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HIGH-VOLTAGE PRECAUTIONS

CAUTION:

This instrument provides output voltages as high as 750 Volts under

normal operating conditions, and generates up to 900V internally, so extreme caution
must be employed when using this instrument. The instrument should only be used by
individuals who are thoroughly skilled in high voltage laboratory techniques. The
following precautions should always be observed:

1. Keep exposed high-voltage wiring to an absolute minimum.

2. Wherever possible, use shielded connectors and cabling.

3. Connect and disconnect loads and cables only when the instrument is turned off.

4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must

have an appropriate voltage rating.

Do not attempt any repairs on the instrument, beyond the fuse replacement procedures
described in this manual. Contact Avtech technical support (see page 2 for contact
information) if the instrument requires servicing.

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Содержание AVRF-7A-B

Страница 1: ...E L E C T R O S Y S T E M S L T D N A N O S E C O N D W A V E F O R M E L E C T R O N I C S S I N C E 1 9 7 5 P O BOX 265 OGDENSBURG NY U S A 13669 0265 TEL 888 670 8729 USA Canada or 1 613 686 6675...

Страница 2: ...ace said defective item This warranty does not apply to units which have been dissembled modified or subjected to conditions exceeding the applicable specifications or ratings This warranty is the ext...

Страница 3: ...ORY NOTES 10 INSTALLATION 11 VISUAL CHECK 11 POWER RATINGS 11 CONNECTION TO THE POWER SUPPLY 11 PROTECTION FROM ELECTRIC SHOCK 12 ENVIRONMENTAL CONDITIONS 13 LABVIEW DRIVERS 13 FUSES 14 AC FUSE REPLAC...

Страница 4: ...8N LOW VOLTAGE POWER SUPPLY 2 3 36 PCB 158N LOW VOLTAGE POWER SUPPLY 3 3 37 PCB 94G ALARM BOARD 38 PCB 157C HIGH VOLTAGE POWER SUPPLY 39 PCB 168B HIGH VOLTAGE DC POWER SUPPLY 40 PCB 183A S AND 183A P...

Страница 5: ...pushbutton can also be used to trigger the instrument The AVRF 7A B features front panel keyboard and adjust knob control of the output pulse parameters along with a four line by 40 character backlit...

Страница 6: ...ecautions should always be observed 1 Keep exposed high voltage wiring to an absolute minimum 2 Wherever possible use shielded connectors and cabling 3 Connect and disconnect loads and cables only whe...

Страница 7: ...ynchronous active high or low switchable Suppresses triggering when active Connectors Out BNC3 Trig Sync Gate BNC GPIB and RS 232 control1 Standard on B units Telnet Ethernet control Optional TNT opti...

Страница 8: ...g Also check that your load is adequately shielded It may be necessary to enclose the load in a metal enclosure If any of the connectors on the instrument are unused they should be covered with shield...

Страница 9: ...ies to Directive 2002 96 EC categories 1 7 and 10 as stated in the Article 2 Scope section of Directive 2002 95 EC DIRECTIVE 2002 96 EC WEEE European customers who have purchased this equipment direct...

Страница 10: ...ra AAD130SD 60 A switching power supply According to the manufacturer the Tamura AAD130SD 60 A has the following certifications UL60950 1 IEC60950 1 CSA C22 2 No 60950 1 EN60950 1 and is compliant wit...

Страница 11: ...mal single phase supply CONNECTION TO THE POWER SUPPLY An IEC 320 three pronged recessed male socket is provided on the back panel for AC power connection to the instrument One end of the detachable p...

Страница 12: ...ors are prevented access and or are insulated from every connection point In some cases connections must be exposed to potential human contact Operators must be trained to protect themselves from the...

Страница 13: ...C decreasing linearly to 50 relative humidity at 40 C 5 Mains supply voltage fluctuations up to 10 of the nominal voltage 6 no pollution or only dry non conductive pollution LABVIEW DRIVERS A LabVIEW...

Страница 14: ...the fuses on the rear panel are shown in the figure below AC FUSE REPLACEMENT To physically access the AC fuses the power cord must be detached from the rear panel of the instrument The fuse drawer ma...

Страница 15: ...g Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 115 V 0 8A 250V Time Delay 5 20 mm 0218 800HXP F2418 ND 230 V 0 5A 250V Time Delay 5 20 mm 0218 500HXP F241...

