Avtech AVR-3HF-B Скачать руководство пользователя | Manualshive

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TRIGGER MODES

This instrument has four trigger modes:



Internal Trigger: the instrument controls the trigger frequency, and generates the
clock internally.



External Trigger: the instrument is triggered by an external TTL-level clock on the
back-panel TRIG connector.



Manual Trigger: the instrument is triggered by the front-panel “SINGLE PULSE”
pushbutton.



Hold Trigger: the instrument is set to not trigger at all.

These modes can be selected using the front panel trigger menu, or by using the
appropriate programming commands. (See the “Programming Manual for -B
Instruments” for more details.)

PULSE WIDTH MODES

This instrument has two pulse width modes:



Normal: the instrument controls the output pulse width.



PW

IN

=PW

OUT

: 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 width menu, or by using the
appropriate programming commands. (See the “Programming Manual for -B
Instruments” for more details.)

GATING MODES

Triggering can be suppressed by a TTL-level signal on the rear-panel GATE connector.
The instrument can be set to stop triggering when this input high or low, using the front-
panel gate menu or the appropriate programming commands. This input can also be
set to act synchronously or asynchronously. When set to asynchronous mode, the
GATE will disable the output immediately. Output pulses may be truncated. When set to
synchronous mode, the output will complete the full pulse width if the output is high,
and then stop triggering. No pulses are truncated in this mode.

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Содержание AVR-3HF-B

Страница 1: ...987 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 888 670 8729 USA Canada or 1 613 686 6675 Intl Fax 800 561 1970 USA Canada or 1 613 686 6679 Intl BOX 5120 LCD MERIVALE OTTAWA CANADA K2C3H5 ...

Страница 2: ...lace 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 extent of the obligation assumed by Avtech with respect to this product and no other warranty or guarantee is either expressed or implied TECHNICAL SUPPORT Phone 888 670 8729 USA Canada or 1 613 686 667...

Страница 3: ...0 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 14 FRONT PANEL CONTROLS 15 REAR PANEL CONTROLS 17 GENERAL INFORMATION 19 BASIC PULSE CONTROL 19 TRIGGER MODES 21 PULSE WIDTH MODES 21 GATING MODES 21 PREVENTING OUTPUT STAGE FAILURE 22 OPERATIONAL C...

Страница 4: ...4 PCB 197H HIGH VOLTAGE DC POWER SUPPLY DISCHARGE 35 PCB 183A S AND 183A P CAPACITOR BANKS 36 PCB 156D POLARITY CONTROL BOARD PN UNITS ONLY 37 PCB 104F KEYPAD DISPLAY BOARD 1 3 38 PCB 104F KEYPAD DISPLAY BOARD 2 3 39 PCB 104F KEYPAD DISPLAY BOARD 3 3 40 MAIN WIRING STANDARD P UNITS 41 MAIN WIRING STANDARD PN UNITS 42 MAIN WIRING N UNITS WITH XP2 OPTION 43 PERFORMANCE CHECK SHEET 44 Manual Referenc...

Страница 5: ...s front 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 delay The instrument includes memory to store up to four complete instrument setups The operator may use the front panel or the computer interface to store a complete snapshot of all key instrumen...

Страница 6: ...dard feature on all B units LabView drivers Available for download at http www avtechpulse com labview Ethernet port for remote control using VXI 11 3 ssh telnet web Included Recommended as a modern alternative to GPIB RS 232 See http www avtechpulse com options vxi for details Settings resolution The resolution of the timing parameters pulse width delay period varies but is always better than 0 1...

Страница 7: ...ng 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 shielded metal dust caps to reduce the interference potential This instrument does not normally require regular maintenance to minimize interference potential However if loose hardware or connectors are no...

Страница 8: ...ation 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 greater than the listed maximum value Material Substance Threshold level Lead Pb 1000 ppm 0 1 by mass Mercury Hg 1000 ppm 0 1 by mass Hexavalent Chromium Cr6 1000 ppm 0 1 by mass Polybrominated Biphenyl...

Страница 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 activities FIRMWARE LICENSING Instruments with firmware versions 5 00 or higher use open source software internally Some of this software requires that the source code be made available to the user as a cond...

