3102D HV Power Supply User`s Manual
Contents
1. 10 Output The 3102D has two rear panel output connectors HV OUTPUT and 10 OUTPUT Canberra recommends that only one of these outputs be used at a time For detectors operating at relatively low bias voltages and requiring little current the 10 output should be used This output is provided by means of a simple voltage di vider network which has an impedance of 20 MQ Therefore loading effects have to be taken into account if there is a significant current drain The advantage of the 10 output is that the zero offset and the control are better by a factor of 10 over that of the HV OUTPUT Most detectors for example Canberra PIPS detectors Si Li detectors and Low Energy LEGe detectors take very little current and are thus compatible with the 10 output The 10 output should never be used with scintillation detectors which draw relatively large currents Operating Instructions Preventive Maintenance Preventive maintenance is not required for this unit When needed the front panel of the unit may be cleaned Remove power from the unit before cleaning Use only a soft cloth dampened with warm water and make sure the unit is fully dry before restoring power Because of access holes in the NIM wrap DO NOT use any liquids to clean the wrap side or rear panels 4 Circuit Description A functional schematic of the Model 3102D is included at the rear of the manual The high voltage module is basically a de to de converter whic2. H V OUTPUT Provides 15 to 2000 V de at 1 mA output 10 OUTPUT current capability provides 1 5 to S 200 V dc output impedance 20 Ma INHIBIT Accepts positive inhibit signal from preamp or NIM LN monitors MODEL 3102D 31060 BIN POWER Accepts power from the NIM Bin Figure 2 Rear Panel Controls Controls and Connectors This is a brief descriptions of the internal controls For more detailed information re fer to Appendix A Specifications OUTPUT DISPLAY POLARITY BRIGHTNESS Shown in Pos Position POS EEEFEFEFEFEFEFFEEEFFEFEEEEN NEG INHIBIT A Latched B Unlatched INHRG OVERLOAD Inhibit Range A Latched B Unlatched Figure 3 Internal Controls Installation 3 Operating Instructions The Model 3102D is factory set for positive output polarity If negative polarity is re quired change the internal polarity board before installing the unit in the NIM bin re fer to the Internal Controls section below for instructions Installation The Canberra Model 2000 NIM bin and Power Supply or equivalent power supply conforming to DOE ER 00457T will accommodate the Model 3102D The right side cover of the unit acts as a guide for insertion of the unit Secure the module in place by turning the two front panel captive screws cl
3. SIZE Standard single width NIM module 3 43 x 22 12 cm 1 35 x 8 71 in per DOE ER 0457T NET WEIGHT 1 4 kg 3 1 Ib SHIPPING WEIGHT 2 4 kg 5 3 Ib Environmental OPERATING TEMPERATURE 0 to 50 C OPERATING HUMIDITY 0 80 relative non condensing Tested to the environmental conditions specified by EN 61010 Installation Category I Pollution Degree 2 12 B Installation Considerations This unit complies with all applicable European Union requirements Compliance testing was performed with application configurations commonly used for this module i e a CE compliant NIM Bin and Power Supply with additional CE com pliant application specific NIM were racked in a floor cabinet to support the module under test During the design and assembly of the module reasonable precautions were taken by the manufacturer to minimize the effects of RFI and EMC on the system However care should be taken to maintain full compliance These considerations include e A rack or tabletop enclosure fully closed on all sides with rear door access e Single point external cable access e Blank panels to cover open front panel Bin area e Compliant grounding and safety precautions for any internal power distribution e The use of CE compliant accessories such as fans UPS etc Any repairs or maintenance should be performed by a qualified Canberra service representative Failure to use exact replacement components or failure to reassembl
