BCM-IHR manual 2-2
Contents
1. Bergoz Instrumentation Espace Allondon Ouest 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 Visit our web site at http www bergoz com Instrumentation Beam Charge Monitor Modular Electronics Integrate Hold Reset User s Manual Rev 2 2 Japan U S A REPIC Corporation GMW Associates 28 3 Kita Otsuka 1 Chome 955 Industrial Road Toshima ku Tokyo 170 0004 San Carlos CA 94070 Tel 03 3918 5326 Fax 03 3918 5712 sales repic co jp Tel 650 802 8292 Fax 650 802 8298 sales gmw com BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 email bergoz bergoz com http www bergoz com Registre des M tiers Bourg en Bresse Registre des ing nieurs Zurich TVA VAT IV A USt N FR88414997130 Sarl capital 152K Siren 414 997 130 R C S Bourg APE 332B Record of updates Version Release date 2 1 February 12 2008 p 6 Oscilloscope plot trace 3 changed to Output View Oscilloscope plot trace 1 changed to Signal View p 7 Oscilloscope plot trace 3 changed to Output View Oscilloscope plot trace 1 changed to Signal View p 8 Oscilloscope plot trace 3 changed to Output View Oscilloscope plot trace 1 changed to Signal View p 15 Trigger delay range specified 350 ns 7 3 us Ex factory setting specified as 4 us 2 2 March 8 2008 p 3 Refers the user to Ann2. The following chassis fuse calibre is required It depends on the AC mains voltage and the number of power blocks 5U 15 15 inserted in the BCM RFC chassis For 220 245 Vac nominal mains voltage 1 power supply 5U 15 15 block 200mA fuse calibre 2 power supply 5U 15 15 blocks 400mA fuse calibre 4 power supply 5U 15 15 blocks 800mA fuse calibre 6 power supply 5U 15 15 blocks 1 25A fuse calibre For 100 125 Vac nominal mains voltage 1 power supply 5U 15 15 block 400mA fuse calibre 2 power supply 5U 15 15 blocks 800mA fuse calibre 4 power supply 5U 15 15 blocks 1 6A fuse calibre 6 power supply 5U 15 15 blocks 2 5A fuse calibre Note Fuse calibre can safely be increased by 2596 in case the recommended fuse calibre is unavailable E g Recommended 200mA fuse can safely be replaced by 250mA fuse
3. 0 corresponds to bit LOW Switch A7 is not connected Bit 7 controls Calibration Enable This function can be enabled during tests by the BCM front panel switch DB9 Remote control key BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 4 Fax 33 450 426 643 User s manual Front panel Module BCM IHR E BCM alibration On Off Cal Timing View Font panel WARNING Jumpers configuration amp Potentiometers settings Your BCM is in the Ex factory configuration Jumper and timing adjustments potentiometers have been configured according to your order Do not change those settings until you are familiar with the Beam Charge Monitor BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 5 Fax 33 450 426 643 User s manual Setup BCM IHR E To rear panel BCM Input 30ns 2 4V 1 kHz Oscilloscope Pulse Generator Chl Ch2 Ch3 Ch4 D D D D m To rear panel Trigger in ICT or FCT Trigger to synchronize oscilloscope Connect as shown on picture ICT or FCT to BCM Input on rear panel Insert Remote Control key in rear panel DB9 connector Note All Remote Control switches should be OFF Make sure your AC mains voltage corresponds to BCM mains voltage Connect BCM chassi
4. L H L 26dB 6dB 20dB H L L 32dB 20dB 12dB L L H 40dB 20dB 20dB L L L Output Polarity Non invert H signal Invert L Calibration Polarity Positive H Negative L Charge selection 1 nC H H 100 pC H L 10 pC L H 1 pC L L Enable Disable Enable H Disable L Calibration Enable and Calibration front panel switch ON are OR ed Therefore BCM will be in calibration mode whenever either Calibration Enable of Calibration switch is ON Bits L low H high Notes The default status i e the status when no external control signal is applied is printed in BOLD BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 19 Fax 33 450 426 643 User s manual MAKING PRECISE MEASUREMENTS WITH THE BCM It is recommended to use a sampling voltmeter with programmable statistics capabilities to read the BCM output signal The Hewlett Packard sampling voltmeter HP 34584 is suitable for this application It exceeds specifications in terms of sampling rate therefore a suitable voltmeter at a lower cost can possibly be found The voltmeter reading must be started triggered when the BCM IHR output pulse is stable i e Z20ys after the BCM IHR trigger pulse For precise measurement the voltmeter should sample the BCM IHR output over 2 300ys and calculate the average For ultimate precision the BCM IHR should execute two measurement cycl
5. Signal lowest level at the beginning of the trace Beam Charge Monitor is ready to receive a Trigger First step up BCM has received Trigger the Trigger delay is elapsing 4ys in ex factory conditions Second step up The trigger delay has elapsed the first integration window starts In ex factory conditions it lasts 4 ws During this window the signal is summed in the output with a negative sign It is the Subtracting window Next step is down The first or Subtracting window has closed The second window starts In ex factory conditions this window has equal duration to the first window duration During this window the input signal is summed with a positive sign It is the Adding window Next step down The second window has closed The Hold time starts During the hold time the BCM output value is held In ex factory conditions the Hold time terminates 400 ys after the trigger Next step down The Hold time is finished The BCM output is reset to zero The Beam Charge Monitor is ready to receive another Trigger BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 9 Fax 33 450 426 643 User s manual Your BCM IHR does not behave as described If your BCM IHR E is in ex factory conditions it should behave as described If it does not check the switch settings on the Remote Control key All switches should be in the OFF position If your BCM IHR E i
