 C 2 Rise time figure calculated from tr 0 35 Bandwidth 3 When connected to an instrument input of 50 0 5 Characteristics Input Capacitance 2 pF typical O...

Page 5: ...ty at 65 C 149 F Altitude up to 4 600 meters 15 000 ft up to 15 300 meters 50 000 ft Vibration Random vibration 5 to 500 Hz 10 minutes per axis 0 3grms Random vibration 5 to 500 Hz 10 min per axis 2 4...

Page 6: ...5A 2 Channel Active Probe Operating the Probe Operating the Probe The following information will help you get the most out of your measurement when operating the probe Typical Input Impedance vs Frequ...

Page 7: ...to voltages within the specified working voltage Though the probe is designed with safeguards against static electricity and noise the input is sensitive to and may be damaged by excessive voltage CA...

Page 8: ...rvice Strategy If your probe fails during warranty normal warranty service apply If the probe is not under warranty when it fails you can order any of the following parts from Agilent Technologies Pin...

Page 9: ...the faulty probe lead from the bonding pas on the printed circuit assembly 4 Because the ground legs plug into small sockets under the cable use a pair of needle nose pliers to lift the faulty probe...

Page 10: ...all cables Do not include accessories unless they are associated with the failure symptoms 3 Protect the instrument by wrapping it in plastic or heavy paper Anti static wrapping or packaging is strong...

Page 11: ...5 minutes prior to beginning adjustments Equipment Required CAUTION The adjustments are easily damaged if you use the wrong tool or any force at all Make sure you use the adjustment tools that are par...

Page 12: ...T Trigger Mode Auto Time base Slope Pos Period 50 ms Time div 5ms div HF sense Off Delay 0 Delay Min HF Reject Off Width DS C 50 Sweep Trg d Trigger level 260 mV High 1 V Channels Display Mode Low 0 V...

Page 13: ...st set 3 Adjust GAIN for a flat pulse If you turn on the DeltaV marker you can use it as a reference for a flat line 4 Change the pulse generator to 50 s period and change the scope to 5 s div 5 Adjus...

Page 14: ...op of the probe body then measure the pulse rise time The rise time should be 470 ps and overshoot about 9 to 10 You may need to remove the cover and make minor adjustments to RA RB and DAMP to meet s...

Page 15: ...ure and maintain peak performance The recommended test interval is yearly or every 2 000 hours of operation The amount of use environmental conditions and the user s experience concerning need for tes...

Page 16: ...uracy Specification Equipment Required Equipment Critical Specification Recommended Model Part Digital Multimeter Resistance 1 34401A Equipment Critical Specification Recommended Model Part Digital Mu...

Page 17: ...the DMM measure the probe s dc output offset voltage on channel 1 Probe output offset voltage ___________ Typically the offset will be much less than 1 mV 4 Connect the probe s channel 1 input connect...

Page 18: ...ccuracy 436A 2 437A 2 or 438A 1 or equivalent Power Sensor 2 50 MHz to 800 MHz 300 mW 8482A Power Splitter Type N dc to 800 MHz 0 2 dB tracking 11667A Power Supply Power for probe under test Oscillosc...

Page 19: ...ower output for exactly 6 0 dBm as read on the input power meter 7 Note the power level reading on the output power meter 50 MHz power level _____________ dBm 8 Change the signal generator frequency t...

Page 20: ..._ Recommended Test Interval 1 Year Recommended Date of Next Certification _________ Certification Temperature _____________________ _______________________________ _______________________________ Test...

Page 21: ...5 EN 61000 4 5 1995 IEC 61000 4 6 1996 EN 61000 4 6 1996 IEC 61000 4 11 1994 EN 61000 4 11 1994 Canada ICES 001 1998 Australia New Zealand AS NZS 2064 1 Limit Group 1 Class A 1 4kV CD 8kV AD 3V m 80 1...

Page 22: ...1 A B A A A A Safety IEC 348 1978 HD 401 S1 1981 UL1244 CSA C22 2 No 231 Series M 89 Performance Codes A PASS Normal operation no effect B PASS Temporary degradation self recoverable C PASS Temporary...

Page 23: ...ust be connected to the earth terminal of the power source Whenever it is likely that the ground protection is impaired you must make the instrument inoperative and secure it against any unintended op...

Page 24: ...n this document is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by appli cable law Agilent dis claims all warranties either...