4. panel 10 turn control permits continuous adjustment of the output voltage POLARITY Internal programming plug sets output polarity Indicators 10 HV OUTPUT 3 digit panel meter 0 to 2 00 kV POLARITY Front panel LEDs indicate polarity continuously Performance INHIBIT LED indicates Inhibit status OVERLOAD LED indicates overload status Performance RIPPLE AND NOISE lt 3 uV peak to peak at 1 WA OUTPUT STABILITY Long term drift of output voltage is lt 0 01 hr and lt 0 02 8 hr at constant input line voltage load and ambient temperature after a 30 minute warmup TEMPERATURE COEFFICIENT lt 50 ppm C after 30 minute warmup REGULATION lt 0 001 variation in output voltage over the load range and lt 0 001 for 0 1 input voltage change within the operating range at constant ambi ent temperature OVERLOAD PROTECTION Power supply will withstand any overload including a short circuit for an indefinite period CURRENT LIMIT 1 3 mA maximum DIAL ACCURACY 1 of full scale METER ACCURACY 0 6 of full scale plus 10 volts Connectors HV OUTPUT Rear panel SHV 10 OUTPUT Rear panel SHV INHIBIT Rear panel BNC 11 Specifications Power Requirements 24 V 70 mA 12 V 160 mA 24 V 10 mA 12 V 150 mA With Brightness Control J4 set to HI 12 V will draw 265 mA which exceeds the normal Bin allotment of 167 mA for a single width module Physical
5. MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE SHALL APPLY IN NO EVENT SHALL CANBERRA HAVE ANY LIABILITY FOR ANY SPECIAL EXEMPLARY PUNITIVE INDIRECT OR CONSEQUENTIAL LOSSES OR DAMAGES OF ANY NATURE WHATSOEVER WHETHER AS A RESULT OF BREACH OF CONTRACT TORT LIABILITY INCLUDING NEGLIGENCE STRICT LIABILITY OR OTHERWISE REPAIR OR REPLACEMENT OF THE SOFTWARE OR EQUIPMENT DURING THE APPLICABLE WARRANTY PERIOD AT CANBERRA S COST OR IN THE CASE OF DEFECTIVE SERVICES REPERFORMANCE AT CANBERRA S COST IS YOUR SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY EXCLUSIONS Our warranty does not cover damage to equipment which has been altered or modified without our written permission or damage which has been caused by abuse misuse accident neglect or unusual physical or electrical stress as determined by our Service Personnel We are under no obligation to provide warranty service if adjustment or repair is required because of damage caused by other than ordinary use or if the equipment is serviced or repaired or if an attempt is made to service or repair the equipment by other than our Service Personnel without our prior approval Our warranty does not cover detector damage due to neutrons or heavy charged particles Failure of beryllium carbon composite or polymer windows or of windowless detectors caused by physical or chemical damage from the environment is not covered by warranty We are not responsible for damage sustai
6. Model 3102D HV Power Supply User s Manual 9231570A ISO 9001 SYSTEM C CERTIFIED Copyright 2004 Canberra Industries Inc All rights reserved The material in this document including all information pictures graphics and text is the property of Canberra Industries Inc and is protected by U S copyright laws and international copyright conventions Canberra expressly grants the purchaser of this product the right to copy any material in this document for the purchaser s own use including as part of a submission to regulatory or legal authorities pursuant to the purchaser s legitimate business needs No material in this document may be copied by any third party or used for any commercial purpose or for any use other than that granted to the purchaser without the written permission of Can berra Industries Inc Canberra Industries 800 Research Parkway Meriden CT 06450 Tel 203 238 2351 FAX 203 235 1347 http www canberra com The information in this document describes the product as accu rately as possible but is subject to change without notice Printed in the United States of America Table of Contents 1 hfroductioni siria ce ome 1 2 Controls and ComnectorS 2 3 Operating Instructions eee 5 Installation ara ers a aa La e 5 Internal Controls 242 hb eee a A 3 Polarity Selection s se makean t ee e dai 6 JA Brightness Controls s 002
7. e the unit as delivered may affect the unit s compliance with the specified EU requirements 13 Notes Installation Considerations A CANBERRA Warranty Canberra we us our warrants to the customer you your that for a period of ninety 90 days from the date of shipment software provided by us in connection with equipment manufactured by us shall operate in accordance with applicable specifications when used with equipment manufactured by us and that the media on which the software is provided shall be free from defects We also warrant that A equipment manufactured by us shall be free from defects in materials and workmanship for a period of one 1 year from the date of shipment of such equipment and B services performed by us in connection with such equipment such as site supervision and installation services relating to the equipment shall be free from defects for a period of one 1 year from the date of performance of such services If defects in materials or workmanship are discovered within the applicable warranty period as set forth above we shall at our option and cost A in the case of defective software or equipment either repair or replace the software or equipment or B in the case of defective services reperform such services LIMITATIONS EXCEPT AS SET FORTH HEREIN NO OTHER WARRANTIES OR REMEDIES WHETHER STATUTORY WRITTEN ORAL EXPRESSED IMPLIED INCLUDING WITHOUT LIMITATION THE WARRANTIES OF
