Tektronix P6015 User's Manual
Contents
1. v M i ee E ls ee E z 3 MUR P x b E EM c zt Tektronix Inc att PO Box 500 __ Beaverton Oregon 97005 xo 070 0373 02 _ Serial Number ere E INSTRUCTION MANUAL E IE x da F E t o KCN E o E 1 Y M h je Dos a 1 wt WARRANTY All TEKTRONIX instruments are warranted against defective materials and workmanship for one year Any questions with respect to the warranty should be taken up with your TEKTRONIX Field Engineer or representative All requests for repairs and replacement parts should be directed to the TEKTRONIX Field Office or representative in your area This will assure you the fastest possible service Please include the instrument Type Number or Part Number and Serial Number with all requests for parts or service Specifications and price change privileges reserved Copyright 1963 new material 1974 by Tektronix Inc Beaverton Oregon Printed in the United States of America All rights reserved Contents of this publication may not be reproduced in any form without permission of Tektronix Inc gt U S A and foreign TEKTRONIX products covered by U S and foreign patents and or patents pending TEKTRONIX is a registered trademark of Tektronix Inc NOTICE Use only FLUOROCARBON 114 C CL Fa2. 78947 Ucinite Co The A United Carr Div of TRW Inc 459 Watertown St Newtonville MA 02160 80009 Tektronix Inc P O Box 500 Beaverton OR 97005 83385 Central Screw Co 2530 Crescent Dr Broadview IL 60153 95712 Bendix Corp The Electrical Components Div Microwave Devices Plant Hurricane Road Franklin IN 46131 Parts List and Schematic P6015 4 3 PROBE PACKAGE RN a sli EK S um si A t n VAT E TY HD Cou L9 c o a o f E o lt o a c 2 2 i tg a re PROBE PACKAGE Fig amp l Index Tektronix Serial Model No E Mfr No Part No Eff Dscont QY i23255 Name amp Description Code Mfr Part Number 010 0172 00 1 PROBE PACKAGE P6015 BNC 80009 010 0172 00 010 0132 00 L PROBE PACKAGE P6015 UHF 80009 010 0132 00 PROBE PACKAGE INCLUDES 1 010 0131 00 l PROBE P6015 80009 010 0131 00 2 015 0049 00 1 COMP TEST LEAD BNC 80009 015 0049 00 015 0039 00 Mu COMP TEST LEAD UHF 80009 015 0039 00 3 252 0120 00 nn Dee Pe TECHNICAL 02958 202X22124 256 0570 00 7401X 1 JELL SILICA not shown 4 344 0005 00 7 uuu 7 lU CLAP ELECTRICAL 80009 344 0905 00 5 352 0056 00 1 HOLDER TEST PRO 80009 352 0056 00 6 202 0139 00 6834X 1 CARRYING CASE 80009 202 0139 00 436 0035 00 6834X 4 TRAY ACCESSORY 80009 426 0035 00 016 0128 00 X6835 7401 1 CARRYING CASE 80009 016 0128 00 004 0217 00 7401X i
3. 7 Q Ohm w With AJ i Section 4 P6015 4 1 X000 x000 000X 000 000 Use 000 000 0 4 2 SPECIAL NOTES AND SYMBOLS Part first added at this serial number Part first added at this serial number Part removed after this serial number Asterisk preceding Tektronix Part Number indicates manufactured by or for Tektronix also reworked or checked components Part number indicated is direct replacement internal screwdriver adjustment Parts List and Schematic P6015 CROSS INDEX MFR CODE NUMBER TO MANUFACTURER MFR CODE MANUFACTURER ADDRESS CITY STATE ZIP 01121 Allen Bradley Co 1201 2nd St South Milwaukee WI 53204 01295 Texas Instruments Inc Components Group P O Box 5012 Dalias TX 75222 02958 Rudd Paint and Varnish Co 1608 15th W Seattle WA 98119 12697 Clarostat Mfg Co Inc Lower Washington St Dover NH 03820 50293 Standard Pressed Steel Aerospace i Products Div Highland Ave Jenkinstown PA 19046 63060 VLN Corp Victoreen Instrument Div 10101 Woodland Ave Cleveland OH 44104 71590 Centralab Electronics Div of Globe Union Inc l 5757 N Green Bay Ave Milwaukee WI 53201 72136 Electro Motive Mfg Co Inc The South Park and John Streets willimantic CT 06226 73743 Fischer Special Mfg Co 446 Morgan St Cincinnati OH 45206 74868 Bunker Ramo Corp The Amphenol RF Div 33 E Franklin St Danbury CT 06810 78189 Illinois Tool Works Inc Shakeproof Division St Charles Road Elgin IL 60126
