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1. Micro error codes rs vv Input already started stopped Preset already exceeded Input not started stopped 006400 Parameter was rounded for decimal numbers 128 No sample data available 17 ORTEC ASPEC 927 User Manual 931025C 1114 6 3 Dollar Response Records SHOW and STEP commands respond with a single dollar response record followed immediately by a percent response record All valid dollar response records for each command are listed in the command dictionary The following list provides the general form of each dollar response record for the MCB API In this list lower case letters represent numeric values The letters ccc always represent an 8 bit unsigned checksum of all characters on the record up to but not including the checksum characters and CR represents the ASCII carriage return character SAxxxccc lt CR gt xxx is a Single 8 bit unsigned number SCxxxxxccc lt CR gt is a single 16 bit unsigned number SDxxxxxyyyyyccc lt CR gt xxxxx and yyyyy are 16 bit unsigned numbers SExxxxxccc CR is a single 16 bit alarm mask SFssss lt CR gt ssss is a variable length ASCII character sequence no checksum is sent with this record SGxXxXXXXXXXXXCCC lt CR gt XXXXXXXXXX is a Single 32 bit unsigned number SIT lt CR gt True response to a SHOW command no checksum SIF lt CR gt False response to a SHOW command no checksum Jxxxxxyyyyy ccc CR Response to S
2. c rae WO cR rr den WS ROG Vrat dig 12 6 COMMANDS AND RESPONSES 16 bI Command FORMAL ARUM ERE do 16 Bee E RE ETT T T TETTE T IET COLIT DUCI 16 6 3 Dollar Response Records s durae 94 54640064548 A SERA AVNET 18 6 4 MCB Commands sed se REC CLOUT RAGS 18 APPENDIX A ZDT ZERO DEAD TIME MODE 30 1 Off Uncorrected Spectrum Only 31 2 NORM CORR ZDT and Uncorrected Spectra Stored 31 CORR ERR ZDT and Error Spectra Stored 32 AG Choosing d ZDT Mode X He ORE ME 33 4 1 The NORM CORR Diagnostic 33 ORTEC ASPEC 927 User Manual 931025C 1114 SAFETY INSTRUCTIONS AND SYMBOLS This manual contains up to three levels of safety instructions that must be observed in order to avoid personal injury and or damage to equipment or other property These are DANGER Indicates a hazard that could result in death or serious bodily harm if the safety instruction is not observed WARNING Indicates a hazard that could result in bodily harm if the safety instruction is not observed CAUT
3. Numeric parameters are unsigned integer numbers that follow the command header separated by one or more spaces Specific commands require multiple parameters separated by commas that specify numeric quantities related to the operation of the MCB such as live time or conversion gain The command SET WINDOW 0 8192 has two parameters 0 and 8192 which set the window of interest to start at channel 0 and continue for 8192 channels Some parameters are optional and are delimited by square brackets in the command prototype line to distinguish them from mandatory parameters e g SET WINDOW start length Commands with optional parameters can be sent to the MCB without the optional parameters in which case the instrument behavior will be explained in the command description 6 2 Error Codes On each completion of the command the MCB returns a macro error code and micro error code The macro error code represents the general class of error with O meaning no error and the micro error code represents the 16 931025C 1114 ORTEC ASPEC 927 User Manual sub class of error with O meaning no error In case of error condition you can use the MIOGetLastError DLL interface or GetErrMajor GetErrMinor ActiveX control interface Macro error codes sues vv Power up just occurred Battery backed data lost 129 Command syntax error 132 Invalid Command For macro code 129 syntax error or 131 execution error the following apply