8. e amcam de AAA 6 InbibitGontrok ate sae ee ra RR I oR eNe E 6 Automatic Overload Shutdown 2 2 ee 7 SElUp iu SRR PRES e a ti 7 Divide By 10 QUIput a pena e Ge a Pe we T Preventive Maintenance LL 8 4 Circuit Description 2 2 2 2 22 9 A Specifications 2 2 2 2 Ri 10 Inputs iu pepe ee e a a e e e A 10 OUTPUTS oe e ee ea 10 Controls epr et e di ay ie e Had 10 Indicators sagre ee heehee ata nei nea eni 10 PEF OTMANES iu ai Ee a E ent 11 COMNECIOIS iii ae aE e kap e eop de EEE SE ERED a OR 11 Power Requirements s bes sa eters RI Ra ee dee a da Some RL ew oe 12 Physical sucd ais hie kh SG Sa A wee ee eee OSG SEO SS A 12 Environmental s siae hae dee OE EER ee ELE ER e ee ee 12 B Installation Considerations 13 Notes 1 Introduction The Canberra Model 3102D High Voltage Power Supply is a single width NIM mod ule designed primarily for use with photomultiplier and electron multiplier tubes But it can be used with any detector requiring a bias voltage up to 2000 V and a current level of 1 mA or less The 3102D allows the user to select from two continuously adjustable outputs one ranging from 15 to 2000 V dc and the other from 1 5 to 200 V dc The output voltage is measured and displayed by a three digit voltmeter In addition this unit al lows the user to sel
9. ect the output voltage polarity with an internal control The 3102D can withstand any overload or short circuit for an indefinite period of time It can be set using an internal jumper to allow for a manual reset or an automatic reset when the fault condition is removed The 3102D features an output rise time of five seconds to protect preamplifiers and de tectors from excessive surge currents while charging Controls and Connectors 2 Controls and Connectors This is a brief description of the front panel controls and connectors For more detailed information refer to Appendix A Specifications H V POWER SUPPLY MODEL 3102D KILOVOLTS KILOVOLTS Three digit volt meter measures and displays the output voltage roma POLARITY Continuously indi O NEGATIVE cates HV OUTPUT voltage po larity regardless of position of STATUS Inhibit indicator lights HV ON OFF switch when output is cut off by rear TT STATUS panel Inhibit signal Overload INHIBIT indicator lights when unit OVERLOAD shut down by overload condition VOLTAGE VOLTAGE Allows continuous adjustment of output voltage 200V TURN RESET Restores normal operation following Latched Inhibit or Overload condition HV ON HV ON OFF Enables or o disables HV OUTPUT Figure 1 Front Panel Controls This is a brief description of the rear panel connectors For more detailed information refer to Appendix A Specifications H V OUTPUT
10. efore turning on the unit s NIM bin power Factory set to POSitive J4 Brightness Control Jumper J4 sets the display brightness to HIgh or LOw factory set to LOw In the HI position the display is at its brightest but the unit will draw significantly more cur rent See the Power Requirements specification in Appendix A for details Inhibit Control The Inhibit Function which is independent of the Voltage Control s setting allows the output voltage to be conditionally turned off or latched off by grounding or by apply ing a logic 0 lt 0 7 V to the rear panel INHIBIT connector The front panel INHIBIT STATUS indicator lights when the output has been inhibited Jumper J5 The INHIBIT input is compatible with all Canberra preamps for either position of Jumper plug J5 it isn t necessary to set jumper plug J5 to match the HV INHIBIT logic high level of the associated Canberra preamp Jumper J5 selects the pull up clamp voltage level of the INHIBIT input for compatibil ity with INHIBIT signals from instruments made by other manufacturers With J5 in position 5 factory setting the pull up clamp level is set to 5 volts With J5 set to po sition 12 the pull up clamp level is 12 volts Please consult the manual provided with your instrument for its requirements Jumper J6 Jumper J6 selects the Latched Inhibit Mode or the Conditional Inhibit Mode In the Latched Mode jumper position A factory setting pressing the front pan