4. capability b example of risetime exceeding the probes capability 2 4 Operating instructions P6015 MAINTENANCE introduction Normally the P6015 Probe requires very little main tenance except for a visual and operational check This section is provided as a maintenance guide and contains procedures for visual inspection recharging the probe with dielectric fluid and troubleshooting Visual Inspection A thorough visual inspection of the probe should be performed periodically Look for such things as loose or broken connections damaged plastic insulators and proper dielectric fluid level Except for low fluid level the remedy for most of these troubles is apparent Check the dielectric fluid level by holding the probe with the tip down There should be liquid visible through the transparent nose If not it is essential for you to determine the cause of the fluid loss before adding more Temperature as well as a leak could affect the liquid level See Recharging the Probe for details and procedures for adding fluid Use only Fluorocarbon 114 C CL Fa dielectric fluid Use of other Fluorocarbon fluids may develop excessive internal pressure Recharging the Probe Fluorocarbon 114 has a saturation pressure of about 2 atmospheres at room temperature At room temperature a small amount of liquid should be visible through the transparent nose of the probe when the probe tip is pointed down Any liquid vis
5. 39 00 UHF 2015 0049 00 BNC ELECTRICAL PARTS LIST Tektronix Serial Model No Mfr Ckt No Part No Eff Dscont Name amp Description Code Mfr Part Number cl 281 0023 06 CAP VAR MICA D 9 180PF 72136 752310 C2 281 0044 00 CAP VAR MICA D 80 480PF 72136 T52610 c3 281 0023 00 CAP VAR MICA D 9 180PF 72136 4752310 RL 311 0325 00 RES VAR NONWIR 2 5M OHM 20 12697 CM33090 R2 311 0325 00 RES VAR NONWIR 2 5M OHM 20 12697 CM33090 R3 311 0150 00 RES VAR NONWIR 500 OEM 20 71590 BA305 016 RA 309 0045 00 7345 RES FXD FILM 100K OHM 1 0 50W 01295 CD1 2MR1003F R4 323 0385 00 7346 RES FXD FILM l00K OHM 1 0 5QW 75042 CECTO 1003F R5 311 0337 00 RES VAR NONWIR 20K OHM 20 71590 BA305 036 R6 304 0151 00 6423 RES FXD COMP 150 OHM 10 1W 01121 GB1511 R6 302 0151 00 6424 RES FXD COMP 150 OHM 10 0 50W 01121 EB1511 RLOO 310 0597 00 RES FXD FILM LOOM OHM 1 50 000V 63060 MOX 4SP 4 10 Parts List and Schematic P6015 REV C OCT 1974 PROBE BODY CABLE ASSEMBLY te mases t 5 JIM SOLE FT RIOO IOOM PLM 263 Pool S PROBE Parts List and Schematic P6015 4 11
6. 50 us div and display the leading corner of the square wave Adjust R1 C3 and C1 for the sharpest leading corner without overshoot see Fig 2 1 Each may have to be adjusted several times for the sharpest corner Maintain 2 divisions of deflection at the leading edge The R1 C3 combination affects the very corner and C1 affects the area immediately following with some overlap 4 Set the sweep rate of the oscilloscope for 0 2 ms div and adjust R2 and C2 to level the trailing 2 divisions of the top of the square wave 5 Set sweep for 0 2 ms div Adjust C3 and C1 for a flat top on the square wave 6 Any remaining aberrations may be corrected by slight readjustment of C1 R2 2 R1 and C3 Fig 2 1 Pulse area affected by each compensation adjustment The preceding steps da not