IC Plus Electronics Unit YMCS0004 and YMCS0005 Operating and
Contents
1. DANFYSIK IC Plus Electronics Unit YMCS0004 and YMCS0005 Operating and Service Manual OXFORD DANFYSIK Unit 1 Ferry Mills Osney Mead Oxford OX2 OES UK Tel 44 0 1865 320 300 Fax 44 0 1865 320 301 http www oxford danfysik com customersupport oxford danfysik com IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 1 of 16 Table of Contents I KEY EEATURES csetera eoo gae doro aue atas deus 3 2 DETAILED SPECTEICA TIONS 2 ne ssraee pese a sese e Te sap inea 5 215 BREAMPLEIPFIER S22 e boten bedient bete tei bed add o 5 22 VOLTAGE TO FREQUENCY CONVERTER ccsssessesessesseceecceseecesceseeessccsseensccsssessecsesesseceescnseeeesenseeenes 6 23 HIGH VOLTAGE SUPPLY WITH LCD DISPLAY ccccceccsccsssecesceccssceccsssccsscecesseecesseccsssecessescssseceaaes 6 24 RS 232 COMMUNICATION PORT 2 5 DSERTINPUTS L OUTPUTS So e eri reete teu T dva RID AT S 2 6 POWER REQUIREMENTS oet pom ipio ppt es petto ei e ER TS 7 2 7 BLOCK DIAGRAM OF THE ELECTRONICS cccccccsseccssceccsscecesseccssceccsusccssseccssseccsusccssseccsseecesasecaaes 8 3 FRONT PANEL DESCRIPTION vssccicccssecsscasssessssestccctcasecceecessatescstesestecsscececscacsoveccosecesostecesvecdeseeee 9 3 1 LOCAL REMOTE OPERATION ADDRESS SELECTION cc ccseesscsessseeessseessesess2. 2 Voltage to Frequency Converter e Non linearity 0 1 typical 100Hz to 1 MHz e Temperature drift 150 ppm C typical at 100 kHz e Output impedance 50 Q short circuit protected 3 3 High Voltage Supply with LCD display LETHAL VOLTAGE PRESENT INSIDE DEVICE AND ON HIGH VOLTAGE OUTPUT PIN OR SOCKET WHEN OPERATED 1700 VOLTS MAXIMUM High Voltage supply DEVICE MUST NOT BE CONNECTED TO ITS POWER SUPPLY CONNECTOR BEFORE IT IS COMPLETELY MOUNTED OR CONNECTED TO THE IONIZATION CHAMBER INSTALLED ON THE EXPERIMENT Shielding ground warning In order to obtain the best signal shielding the body of the ionization chamber must always be electrically connected to the ground of the IC Plus Electronics device used This condition is normally achieved if a piggy back IC Plus Electronics device is attached to an IC Plus ionization chamber according to the mounting instructions described in Section 7 or if OXFORD DANFYSIK certified HV and Signal coaxial cables are used to connect a BNC SHV IC Plus Electronics device to an IC Plus ionization chamber e Adjustable from 0 to 1700 V in one volt steps e Maximum output current 1 2 mA short circuit protected e HF noise 1 mV peak to peak typical e LF noise 4 mV peak to peak typical e Temperature drift 20 ppm C typical e 3 1 2 digit miniature LCD for actual HV output value display IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002
3. Input and Zero Volts directly fitting the ionization chamber output lower electrode through rear panel which replaces the connectors plate of the stand alone ionization chamber or on the YMCS0005 connection is made via a standard BNC socket and low noise cable 5 2 High Voltage Supply YMCS0004 a special customized high withstand voltage insulated pin stand alone directly fits the ionization chamber polarisation upper electrode through rear panel which replaces the connectors plate of the stand alone ionization chamber or on the YMCS0005 connection is made via a SHV BNC socket and high voltage cable 5 3 Preamplifier output LEMO ERNO0 socket located at top left of IC Plus Electronics unit 5 4 Voltage to Frequency Converter output LEMO ERNOO socket located at top right of IC Plus Electronics unit 5 5 RS 232 Communication Port see section 5 for more details 9 pin male SUB D socket located at bottom right of IC Plus Electronics unit Pin2 RX from Computer Pin3 TX to Computer Pin7 RX from other unit Pin8 TX to other unit Pin is common ground 5 6 User Inputs amp Outputs and 24 VDC Power supply 9 pin female SUB D socket located at bottom left of the IC Plus Electronics unit Pin5 24 VDC supply input Pin9 0 common ground Pin4 User Output 1 Pin3 User Output 2 Pin2 User Output 3 Pinl DC positive supply 30 V max for open collector User Outputs supply only IC Plus Electronic