4. Software selectable coarse gain Software selectable fine gain Gain stabilizer te er Zero stabilizer 12 931025C 1114 ORTEC ASPEC 927 User Manual W et ERIS 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Meaning PHA mode functions available MCS mode functions available 918 style list mode functions available Sample mode functions available Digital Offset e g 920 Software selectable analog offset HV power supply Enhanced HV SET HV 5 5 HV POL SHOW HV ACT Software selectable HV range ENA NAI DIS NAI Auto PZ START PZ AUTO Software selectable manual PZ SET SHOW PZ Battery backed real time clock SHOW SHOW DATE TIME START Sample changer support SET SHOW OUTPUT SHOW INPUT One button acquisition ENA DIS SHOW SPEC MOVE Nomadic likely to move between opens Local app data SET DATA APP SHOW DATA APP Software retrievable serial number SHOW SNUM Power management commands Battery status support SHOW STAT BATT Software selectable AMP polarity SET SHOW GAIN POLAR Support for flattop optimization ENA DIS OPTI Stoppable AutoPZ STOP PZ AUTO Network support e g DSPEC Multi drop serial support e g MicroNOMAD Software selectable DPM address SET DPM ADDR Multiple devices e g 919 Software selectable ADC gate mode SET GATE Software downloadabl
5. C16382107 lt CR gt Maximum count was found in channel 16382 C16383108 lt CR gt Maximum count was found in channel 16383 SHOW_PEAK_PRESET Reports the value of the ROI peak preset See SET PEAK PRESET for information about the ROI peak preset Responses G0000000000075 CR Peak preset disabled G0000000001076 lt CR gt Peak preset set to 1 count G2147483646120 lt CR gt Peak preset set to 2147483646 counts G2147483647121 lt CR gt Peak preset set to 2147483647 counts SHOW_RATE_ZDT Not used included for backward compatibility SHOW ROI Used in conjunction with the SHOW NEXT command SHOW ROI reports the first continuous group of channels that have the ROI flag set The response is of the form Dsssssnnnnnccc lt CR gt where sssss represents an integer number that is the number of the first channel of the first group of channels that all have their ROI bit set and nnnnn represents an integer number that is the number of channels in the group The SHOW_NEXT command is used to report the next group of channels that all have their ROI bit set Responses D0100000050078 lt CR gt First ROI group starts at channel 1000 and is 50 channels long D0215000150086 lt CR gt First ROI group starts at channel 2150 and is 150 channels long D0000000000072 lt CR gt No ROI groups to report 27 ORTEC ASPEC 927 User Manual 931025C 1114 SHOW ROI MDA Reports the start channel and number of channels used in the MDA
6. CR Conversion gain set to default 16384 SET GAIN CONVERSION 512 CR Conversion gain set to 512 channels SET GAIN CONVERSION 1024 CR Conversion gain set to 1024 channels SET GAIN CONVERSION 2048 lt CR gt Conversion gain set to 2048 channels SET GAIN CONVERSION 4096 CR Conversion gain set to 4096 channels SET GAIN CONVERSION 8192 lt CR gt Conversion gain set to 8192 channels SET GAIN CONVERSION 16384 CR Conversion gain set to 16384 channels SET GATE ANTICOINCIDENT 20 Causes the ASPEC 927 to use the ADC gate input signal in anticoincident mode See also SET GATE OFF SET GATE COINCIDENT and SHOW GATE 931025C 1114 ORTEC ASPEC 927 User Manual SET GATE COINCIDENT Causes the ASPEC 927 to use the ADC gate input signal in coincident mode See also SET GATE OFF SET GATE ANTICOINCIDENT and SHOW GATE SET GATE OFF Causes the ASPEC 927 to ignore the state of the ADC gate input signal See also SET COINCIDENT SET GATE ANTICOINCIDENT and SHOW GATE SET INTEGRAL PRESET count Sets the ROI integral preset to the specified count During data acquisition when the sum of the counts contained in the channels that have the ROI flag set reaches the integral preset count the preset is complete and the acquisition is stopped The actual number of counts in the ROI integral may exceed the preset value by up to 512 counts due to the pipelined architecture of the ASPEC 927 Setting an integral preset to 0 counts disables
7. You can either manually numbers for your detectors change the ID Number and Description as described in the next subsection or you can click the Renumber New button to renumber only the new instruments Fig 4 New Instruments Must Have a Non NOTE We strongly recommend not using the Renumber All Zero ID Number button n addition we strongly recommend not renumbering MCBs that belong to other users as this could affect the interaction between their MCBs and their ORTEC software for instance if they control their MCBs with JOB files e g the JOB file command SET DETECTOR 5 or use the GammavVision or ISOTOPIC spectroscopy applications See also the NOTE FOR MULTIPLE USERS ON A NETWORK in the next section 2 2 4 2 CUSTOMIZING ID NUMBERS AND DESCRIPTIONS If you wish you can change the instrument ID Numbers and Descriptions by double clicking an instrument entry in the Configure Instruments dialog This will open the Change Description or ID dialog Fig 5 Itshows the physical MCB location read only and allows you to change the ID Number and Description Change Description or ID Instrument Input System 1 USER PC T Cancel Description IDM 200 Fig 5 Change MCB Number or Description Make the desired changes and click Close Any changes you have made to an ID number or description will then be written back to the corresponding MCB NOTE FOR MULTIPLE USERS ON A NETWORK There are two wa