include high frequency peaking adjustment R3 The affect of R3 is apparent only with risetimes faster than about 0 1 microsecond Conse quently the calibrator signal is not fast enough for this adjustment The most desirable signal source is a fast rise pulse generator with enough charge line to generate at least a 100 ns pulse However the 1 MHz output of a Tektronix Square Wave Generator terminated in 50 ohms is also adequate With any of these generators it is advantageous to have a plug in unit with a sensitivity greater than 0 05 volt div such as the Tektronix 7A13 R3 should be 2 2 Operating Instructions P6015 adjusted while observing th
7. 61 0047 00 2 POST ELEC MECH 0 125 DIA X 0 420 INCH LONG 80009 361 0047 00 8 441 0467 00 l1 CHAS ELEC EQUIP 80009 441 0467 60 ATTACHING PARTS 9 210 0410 00 2 NUT PLAIN HEX 10 32 X 0 312 INCH BRS 73743 2X20003 402 10 210 0010 00 4 WASHER LOCK INT 0 20 ID X 0 376 OD STL 78189 12210 00 00 0541C gt a ll 2 RES VAR SEE EPL Rl AND R2 ATTACHING PARTS FOR EACH 12 210 0583 00 l NUT PLAIN HEX 0 25 32 X 0 312 INCH BRS 73743 2X20319 402 22 13 eo 2 RES VAR SEE EPL R3 AND R5 ATTACHING PARTS FOR EACH 14 210 0504 00 2 NUT PLAIN HEX 0 8 X 0 156 INCH BRS 73743 3004 402 015 0039 00 UHF 015 0049 00 BNC Parts List and Schematic P6015 4 9 COMPENSATING BOX Fig amp Index Tektronix Serial Model No un Mir No Part No Eff Dscont QY 12345 Name amp Description Code Mfr Part Number 15 175 0264 00 l CABLE ASSY RF 80009 175 0264 00 ATTACHING PARTS 16 210 0012 00 l WASHER LOCK INTL 0 375 ID X 0 50 OD STL 78189 1220 02 00 0541C 17 210 0590 00 1 NUT PLAIN HEX 0 375 X 0 438 INCH STL 73743 2X 28269 402 a e m ao om 18 380 0045 001 l HOUSING COMPENS WRAPAROUND 80009 380 0045 00 380 0063 00 1 EOUSING COMPENS WRAPAROUND 80009 380 0069 00 19 200 0438 00 l COV BOX FBONT 80009 200 0438 00 20 200 0440 00 l PLATE IDENT 80009 200 0440 00 21 211 0071 00 2 SCREW MACHINE 4 40 X 0 375 INCH PES STL 83385 OBD 1915 00
8. PAD STORAGE CASE not shown 80009 004 0217 00 016 0128 01 7402 NE CARRYING CASE 80009 016 0128 01 070 0373 01 7401 1 MANUAL INSTRUCTION not shown 80009 070 0373 01 070 0373 02 7402 MANUAL INSTRUCTION not shown 80009 070 0373 02 Parts List and Schematic P60 15 4 5 46 PROBE Parts List and Schematic P6015 Fig amp Index Tektronix Serial Model No No Part No Eff Dscont Qty 010 0131 00 1 1 175 0592 00 L 2 204 0151 00 1 3 354 0189 00 i 4 204 0158 00 L 5 166 0301 00 1 6 204 0157 00 1 7 337 0559 00 1 8 344 0091 00 i 9 214 0318 00 l 10 o 1 11 134 0015 00 i 12 214 0310 00 1 13 211 0008 00 14 361 0046 00 15 213 0115 00 16 354 0191 00 17 358 0205 00 18 131 0264 00 19 354 0190 00 20 206 0116 00 21 367 0034 00 22 134 0068 00 A Free PNHNN 1 2 PROBE 34 5 Name amp Description PROBE P6015 HV LEE PROBE INCLUDES LEAD ELECTRICAL BODY TEST PROD RING CUSHION 1 3652D X 1 50 INCH OD BODY ASSY ASSEMBLY INCLUDES SLEEVE SHIELD PROBE BODY INNER SHIELD RESISTOR CLIP ELECTRICAL RESISTOR AND PLUG ASSY ASSEMBLY INCLUDES RESISTOR SEE EPL R100 PLUG TIP SMALL BANANA MALE LEAF CAP ASSY ATTACHING PARTS SCREW MACHINE 4 40 X 0 25 INCH PNH STL SPACER NONMETAL 0 125D X 0 500 INCHES LG SETSCREW 4 40 X 0 312 INCH HEX SOC STL GASKET 1 170ID X 1 445 INCHES OD Se m uc BUSHING CASE CONNECTOR RCPT MALE BNC
