Tabor Electronics 9250, User Manual

Page 1: ...abor Electronics Ltd P O Box 404 Tel Hanan Israel 20302 Tel 972 4 821 3393 FAX 972 4 821 3388 PUBLICATION DATE December 10 2004 Copyright 2003 by Tabor Electronics Ltd Printed in Israel All rights res...

Page 2: ...its customers dealers and representatives and to users of its product and to any other person or persons for special or consequential damages of any kind and from any cause whatsoever arising out of o...

Page 3: ...sion cord or a three prong two prong adapter This will defeat the pro tective feature of the third conductor in the power cord Maintenance and calibration procedures sometimes call for operation of th...

Page 4: ...ective 73 23 EEC amended by 93 68 EEC Compliance was demonstrated to the following specifications as listed in the official Journal of the European Communities Safety IEC EN 61010 1 2nd Edition 2001 C...

Page 5: ...ectors 1 8 Line Receptacle and Fuse 1 9 Auxiliary Inputs Channel 1 1 9 Auxiliary Inputs Channel 2 1 10 Differential Outputs Switch 1 10 Grounding Considerations 1 10 Operating 1 11 Instructions 1 11 C...

Page 6: ...Output Impedance 3 6 Test Results 3 6 Gain Accuracy 3 6 Test Results 3 7 Test Results 3 7 Test Results 3 7 Square wave Characteristics 3 7 Test Results 3 8 Output Distortion 3 8 Test Results 3 8 Outpu...

Page 7: ...le 2 1 Input Impedance Jumpers 2 7 Table 2 2 Output Impedance Jumpers 2 7 Table 2 3 Input coupling Jumpers 2 8 Table 2 4 Output coupling Jumpers 2 8 Table 3 1 Recommended Test Equipment 3 5 Table 3 2...

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Page 9: ...puts for each channel 1 Main input This input is located on the front panel is normally be used for signal inputs 2 Auxiliary input This input is located on the rear panel and can be used as a summing...

Page 10: ...nel only 9250 Feature Highlights Bench top all metal case Large signal bandwidth to 20 MHz Small signal bandwidth to 50 MHz High amplitude to 40Vp p high impedance Low distortion Custom Configuration...

Page 11: ...to your circuits Configuration Options The Model 9250 must be ordered from the factory already configured for your application This manual has no schematics and no instructions how to modify the ampl...

Page 12: ...f warm up time and within a temperature range of 20 C to 30 C Specifications outside of the temperature range are degraded by 0 1 per C Front Panel Connectors The 9250 has 4 BNC connectors on its fron...

Page 13: ...erefore before applying the cable to the input connector make sure your signal will not exceed input rating as specified in Appendix A of this manual Note Channel 2 Input is disabled when the 9250 is...

Page 14: ...on inductive or capacitive loads may damage the amplifier Channel 2 Output The channel 2 output connector outputs amplified signals When the 9250 is configured as two separate amplifiers this output...

Page 15: ...front panel The POWER LED will light as soon as you press the switch to power up the 9250 An illuminated power light designates power is applied to the instrument and you should expect to have signal...

Page 16: ...OFFSET The INPUT connector can be used as summing input to the front panel signal It also can be used as the main input if connectors are available on the back only However the output is always from t...

Page 17: ...ified Differential Outputs Switch The Differential Outputs switch has two actions In normal mode it separates between the two channels so each channel can be used separately In Differential Mode this...

Page 18: ...or input and output impedance and gain 2 Follow the installation instructions given in Chapter 2 of this manual 3 Connect the output terminal to your load 4 Connect the input terminal to your source 5...

Page 19: ...ing slip to determine that the shipment is complete Safety Precautions The following safety precautions should be observed before using this product Although some instruments and accessories would nor...

Page 20: ...ep your hands dry while handling the instrument When using test fixtures keep the lid closed while power is applied to the device under test Carefully read the Safety Precautions instructions that are...

Page 21: ...llution occurs Occasionally a temporary conductivity caused by condensation must be expected Power Requirements The function generator may be operated from a wide range of mains voltage 90 to 264Vac V...