6. a IEC connector via an EMI RFI filter and fuse CONNECTOR PINS ALLOCATION DB9 male Remote Control connector Mating connector use any DB9 female connector Locking with UNC4 40 screws Gain selection BitO assises tiet bt emus T oid eet na E ae Tae i Bitl He E EE REE E tapis EE HI LR Ne ia Luce e se Signal polarity issue EISE D eine lues Calibration polarity hier rent nee Calibration charge selection BE OA Gus cesta ab A de sce ne ne lis src cd es ee nt nn Calibt ti n Enables sens anse ete Sennen Gee RE cte tede tes edt Ground H nin nn te p ei i eN OU N 1 00 R BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 24 Fax 33 450 426 643 User s manual ACCESSORIES BCM Chassis BCM RFC XX The BCM RFC XX chassis is built around a 19 Schroff rackable RF shielded chassis Dimensions of the bin 3U x 84F Schroff reference Europac Lab HF RF 20845 283 The BCM RFC XX is available equipped for 1 up to 16 BPM stations XX being the number of stations BCM RFC XX with less than 16 stations are partially equipped BCM RFC 16 As a result all BCM chassis are field upgradable to the full 16 station chassis Chassis rear view Shown here is a 1 2 width 19 rear panel A chassis equipped with gt 8 BCM stations has two such half width rear panels Chassis front Unequipped stations are masked with RF shielded blank panels Card Exte
7. an adjustment from lt 20ys up to gt 600ys Factory set as shown on the Factory Settings label affixed to the BCM module Output Zero Offset Trims the input charge amplifier s zero offset Factory set to zero offset for 1 kHz trigger frequency Please note Ex factory calibration will be lost when on board potentiometer settings are modified BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 SPECIFICATIONS Beam Charge Monitor Input charge Input rise time Gain steps Gain fine adjustment Output Output settling time Output signal hold time Front panel connectors BNC Rear module connector Back panel connectors SMA Back panel DB9 female Front panel switch Front panel potentiometers Recessed front panel potentiometers On board potentiometers Calibration pulse absolute accuracy Power consumption module Card size Chassis size Beam Charge Monitor Integrate Hold Reset Page 22 User s manual 4 nC max lt Ins in 50Q termination 7 steps from 37 dB to 71 dB 1 dB bipolar up to 10 V for high impedance readout Output load 10 mA max Best linearity up to 7V lt 30 us after the trigger up to 600 ys after the trigger pot adjustable Signal View for oscilloscope viewing Output View for oscilloscope Timing View for oscilloscope DIN 41612 M 24 8 male with 1 0 2 4 coaxial inserts BCM Input 50 ohm coaxial cable from ICT or FCT BC
8. potentiometers Access to on board potentiometers is normally not required Exceptional circumstances could make it necessary Please note Ex factory calibration will be lost when on board potentiometer settings are modified To access on board potentiometers pull the BCM out of the chassis BCM module can be removed and inserted live while the power is ON Remove the shield To remove shield Remove screws 2 from under L I Jl EL To adjust the on board potentiometers a card extender is necessary such as Bergoz Instrumentation s BCM XTD BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 21 Fax 33 450 426 643 User s manual SETTINGS Cont d On board potentiometers Voltage Ref 10V for InC Fine Level 8V adjust Signal Calibration input attenuators Signal Output Trigger Input Cycle Hold time Output Window Zero offset balancing Fine Level Continuous gain adjustment 1 dB Factory adjusted for 2 000 V BCM output corresponding to 1 nC in the 50 input at lowest gain 0 dB in first stage and 6 dB in second stage Window Balancing Balances the respective gains of the Adding and Subtracting Integrators Factory set as shown on the Factory Settings label affixed to the BCM module Cycle Hold time Determines the cycle duration Tc Tc must be greater than the or Hold timetrigger delay 2 x Tw Allows
9. pulse can be moved from the second window the adding window into the first window the subtracting window When the calibrated pulse fits entirely into the first subtracting window it should look like this 4 Rug 83 4 15 06 04 Shows internal 9 58 V A calibration pulse Ic 2 E w eml TT Timing View 206 mi ime Bim CE TH 3 A Output View 2 y 2 00 Vv 5 ys Trigger 5 80 V 0 16 V as applied to BCM 5 ys BWL J 5 v oc At 41 264 ps lt 24 234 kHz 2 2 V DC 288 MS s 3 2 V DC 4 0c 2 94 45 V DC J O AUTO BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 8 Fax 33 450 426 643 User s manual Waveforms cont d Adjust your oscilloscope time base to a slower sweep 50 us div It should look like this 4 Aug 03 15 37 47 Signal View ys Shows internal 8 58 V calibration pulse 2 58 ps Timing View 280 mV 3 50 ps Output View 2 00 V Trigger 5 0 V as applied to BCM V DC E a 4 DC 2 8 V p 5 5 v DC 28 MS s 5 V DC E AUTO The complete BCM IHR cycle is visible on the oscilloscope including the BCM output reset to zero Explanation of the Timing View The Timing View is a signal to help the user a adjust the beam pulse inside the integration window b adjust the timing of his readout ADC or sampling voltmeter with the BCM output signal The voltage levels of the Timing View are arbitrary
10. rms 2 mV p p 0 01 0 5 Ohm 25 us 20 to 50 C 94 x 58 x 35 mm 0 38 kgs D lt lt T 220 110 VAC 220 110 VAC 15 5 198 99 VAC 198 99 VAC 185 92 VAC adj range 19 adj range 185 92 VAC SUS 5 5U15 15 ou 0 0 0 5 1 0 A 0 100 200 300 400 mA Ouput voltage and current derating at low AC input voltage OUTPUT IA m OUTPUT 1 OUTPUT 1 t OUTPUT 18 output za OUTPUT 2A x OUTPUT 2 OUTPUT 2B OUTPUT 2B NC NC NC NC INPUT INPUT INPUT NC SUS and 2 X 5015 15 SUS 5U15 15 Input and ouput connections of P 500 94mm BOTTOM VIEW 2s T lus Nx TOP VIEW URN dE ee 1000 i i 10 2 22 8 i 5 9 40 6 40 8 1 26 Clamp for Standard U model has solder pins of 1 2 mm rail mounting for PC mounting 26 B model with screw terminals for wall or rail mounting incl 2 clamps for 35 mm DIN rail VOLTAGE ADU A VOLTAGE ADJ A VOLTAGE AOV B 4 VOLTAGE ADJ B 7 ISOLATION COVER bs g POWER SUPPLY 2 POWER SUPPLY 1 5 E KL E DELTA ELEKTRONKA ob o ap Coding wedges 1 7 37 5 and notches 10 TE 50 4 F 10 3 front panel P 500 Eurocard for 1 or 2 U units incl contra connector H15 Ad VMINUSI313 vid3d ddv exed SUO 92 FO 88 DNY 8I 3300 BLO ve SI SI NS in