9. RING SECURING TIP TEST PROD HANDLE TEST PRO GROMMET PLSTC 1 250D X 6911D X 700 LG Parts List and Schematic P6015 Mfr Code 80009 80009 80009 80009 80009 80009 80009 80009 80009 80009 78947 80009 83385 80009 50293 80009 80009 74868 80009 80009 80009 80009 Mfr Part Number 010 0131 00 175 0592 00 204 0151 00 354 0189 00 204 0158 00 166 0301 00 204 0157 00 337 0559 00 344 0091 00 214 0318 00 152004 UF4 214 0310 00 OBD 361 0046 00 OBD 354 0191 00 358 0205 00 31 102 354 0190 00 206 0116 00 367 0034 00 134 0068 00 COMPENSATING BOX Parts List and Schematic P6015 4 8 COMPENSATING BOX Fig amp Index Tektronix Serial Model No ES Mfr No Part No Eff Dscont Qty 2345 Name amp Description Code Mfr Part Number 015 0039 00 l COMP TEST LEAD UHF 80009 015 0039 00 015 0049 00 l COMP TEST LEAD BNC 80009 015 0049 00 m m COMPENSATING BOX INCLUDES 1 131 0168 001 1 CONNECTOR PLUG MALE BNC 80009 131 0168 00 131 0319 002 1 CONNECTOR RCPT MALE BNC 80009 131 0319 00 2 200 0026 001 l SHELL ELEC CONN MALE CONNECTOR 95712 1227 18 3 102 0006 00 1 BSHG ELEC CNDCT REDUCER 80009 102 0006 00 4 210 0012 00 l WASHER LOCK INTL 0 375 ID X 0 50 OD STL 78189 1220 02 00 0541C 5 210 0413 00 l NUT PLAIN HEX 0 375 32 X 0 50 INCH STL 73743 3145 402 6 200 0439 00 l COV BOX REAR 80009 200 0439 00 7 3
10. T Input Resistance 100 megohms 13 0 Input Capacitance Approximately 3 pF N N N N N E T I I T x I I o a x x 2 d 2 8 o o Maximum Input Voltage DC or RMS 20 kV see ui derating chart Fig 1 2 for frequencies above 100 kHz Fig 1 2 Derating Chart for P6015 Probe Section 1 P6015 l 1 1 A e Mechanical Characteristics Dimensions of Compensating Box 1 13 16 x 1 5 8 x 3 9 1 6 inches l Maximum Diameter of Probe Body 3 1 2 inches dia meter of guard flange Length of Probe Body 13 1 2 inches Length of Interconnecting Cable Nominally 10 feet Saturation Pressure of Inert Gas Approximately 2 atmospheres at room temperature Output Connector Type BNC and UHF type Weight of Assembly 1 pound 13 ounces Characteristics P6015 OPERATING INSTRUCTIONS Compensation Check the compensation of the P6015 Probe each time it is used with a different plug in unit or oscilloscope Compensation should be checked occasionally during normal use since changes in ambient temperature can also affect compensation Proper compensation matches the capacitive attenuation ratio to the resistive attenuation ratio The P6015 Compensating Box contains seven adjustable components All except R5 see schematic vary the time constant of RC networks The adjustable components and their affect on a 1kHz square wave see Fig 2 1 are as follows C3 Part of an RC networ
11. as dielectric fluid Use of other FLUOROCARBON fluids may develop dangerous pressures Exceeding Voltage and Temperature specifications may result in dangerous internal pressures developed in the Probe body P6015 Fa a E A ER EE eA SEE Fig 1 1 P6015 Probe P6015 CHARACTERISTICS The P6015 High Voltage Probe Fig 1 1 is a 1000X Maximum Input Voltage pulse 40 kV peak maximum attenuator probe that adds high voltage capabilities to duty factor 10 maximum pulse duration 0 1 s oscilloscopes or plug in units with input resistances of 1 i megohm and input capacitances of up to 50 picofarads pf 1 The body of the P6015 Probe is made of high impact Bandpass with 7704A Oscilloscope and 7A13 Plug In DC to 75 megahertz flat within 2 strength thermoplastic material that provides mechanical protection for the internal components of the probe and electrical protection for the user Dielectric properties of Risetime with 7704A Oscilloscope and 7A13 Plug In the probe are improved by filling the probe with fluoro Approximately 4 67 nanoseconds carbon gas The complete probe assembly consists of the probe body a 10 foot interconnecting cable with resistive center conductor and the compensating box Temperature Range 10 C to 55 C Electrical Characteristics Attenuation Ratio 1000 1 variable by about 9 20kV 10 kV CONTINUOUS RMS VOLTAGE DERATING VERSUS FREQUENCY AT 25 C AMBIEN