4. mode it does not stop communication with other units in remote mode IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 16 of 16 7 Direct Mounting of the Electronics onto the Chamber YMCS0004 only The electronics module Y MCS0004 is designed to be mounted directly onto the side of the ion chamber this is described here 1 Unscrew the eight screws to remove the connector plate on the side of the ionization chamber caution watch the O ring as shown on drawing ref YMCS 0001 sheet 3 part 1 2 Replace the connectors plate by the IC Plus Electronics gently insert the black connectors on the rear panel of the electronics into the inside pins of the ionization chamber then screw three H screws on each side of the plate as shown on drawing ref YMCS 0001 sheet 3 part 2 Store the two remaining screws in a safe place in case you have to remount the The IC Plus electronics module attached connectors plate directly to the IC Plus ion chamber The IC Plus electronics is attached to the chamber after removal of the side plate The side plate is left is position when used with stand alone electronics IC PLUS ELECTRONICS IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 17 of 16 8 Detecting an Abnormal Current Leak on IC Plus Signal Path An abnormal current leak
5. sub standard consumables 1 3 The defect has not arisen from any design specification component or material supplied by the customer 1 4 No part ofthe Equipment has been replaced with a part not supplied by OXFORD DANFYSIK or approved as suitable by it 1 5 Payment in full or all sums due in respect of the Equipment has been made 1 6 The customer shall be liable for any costs incurred by OXFORD DANFYSIK in responding to claims made in respect of erroneous results caused by operator error or incorrect application 1 7 Upon the customer making a claim under sub clause 1 it shall accord sufficient access to the Equipment to enable OXFORD DANFYSIK staff to inspect and adjust repair remove or replace the Equipment 1 8 OXFORD DANFYSIK will co operate with the customer in the assessment of reported defects by the final decision regarding the applicability of this guarantee shall rest with OXFORD DANFYSIK 2 OXFORD DANFYSIK shall decide if the Equipment should be repaired pursuant to sub clause 1 at its site or returned 3 The applicable guarantee period shall be 12 months after delivery save where the Equipment is installed and or commissioned by or under the supervision of OXFORD DANFYSIK in which case it shall be 12 months from the date of the installation certificate or 18 months after the date of delivery whichever is the earlier IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page
6. value of 262 144 000 e by enabling remote control of three digital User Inputs and three digital User Outputs e by resetting the unit to its default configuration parameters High Voltage 0 volt Selected Range 6 Input Offset 0 User Outputs 0 the unit is reset at power on Every unit has an address between 0 and 15 4 bit encoding selected by DIP switches on Front Panel with weights 8 4 2 and 1 from left to right Lower position of each switch is zero For example set the first and the third switches from left side on to select address 10 IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 12 of 16 6 3 Command list RSTad reset the unit CONFad VOLT x set HV to x value CONFad CURR RANG x set Input Range to x CONFad CURR OFFS x set Input Offset Percentage to x CONFad VOLT read HV value CONFad CURR RANG read Input Range CONFad CURR OFFS read Input Offset Percentage READad CURR read Input Current value Full Scale 262 144 000 SENSad STATx read User input x x 0 1 or 2 SOURad STATx y set User Output x x 0 1 or 2 toy y 0 or 1 SOURad STATx read User Output x x 0 1 or 2 ad unit address an integer value from 0 to 15 Values range for x parameter high voltage integer from 0 to 1700 DC volts range integer from 1 F S 1 nA to 6 F S 0 1 mA Input Offset integer from 0 to 99 User I Os integer from 0 to
7. 19 of 16 10 Software Licence Agreement and Limited Warranty 10 1 Licence Agreement As part of the sales package for the OXFORD DANFYSIK IC Plus Electronics unit the customer will receive from OXFORD DANFYSIK a licence to use the accompanying software subject to the following terms and conditions The sofware package may be used without time limit on one personal computer or workstation separate licence agreement and fee is required for each additional personal computer or workstation on which the package is used The software package may be duplicated or copied except for archive purposes or to replace defective media and each copy made must bear the copyright notices carried on the original The software package may not be transferred in any event to a third party unless written consent is obtained from OXFORD DANFYSIK This software package is protected under copyright law and OXFORD DANFYSIK reserves the right to terminate this licence upon any violation of these laws In the event of termination the customer will be required to return all copies of the software package to OXFORD DANFYSIK e Some parts of the software package are specially protected in order to be read or modified only by OXFORD DANFYSIK engineers Under no circumstances will OXFORD DANFYSIK be under obligation to disclose information relating to these parts of the software 10 2 Limited Warranty The standard software is fu