Страница 10: ...r operation from a normal 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 power cord that is supplied with the instrument plugs into this socket The other end of the detachable power cord plugs into the local mains supply Use only the cable supplied wit...

Страница 11: ...perators 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 risk of electric shock This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar with safety precautions required to avoid possibly injury In particu...

Страница 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 driver for this instrument is available for download on the Avtech web site at http www avtechpulse com labview A copy is also available in National Instruments Instrument Driver Library at http www ...

Страница 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 may then be extracted using a small flat head screwdriver as shown below 13 Fuses 1 and 2 AC fuses Fuse 4 DC fuse Fuse 3 DC fuse Fuse Drawer Pry out the fuse drawer using a screwdriver ...

Страница 14: ...XP F2416 ND 3 DC N A 1 0A 250V Time Delay 5 20 mm 0218001 HXP F2419 ND 4 DC N A 3 15A 250V Time Delay 5 20 mm 02183 15HXP F2430 ND Units with the XP2 option require different fuses Fuses Nominal Mains Voltage Rating Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 115 V 3 15A 250V Time Delay 5 20 mm 02183 15HXP F2430 ND 230 V 1 6A 250V Time Delay 5 20 mm 0...

Страница 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 light yellow for another 5 seconds If the 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...

Страница 16: ...d 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 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 ADJUST knob In the extra fine mode the step size is t...

Страница 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 When set to active high mode this input is pulled down to ground by a 1 kΩ resistor When set to active low mode this input is pulled up to 5V by a 1 kΩ resistor 5 TRIG This TTL level 0 and 5V logic inpu...

Страница 18: ...rolled 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 may be necessary to send a few return characters before attempting a login in order to provide enough data to allow this auto sensing to work A standard Linux agetty process is used to implement ser...

Страница 19: ...ositive 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 positive delay Figure A If the delay is negative the order of the SYNC and OUT pulses is reversed Figure B The next figure illustrates the relationship between the signal when an external TTL level t...

Страница 20: ...dth 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 232 computer interfaces 20 SYNC OUT 100 ns FIXED MAIN OUTPUT PULSE WIDTH DELAY 0 AMPLITUDE VARIABLE 3V FIXED 50 ns TTL LEVELS 0V and 3V 5V TRIG external input PROPAGATION DELAY FIXED MAIN OUTPUT PWO...

Страница 21: ...OUT 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 width menu or by using the appropriate programming commands See the Programming Manual for B Instruments for more details GATING MODES Triggering can be suppressed by a TTL level signal on the rear ...

Страница 22: ...a PRF exceeding 100 kHz or at duty cycles resulting in an average output power in excess of 50 Watts Heating and subsequent possible failure of the output stage is reduced if the following action is taken where possible PRF is kept to a minimum i e operate in a low PRF range when possible rather than in a high PRF range Keep the output pulse width to a minimum Never apply an externally generated v...

Страница 23: ...e across this load The load resistor must have a voltage rating of at least 250V 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 resistance PW is the pulse width and T is the pulse period 1 frequency and f is the frequency 2 Set the oscilloscope to trigger externally with the vertical setting at 50 Volts div and the horizontal sett...

Страница 24: ...l the delay is set at 1 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 1 us Press the MOVE button until the arrow pointer is pointing at the pulse width menu item Press the CHANGE button The pulse width submenu will appear Rotate the ADJUST knob until the pulse width is set at 1 us...

Страница 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 polarity by pressing the button The output amplitude should become negative and you should see 50V pulses on the oscilloscope Avoid switching polarity when the amplitude is higher than 100V Reduce the am...

Страница 26: ...turns 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 1 us pulse delay 2 us sets the delay to 2 us output on turns on the output volt 250 sets the amplitude to 250 V trigger source immediate generates a single non repetitive trigger event trigger sourc...

Страница 27: ...lue 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 STATUS OPERation EVENt query only always returns 0 CONDition query only always returns 0 ENABle numeric value implemented but not useful QUEStionable EVENt query only always returns 0 CONDition quer...

Страница 28: ...ANual 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 query only WAI no query form 28 ...

