Avtech AVMP-4-B Instructions Manual Download | Manualshive

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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 ~ 10% 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).

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Summary of Contents for AVMP-4-B

Page 1: ...NUMBER 13944 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 U...

Page 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...

Page 3: ...TALLATION 10 VISUAL 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...

Page 4: ...MAINTENANCE 32 CLEANING 32 WIRING DIAGRAMS 33 WIRING OF AC POWER 33 WIRING OF DC POWER 34 PCB 158R4 LOW VOLTAGE POWER SUPPLY 35 PCB 104F KEYPAD DISPLAY BOARD 1 3 36 PCB 104F KEYPAD DISPLAY BOARD 2 3...

Page 5: ...ushbutton or a computer command can also be used to trigger the instrument The AVMP 4 B features front panel keyboard and adjust knob control of the output pulse parameters along with a four line by 4...

Page 6: ...rovides a 20 dB attenuated coincident replica of main output Connectors Out Monitor SMA Trig Sync Gate BNC Power requirements 100 240 Volts 50 60 Hz Dimensions H x W x D 100 mm 430 mm 375 mm 3 9 17 14...

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: ...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...

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: ...els Fuses 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...

Page 15: ...f the unit is overloaded by operating at an exceedingly high duty cycle or by operating into a very low impedance the protective circuit will disable the output of the instrument and turn the indicato...

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

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: ...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...

Page 19: ...se 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 If the del...

Page 20: ...k 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 pus...

Page 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 10 of the full scale value ar...

Page 22: ...it may be installed after first removing the one Phillips screw on the side panel adjacent to the front handle MONITOR OUTPUT M OPTION The monitor output provides an attenuated replica 20 dB down of t...

Page 23: ...nstrument 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 EXCEE...

Page 24: ...IC TEST ARRANGEMENT 1 Connect the pulse generator to a sampling oscilloscope as shown above Note that a The use of 40 dB attenuator at the sampling scope vertical input channel will ensure a peak inpu...

Page 25: ...rn to the main menu 4 To set the delay to 100 ns a Press the MOVE button until the arrow pointer is pointing at the delay menu item b Press the CHANGE button The delay submenu will appear Rotate the A...

Page 26: ...lloscope Repeat step 4 if required You may also need to adjust the sampling scope controls d Rotate the ADJUST knob The amplitude as seen on the oscilloscope should vary Return it to 10V e PN units on...

Page 27: ...This completes the operational check 27...

Page 28: ...on 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 wid...

Page 29: ...meric value DCYCle numeric value HOLD WIDTh DCYCle DELay numeric value GATE TYPE ASYNC SYNC LEVel HIgh LOw SOURce VOLTage LEVel IMMediate AMPLitude numeric value PROTection TRIPped query only STATUS O...

Page 30: ...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 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...

Page 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...

Page 33: ...T OENCO DER T OLCD 104D BD2 PCB104DKEYPADBO ARD BUNITSONLY Ch a ssisg ro u ndpo st G 1 G 2 B1 RED G 4 G 3 L N G X2 CORCO M6EGG 1 2POWERENTRY M O DULE 1 1b 1a 2 2b 2a X1 POWERSWITCH SW325 ND CWINDUSTRI...

Page 34: ...WG CAP BANK GND HI EXTPS NEGIN GND GND GREEN GND AMBER DC IN DC IN DC IN GND GND GND 20 AWG PCB158R4 HI EXTPS GND K A J1 J2 J3 J4 J5 J6 J7 J8 J9 FAN J10 GND GND GND 20 AWG C J12 GND C J8 GND J11 X1 PC...

Page 35: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY...

Page 36: ...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...

Page 37: ...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...

Page 38: ...A 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...

Page 39: ...PCB 151D RANGE POLARITY RELAY BOARD...

Page 40: ...O 15V 15V CHSGND NEGOLO GND 24V NOOLO GND POSOLO OLOGND 15V 5V CH AN G E SR E Q U IR E DO NPC B 151D FO RPW IN P W O U TINR N G0 1 R E MO VER 12 2 IN S TALLR 13 0 AMPRNG0 PW RNG0 CHANG ES REQ UIREDO N...

Page 41: ...08 MUNITSONLY N O COM N C K3 401 2208 12V CONN5 OUT CONN6 M ON MUNITSONLY IF M IF NO M 24V NO OLO 5V 15V 15V 24V NOOLO GND CHSGND NEGOLO GND 24V NOOLO GND POSOLO OLOGND 15V 5V CH AN G E SR E Q U IR E...

Page 42: ...PERFORMANCE CHECKSHEET...

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