8. 2 IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 13 of 16 Examples CONF3 VOLT 1500 set HV to 1500 V on address 3 unit CONFI2 CURR OFFS 56 set Input Offset to 56 on address 12 unit READ0 CURR will return Input Current value of address 0 unit Note The program waits for strings ending with a special character Line Feed ASCII code 10 This character must be transmitted by the host computer When the program returns a value it also sends this character after the value Every time this special character is acknowledged the program sends a single character ASCII code 6 to the host computer 6 4 Syntax rules Upper and lower case characters are accepted 6 5 Connecting with a host Computer This unit can be connected to a RS232 port of a host computer Only three wires are needed See section 7 5 for connections description If the host computer is a PC pins 4 and 8 must be tied together on the 9 pin SUB D connector of the PC side of the cable The following protocol is supported by the OXFORD DANFYSIK unit baud rate 9600 data format 8 bits ASCII data and 1 stop bit parity none CTS RTS signals are disabled The DEMO program provided by OXFORD DANFYSIK on the floppy disc supplied with the IC Plus Electronics unit runs under Windows on IBM PCs or compatible It is a demonstration of communication with the unit IC Plus Electronics Unit Version 6 OPERATIN
9. G AND SERVICE MANUAL Date 8 Nov 2002 Page 14 of 16 6 6 IC Plus Demo installation with Windows 1 Insert the floppy disk in drive A 2 Click on the Start button and select Run 3 Type a setup and click on the OK button 4 The default directory is C DEMO but you may change it Then click on the Ok button 5 After a while you will get the following message Setup has installed the software successfully and added the application s to the Program Manager Click on the OK button 6 The demo is ready to run you only have to click twice on the IC Plus icon 6 7 Network configuration These units are designed to operate in a network made of several IC Plus Electronics units and or Cyberstar X1000 pulse processing units Up to 16 units of both types can be linked together using only one RS232 port of the host computer When a unit is linked to the network its address must not be already in use by any of the other units The wiring for a network including two units connected to a PC is detailed hereafter PC connector cable 1 Unit A connector cable 2 Unit B connector 2 RX 3 TX 0 3 TX essc 2 RX 0 5 ground 5 ground 5 ground IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 15 of 16 When the unit B is disconnected pins 2 and 3 of the connector located at the end of cable 2 must be grounded with a 1000 Ohm resistor When a unit is in local
10. ICS ONTO THE CHAMBER YMCS0004 jc Saxe 17 7 DETECTING AN ABNORMAL CURRENT LEAK ON IC PLUS SIGNAL PATH 18 8 WARRANTY 19 9 SOFTWARE LICENCE AGREEMENT AND LIMITED 20 9 JEICENCEAGREEMENT tro de dai edv eu a eer ed eg ECHTE US 20 92 JSIMITED WARRANTY nme ho itd emt ertet Teese dd EMCI v ted doe ci demo Tae BAS deck adde ua 20 IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 2 of 16 1 Introduction Dear Customer Thank you for your purchase of this equipment we hope that you will find it easy to set up and use If you have questions comments or suggested improvements please do not hesitate to contact us We will be glad to hear from you Good luck with your experimental program Initial Setup On receiving this equipment you should have the following items e Electronics module e Signal and High Voltage Cables if you have purchased the stand alone module YMCS0004 e Mains power supply e This manual e Floppy disc with demo communication software Please read this manual before connecting the electronics module IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 3 of 16 2 Key Features The IC Plus X ray beam intensity monitors are a ran
