Avtech AV-112A-PS User manual

INSTRUCTIONS
MODEL AV-112A-PS
0 to ±200V, 300 kHz
VARIABLE-GAIN
LINEAR AMPLIFIER
SERIAL NUMBER ____________
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
P.O. BOX 265
OGDENSBURG, NY
U.S.A. 13669-0265
TEL [phone] (USA & Canada) or [phone] (Intl)
FAX [phone] (USA & Canada) or [phone] (Intl)
[e-mail] - http //www.avtechpulse.com/
X
BOX 5120, LCD MERIVALE
OTTAWA, ONTARIO
CANADA K2C 3H5

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 SUPPORT
Phone [phone] (USA & Canada) or [phone] (International)
Fax [phone] (USA & Canada) or [phone] (International)
E-mail [email protected]
World Wide Web http //www.avtechpulse.com
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TABLE OF CONTENTS
WARRANTY......................................................................................................................2
TECHNICAL SUPPORT...................................................................................................2
TABLE OF CONTENTS....................................................................................................3
INTRODUCTION...............................................................................................................5
HIGH-VOLTAGE PRECAUTIONS....................................................................................5
SPECIFICATIONS.............................................................................................................6
REGULATORY NOTES....................................................................................................7
FCC PART 18.......................................................................................................................... 7
EC DECLARATION OF CONFORMITY..................................................................................7
DIRECTIVE 2002/95/EC (RoHS).............................................................................................8
DIRECTIVE 2002/96/EC ( EEE)............................................................................................8
AC PO ER SUPPLY REGULATORY NOTES.......................................................................9
INSTALLATION..............................................................................................................10
VISUAL CHECK.................................................................................................................... 10
PO ER RATINGS................................................................................................................10
CONNECTION TO THE PO ER 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.............................................................................................1
BASIC CONTROL................................................................................................................. 18
CAPACITIVE LOADS............................................................................................................18
CABLE LENGTHS................................................................................................................. 19
CALIBRATION......................................................................................................................19
OPERATIONAL CHECK.................................................................................................20
MECHANICAL INFORMATION......................................................................................22
TOP COVER REMOVAL.......................................................................................................22
RACK MOUNTING................................................................................................................22
ELECTROMAGNETIC INTERFERENCE..............................................................................22
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MAINTENANCE..............................................................................................................23
REGULAR MAINTENANCE..................................................................................................23
CLEANING............................................................................................................................23
WIRING DIAGRAMS.......................................................................................................24
IRING OF AC PO ER.......................................................................................................24
PCB 158N - LO VOLTAGE PO ER SUPPLY, 1/3............................................................25
PCB 158N - LO VOLTAGE PO ER SUPPLY, 2/3............................................................26
PCB 158N - LO VOLTAGE PO ER SUPPLY, 3/3............................................................27
PCB 168B - HIGH VOLTAGE DC PO ER SUPPLY............................................................28
MAIN SIGNAL IRING.........................................................................................................29
PERFORMANCE CHECK SHEET..................................................................................30
Manual Reference /fileserver2/officefiles/instructword/av-112/AV-112A-PS, edition 6.odt.
Last modified May 22, 2013.
Copyright © 2013 Avtech Electrosystems Ltd, All Rights Reserved.
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INTRODUCTION
The Model AV-112A-PS variable-gain linear amplifier accepts input voltages in the
range of 0 to ±2V, and has a variable gain of < +1 to > +100. The maximum output
voltage is ±200V. The AV-112A-PS will drive load impedances of 5 kΩ or higher.
This instrument is intended for use in research, development, test and calibration
laboratories by qualified personnel.
HIGH-VOLTAGE PRECAUTIONS
CAUTION: This instrument provides output voltages as high as ±200 Volts, so
extreme caution must be employed when using this instrument. The instrument should
only be used by individuals who are thoroughly skilled in high voltage laboratory
techniques. The following precaution should always be observed
1. Keep exposed high-voltage wiring to an absolute minimum.
2. Wherever possible, use shielded connectors and cabling.
3. Connect and disconnect loads and cables only when the amplifier is turned off.
4. Keep in mind that all cables, connectors, oscilloscope probes, and loads must
have an appropriate voltage rating.
