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Avtech AVMR-2D-B, Инструкция по эксплуатации

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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. When gated, the output 
will complete the full pulse width if the output is high, and then stop triggering. Pulses 
are not truncated. 

OPERATION AT LOW AMPLITUDES

This instrument will generate the best waveforms when operated near maximum
amplitude. If amplitudes less than ~ 4% of the full-scale value are desired, better results
will be obtained if the pulse generator is operated at a higher amplitude, and an
attenuator is connected to the output.

Avtech recommends the BW-SxxW2+ series of 18 GHz coaxial attenuators from Mini-
Circuits, 

http://www.minicircuits.com/

. (The “xx” in the part number is replaced with the

numeric attenuation value in dB).

21

Содержание AVMR-2D-B

Страница 1: ...BER 13997 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 C...

Страница 2: ...r 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 ratings This warranty i...

Страница 3: ...CHECK 10 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...

Страница 4: ...NG 31 WIRING DIAGRAMS 32 WIRING OF AC POWER 32 WIRING OF DC POWER 33 PCB 158R5 LOW VOLTAGE POWER SUPPLY 34 PCB 235C HIGH VOLTAGE DC POWER SUPPLY 35 PCB 216E PRF PW TWEAKING PCB 36 PCB 231A INTERNAL DC...

Страница 5: ...g at 3 4V approximately An internal relay switched 15 dB attenuator is used to provide the lower amplitudes The AVMR 2D B is a highly flexible instrument Aside from the internal trigger source it can...

Страница 6: ...SMA one BNC for use on external trigger inputs Optional accessory kit coaxial cables and adapters Add the suffix AK8 to the model number to include the recommended accessory kit Consists of one 12 inc...

Страница 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...

Страница 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...

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 activiti...

Страница 10: ...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 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...

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...

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 ma...

Страница 14: ...Nominal Mains Voltage Rating Case Size Recommended Replacement Part Littelfuse Part Number Digi Key Stock Number 1 2 AC 100 240V 0 5A 250V Time Delay 5 20 mm 0218 500HXP F2416 ND 3 DC N A 1 6A 250V Ti...

Страница 15: ...bout 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...

Страница 16: ...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...

Страница 17: ...e 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 t...

Страница 18: ...This Ethernet connector allows the instrument to be remotely controlled using the VXI 11 3 ssh secure shell telnet and http web protocols See the Programming Manual for B Instruments for more details...

Страница 19: ...elay is set to a positive 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 interna...

Страница 20: ...ment 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 i...

Страница 21: ...ggering Pulses are not truncated OPERATION AT LOW AMPLITUDES This instrument will generate the best waveforms when operated near maximum amplitude If amplitudes less than 4 of the full scale value are...

Страница 22: ...s option adds a bias tee circuit on the output and adds an internal 0 to 5V DC bias source The offset level can be set by the front panel controls or by computer commands The internal DC source is act...

Страница 23: ...strument should be turned off when the instrument is not in use In the case of failure the switching elements are easily replaced following the procedure described in a following section DO NOT EXCEED...

Страница 24: ...the sampling scope vertical input channel will insure a peak input signal to the sampling scope of less than 1 Volt Factory tests are conducted using Mini Circuits model BW S20W2 attenuators b The TRI...

Страница 25: ...menu item b Press the CHANGE button The delay submenu will appear Rotate the ADJUST knob until the delay is set at 100 ns c The arrow pointer should be pointing at the Normal choice If it is not pres...

Страница 26: ...ing scope controls d Rotate the ADJUST knob The amplitude as seen on the oscilloscope should vary Return it to 10V e PN units only Press the button on the front panel The amplitude as seen on the osci...

Страница 27: ...n 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 50 ns sets the pulse widt...

Страница 28: ...e PERiod numeric value WIDTh numeric value DCYCle numeric value HOLD WIDTh DCYCle DELay numeric value GATE TYPE ASYNC SYNC LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value EXTerna...

Страница 29: ...er 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 query form SRE numeri...

Страница 30: ...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 31: ...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 32: ...st G 1 G 2 B1 G 4 G 3 L N G X2 CORCO M6EGG 1 2POWERENTRY M O DULE 1 1b 1a 2 2b 2a X1 POWERSWITCHSW325 ND CWINDUSTRIES G RS 4022 0013 A1 BRO WN A2 BLUE A3 BLACK A4 WHITE GR N AMB D1 P395 NDLED GRN AMB...

Страница 33: ...9 FAN J10 GND GND GND 20 AWG C J12 GND C J8 GND J11 X1 PCB158R5 CHSGND 15 O Y 10KOY NOTUSED 4 7K 5K 3266W NOTUSED 0 TO 36V VAR APDGND HV HV HV HV GND LV SSR N C VC 235B R3 R5 R6 R7 R8 R9 U1 R10 R11 PS...

Страница 34: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY...

Страница 35: ...PCB 235C HIGH VOLTAGE DC POWER SUPPLY...

Страница 36: ...PCB 216E PRF PW TWEAKING PCB...

Страница 37: ...PCB 231A INTERNAL DC OFFSET FUNCTION...

Страница 38: ...PCB 151D RANGE POLARITY RELAY BOARD...

Страница 39: ...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...

Страница 40: ...UST 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...

Страница 41: ...DA 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...

Страница 42: ...15V 4 15V 5 BD4 PCB231A OT N O COM N C K2 401 2308 24V N O COM N C K1 401 2308 24V M4 BW S15W2 CONN2 GATE CONN3 EXTTRIG 15V CHSGND 15V 24V NO OLO C HA NG ES R EQ UIR EDO NPCB151D 1 R EM O VER12 ON E...

Страница 43: ...PERFORMANCE CHECKSHEET...

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