11. 630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 27 Fax 33 450 426 643 User s manual Keeping high harmonics of the beam out of the cavity The transformer the gap capacitance and the wall current bypass form together a cavity It is important to prevent unnecessary harmonics from entering the cavity The beam current flows thru the vacuum chamber The wall current follows the conductive vacuum chamber walls Transformer Ceramic gap Pil Slo Wall current bypass The transformer sees the wall current Iw The higher frequencies of the wall current frequency spectrum will pass thru the capacitance of the ceramic gap while the lower frequencies will enter the cavity and induce a flux in the transformer core Note that the full charge of the wall current pulse passes thru the cavity irrespective of the value of the gap capacitance The value C of the gap capacitance determines the higher cutoff frequency of the wall current entering in the cavity The 3dB point is obtained when the impedance of the cavity Zeavity is equal to the impedance of the gap Zap The impedance of the wall current bypass itself can be ignored because it is much lower than the transformer s reflected impedance therefore Output Uout ig N turns LS BEAM 50 50Q ICT lt User connection Zeavity R N2 where R is the load impedance of the transformer 25Q 50Q termination ll 50Q internal load N is the t
12. 642 Fax 33 450 426 643 Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Page 16 User s manual Beam Charge Monitor Output The output is a DC level up to 7V proportional to the pulse charge The output voltage is the difference between the value of the Subtracting Integrator and the Adding Integrator The output may have an offset This output zero offset is user adjustable with on board Output Zero Offset potentiometer To eliminate this offset and make precision measurement see chapter Making precise measurements with the BCM in this manual The output is available on the SMA connector at the rear of the Beam Charge Monitor A front panel BNC is available for oscilloscope viewing Output View Warning Loading the front panel Output View may change the rear panel BCM Output In the IHR Integrate Hold Reset version the output is the value of the last selected pulse only The signal settles in lt 20 us after the end of the second window it is held at that level until the end of the cycle then it is reset to zero The Cycle time Tc or Hold time can be adjusted with on board potentiometer Cycle Hold Time To locate on board potentiometers pls refer to chapter Settings in this manual On line calibration On line calibration is possible at any time when there is no beam Even when the no beam time is short on line calibration may still be possible BCM is equipped with a precise Cali
13. CM under the condition that beam bunch risetime gt 30 ns For bunches with risetime lt 30ns Integrating Current Transformer must be used The sensitivity of the Fast Current Transformer is also called the transfer impedance It depends on the FCT model It is expressed in terms of output pulse voltage as a function of the input pulse current therefore in V A or Q FCT Model Sensitivity Beam Charge to in 50 ohm BCM input Charge termination Ratio FCT XXX 50 1 0 50 V A 100 1 FCT XXX 20 1 1 25 V A 50 1 FCT XXX 10 1 2 50 V A 20 1 FCT XXX 05 1 5 00 V A 10 1 Cable connection When a Fast Current Transformer is used as beam sensor the choice of the cable may be critical The cable must be capable of carrying the frequency spectrum of the signal with acceptable integration and differentiation With fast beam pulses the FCT limits the risetime somewhere below Ins When using an Integrating Current Transformer as beam sensor the choice of the cable is much less critical because the ICT output pulse has a risetime of 20 ns unless it is a special model with short output pulse We made tests with long low quality cable Those tests are reported in Annex I Test of cable length incidence on BCM linearity BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 14 Fax 33 450 426 643 User s manual Signal processing The signa
14. CT or MPCT S is installed over the same ceramic gap these latter instruments are adversely affected by an ohmic value R lt 100 because it shorts the PCT or MPCT sensor The commonly used solution is to etch a narrow groove in the metal deposit to prevent DC conductivity of the gap metallization Wall current bypass and RF shield The two functions of wall current by pass and RF shield can be performed by a solid metal shield attached to the vacuum chamber on either side of the electrical break The easiest is to make a cylindrical enclosure which splits into two half shells The shells can be firmly attached to the vacuum chamber with water hose clamps Material can be aluminium stainless steel or copper Copper oxidation does not seem to be a problem Thermal protection of the ICT The ICT must not be heated beyond 80 C If the vacuum chamber requires bake out a thermal shield must be installed between the vacuum chamber or the heating sleeves and the ICT The thermal shield can be a simple copper cylinder cooled by water circulating in a copper tube brazed onto the cylinder The water circuit must not pass thru the ICT aperture It must enter and go out on the same side of the ICT otherwise it makes a shorting loop around the ICT toroid MAXIMUM STORAGE AND OPERATING TEMPERATURE 80 C 176 F AT ANY TIME The alloy looses its characteristics when heated beyond this temperature BERGOZ Instrumentation Beam Charge Monitor 01
15. M Output for high impedance readout Trigger Input 50 ohm 8 TTL commands for Range control Calibration Control and Calibration Enable Calibration on off Calibration delay to fit the calibration pulse in the integrating window Trigger delay To adjust time from trigger to beam pulse Window width Tw To adjust integration window time Calibration Source To fine trim the calibration generator Fine Level gain adjust 1dB Window Balancing Cycle Hold time Output Zero Offset 2 15V 110mA 15V 85mA 3U x 4F i e Eurosize 100 x 160 mm 20mm wide 3U x 19 BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 23 Fax 33 450 426 643 User s manual SPECIFICATIONS Cont d Power supply and fuses See Annex III Delta Elektronika U Series linear power supply data sheet The mains voltage is factory set according to the label stuck on the front panel Please remove this label when you change the mains voltage selection Type SU 15 15 modular plug in 15V linear power supply Manufacturer Delta Elektronika 4300A Zierikzee The Netherlands Output voltage 15V 200 mA Mains voltage jumper selected 110 220 Vac 50 60 Hz tested at 90 Vac 50 Hz for 100 Vac Japanese mains voltage Mains voltage selector located under the power supply block Card size 3U x 10F i e Eurosize 100 x 160 mm 50mm wide Back panel connector The Power supply mains are wired to
16. Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 11 Fax 33 450 426 643 User s manual ARCHITECTURE Remote control DB9 OdB 6dB 6dB 12dB 20dB 20dB BEAM CHARGE MONITOR 50Q impedance match CHARGE AMPLIFIER 1dB Non invert Invert BCM Input p SMA Fine Gain Trigger input Buffer SMA 1001 105 1 I PC pC pc Calibration Delay Bm Attenuators Calibration ranges Calibration On 7 Off Calibration enable Signal View Adding window integrator Zero Offset z Output View Timing View Trigger delay EE with Tv Poo width Tw 2 Cycle time Output BCM Output SMA POWER SUPPLY 15V Voltage selector Mains BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 OPERATING PRINCIPLE Integrating Current Transformer Page 12 Beam Charge Monitor Integrate Hold Reset User s manual The Integrating Current Transformer ICT is a passive transformer designed to measure the charge in a very fast pulse with high accuracy It is capable of integrating a pulse with risetime in the order of picoseconds with no significant loss BEAM ig N turns Output 50 U out 509 ICT lt User connection The ICT is a capacitively shorted transformer coupled to a fast readout transformer in a common magnetic circuit The ICT delivers
17. a pulse with ca 20 ns rise time irrespective of the beam pulse rise time The ICT output pulse charge is in exact proportion to the beam pulse charge Integrating Current Transformer Beam pulse Output pulse The sensitivity of the Integrating Current Transformer is also called the transfer impedance It depends on the ICT model It is expressed in terms of the integral of the output pulse voltage as a function of the input pulse charge therefore in V s C or Q ICT Model Sensitivity Beam Charge to in 50 ohm BCM input Charge termination Ratio ICT XXX XXX 50 1 0 50 V s C 100 1 ICT XXX XXX 20 1 1 25 V s C 50 1 ICT XXX XXX 10 1 2 50 V s C 20 1 ICT XXX XXX 05 1 5 00 V s C 10 1 Fast Current Transformer 1 Measuring Bunch Intensity Beam Loss and Bunch Lifetime in LEP K B Unser Proceedings of the 2nd European Particle Accelerator Conference 1990 Vol 1 p 786 BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 13 Fax 33 450 426 643 User s manual The Fast Current Transformer FCT is a passive AC transformer with 1ns rise time and droop lower than 5 9o us Fast Current Transformers are made with 20 1 10 1 and 5 1 turns ratios into a 50Q load The FCT is specifically designed to observe bunched beams in particle accelerators Primary current FCT User connection SYS OO OOOO FCT can be used with B
18. age e g Europe U K one link must be soldered onto P500A in the location marked LINK FOR 230V In countries with 100Vac to 125Vac mains nominal voltage e g Japan U S A Canada two links must be soldered onto P500A in the location marked LINKS FOR 115V The 15Vdc output voltages have been factory adjusted they do not need to be readjusted according the the ACmains voltage When the effective AC mains voltage is below the power supply voltage setting e g applying 100 Vac to a power supply block set to 115V power derating occurs This has been taken into account at the design stage so no further readjustment is needed Le LE J A Mm 3 U 15 15 A EN a 2M EM Pun gt _ a a a ui E ial 3 a Step by step instructions Pull out of chassis the Delta Elektronika plug in power supply module or modules Remove the black plastic protection plate from the module solder side It is held by 2 hex nuts and 2 Philips screws Desolder the existing link jumper and remove it Place one or two links in the desired locations one jumper in LINK FOR 230V or two jumpers in LINKS FOR 115V Reassemble the power supply module s BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 2 Fax 33 450 426 643 Annex II Mains Voltage change Instructions Cont d When changing the AC mains voltage the chassis AC fuses may need to be changed
19. bration Generator The Calibration generator is enabled when the front panel switch Calibration is turned ON The Calibration Generator can also be enabled by applying a high level to the Calibration pin on the BD9 connector When the Calibration Generator is enabled it sends two calibrated pulses one positive the other negative a short time after it receives a trigger The delay between the trigger and the first calibration pulse can be adjusted with the front panel potentiometer Cal Delay The calibrated pulse is applied to the BCM input charge amplifier For correct calibration the beam current transformer and its cable must be connected to the BCM input The pulse charge splits in two parts One part is lost in the cable and the current transformer The remaining charge is amplified by the Charge Amplifier Cal Delay must be adjusted to make the calibrated pulse fall within either of the BCM integration windows The purpose of the pulse charge generator is not to provide accurate calibration The calibration pulse generator provides pulses calibrated to ca 2 The Calibration Enable command the calibration charge value from 1 pC 10 pC 100 pC up to 1 nC and the calibration pulse polarity are selected by TTL external command line applied to the DB9 connector at the rear of the BCM Beware this is charge as applied to the input of the Charge Amplifier It is not beam pulse charge equivale