5. Do not attempt any repairs on the instrument, beyond the fuse replacement
procedures described in this manual. Contact Avtech technical support (see page
2 for contact information) if the instrument requires servicing.
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SPECIFICATIONS
Model AV-112A-PS
Output amplitude 0 to ±200 Volts
Maximum peak current 40 mA
Maximum average current 40 mA
Output polarity Bipolar
Load impedance ≥ 5 kΩ
Output resistance1≈ 50 Ω
Bandwidth (f-3dB) 300 kHz
Rise time (20%-80%, for
maximum output) 1 us
Average output power
(maximum) 8 W
Voltage gain2×1 to ×100
Gain polarity Standard Non-inverting (+)
Optional4 Switchable between Non-inverting (+) and Inverting (-) modes
Input range20 to ± 2 Volts
Input impedance 1 kΩ
Dual channel option Not available.
DC offset option30 to ±200 Volts
Connectors In, Out BNC
Dimensions 100 mm x 430 mm x 375 mm (3.9” x 17” x 14.8”)
Power requirement 100-240 Volts, 50-60 Hz
1) “Output resistance” is the internal resistance in series with output. Non-zero output impedances (ROUT) will reduce the maximum output amplitude
slightly when operating into low load impedances. That is, VOUT = VSET × RLOAD / (RLOAD + ROUT), where VSET is the set amplitude and RLOAD is the load
resistance.
2) These parameters can easily be adapted to meet special requirements. Contact Avtech ([email protected]) with your special application.
3) To specify the DC offset option, add the suffix -OS to the model number. The sum of the amplitude and the offset must remain within the rated
output amplitude range – i.e., this option does not change the minimum or maximum obtainable output voltage.
4) Add the suffix -INV to specify the switchable gain polarity featu
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REGULATORY NOTES
FCC PART 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 ([e-mail]) 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 ([e-mail]) if you require assistance.
EC DECLARATION OF CONFORMITY
We Avtech Electrosystems Ltd.
P.O. Box 5120, LCD Merivale
Ottawa, Ontario
Canada K2C 3H4
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
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and that this pulse generator meets the intent of the Low Voltage Directive 72/23/EEC
as amended by 93/68/EEC. 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 2002/95/EC (RoHS)
This instrument is exempt from Directive 2002/95/EC of the European Parliament and of
the Council of 27 January 2003 on the Restriction of the use of certain Hazardous
Substances (RoHS) in electrical and electronic equipment. Specifically, Avtech
instruments are considered "Monitoring and control instruments" (Category 9) as
defined in Annex 1A of Directive 2002/96/EC. The Directive 2002/95/EC only applies to
Directive 2002/96/EC categories 1-7 and 10, as stated in the "Article 2 - Scope" section
of Directive 2002/95/EC.
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.
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AC POWER SUPPLY REGULATORY NOTES
This instrument converts the AC input power to the +24V DC voltage that powers the
internal circuitry of this instrument using a Tamura AAD130SD-60-A switching power
supply. According to the manufacturer, the Tamura AAD130SD-60-A has the following
certifications
UL60950-1
IEC60950 -1
CSA C22.2 No. 60950- 1
EN60950 -1
and is compliant with
EN61000-3-2
EN61000-4-2 Level 2
EN61000-4-2 Level 3 (Air Only)
EN61000-4-4 Level 3
EN61000-4-5 Level 3
EN61000-4-11
CISPR 11 and 22 FCC Part 15 Class B (conducted)
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INSTALLATION
VISUAL CHECK
After unpacking the instrument, examine to ensure that it has not been damaged in
shipment. Visually inspect all connectors, knobs, and handles. Confirm that a power
cord is with the instrument. If the instrument has been damaged, file a claim
immediately with the company that transported the instrument.
POWER RATINGS
This instrument is intended to operate from 100 - 240 V, 50 - 60 Hz.
The maximum power consumption is 90 Watts. Please 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 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 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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