AVTECH ELECTROSYSTEMS LTD. AVG-4A-B Manuale utente

INSTRUCTIONS

MODEL AVG-4A-B

90 - 600 Volts, 10 kHz IM ULSE GENERATOR

WITH IEEE 488.2 AND RS-232 CONTROL

SERIAL NUMBER: 14087

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

WARRANTY

Avtech Electrosystems Ltd. warrants products of its manufacture to be free

from defects in material and workmanship under conditions of normal use. If,

within one year after delivery to the original owner, and after prepaid return by

the original owner, this Avtech product is found to be defective, Avtech shall 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 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 SU ORT

hone: 888-670-8729 (USA & Canada) or +1-613-686-6675 (International)

Fax: 800-561-1970 (USA & Canada) or +1-613-686-6679 (International)

E-mail: [email protected]

World Wide Web: http://www.avtechpulse.com

TABLE OF CONTENTS

WARRANTY......................................................................................................................2

TECHNICAL SUPPORT...................................................................................................2

TABLE OF CONTENTS....................................................................................................3

INTRODUCTION...............................................................................................................5

SPECIFICATIONS............................................................................................................6

REGULATORY NOTES....................................................................................................7

FCC PART 18.......................................................................................................................... 7

EC DECLARATION OF CONFORMITY..................................................................................7

DIRECTIVE 2011/65/EU (RoHS).............................................................................................8

DIRECTIVE 2002/ 6/EC (WEEE)............................................................................................8

FIRMWARE LICENSING.........................................................................................................

INSTALLATION..............................................................................................................10

VISUAL CHECK.................................................................................................................... 10

POWER RATINGS................................................................................................................10

CONNECTION TO THE POWER SUPPLY...........................................................................10

PROTECTION FROM ELECTRIC SHOCK...........................................................................11

ENVIRONMENTAL CONDITIONS........................................................................................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....................................................................................................1

TRIGGER MODES................................................................................................................20

GATING MODES...................................................................................................................20

AMPLITUDE DRIFT..............................................................................................................21

AVAILABLE OPTIONS...................................................................................................22

-M OPTION............................................................................................................................22

-OS OPTION.......................................................................................................................... 22

PROTECTING YOUR INSTRUMENT.............................................................................23

TURN OFF INSTRUMENT WHEN NOT IN USE...................................................................23

DO NOT EXCEED 10 kHz.....................................................................................................23

USE A 50Ω LOAD.................................................................................................................23

OPERATIONAL CHEC .................................................................................................24

MECHANICAL INFORMATION......................................................................................27

TOP COVER REMOVAL.......................................................................................................27

RACK MOUNTING................................................................................................................27

ELECTROMAGNETIC INTERFERENCE..............................................................................27

MAINTENANCE..............................................................................................................28

REGULAR MAINTENANCE..................................................................................................28

CLEANING............................................................................................................................28

TRIGGER DAMAGE..............................................................................................................28

PROGRAMMING YOUR IMPULSE GENERATOR.......................................................29

KEY PROGRAMMING COMMANDS....................................................................................2

ALL PROGRAMMING COMMANDS.....................................................................................30

WIRING DIAGRAMS.......................................................................................................32

WIRING OF AC POWER.......................................................................................................32

WIRING OF DC POWER.......................................................................................................33

PCB 158R5 - LOW VOLTAGE POWER SUPPLY................................................................34

PCB 168C - HIGH VOLTAGE DC POWER SUPPLY............................................................35

PCB 104G - KEYPAD / DISPLAY BOARD...........................................................................36

MAIN WIRING....................................................................................................................... 37

PERFORMANCE CHEC SHEET.................................................................................38

Manual Reference: /fileserver2/officefiles/instructword/avg/AVG-4A-B,ed4.odt.

Last modified December 14, 2020.

INTRODUCTION

The AVG-4A-B is a high performance, G IB and RS232-equipped instrument capable

of generating up to 600V at repetition rates up to 10 kHz into 50Ω loads. The pulse

width is fixed at ≤ 5 ns (measured at 20% rise time). The AVG-4A-B includes an internal

trigger source, but it can also be triggered or gated by an external source. A front-panel

pushbutton can also be used to trigger the instrument.