12. e generator output signal at a sweep rate of 0 1 us div R3 should be turned as far as possible in the counter clockwise direction without causing overshoot on the leading corner of the waveform Only minor if any readjustment of the controls is necessary when the P6015 Probe is operated with plug in units with nominal input capacitance When switching between plug in units with different input capacitance compensate the probe by adjusting C3 If the gain of the plug in units differ match the gain of the plug in to the probe rather than adjusting R5 Adjusting R5 will require readjusting the remaining controls Using the P6015 Probe When making amplitude measurements with the P6015 Probe multiply the amplitude of the display by the attenuation factor of the probe 1000 If the observed voltage is a pulse or a signal over 100 kHz see Fig 1 2 and the maximum input voltage limitations listed under Elec trical Characteristics in Section 1 Remember that com ponent heating caused by changes in ambient temperature or high voltage will cause a slight change in calibration accuracy If the displayed waveform contains fast tran sients the inductive effect of the ground lead may make it desirable to remove the probe from its plastic body and build the probe into the circuit under test Operating Instructions P6015 2 3 Ta Fig 2 2 Waveforms showing a Typical example of risetime within the probe
13. ible in the nose is an indication of proper pressure inside the probe The saturation pressure increases with an increase in temperature and at higher temperatures it is normal for all of the fluorocarbon 114 to be in a gaseous stage The liquid at room temperature should be approximately even with or 062 inch above the bottom of the small end of the resistor end cap see Fig 3 1 Section 3 P6015 3 1 Recharging the probe with fluorocarbon 114 requires no Base Assembly special tools or equipment besides the dispenser supplied ZE gr vede with each probe If the liquid level in the probe is low it Z can be recharged as follows d Y Y 1 Uncouple the two halves of the probe body cover and Y k remove the probe body see Fig 3 1 Sealing NA Ring Y N Y 2 Unscrew and remove the securing ring Y Y 3 Remove the base assembly from the probe body m 100 Megohm Y y Resistor Y 4 Hold the probe tip down and release fluorocarbon Y ME 114 into the probe body until the liquid level is approxi Y m mately 125 inch above the small end of the gold plated rw MS resistor end cap see Fig 3 1 End Cap Zo A 2 Cushion 5 Replace the base assembly Be sure the 100 megaohm 9 Ring resistor is properly mated Screw on the securing ring hand Liquid Re tight 50 60 inch Ibs Level S PROBE BODY 6 Shake the probe body to agitate the liquid this accelerates vaporization and quickly builds
14. k that affects the leading corner of the square wave R1 C1 Comprise an RC network that affects the area immediately following the leading corner of the square wave R2 C2 Comprise an RC network that affects the middle section of the square wave Section 2 P6015 2 1 R3 A high frequency peaking adjustment that affects the leading 10 to 100 nanoseconds of a fast rise pulse The action of R3 will not be apparent with signals having risetimes greater than 0 1 microsecond R5 An attenuation adjustment that varies output ampli tude by about 9 Compensation can be checked by displaying the oscillo scope calibrator 