Страница 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 the cover removed RACK MOUNTING A rack mounting kit is available The R5 rack mount kit may be installed after first removing the one Phillips screw on the side panel adjacent to the front handle ELECT...

Страница 30: ...is 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 a grossly excessive signal to damage the trigger circuitry on the main timing control board the 4 10 inch board on the right side of the instrument The IC that is most likely to fail under these con...

Страница 31: ...104D KEYPADBOARD B UNITS ONLY Chassisgroundpost G1 G2 B1 G4 G3 L N G X2 CORCOM6EGG1 2 POWERENTRY M ODULE 1 1b 1a 2 2b 2a X1 POWERSWITCH SW325 ND CW INDUSTRIES GRS 4022 0013 A1 BROWN A2 BLUE A3 BLACK A4 WHITE GR N AMB D1 P395 NDLED GR N AMB BL K RE D W H T X5 VCCLED M OUNT DC FA N FAN1 P9768 ND FANNO T C3 P UR C4 GRN M olex19073 0013ringterm inal 8 M olex19002 0001 0 250 x0 032 P rotectiveconductor...

Страница 32: ...ARD B UNITS ONLY Chassisgroundpost G1 G2 G3 L N G X2 CORCOM6EGG1 2 POWERENTRY M ODULE 1 1b 1a 2 2b 2a X1 POWERSWITCH SW325 ND CW INDUSTRIES GRS 4022 0013 A1 BROWN A2 BLUE A3 BLACK A4 WHITE GR N AMB D1 P395 NDLED GR N AMB BL K RE D W H T X5 VCCLED M OUNT DC FA N FAN1 259 1693 ND H IG H ER C3 P UR C4 GRN M olex19073 0013ringterm inal 8 M olex19002 0001 0 250 x0 032 P rotectiveconductorterminal M ole...

Страница 33: ...1 PCB158R4 BLU G RN M OUNTWIT H 1 2 ST ANDO FFS P1 N1 15000uF 35Vx 2 R1 R2 O NBOT T OM 1 8K O Y CHSGND R6 C APBAN KC HAR GE 22A Y ONT OP ST R AIGH T ENT H EL EA DST OMINIMIZ ET H EH EIGH T CH AN GESREQUIR EDO NPC B158R 4 K5 C APBAN KD ISCH ARG E G2RL 14 D C24 C2 O LOR ES PO NSET IME IN ST AL LL AT ER T YP47 100 OR220uF POSOLO1 OLOGND 1 T OAC DCCONVERT ER OLOGND 2 2 FORHIG H PO WERUNIT S 1 ALWAYSUS...

Страница 34: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY ...

Страница 35: ...PCB 197H HIGH VOLTAGE DC POWER SUPPLY DISCHARGE ...

Страница 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 GND 1 2 J8 GND P4 P5 P6 N4 N5 N6 X10 7200K ND Mfg 7200 4 40 thread standoff 3 8 X12 7200K ND Mfg 7200 4 40 thread standoff 3 8 X13 7200K ND Mfg 7200 4 40 thread standoff 3 8 X14 7200K ND Mfg 7200 4 40 t...

Страница 37: ...1 2 3K R2 0 10K R1 7 1K R1 1 1K SMA1 NTRIG SMA2 PTR IG 1 2 3 4 5 6 K1 AQV2 21 R3 1 300 3 2 1 8 4 U1 A LM358 C1 0 1uF 15 V 5 6 7 U1 B 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 CW R8 5K NMIN 15V UV ON IS HIGH IF 1 UV HIGH IS LOW AND 2 POL IS LOW UV ON IS HIGH IF 1 UV HIGH IS LOW AND 2 POL IS HIGH IF THE POLARITY IS SWITCHED AND THE OPPOS...

Страница 38: ...d 2015 ddb Documents Panelbrd prj PANELTOP LEVELSCHEMATIC 1 2 3 4 5 6 7 8 9 10 J5 Amp 54999 10 1 10 pin straight head er I2C_INT SC L SDA GND VC C SINGLE PULSE BACKLIGHT ENCODER ENCODER S CH I2C_INT SC L SDA GND VC C SINGLE PULSE BACKLIGHT SDA SC L GND VC C VC C LED BACKLIGHT LC D BUTT LC D BUTT SCH SDA SC L GND VC C VC C LED BACKLIGHT ...