Page 22: ...cs Representative or the Tabor Electronics Customer Service Department 1 Repack the instrument using the wrappings packing material and accessories originally shipped with the unit If the original con...

Page 23: ...actory The following are factory configured settings Gain The default gain setting is x10 The 9250 can be ordered with different gain values up to x20 Bear in mind that gain x bandwidth product remain...

Page 24: ...eld Configuration of the 9250 Settings Limited flexibility is available for you as the user to change 9250 configuration in the field Changing configuration involves the opening of the top cover and t...

Page 25: ...he Outputs Place the jumpers as required according to the table 2 2 Table 2 2 Output Impedance Jumpers Impedance CH1 CH2 50 J20 J9 75 J21 2 3 J10 2 3 600 J21 1 2 J10 1 2 Configure Input Output Couplin...

Page 26: ...n the rear panel to illuminate Pressing the switch again will disable the differential mode and allow each amplifier to operate separately The differential source impedance must be adjusted in the fac...

Page 27: ...AT A STATIC SAFE WORKSTATION Disassembly Instructions If it is necessary to troubleshoot the instrument or replace a component use the following procedure to remove the side panels 1 Using a Phillips...

Page 28: ...only at a properly grounded workstation 3 Remove a device by grasping the body do not touch the pins 4 Any printed circuit board into which the device is to be in serted must also be grounded to the...

Page 29: ...ime to avoid damage to the components or printed conductors 3 To de solder components use a commercial solder sucker or a solder removing SOLDER WICK size 3 4 Always replace a component with an exact...

Page 30: ...d performance checking is listed below Test instruments other than those listed may be used only if their specifications equal or exceed the required characteristics Table 33 31 Recommended Test Equip...

Page 31: ...ass Fail Gain Accuracy Equipment DMM Function generator Preparation 1 Configure the Function Generator as follows 2 Function Sine wave 3 Frequency 1kHz 4 Amplitude 2Vp p 5 Connect function generator o...

Page 32: ...el 1 2 output to the oscilloscope input 19 Configure the Function Generator as follows 20 Function Square wave 21 Frequency 1MHz 22 Amplitude 2Vp p 23 Connect the function generator to the 9250 channe...

Page 33: ...rator Distortion Reading Frequency Setting Reading Limits CH 1 Output CH 2 Output Pass Fail 10 00Hz 0 1 100 0Hz 0 1 1 000kHz 0 1 10 00kHz 0 1 100 00kHz 0 1 2 Remove the cables from the front panel inp...

Page 34: ...8 Portrayal Table 3 4 Front Panel Sine wave Spectral Purity Test Spectrum Analyzer Sine Freq Reading Limits Start Stop CH 1 CH 2 Pass Fail 1MHz 55dBc 100K 10M 5MHz 40dBc 1M 20M 10MHz 35dBc 1M 50M 50M...

Page 35: ...and at relative humidity of less than 80 Turn on the power to the 9250 and allow it to warm up for at least 30 minutes before beginning the adjustment procedure If the instrument has been subjected t...

Page 36: ...hannel 1 input 41 Connect the 9250 channel 1 through the x10 attenuator to the oscilloscope 42 Set oscilloscope to dc coupling and 50 termination Adjustment 1 Adjust RV6 for best flatness of the squar...

Page 37: ...ng and 50 termination Adjustment 1 Adjust RV5 RV8 and C77 for transition time between 18 20ns and lowest aberrations CH2 Low Frequency Response Equipment Oscilloscope waveform generator x10 attenuator...

Page 38: ...3 Set oscilloscope to dc coupling and 50 termination Adjustment 1 Adjust RV7 for dc offset of 8V 1 2 small division Channel 2 Auxiliary Offset Adjustment Equipment Oscilloscope waveform generator x10...

Page 39: ...or 600 Differential 600 Coupling DC or AC Protection Short circuit 10 seconds Gain x10 fixed can be ordered from factory with different gain setting Bandwidth may change with different gain configurat...

Page 40: ...ked Reliability MTBF per MIL HDBK 217E 25 C Ground Benign Safety Designed to meet IEC EN61010 1 UL 3111 1 Workmanship Std Conform to IPC A 610D Warranty 3 years standard Extended warranty available up...