Страница 16: ...he overload condition has been removed the instrument will resume normal operation This overload indicator may flash yellow briefly at start up This is not a cause for concern 3 OUT CONNECTOR This BNC...

Страница 17: ...of ten If one of the adjustable numeric parameters is displayed and this parameter can be both positive or negative this changes the sign of the parameter EXTRA FINE This changes the step size of the...

Страница 18: ...t triggers normally when this input is unconnected When set to active high mode this input is pulled down to ground by a 1 k resistor When set to active low mode this input is pulled up to 5V by a 1 k...

Страница 19: ...ed See the Programming Manual for B Instruments for more details on GPIB control 7 RS 232 Connector A standard serial cable with a 25 pin male connector can be attached to this connector to allow the...

Страница 20: ...sitive value the SYNC pulse precedes the OUT pulse When the delay is set to a negative value the SYNC pulse follows the OUT pulse These pulses are illustrated below assuming internal triggering and a...

Страница 21: ...th approximately and the delay circuit is bypassed Figure D The delay pulse width and frequency when in the internal mode of the OUT pulse can be varied with front panel controls or via the GPIB or RS...

Страница 22: ...UT the output pulse width equals the pulse width of the trigger signal on the TRIG connector The instrument must be in the external trigger mode These modes can be selected using the front panel pulse...

Страница 23: ...total effective resistance to 50 Ohms A 50 Ohm load impedance is required Open circuits short circuits and other non 50 loads may damage the instrument PREVENTING OUTPUT STAGE FAILURE The output stag...

Страница 24: ...and other non 50 loads may damage the instrument ALARMS A protection circuit monitors the temperature of certain key components If the internal power dissipation becomes too high due to improper use a...

Страница 25: ...PW T V2 R PW f where V is the output voltage R is the load resistance PW is the pulse width and T is the pulse period 1 frequency and f is the frequency If a 50 resistor is used the worst case power d...

Страница 26: ...not press MOVE until it is Press CHANGE to return to the main menu 5 To set the delay to 1 us Press the MOVE button until the arrow pointer is pointing at the delay menu item Press the CHANGE button T...

Страница 27: ...ntil the amplitude is set at 200V Observe the oscilloscope You should see 1 us wide 200V pulses Rotate the ADJUST knob The amplitude as seen on the oscilloscope should vary Reduce the amplitude to 50V...

Страница 28: ...urns on the output For triggering a single event this sequence would be more appropriate rst resets the instrument trigger source hold turns off all triggering pulse width 1 us sets the pulse width to...

Страница 29: ...od numeric value WIDTh numeric value EXTernal DCYCle numeric value HOLD WIDTh DCYCle DELay numeric value GATE TYPE ASYNC SYNC LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value EXTe...

Страница 30: ...query only TRIGger SOURce INTernal EXTernal MANual HOLD IMMediate CLS no query form ESE numeric value ESR query only IDN query only OPC SAV 0 1 2 3 no query form RCL 0 1 2 3 no query form RST no quer...

Страница 31: ...factory for repair Service is to be performed solely by qualified service personnel Caution High voltages are present inside the instrument during normal operation Do not operate the instrument with t...

Страница 32: ...es may require replacement All fuses can be accessed from the rear panel See the FUSES section for details CLEANING If desired the interior of the instrument may be cleaned using compressed air to dis...

Страница 33: ...ro u n d p o s t G 1 G 2 B 1 R E D G 4 G 3 L N G X 2 C O R C O M 6 E G G 1 2 P O W E R E N T R Y M O D U L E 1 1 b 1 a 2 2 b 2 a X 1 P O W E R S W I T C H S W 3 2 5 N D C W IN D U S T R I E S G R S 4...

Страница 34: ...O I N G N D O L O G N D 2 0 O R 2 4 A W G C A P B A N K G N D E X T P S I N I N O U T G N D G N D G R E E N G N D A M B E R S 1 A S 1 B D C S 2 A D C G N D C H S G N D S 2 B 2 0 A W G P C B 1 5 8 N 1...

Страница 35: ...8 J 4 6 4 0 4 4 5 8 1 2 3 4 5 6 J 3 6 4 0 4 4 5 6 1 5 V 1 5 V B U P O U T 1 1 5 V G N D 1 5 V p c b 1 5 8 N _ o v p p c b 1 5 8 N _ o v p s c h B U P O U T 1 1 5 V G N D 1 5 V 1 5 V B U E X T P O U T...