The output voltage polarity depends on the model number:

"- " units: +90 to +600 Volts

"-N" units: -90 to -600 Volts

"- N" units: ±90 to ±600 Volts

The AVG-4A-B features 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 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 instrument

settings, and recall this setup at a later time.

This instrument is intended for use in research, development, test and calibration

laboratories by qualified personnel.

S ECIFICATIONS

Model1:AVG-4A-B

Amplitude2,7,8: 90 - 600 V

ulse width, measured at: ≤ 5 ns, at 20%

Rise time (20%-80%): ≤ 1.5 ns

Fall time (80%-20%): ≤ 3 ns

RF: 0 to 10 kHz

Required load: 50Ω7

olarity3:ositive or negative or both (specify)

G IB & RS-232 control1:Standard on -B units.

Ethernet port, for emote

control using VXI-11.3, ssh,

telnet, & web:

Included. Recommended as a modern alternative to G IB / RS-232.

See http://www.avtechpulse.com/options/vxi for details.

Settings accuracy: Not specified / not calibrated.

Verify the output parameters with a calibrated oscilloscope.

LabView Drivers: Check http://www.avtechpulse.com/labview for availability and downloads

ropagation delay: ≤ 50 ns (Ext trig in to pulse out)

Jitter: ± 100 ps (Ext trig in to pulse out)

DC offset: -OS option4: Apply required DC offset (± 50 Volts, 250 mA DC max)

to rear-panel solder terminals

Trigger modes: Internal trigger, external trigger (TTL level pulse, > 10 ns, 1 kΩ input impedance),

front-panel “Single ulse” pushbutton, or single pulse trigger via computer command.

Variable delay: 0 to 1.0 seconds, for all trigger modes (including external trigger)

Sync out: + 3 Volts, 200 ns, will drive 50 Ohm loads.

Gate input: Active high or low, switchable. Suppresses triggering when active.

Monitor output: Optional5: rovides a 20 dB attenuated coincident replica of main output

Connectors: Out: SMA9, Trig, Sync, Gate: BNC

Dimensions (H x W x D): 100 mm x 430 mm x 375 mm (3.9” x 17” x 14.8”)

ower: 100 - 240 Volts, 50 - 60 Hz

Chassis material: Cast aluminum frame & handles, blue vinyl on aluminum cover plates

Temperature range: +5°C to +40°C

1. -B suffix indicates IEEE-488.2 G IB and RS-232 control of amplitude, pulse width, RF and delay (see http://www.avtechpulse.com/gpib).

2. For operation at amplitudes of less than 20% of full-scale, best results will be obtained by setting the amplitude near full-scale and using external attenuators on the

output.

3. Indicate desired polarity by suffixing model number with - or -N (i.e. positive or negative) or - N for the dual polarity option. AVX-1 transformer may be used to

invert polarity.

4. For DC offset option suffix model number with -OS.

5. For monitor option add suffix -M.

6. Falls to 180V for RF above 10 kHz.

7. A 50 Ohm load is required. Other loads may damage the instrument. Consult Avtech ([email protected]) if you need to drive other load impedances.

8. Maximum amplitudes are for positive outputs only. The maximum negative amplitude for -N and - N units will be approximately 10% lower, due to the use of an internal

inverting transformer.

REGULATORY NOTES

FCC ART 18

This device complies with part 18 of the FCC rules for non-consumer industrial,

scientific and medical (ISM) equipment.

This instrument is enclosed in a rugged metal chassis and uses a filtered power entry

module (where applicable). The main output signal is provided on a shielded connector

that is intended to be used with shielded coaxial cabling and a shielded load. Under

these conditions, the interference potential of this instrument is low.

If interference is observed, check that appropriate well-shielded cabling is used on the

output connectors. Contact Avtech (info@avtechpulse.com) for advice if you are unsure

of the most appropriate cabling. 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 noted, they should be

tightened. Contact Avtech ([email protected]) if you require assistance.