Страница 39: ...MUST HAVE A IN P N VC C 1A 1B X2 82 101 71 1 b utton keypad 1 2 U4 A MM74HC 14N 11 10 U1 E MM74HC 14N SINGLE PULSE VC C VC C C1 0 2 2uF C1 1 2 2uF C1 2 2 2uF C9 2 2uF C7 2 2uF C6 2 2uF C1 2 2uF 3 4 U4 B MM74HC 14N 5 6 U4 C MM74HC 14N 9 8 U4 D MM74HC 14N 11 10 U4 E MM74HC 14N 13 12 U4 F MM74HC 14N R1 15K R4 15K 2 3 4 5 6 1 7 8 RN3 460 8X 1 473LF ND R2 100 K VC C 2 3 4 5 6 1 7 8 RN2 460 8X 2 101LF N...

Страница 40: ...SDA SC L VC C VC C GND VC C VC C C5 0 1uF 1 2 U1 A MM74HC 14N 13 12 U1 F MM74HC 14N 5 6 U1 C MM74HC 14N PAD3 LED PAD4 LED X3 4 40 MOUNT X1 4 40 MOUNT X9 4 40 MOUNT X8 4 40 MOUNT 3 4 U1 B MM74HC 14N LC D POW E R VC C 2 3 4 5 6 1 7 8 16 9 10 11 12 13 14 15 RN4 481 6P 2 10 2LFC T ND VC C VC C C8 2 2uF R3 22 DB 7 1 DB 6 2 DB 5 3 DB 4 4 DB 3 5 DB 2 6 DB 1 7 DB 0 8 E1 9 R W 10 RS 11 VEE 12 VS S 13 VC C ...

Страница 41: ... NO C NC SW NO C NC AMP LAN O LIM EX 295E BD2 OP1B M AINBOARD PCB 295E GND GND GND OLO SSR EN VC R1 R2 R3 R4 R5 R6 R7 5V N C 15V GND R26 R27 UNUSED R24 R25 R8 HV HV 24 V GND OLO GND LV GND LV 197H 60 OR125W POSVERSION HAS D2 4 5 7NO RMO RIENT R14 18 21 22 ZERO R13 17 19 20 UNUSED USEJ8IFJ3 ISBLO CKED UV1 PCB197H POS 1 4C24 P60 P5 P6 N6 P4 N4 N5 G G G G R7 R8 R9 R1 0 BD1 PCB183A P CONN1 OUT CONN3 G...

Страница 42: ... P TR IG N 15 6 USE 8414K ND 6 32 1 2 INCH STANDOFFS T O PH HARNESS X1 POLR PCB156D 2 4V NO OLO C HA NG ESN EEDO NPC B156C 1 R 32 R35 100KOY CHS GND USE 1 2 ST ANDOFFS P1 P3 N1 N3 33uF 400V P7519 ND R7 R10 100K CONN1 SYNC CONN6 GATE CONN5 TRIG CONN4 AMP EA UNITS ONLY OV TEM P AU X A K BD1 PCB104F KEYPAD CHANGES REQUIRED ON PCB 295D 100 kHz PRF LIM 1 INST ALL C9 680pF CER CONN2 OS OS ONLY HV HV GND...

Страница 43: ...G 1 16 AMPLRNG 0 17 XRLY 5 18 XRLY 4 EO 19 XRLY 3 V I 20 XRLY 2 DUALPW 21 XRLY 1 22 GATE 23 EXTTRIG 24 SYNC OUT 25 MAIN OUT 26 5VON OFF 27 15V ON OFF 28 OUT SYNC VSPARE VPRF GA TE 2 4 V GN D TR IG AU X GN D VF NO C NC SW NO C NC AMP LAN OLIM EX 295E BD2 OP1B MAINBOARD PCB 295E CONN2 OUT CONN3 GATE CONN4 EXTTRIG OV TEMP AU X A K BD3 PCB104 KEYPAD CHANGES REQUIREDON PCB295E 100 kHz PRF LIM 1 INST AL...

Страница 44: ...PERFORMANCE CHECK SHEET 44 ...

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