11. Page 6 of 16 3 4 RS 232 Communication Port e Transfer rate 9600 Baud e Enables daisy chain connection of up to 16 modules e Enables remote configuration measurement retrieval and user I Os control 3 5 User Inputs amp Outputs e Three 50 KO impedance inputs default logic value 1 if input NC suitable for contact reading must be referred to 0 V CLOSE logic level zero logic level voltage reading 0 V for logic 0 3 V min for logic 1 e Three PNP open collector outputs 500 mA one lead connected to ground Common supply of 30 VDC max to be injected from outside the module see section 4 6 for details 3 6 Power requirements 24 Volts DC nom 23 V min 27 V max 150 mA nominal current This is supplied by a mains adapter provided which requires a mains supply voltage of 90 V 260 V AC 50 60 Hz IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 7 of 16 3 7 Block Diagram of the Electronics Then Voltage INPUT Precision Output SIGNAL Current Voltage to Integrator Frequency Output Frequency Converter 28 bit A D Delta Sigma Converter Micro Controller RS232 Port Low Noise User s HIGH High 0 VOLTAGE OUTPUT Front Panel Keys pP y and Displavs PSU IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 8 of 16 4 Front Panel Description 4 1 Local Remote Operation Addr
12. eseessesessseserseseseees 9 3 2 HIGH VOLTAGE SETTING amp DISPLAY cccccescsccsessssessscsesssessscssesscsessscessssseessesssssesssesesssenessesenssens 3 3 INPUT RANGE SELECTION amp DISPLAY 3 4 INPUT OFFSET ADJUSTMENT amp DISPLAY 4 DESCRIPTION OF THE CONNECTORS ccscccsssccesscccsssccesscccssscccssscccssccesscccesscccsssccessceeses 10 4T TINPULGCURRENT 5 eroe D BUNTE ET eS 10 42 HIGH VOLTAGE SUPPLY oiei EI ORE NU NES va d D eod E deri e 10 4 3 PREAMPLIFIER OUTPUT 5 recede rh eee ride ide bee e dE ett 10 4 4 VOLTAGE TO FREQUENCY CONVERTER OUTPUT 10 45 RS 232 COMMUNICATION dtd ded Pao P e PO abd eee eb al 10 4 6 USER INPUTS amp OUTPUTS 24 VDC POWER SUPPLY cccccccceccsssecescecessceccseeecueecsseeeseseeeesseeeeses 10 5 REMOTE CONTROL SOFTWARE sccsscsssscssscssssssccsescesccsescessecesceseecenceesssessesscsessecessesseseesens 12 Ov CHNTRODUGCTION riae RR SER EHE D I eda oret AO eio eR PLM 12 9 25 SDESGRIPTION ederet satin de n a c Eo PO EE an aet E 12 5 3 7 COMMANDS LIST eere e ht t E CR C PU Pec n REP cae led sive coves 5 4 SYNTAX RULES 5 5 CONNECTING WITH A HOST COMPUTER 5 6 IC PLUS DEMO INSTALLATION WITH WINDOWS nennen nennen 15 5 7 NETWORK i enean esae candace eee i eae aae ie eae ia cases 15 6 DIRECT MOUNTING OF THE ELECTRON
13. ess selection High Voltage Input Range and Input Offset values are displayed on front panel whatever mode is selected e Local operation enables High Voltage Input Range and Input Offset values selection from front panel e Remote operation selectable only from front panel Local Remote switch see sections 5 5 and 6 for details 4 2 High Voltage setting amp display Select High Voltage on the front panel High Voltage Input switch Use the Up Down switch to change value The output Voltage is displayed in volts 43 Input Range selection amp display Select Input on the front panel High Voltage Input switch and Range on the Range Offset switch Use the Up Down switch to change range Range number from 1 to 6 is displayed on the LED 7 segment display 44 Input Offset adjustment amp display Enables positive frequency shift on the 0 1 MHz output Select Input on the front panel High Voltage Input switch and Offset on the Range Offset switch Use the Up Down switch to change value Possible values from 0 to 99 95 Input offset is displayed in percentage of the Full Scale of the selected Input range on the lower 3 1 2 LCD IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 9 of 16 5 Description of the Connectors 5 1 Input Current YMCS0004 a pair of special customized ultra low leakage insulated pins make connections for
14. ge of ionization chambers that offer premium performance at very low cost Four models are available the IC Plus 50 the IC Plus 150 and the IC Plus 300 which vary only in the length of the body and electrodes and a very short version the IC Plus 10 which is similar in style but has one valve on the base of the unit The IC Plus ELECTRONICS module is a front end compact module designed to offer maximum low current measurement stability minimise noise due to ground loops and permit remote control and measurements through a RS232 communication port In the case of part number YMCS0004 it mounts directly on the detector body except for the IC Plus 10 or for the YMCS0005 it connects to the chamber through high quality coaxial cables only OXFORD DANFYSIK certified cables should be used otherwise noise and stability specifications could not be guaranteed It features current measurement ability from 100 fA to 0 1 mA in 6 ranges e Range 1 0 1 pA tol nA e Range2 1 pA to 10 nA e Range3 10 pA to 0 1 uA e Range4 0 1 nA to 1 pA e Range5 1 nA to 10 pA e Range 6 10 nA to O ImA with 2 analogue outputs e voltage output from 0 to 10 V e frequency output from to 0 to 1 MHz It can operate either in LOCAL or REMOTE mode selected on the front panel e In LOCAL mode the user can select from the front panel the 3 measurement configuration parameters polarisation voltage current range and input offset very easily by using an UP DOWN sw