20. charge Noise is 1 mVrms i e 1 pC beam charge Dynamic range is gt 800 Least sensitive configuration The least sensitive configuration without external signal attenuators is limited by the saturation of the circuits With a 50 1 turns ratio Integrating Current Transformer and the BCM set to minimum gain 40 dB on first stage and 6 dB on second stage then Full scale is 400 nC for 8 Volts output e Sensitivity is ca 20 mV per nC of beam charge Noise is 0 2 mV rms i e 10 pC beam charge Dynamic range is 40000 BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 Page 18 REMOTE RANGE and CALIBRATION SWITCHING All BCM functions can be controlled by 8 bits Apply TTL levels to these 8 bits via the rear panel DB9 connector An 8 bit DIP switch attached to a DB9 male connector is provided for user User s manual Beam Charge Monitor Integrate Hold Reset convenience to simulate the presence of the control system The BCM gain level signal polarity Calibration pulse charge and Calibration pulse polarity can be controlled Function Bit 7 Bit 6 Bit S Bit 4 Bit 3 Bit 2 BIt 1 Bit O DB9 connector pin ground on pin 9 5 1 6 2 7 3 8 4 Gain Total 2nd stage 1st stage 6dB 6dB 0dB H H H 12dB 6dB 6dB H H 18dB 6dB 12dB H L H 20dB 20dB OdB L H H 26dB 20dB 6dB
21. du JYAOI 403 suou2euuoj SI S1ASI AJIA WNOL104 IVA Of v20 ASI ZI U203 Sindino Paz VIOS OM rT Si sinst e ARIA WDILUS 9 v8 0 A0 vg ind no aug SI SINGI W LLUS 21900 PEN ECS g feo 4607104 9IJ GIT SEATER indu JyA 022 404 SuOn2euuoj GI SINSI AJIA WO1104 IVA 02e y fpo 5601104 v20 AGI 21 indino jong SI SINSI AGIA WOLLO AGI r12 jaia vr AGI 21 indno aug GI SINST MAFIA WOLLOd 0vd 109 101 AOT AOL BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 1 Fax 33 450 426 643 Annex II DELTA Elektronika U Series power supply units AC Mains Voltage change Instructions BCM RFC chassis is equipped with one or more U Series plug in power supply modules from Delta Elektronika Each module consists of a 3U high 8F wide front panel a 3Ux160mm base board reference P500A with a DIN H15 rear connector to plug in the chassis one or two 15Vdc power supply blocks 5U 15 15 The power supply module must be adjusted to the local AC mains voltage If itis not set to the local AC mains voltage the following adjustments need to be done The AC mains voltage adjustment is made by one of two links jumpers soldered onto the P500A base board In countries with 220Vac to 245Vac mains nominal volt
22. due to workmanship or materials and that the defect has not been caused by misuse neglect accident or abnormal conditions or operations Damages caused by ionizing radiations are specifically excluded from the warranty Bergoz Instrumentation and its local distributors shall not be responsible for any consequential incidental or special damages ASSISTANCE Assistance in installation use or calibration of Bergoz Instrumentation beam current monitors is available from Bergoz Instrumentation 01630 Saint Genis Pouilly France It is recommended to send a detailed description of the problem by fax SERVICE PROCEDURE Products requiring maintenance should be returned to Bergoz Instrumentation or its local distributor Bergoz Instrumentation will repair or replace any product under warranty at no charge The purchaser is only responsible for transportation charges For products in need of repair after the warranty period the customer must provide a purchase order before repairs can be initiated Bergoz Instrumentation can issue fixed price quotations for most repairs However depending on the damage it may be necessary to return the equipment to Bergoz Instrumentation to assess the cost of repair RETURN PROCEDURE All products returned for repair should include a detailed description of the defect or failure name and fax number of the user Contact Bergoz Instrumentation or your local distributor to determine where to return the product Retu
23. eeping high harmonics of the beam out of the cavity 21 Annex I Delta Elektronika U Series Linear Power Supply data sheet Annex II Delta Elektronika U Series Mains Voltage change Instructions BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 2 Fax 33 450 426 643 User s manual INITIAL INSPECTION It is recommended that the shipment be inspected immediately upon delivery If it is damaged in any way contact Bergoz Instrumentation or your local distributor The content of the shipment should be compared to the items listed on the invoice Any discrepancy should be notified to Bergoz Instrumentation or its local distributor immediately Unless promptly notified Bergoz Instrumentation will not be responsible for such discrepancies WARRANTY Bergoz Instrumentation warrants its beam current monitors to operate within specifications under normal use for a period of 12 months from the date of shipment Spares repairs and replacement parts are warranted for 90 days Products not manufactured by Bergoz Instrumentation are covered solely by the warranty of the original manufacturer In exercising this warranty Bergoz Instrumentation will repair or at its option replace any product returned to Bergoz Instrumentation or its local distributor within the warranty period provided that the warrantor s examination discloses that the product is defective
24. egrators gains is user adjustable with the Window Balancing potentiometer BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 15 Fax 33 450 426 643 User s manual Timing of the BCM IHR Trigger 30ns min Signal input Output signal D a Tc Cycle time a xw i SL N xS CSS S a a a a Eb ff XX CS XX NM S ape XS Tc Cycle time Y El Trigger delay Trigger delay Y XM US TO CSS A SUN SX X Me TP TT OT TT TAT TT AYN Tw Tw lt _ lt gt Baseline clampling X Subtracting window X MAMAWA WONO M UX Adding window X Trigger delay is adjustable from 350 ns minimum to 7 3 us maximum with front panel potentiometer Trig Delay In ex factory conditions it is set to 4 us The two integration windows are of equal width Tw Tw is adjustable with front panel potentiometer Tw The Hold time or Cycle duration Tc can be adjusted by potentiometer Cycle Hold Time It is located on the BCM board The cycle duration Te must not be made shorter than the sum of the trigger delay and the two integration windows For Cycle Hold time longer than can be adjusted with the potentiometer pls consult factory To locate on board potentiometers pls refer to chapter Settings in this manual BERGOZ Instrumentation Tel 33 450 426