11. el RESET button when a logic 1 or open circuit is present at the INHIBIT connector will restore the output voltage In the Conditional Mode jumper position B an INHIBIT input of 22 V or an open circuit enables the output Setup Automatic Overload Shutdown Setup One of the 3102D s circuits monitors the output load current and automatically dis ables the outputs for an overload or a fault condition A short duration arc over or turn on charging transient will not cause shut down The front panel OVERLOAD STATUS indicator lights when the unit has been shut down The unit can be programmed to either automatically resume operation when the fault is removed or to require a manual reset Jumper J7 With Jumper J7 in position A factory setting the front panel RESET button must be pressed to resume normal operation after the fault is removed With Jumper J7 set to position B the output will automatically resume when the fault condition is removed After setting the internal controls install the Model 3102D in the NIM bin Connect the load to the appropriate rear panel SHV connector set the HV ON OFF switch to OFF and set the VOLTAGE control to zero Set the NIM bin power to ON the appro priate polarity LED should light indicating the polarity selected Set the HV ON OFF switch to ON and the VOLTAGE control to the desired setting The front panel digital display will indicate the HV OUTPUT voltage in kilovolts kV Divide By
12. h converts low voltage de power to a high voltage dc output This output voltage is highly regulated and filtered and can be varied by the front panel VOLTAGE control The input to the high voltage de to de converter is obtained from a conventional NIM power supply and uses 12V de and 24 V dc An oscillator determines a high frequency 37 kHz at which all amplification high voltage transformation rectification and filtering occurs The amplification is a func tion of a control voltage which performs the functions of control and regulation A sample of the output voltage is compared with a reference voltage in the sensing cir cuit The sensing circuit generates the control voltage to set and maintain a fixed high voltage output Specifications A Specifications Inputs Outputs Controls INPUT POWER The Model 3102D is powered from a standard NIM Bin and power supply such as the Model 2100 2000 or 1000 INHIBIT Logic low or ground inhibits the HV outputs max logic low lt 0 7 V logic high 21 3 V or open circuit enables HV OUTPUT 15 to 2000 V dc continuously adjustable 1 mA output current ca pability rear panel SHV connector 10 OUTPUT 1 5 to 200 V dc continuously adjustable Z sut 20 MQ rear panel SHV connector ON OFF Front panel toggle switch enables or disables output RESET Pushbutton restores normal operation following a latched Inhibit and or overload fault condition VOLTAGE Front
13. ned in transit You should examine shipments upon receipt for evidence of damage caused in transit If damage is found notify us and the carrier immediately Keep all packages materials and documents including the freight bill invoice and packing list Software License When purchasing our software you have purchased a license to use the software not the software itself Because title to the software remains with us you may not sell distribute or otherwise transfer the software This license allows you to use the software on only one computer at a time You must get our written permission for any exception to this limited license BACKUP COPIES Our software is protected by United States Copyright Law and by International Copyright Treaties You have our express permission to make one archival copy of the software for backup protection You may not copy our software or any part of it for any other purpose Revised 1 Apr 03
14. ockwise until finger tight It is recom mended that the NIM bin power switch be OFF whenever any module is installed or removed The Model 3102D can be safely operated where the ambient air temperature is between 0 C and 50 C Perforations in the top and bottom of the unit s frame permit cooling air to circulate through the module When rack mounted along with other heat generating equipment be sure to provide adequate clearance for a flow of cooling air through the NIM bin Internal Controls Remove the unit s left side cover to change the internal controls Figure 3 shows the position of the internal controls A WARNING The Model 3102D generates lethal high voltage which will be present for several minutes after the unit is switched off Before removing the unit from the NIM bin set the VOLTAGE control to 0 00 volts and the HV ON OFF switch to OFF A Avoid the risk of injury Leave the unit in the NIM bin until the voltage reduces to 0 volts as indicated on the front panel digital display Operating Instructions Polarity Selection Output polarity can be changed by removing the unit s left side cover and changing the polarity selector board s location The board is symmetrical by design Polarity is not affected by orientation When the unit s NIM bin power is turned on the front panel POLARITY preview LEDs will indicate the current polarity selection Canberra recommends that the polarity selection be verified b
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