EC DECLARATION OF CONFORMITY

We Avtech Electrosystems Ltd.

.O. Box 5120, LCD Merivale

Ottawa, Ontario

Canada K2C 3H5

declare that this pulse generator meets the intent of Directive 2004/108/EG for

Electromagnetic Compatibility. Compliance pertains to the following specifications as

listed in the official Journal of the European Communities:

EN 50081-1 Emission

EN 50082-1 Immunity

and that this pulse generator meets the intent of the Low Voltage Directive 2006/95/EC.

Compliance pertains to the following specifications as listed in the official Journal of the

European Communities:

EN 61010-1:2001 Safety requirements for electrical equipment for

measurement, control, and laboratory use

DIRECTIVE 2011/65/EU (RoHS)

We Avtech Electrosystems Ltd.

.O. Box 5120, LCD Merivale

Ottawa, Ontario

Canada K2C 3H5

declare that, to the best of our knowledge, all electrical and electronic equipment (EEE)

sold by the company are in compliance with Directive 2011/65/EU of the European

arliament and of the Council of 8 June 2011 on the restriction of the use of certain

hazardous substances in electrical and electronic equipment (also known as “RoHS

Recast”). In addition, this declaration 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 ( b) < 1000 ppm (0.1% by mass)

Mercury (Hg) < 1000 ppm (0.1% by mass)

Hexavalent Chromium (Cr6+) < 1000 ppm (0.1% by mass)

olybrominated Biphenyls ( BB) < 1000 ppm (0.1% by mass)

olybrominated Diphenyl ethers ( BDE) < 1000 ppm (0.1% by mass)

Cadmium (Cd) < 100 ppm (0.01% by mass)

Bis(2-ethylhexyl) phthalate (DEH ) < 1000 ppm (0.1% by mass)

Butyl benzyl phthalate (BB ) < 1000 ppm (0.1% by mass)

Dibutyl phthalate (DB ) < 1000 ppm (0.1% by mass)

Diisobutyl phthalate (DIB ) < 1000 ppm (0.1% by mass)

DIRECTIVE 2002/96/EC (WEEE)

European customers who have purchased this equipment directly from Avtech will have

completed a “WEEE Responsibility Agreement” form, accepting responsibility for WEEE

compliance (as mandated in Directive 2002/96/EC of the European Union and local

laws) on behalf of the customer, as provided for under Article 9 of Directive

2002/96/EC.

Customers who have purchased Avtech equipment through local representatives

should consult with the representative to determine who has responsibility for WEEE

compliance. Normally, such responsibilities with lie with the representative, unless other

arrangements (under Article 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

condition of its licensing. This source code is available upon request (contact

[email protected]om).

Earlier firmware versions do not contain any open source software.

INSTALLATION

VISUAL CHECK

After unpacking the instrument, examine to ensure that it has not been damaged in

shipment. Visually inspect all connectors, knobs, liquid crystal displays (LCDs), and the

handles. Confirm that a power cord, a G IB cable, and two instrumentation manuals

(this manual and the “ rogramming Manual for -B Instruments”) are with the instrument.

If the instrument has been damaged, file a claim immediately with the company that

transported the instrument.

OWER RATINGS

This instrument is intended to operate from 100 - 240 V, 50 - 60 Hz.

The maximum power consumption is 57 Watts. lease see the “FUSES” section for

information about the appropriate AC and DC fuses.

This instrument is an “Installation Category II” instrument, intended for operation from a

normal single-phase supply.

CONNECTION TO THE OWER SU LY

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 with the

instrument. The mains supply must be earthed, and the cord used to connect the

instrument to the mains supply must provide an earth connection. (The supplied cord

does this.)

Warning: Failure to use a grounded outlet may result in injury or death due to

electric shock. This product uses a power cord with a ground connection. It must be

connected to a properly grounded outlet. The instrument chassis is connected to the

ground wire in the power cord.

The table below describes the power cord that is normally supplied with this instrument,

depending on the destination region:

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