15. itch and 3 parameter selection switches In REMOTE mode the address of the device has to be selected from 0 to 15 using the 4 front panel address micro switches IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 4 of 16 3 Detailed Specifications 3 1 Preamplifier Input impedance 1000 GQ 1 pF Input is protected against High Voltage breakdown through ionization chamber electrodes e Typical input bias current 20 fA below 0 C 100 fA at 25 C 300 fA at 40 C e Typical input offset current temperature drift 6 fA C between 0 and 30 C e frequency 0 1 to 10 Hz current input noise 10 fA peak to peak max on range 1 highest gain range e Input offset voltage average drift 1 uV C typical 5 C max e term offset stability 15 month e Integration capacitor 100 pF 0 5 temperature coefficient 25 ppm C typical e Integration time Range 1 1 second Range 2 100 ms Range 3 5 ms Range 4 1 ms Range 5 100 us Range 6 10 us e Full scale output voltage 10 volts e Output impedance 50 short circuit protected A 50 2 coaxial cable up to 150 fi 45 m long should be used to connect the voltage output to a high input impedance remote voltmeter or acquisition system any input impedance lower than 1 MQ will induce a gain error IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 5 of 16 3
16. lly tested and under normal use is guaranteed to be free of bugs and defects on IC Plus Electronics units The insurance is not valid for special software adaptations on non standard electronics units In this case OXFORD DANFYSIK agrees to correct at its own expense during a one year warranty period any defect arising during the use of the modified software package In no event will OXFORD DANFYSIK be liable for any direct or indirect incidental or consequential damages arising from a software failure IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 20 of 16
17. s Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 10 of 16 Pin8 User Input 1 Pin7 User Input 2 Pin6 User Input 3 caution when User Inputs are not connected internal pull up resistors set their default digital values to 1 User s I Os connector Pin 1 External DC supply from external equipment Output Micro Switching Controller Transistors Pin2 3 4 OUTPUTS to switched devices Pin 9 External DC supply return IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 11 of 16 6 Remote Control Software 6 1 Introduction The IC Plus Electronics units can be remotely controlled by a host computer PC or workstation through a serial link RS 232 A network of up to 16 units can be built requiring only one serial port on the host computer The communication protocol is a subset of the SCPI Standard Commands for Programmable Instruments language 6 2 Description The IC Plus Electronics unit holds a C programmable sub miniature controller The program is factory stored in its FLASH Eprom When Remote operation is selected on front panel this program recognizes commands coming from a host computer and is therefore able to drive the unit e controlling its three configuration parameters High Voltage Selected Range Input Offset Percentage e by enabling Input Current value retrieval it is encoded on 28 data bits refered to a Full Scale
18. through Signal path means that when set to highest sensitivity the IC Plus Electronics working as a nano ampere measurement device will show a very high current offset with no beam through the ionization chamber whatever the high voltage polarization value to check this just choose Range 1 1 nA full scale on the IC Plus Electronics unit connected to the ionization chamber analog and digital outputs mean values should be equal or lower than 20 mV on Analog out 0 10V 2 kHz on Frequency out 0 1MHz 500000 as Current read out value displayed on the IC Plus Electronics demo software window when Remote mode is used IC Plus Electronics Unit Version 6 OPERATING AND SERVICE MANUAL Date 8 Nov 2002 Page 18 of 16 9 Warranty 1 OXFORD DANFYSIK warrants that the Equipment shall be free from defects by reason of faulty design workmanship or materials and that if within the guarantee period set out in sub clause 3 the Equipment proves defective for such reason OXFORD DANFYSIK shall adjust repair or replace it as it sees fit free of charge provided that 1 1 The Equipment has been used solely for the purpose for which OXFORD DANFYSIK understands it is to be used and in accordance with the operating instructions 1 2 The defect has not been caused by fire accident misuse neglect incorrect installation by the customer its customers agents or servants or unauthorised repair or maintenance or by use of
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