25. es First measurement is with beam pulse Second measurement is without beam pulse to measure the zero offset The offset is deducted from the first measurement to obtain precise value This technique has two advantages A The value of the zero which depends on the balancing between the Adding and the Subtracting integrators is compensated Any drift of the zero due to temperature or ageing is eliminated B The mains frequency noise can be eliminated For 60 Hz mains the noise can be rejected very effectively by making the two measurements at a time interval equal to N x 16 66ms where N is an integer 1 2 3 For 50 Hz mains the time interval must be equal to N x 20 ms BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 20 Fax 33 450 426 643 User s manual SETTINGS Front panel potentiometers Window width Tw Determines the width Tw of the integration windows Allows an adjustment from 0 1 us up to gt 7 us Factory set as shown on the Factory Settings label affixed to the BCM module Trig delay Adjusts the delay from the trigger until the beginning of the first integration window Factory set as shown on the Factory Settings label affixed to the BCM module Cal Source Allows fine trimming of the calibration generator Please note Ex factory calibration will be lost when Cal Source potentiometer settings are modified On board
26. ex II for AC Mains Voltage change Instructions AnnexII Delta Elektronika U Series Mains Voltage change Instructions BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 1 Fax 33 450 426 643 User s manual SUMMARY Page WTA INSPEC T ON a e nade Een EHE QUA a me 2 bri spp ce m 2 ASSISTANCE use tnt n atenta ee else cea ne 2 SERVICE amp RETURN PROCEDURES nn ne ntieeannetiete 2 XOU JUST RECEIVED YOUR BCM neeite tee eb Rose 3 QUICK CHECK 253 9 2 59 ce inen ted tese D dei Odeon dl XE tasa 4 Front panel Re sande a oda nasa O tates eed cuuntams aaa E 4 Jumpers configuration for quick check sees 5 SEE BE des AEE ss cic on Re RS des 5 M avelorms eonia n ar eden a a a a RS I i EE 6 Your BCM does not behave as described sss 9 Testing all other BCM functions ani err patr OR Edere 9 GENBRAE DESCRIPLION Se aana e derisa ne ne 10 PHEDUSe SR ae du nep RM D ELA ns ESA 10 Syste components eo dote nd Ne tgo Venise Li den 10 ARCHITECTURE itp peto ee ene nes ut cer ebbe pa edis 11 OPERATINCHPRENCIPLE SR Se er hn oe ERE ae 12 Integrating Current TransforfBet sod aeo obe D rede tn ere 12 Past Current Fransf ormet sion mide oret nan cs 13 Cable Connections nc oi eene eno Dette ue ates esie fee Di eu 13 SIBI PROCESS INR LES tates eod leti tn b E REA A EN NR 14 Timing or the BC NI IRIR e Ste t et Son ne te 15 Beam Charge M
27. l is amplified by the Charge Amplifier The amplified signal is entered in the Bunch Signal Processor which integrates this signal every time the BCM is triggered by an external trigger This gives the possibility to measure selected pulses only not necessarily at a fixed repetition rate The signal processing is initiated by the external positive going trigger pulse A sequence timer creates three successive time windows a trigger delay a subtracting window and an adding window The pulse to be integrated must fall either in the adding window or the subtracting window Pulses falling in the first window or trigger delay are not integrated At the start of the first integration window the baseline is clamped to set the zero reference The two integration windows are used to integrate the input signal in two independent integrators trigger sequence offset error anes input baseline clamping integrator Lowpass Out ee 9 gated One integrator integrates the pulse signal The other integrates the input noise and baseline offset The pulse charge is obtained by summing the two integrators the first with negative sign the second with positive sign This particular combination of sampling window integrators gives a high degree of noise suppression All signals which do not correlate in frequency and in time with the window timing are rejected This is true for the amplifier noise and also for the general background The balance of int
28. nder BCM XTD The card extender allows access to the BCM E on board potentiometers while it is connected to the chassis thus to the readout and control system BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 25 Fax 33 450 426 643 User s manual INSTALLATION ON THE VACUUM CHAMBER The installation of an Integrating Current Transformer on the outside of a vacuum chamber requires some precautions a The electrical conductivity of the vacuum chamber must be interrupted in the vicinity of the ICT otherwise the wall current will flow thru the ICT aperture and cancel the beam current b The wall current must be diverted around the ICT thru a low impedance path c A fully enclosing shield must be installed over the ICT and vacuum chamber electrical break to avoid RF interference emission d The enclosing shield forms a cavity Cavity ringing at any of the beam harmonics must be avoided e The ICT must be protected from being heated beyond 80 C during vacuum chamber bake out f The higher harmonics of the beam should be prevented from escaping the vacuum chamber because 1 they are not seen by the ICT therefore unnecessary 2 they heat the ICT and any other conductive material inside the cavity 3 they cause quater wave mode ringing in the cavity Note The ICT does not need to be protected from external magnetic fields When it is exposed to external mag
29. netic fields it may saturate this causes the droop to increase up to a factor of 2 It has no effect on the ICT linearity Break in the vacuum chamber electrical conductivity If the vacuum chamber does not require bake out and the vacuum requirements are moderate a polymer gasket in between two flanges is adequate to assure the desired galvanic isolation If the vacuum chamber needs bake out the most commonly use solution is to braze a section of ceramic on the vacuum chamber tube This is called a ceramic gap The ceramic gap may be installed on centre or off centre of a short pipe section Flanges Ceramic gap BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 26 Fax 33 450 426 643 User s manual INSTALLATION ON THE VACUUM CHAMBER Cont d Vacuum chamber impedance The ceramic gap causes a disruption of the impedance seen by the beam This is particularly undesirable for leptons accelerators The most usual corrective measure consists of metallizing the inside of the ceramic gap Metallization has been used successfully on many electrons positrons accelerators Depending on the type of current transformer being installed AC or DC the resistance of the desirable metallization varies ICT current sensors tolerate a metallization with ca 1 2 without problem provided the wall current bypass is of very low impedance If a DC current transformer P