Страница 36: ...V C 1 1 2 2 u F L 3 4 3 4 1 3 1 0 1 M C 9 4 7 u F 3 5 V C 6 2 2 u F L 2 4 3 4 1 3 1 0 1 M C 3 4 7 u F 3 5 V C 1 4 7 u F 3 5 V C 8 2 2 u F L 1 4 3 4 1 3 1 0 1 M C 4 4 7 u F 3 5 V C 1 2 2 2 u F L 4 4 3...

Страница 37: ...M O U N T X 1 0 6 3 2 M O U N T A N Y 1 5 V N O N C M O S 5 5 5 1 4 1 2 Q 1 C M P Q 2 2 2 2 D I S A B L E O L O W H E N C H A R G I N G S H O R T S O U T B A S E W H E N C H A R G I N G B U 1 5 V G N...

Страница 38: ...F C 1 1 0 1 u F 1 5 V C 1 2 2 2 u F C 1 3 0 1 u F V C C V i n V in D 3 1 N 6 2 6 3 D 4 1 N 6 2 6 3 V C C D 5 1 N 4 1 4 8 L 1 4 3 4 2 3 4 7 1 1 2 B Z 1 S O N A L E R T M S R 3 2 0 1 2 R N 1 A 4 7 0 K 3...

Страница 39: ...e e n th e 1 N 4 9 3 7 o r t h e S S R 1 N 4 9 3 7 1 0 0 O H M d e p e n d in g o n th e vo lta g e le ve ls R 1 9 3 3 K V C C C 3 4 8 F 4 9 0 1 M fg 1 0 2 R 2 9 W 1 0 3 K V 4 E 0 0 1 u F 1 k V 1 8 0...

Страница 40: ...GN D 1 2 4V I N 2 M ON 3 EN 4 GN D 5 AD JUST 6 REF OUT 7 GN D 8 GN D 9 OU T 1 0 OU T 1 1 CASE 12 CASE 13 UV 1 1 8A 24 P20 D1 1N4750 C1 2 2uF CER CC W CW W TOP VIEW R7 5K 3266W R8 100 OY D3 1N4937 1 2...

Страница 41: ...7200 4 40 thread standoff 3 8 X8 HV WA RN ING X9 HV WA RN ING X11 HV WA RN ING R1 R2 R3 R4 R5 R6 1 2 J1 HV 1 2 J2 HV 1 2 J3 GND 1 2 J4 GND P1 P2 P3 N1 N2 N3 R7 R8 R9 R10 1 2 J5 HV 1 2 J6 HV 1 2 J7 GN...

Страница 42: ...L S C H E M A T I C 1 2 3 4 5 6 7 8 9 1 0 J 5 A H E 1 0 G N D M fg 4 9 9 9 1 0 1 1 0 p in s tra i g h t h e a d e r I2 C _ IN T S C L S D A G N D V C C S IN G L E P U L S E B A C K L IG H T E N C O D...

Страница 43: ...1 6 U 7 P C F 8 5 7 4 A P N M U S T H A V E A IN P N V C C 1 A 1 B X 2 8 2 1 0 1 7 1 1 b u t to n k e y p a d 1 2 U 4 A M M 7 4 H C 1 4 N 1 1 1 0 U 1 E M M 7 4 H C 1 4 N S IN G L E P U L S E V C C V C...

Страница 44: ...V E A IN P N V C C S D A S C L V C C V C C G N D V C C V C C C 5 0 1 u F D B 7 1 D B 6 2 D B 5 3 D B 4 4 D B 3 5 D B 2 6 D B 1 7 D B 0 8 E 1 9 R W 1 0 R S 1 1 V E E 1 2 V S S 1 3 V C C 1 4 E 2 1 5 N C...

Страница 45: ...6 1 5 3 E 2 5 1 5 F E E T 1 5 F E E T B E L D E N 8 2 5 9 9 0 T U R N S 3 5 F E E T TO T A L IN C L U D I N G 2 X 1 5 F E E T T O R E L A Y R E V E R S E C E N T E R C O N D U C T O R A N D S H I E L...

Страница 46: ...5 0 K O Y R 4 R 6 B O T U N U S E D X F R M 1 T 1 0 2 6 6 1 5 3 E 2 5 1 5 F E E T 1 5 F E E T B E L D E N 8 2 5 9 9 0 T U R N S 3 5 F E E T TO T A L IN C L U D I N G 2 X 1 5 F E E T T O R E L A Y R E...

Страница 47: ...PERFORMANCE CHECK SHEET 47...

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