40 volt output through the P6015 Probe Adjust the oscilloscope controls 0 02 volts div sweep rate 0 5 ms div to display a waveform similar to Fig 2 1 If the waveform has aberrations compensation is necessary If the aberrations cannot be corrected by making minor adjust ments proceed as follows 1 Preset the following controls as indicated C3 Set fully clockwise and back off 90 degrees C1 Set fully clockwise and back off 90 degrees R1 Set fully clockwise and back off 90 degrees C2 Set fully clockwise and back off 2 turns R2 Set fully clockwise and back off 90 degrees 2 Adjust R5 for exactly 2 major divisions of vertical deflection on the crt Use the level portions of the square wave if the waveform is over or under peaked 3 Set the sweep rates for
15. reconnect components as indicated by the type of trouble Probe Cannot Be Compensated Check capacitors Ci C2 and C3 Check Resistors R1 and R2 If any of the capacitors are shorted the attenuation ratio of the probe will be greatly changed If connections to the capacitors are faulty or if the resistors are faulty the defective com ponent will not adjust properly when compensating the probe Open the compensating box by unscrewing the two screws on the top and removing the cover Reconnect or replace components as necessary l Maintenance P6015 _ 3 3 PARTS LIST AND SCHEMATIC HOW TO ORDER PARTS Replacement parts are available from or through your local Tektronix Field Office Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements developed in our engineering department It is therefore important when ordering parts for your order to contain the following information Part number including any suffix instrument type serial number and modification number if applicable If a part you have ordered has been replaced with a new or improved part your local Tektronix Field Office will contact you concerning any change in part number ABBREVIATIONS BHS Binding Head Steel p Pico or 10714 f Farad PHS Pan Head Steel Kork Kilohms or kilo 109 Var Variable i M or meg Megohms or mega 109 w Watt
16. up pressure Fig 3 1 Cutaway drawing of P6015 Probe inside the probe body 3 2 Maintenance P6015 7 Check to see that the liquid level is approximately even with or 062 inch above the bottom of the gold plated resistor end cap If too much liquid boiled away add more If the liquid level is too high bleed off excess by loosening the securing ring and letting the liquid boil When the proper level has been reached retighten the securing ring 8 Replace the cushion ring on the probe body if removed prior to reassembling the probe body and probe body cover Troubleshooting Following are some possible trouble symptoms and causes No Output or Differentiated Output Connect the compensating box to the INPUT connector of the oscillo scope or plug in unit and touch the probe tip to the calibrator output connector on the oscilloscope Set the oscilloscope calibrator for a 100 volt output If the crt display shows no signal or a differentiated signal check R6 the center conductor of the interconnecting cable and R100 in the probe body Replace the defective component If R100 is defective gain access to it as outlined in steps 1 through 3 under Recharging the Probe Erroneous Attenuation Ratio If there is an obvious error in attenuation ratio check resistors R3 R4 and R5 To gain access to the resistors remove the compensating box cover by unscrewing the two screws on the top of the compensating box Replace or
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