30. nt To obtain beam charge equivalents use the table hereafter Calibration pulse in pC 1 10 100 1 000 Equivalent beam pulse using the 500 input in pC With sensor ICT XXX XXX 50 1 Exactly 100 1 000 10 000 100 000 ICT XXX XXX 20 1 Exactly 40 400 4 000 40 000 ICT XXX XXX 10 1 Exactly 20 200 2 000 20 000 ICT XXX XXX 05 1 Exactly 10 100 1 000 10 000 BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Fax 33 450 426 643 Page 17 SENSITIVITY OF THE BCM IHR Full scales Beam Charge Monitor Integrate Hold Reset User s manual Gain Bits Full scale with Full scale with Full scale with Full scale with Gain setting ICT XXX 070 ICT XXX 070 ICT XXX 070 ICT XXX 070 2 1 0 50 1 20 1 10 1 05 1 6 dB H H H 400 nC 160 nC 80 nC 40 nC 12 dB H H L 200 nC 80 nC 40 nC 20 nC 18 dB H L H 100 nC 40 nC 20 nC 10 nC 20 dB L H H 80 nC 32 nC 16 nC 8 nC 26 dB L H L or H L L 40 nC 16 nC 8 nC 4 nC 32 dB L L H 20 nC 8 nC 4 nC 2 nC 40 dB L L L 8 nC 3 2 nC 1 6 nC 0 8 nC Bits L low H high Most sensitive configuration The most sensitive configuration is obtained when using the most sensitive beam current transformer With a 5 1 turns ratio Integrating Current Transformer and BCM set to maximum gain 20 dB on first stage and 20 dB on second stage then Full scale is 800 pC for 8V output e Sensitivity is ca 10 mV per pC of beam
31. onitor OUI ss cei cesses eres vite So Fere e be EM PR seed 16 On line calibration sienne ea eeu Seeker dores 16 SENSITIVITY OF THE BCE TAR eret tetoesetrask Pent ertt ca n PE ieecdoer teens 17 F ll Scales ee eee merde ect ese panes eae capt esed dat 17 Most sensitive Configuration iss oco oce items EU ru eee SPA VA ERR transe than 17 Least sensitive cODLIg IEAHOT ES cea itus e net Le ct S ex vents 17 REMOTE RANGE and CALIBRATION SWITCHING eene 18 MAKING PRECISE MEASUREMENTS WITH THE BCM 19 1a ig NL OPPETO dr 20 Front panel potentlGImelters eee eoi PR a Oed eo nate 20 On board potetiioItieteE Sepe saves In EUR SER PRORA SURE ERA E EU RR EP YER RUNS 20 SPECIFICATIONS eade hp t om edocet eden emu tu ict 22 Beam CharbeMOBIOEL e aite parie o AR denas eset toa teda ANE 22 Power Supply ANC BUSES ie oic ooo Ree M odes RE o d eta utis 23 CONNECTOR PINS ALLOGC AT ION nee ie resxeek essei eerta rss 23 DB9 male Remote Control connector ss 23 AGCBSSORIES dette Gots iat a e r AN tt A E ce iN Iebes 24 BEM Rer rc 24 Card extender coc odo adh lass eres ee detre ue 24 INSTALLATION ON THE VACUUM CHAMBER m 25 Break in the vacuum chamber electrical continuity 25 Vacuum chamber IMPEMANOE secutae potato Se NT ne den 26 Wall current by pass and RF shield 26 Thermal protection of the IC xo ne nn ee US Co e enu 26 K
32. petition rates from 1 kHz down to single pulses Continuous Averaging CA version for pulse repetition rates from 10 MHz down to 5 kHz This manual describes the Integrate Hold Reset IHR version Purpose The Integrate Hold Reset version measures the charge in a single selected pulse or macro pulse The Continuous Averaging version measures the average charge over time of repetitive selected pulses or macro pulses The Continuous Averaging version therefore measures current System components In a beam line or particle accelerator application the BCM detects the beam signal with a non destructive sensor Integrating Current Transformer ICT or Fast Current Transformer FCT Electronics are housed in a 3U high 19 wide RF shielded chassis which can hold BCM IHR E or BCM CA E modules in any mix Power Supply The BCM output is a voltage up to 7V proportional to the beam charge In the Integrate Hold Reset IHR version the voltage level it held up to 400ys then reset In the Continuous Averaging CA version the voltage level averages the successive input pulses with a long time constant BCM IHR E ICT or FCT Beam Sampling voltmeter 9 99999 Volts O To rear panel BCM Input To rear panel Trigger in From accelerator timming system Trigger to synchronize readout To adjust time delay before BCM output readout BERGOZ Instrumentation Beam Charge Monitor 01630
33. ransformer s turns ratio Example an ICT with 20 1 turns ratio i e ICT XXX 070 20 1 Zeavity 0 0625 Q BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 28 Fax 33 450 426 643 User s manual Keeping high harmonics of the beam out of the cavity Cont d The gap impedance is determined by its capacitance Zeap 1 C and w 27f For Zeavity Zgap C N2 2nfR Example ICT with 20 1 turns ratio f 3a3 1GHz R 25Q C 2 54 nF Different laboratories use different techniques to obtain the required gap capacitance A simple method consists in building a capacitor over the ceramic gap with layers of copper foil separated by layers of 100um thick kapton foil To obtain the desired capacitance value the overlapping area is obtained by S Cd E r o Where C is the capacitance F S is the area m d is the dielectric thickness m Er is the relative dielectric constant 3 5 for Kapton polyimid o is the dielectric constant 8 86 x 10 1 Example for C 2 54 nF and d 100ym and r 3 5 S 82 cm Last revised March 2008 DELTA ELEKTRONIKA BV Annex I P O BOX 27 4300 AA ZIERIKZEE NETHERLANDS TEL 31 1110 13656 FAX 31 1110 16919 U SERIES LINEAR MODULAR POWER SUPPLIES with potted split bobbin transformer providing very low leakage current and coupling capacitance 5U5 5 6V 1A 5U15 15 2x 12 15V 02A Accessories P500 E
