AVTECH ELECTROSYSTEMS AVR-2B-B Instructions Manual Download Page 38 | Manualshive

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PCB 104G - KEYPAD / DISPLAY BOARD

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Summary of Contents for AVR-2B-B

Page 1: ...TROL SERIAL NUMBER 14216 A V T E C H 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 info avtechpulse com http www avtechpulse com Tel 888...

Page 2: ...all at its option repair or replace said defective item This warranty does not apply to units which have been dissembled modified or subjected to conditions exceeding the applicable specifications or...

Page 3: ...POWER RATINGS 10 CONNECTION TO THE POWER SUPPLY 10 PROTECTION FROM ELECTRIC SHOCK 11 ENVIRONMENTAL CONDITIONS 12 LABVIEW DRIVERS 12 FUSES 13 AC FUSE REPLACEMENT 13 DC FUSE REPLACEMENT 14 FUSE RATINGS...

Page 4: ...OWER 32 PCB 158R7 LOW VOLTAGE POWER SUPPLY 33 PCB 197K HIGH VOLTAGE POWER SUPPLY 34 PCB 179B CAPACITOR BANKS 35 PCB 183A S AND 183A P CAPACITOR BANKS 36 PCB 156D POLARITY CONTROL BOARD PN UNITS ONLY 3...

Page 5: ...panel keyboard and adjust knob control of the output pulse parameters along with a four line by 40 character backlit LCD display of the output amplitude pulse width pulse repetition frequency and del...

Page 6: ...mum amplitude Settings accuracy Typically 3 plus 1V or 2 ns after 10 minute warmup For high accuracy applications requiring traceable calibration verify the output parameters with a calibrated oscillo...

Page 7: ...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...

Page 8: ...tion of conformity is issued under the sole responsibility of Avtech Electrosystems Ltd Specifically products manufactured do not contain the substances listed in the table below in concentrations gre...

Page 9: ...9 have been made Requirements for WEEE compliance may include registration of products with local governments reporting of recycling activities to local governments and financing of recycling activiti...

Page 10: ...rmal 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...

Page 11: ...erators 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...

Page 12: ...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...

Page 13: ...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...

Page 14: ...ng Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 115 V 2 0A 250V Time Delay 5 20 mm 0218002 HXP F2420 ND 230 V 1 0A 250V Time Delay 5 20 mm 0218001 HXP F24...

Page 15: ...abled for about 5 seconds after which the instrument will attempt to re enable the output i e light green for about 1 second If the overload condition persists the output will be disabled again i e li...

Page 16: ...this increases the setting by a factor of ten 10 If one of the adjustable numeric parameters is displayed this decreases the setting by a factor of ten If one of the adjustable numeric parameters is...

Page 17: ...ng of the instrument This input can be either active high or active low depending on the front panel settings or programming commands The instrument triggers normally when this input is unconnected Wh...

Page 18: ...olled A user name admin and a password default as shipped from the factory are required when logging into a serial terminal session The internal controller attempts to auto sense the parity setting It...

Page 19: ...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...

Page 20: ...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...

Page 21: ...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...

Page 22: ...PRF exceeding 100 kHz or at duty cycles resulting in an average output power in excess of 100 Watts Heating and subsequent possible failure of the output stage is reduced if the following action is t...

Page 23: ...e across this load The load resistor must have a voltage rating of at least 100V The power dissipated in the resistor is given by P V2 R PW T V2 R PW f where V is the output voltage R is the load resi...

Page 24: ...he delay is set at 10 us The arrow pointer should be pointing at the Normal choice If it is not press MOVE until it is Press CHANGE to return to the main menu 6 To set the pulse width to 100 us Press...

Page 25: ...V pulses Rotate the ADJUST knob The amplitude as seen on the oscilloscope should vary Reduce the amplitude to 50V or 50V for N instruments using the adjust knob For PN units only Change the output pol...

Page 26: ...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...

Page 27: ...ue EXTernal DCYCle numeric value HOLD WIDTh DCYCle DELay numeric value GATE TYPE ASYNC SYNC LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value EXTernal PROTection TRIPped query only...

Page 28: ...Nual 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 query form SRE numeric value STB query only TST que...

Page 29: ...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...

Page 30: ...s recommended TRIGGER DAMAGE The rear panel TRIG input used in the external trigger mode is protected by a diode clamping circuit However the protection circuit is not foolproof and it is possible for...

Page 31: ...WIRING DIAGRAMS WIRING OF AC POWER...

Page 32: ...WIRING OF DC POWER...

Page 33: ...PCB 158R7 LOW VOLTAGE POWER SUPPLY...

Page 34: ...PCB 197K HIGH VOLTAGE POWER SUPPLY...

Page 35: ...n d o f f 3 8 X 5 7 2 0 0 K N D M f g 7 2 0 0 4 4 0 t h r e a d s t a n d o f f 3 8 X 6 7 2 0 0 K N D M f g 7 2 0 0 4 4 0 t h r e a d s t a n d o f f 3 8 X 7 7 2 0 0 K N D M f g 7 2 0 0 4 4 0 t h r e...

Page 36: ...ND Mfg 7200 4 40 thread standoff 3 8 X8 HV WARNING X9 HV WARNING X11 HV WARNING 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...

Page 37: ...SMA1 NTRIG SMA2 PTRIG 1 2 3 4 5 6 K1 AQV221 R31 300 3 2 1 8 4 U1A LM358 C1 0 1uF 15V 5 6 7 U1B LM358 CC W W CW R4 5K PMAX R3 4 7K CC W W CW R6 5K NMAX R5 4 7K C2 0 1uF 15V R9 10K R2 10K R7 27K CC W W...

Page 38: ...PCB 104G KEYPAD DISPLAY BOARD...

Page 39: ...MAIN WIRING...

Page 40: ...PERFORMANCE CHECK SHEET 40...

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