34. rns must be notified by fax prior to shipment Return should be made prepaid Bergoz Instrumentation will not accept freight collect shipment Shipment should be made via Federal Express or United Parcel Service Within Europe the transportation service offered by the Post Offices EMS Chronopost Datapost etc can be used The delivery charges or customs clearance charges arising from the use of other carriers will be charged to the customer BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 3 Fax 33 450 426 643 User s manual YOU JUST RECEIVED YOUR BCM Check that the voltage corresponds to your mains voltage The power supply voltage is indicated on a plastic label located on the power supply module front panel If it does not correspond go to Annex II Delta Elektronika U Series linear power supply AC Mains Voltage change Instructions to adjust the power supply to your mains Then change the fuse and front panel and rear panel plastic labels accordingly QUICK CHECK You can check immediately that your BCM is working This is what you need e Beam Charge Monitor Integrate Hold Reset At least one BCM IHR E electronics module and one BCM RFC xx chassis DB9 Remote control key Integrating Current Transformer or Fast Current Transformer 4 channel oscilloscope with 100 MHz bandwidth or better Pulse generator capable of making the trigger pulse 230 n
35. s 22 4V 1 kHz You will also need short 4 8 ns BNC cables and SMA BNC adapters Verify that this manual corresponds to your BCM version The Modular Electronics Beam Charge Monitor Integrate Hold Reset BCM IHR version is the object of this manual It consist of at least one BCM IHR E electronics module and one BCM RFC xx 3U x 19 chassis This User s manual does not describe older BCM versions housed in an ABS plastic enclosure Those are described in other manuals e Beam Charge Monitor Integrate Hold Reset User s Manual version 1 x x e Beam Charge Monitor Continuous Averaging User s Manual version 1 x x These older versions consist of three modules in an ABS plastic enclosure marked e C A C for Charge Amplifier and Calibration e BSP CA or BSP IHR for Bunch Signal Processor e a Delta or Schroff power supply module These older configurations may include a Wideband Amplifier DB9 Remote control key A DB9 Remote control key is supplied with the Beam Charge Monitor It is a small auxiliary printed board attached to a DB9 connector An 8 bit switch is mounted on the printed board It must be plugged to the DB9 Remote control connector at the rear of the BCM to allow range switching and calibration range switching during tests Switches A0 A6 are active They correspond to Bits 0 6 of the remote control See Remote Range and Calibration Switching this manual Position 1 corresponds to bit HIGH Position
36. s AC input to the mains Apply a 50 ohm pulse gt 30ns gt 2 4V 1 kHz to Trigger in on rear panel Apply same pulse to oscilloscope input channel to trigger oscilloscope Set this oscilloscope input channel to high impedance Turn front panel Calibration switch ON Look at the signals with the oscilloscope all channel inputs must be high impedance All View points are on the front panel BNCs BERGOZ Instrumentation 01630 Saint Genis Pouilly France Tel 33 450 426 642 Page 6 Fax 33 450 426 643 Waveforms Beam Charge Monitor Integrate Hold Reset User s manual Reminder The front panel Calibration toggle switch should be ON The signals should look like this First Integration Window Trigger delay Second Integration Window 4 Aug 03 15 08 03 Signal View Shows internal calibration pulse Timing View Output View Trigger as applied to BCM Note Calibration pulse falls inside second window 41 264 ps Y 24 234 kHz 288 MS s p J 5 v oc At 2 2 V DC 3 2 V OC 4 02 94 4 5 V DC E AUTO BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 7 Fax 33 450 426 643 User s manual Waveforms Cont d Exercising the module Turn the BCM IHR E Cal Delay 20 turn front panel potentiometer It changes the delay between the trigger and the calibrated pulse The calibrated
37. s not anymore in ex factory conditions the front panel potentiometers settings may have been changed To re establish the ex factory settings Turn potentiometer Trig Delay located on BCM front panel until the Trigger delay equals 4 ys Turn potentiometer Tw located on BCM front panel until the integration window width equals 4 ys Turn potentiometer Cal Delay on BCM front panel until the calibrated pulse fits into an integrating window If those adjustments cannot be effected the instrument s time constants have probably been changed after delivery of the instrument Either restore original values according to the schematics or contact manufacturer for recalibration Testing all other BCM functions You can test all gain ranges inverse the signal polarity change the value of the calibration pulse and its polarity Toggle the switches of the DB9 Remote control key Place the switches AO to A6 according to Remote Range and Calibration Switching Switch position 1 corresponds to bit HIGH Position 0 to bit LOW Note that Switch A7 is not connected The Calibration Enable command can be activated with the BCM front panel switch BERGOZ Instrumentation Beam Charge Monitor 01630 Saint Genis Pouilly France Integrate Hold Reset Tel 33 450 426 642 Page 10 Fax 33 450 426 643 User s manual GENERAL DESCRIPTION BCM electronic modules E are made in two versions Integrate Hold Reset IHR version for pulse re
38. urocard for 2 U units Front panel 10 TE for P500 5U5B Models with screw terminals for wall and rail mounting including two 5 U 15 15 B clamps for 35 mm rail POWER SUPPLY 5 U 15 15 12 15V 0 2 A vo vw 220V nov e e 50 60Hz H 12 15V O2A a 4 kV rms l o test voltage DELTA Elektronika 20 The 5 U 15 15 has two isolated regulated outputs which are independently adjustable from 12 to 15 V also unequal voltage It can be used in 4 different configurations 12 15V 0 2A 12 15V 0 4A 24 30V 0 2A 12 15V 0 2A 1 Two Isolated outputs each 2 Outputs in parallel 3 Outputs in series 4 Outputs in series dual Input Transformer Test voltage Input Output Input Case Output Case Input to output Leakage current Coupling capacitance Insulation resistance Attenuation input spikes Safety Current limit Foldback characteristic Regulation Load 0 100 Line 10 Ripple noise Temp coeff per C Output impedance up to 100 kHz Recovery time 10 100 load step Operating ambient temp Dim and Weight 110 220 V AC 50 60 Hz For 120 240 V AC 50 60 Hz add X to model no 5U5 X etc Split bobbin potted according to VDE0551 and CEE15 4000 Vrms output case shorted 4000 Vrms output case shorted 500 Vrms Typical 5 micro amps Less than 60 pF 1000 MOnms Better than 100 dB IEC 950 EN 60950 5mV 5 mV at 4 W output 0 5 mV
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