8. the standard mode ZDT Off is the preferred mode only the uncorrected spectrum is collected and stored in the spectrum file But if the counting rate varies significantly during the measurement time the standard mode will not yield the proper dead time corrected counting rate This can be most easily understood by noting that the uncorrected mode compensates for dead time losses by extendingthe real countingtime Hence a sample containing both a short lived high activity isotope and a long lifetime lower activity isotope will experience very high dead time losses during the first few seconds of the measurement as the short lifetime isotope decays rapidly This high dead time will cause the counting time to be extended after the short lived isotope has decayed to zero activity and the system will count the low activity isotope for the extra time Consequently the average activity of the short lived isotope will be underestimated If you anticipate significantly varying counting rates during the time taken to acquire the spectrum the CORR ERR ZDT mode should be used The ERR mode corrects for dead time losses over minuscule time intervals by adding counts to the ZDT spectrum in proportion to the instantaneous ratio of real time to live time Thus the dead time correction can correctly track rapidly changing counting rates The CORR ERR mode should be used whenever the counting rate might change significantly during the measurement ti
9. 1 in progress Bits 10 14 Unused Bit 15 MSB Reserved SHOW TRUE Reports the contents of the true time counter in units of 20 ms 50 ticks s See also CLEAR COUNTERS and SET TRUE Responses G0000000000075 CR True time reported as O ticks G0000000001076 CR True time reported as 1 tick 20 ms G4294967295132 CR True time reported as 4294967295 ticks over 23000 days 28 931025C 1114 ORTEC ASPEC 927 User Manual SHOW TRUE PRESET Reports the current true time preset in units of 20 ms 50 ticks s See also CLEAR PRESETS and SET TRUE PRESET Responses G0000000000075 lt CR gt True time preset reported as disabled G0000000001076 lt CR gt True time preset reported as 1 tick G4294967295132 lt CR gt True time preset reported as 4294967295 ticks SHOW_ULD Returns the value of the ULD in channels as a SC record SHOW_UNCERTAINTY Returns the current value of the uncertainty for the peak in the uncertainty preset See also SET_UNCERTAINTY Responses UNCE 0000000000008 5 Uncertainty of the peak is 8 5 SHOW_UNCERTAINTY_PRESET Returns the current uncertainty preset setting See also SET UNCERTAINTY PRESET Responses UNCE_PRES 000000000000000 No preset UNCE_PRES 0000000000008 5 Preset set to 8 5 SHOW_VERSION Reports the ASPEC 927 firmware version number in the form Fmmmm vvv lt CR gt where mmmm is a 4 character model designator and vvv is a 3 character version designator Example Responses
10. 2 Software and Hardware Installation 2 2 2 1 Step 1 Install the CONNECTIONS Driver Update 3 2 2 2 Step 2 Install MAESTRO CIRCA HER LP RR T ORE 3 2 2 3 Step 3 Connect the ASPEC 927 to the Computer 4 2 2 4 Step 4 Run MCB Configuration to Communicate With Your MCBs 4 2 2 4 1 Configuring a New 5 2 2 4 2 Customizing ID Numbers and 5 5 2 3 Attaching More Than One ASPEC 927 6 2 4 Connecting and Disconnecting from the 9 6 3 ASPEC 927 MCB PROPERTIES IN MAESTRO 6 Oily NOG rrr 6 7 o rcu APR 7 RSS 8 aa MDAT T 9 RURBLESROBI 10 4 1 MAESTRO Does Not Connect with the 5 927 10 EPE 11 5 1 Performance of Each MCB 11 5 2 Indicators and Controls acum pub 11 DUO 12 5 4 Electrical and Mechanical s 127 3 9 3 99 3 Ark dC e ORC ORD Re de RR fe d 12 5 5 Feature Mask Bits m d
11. ASPEC 927s or other ORTEC MCBs to your system or when you move an instrument from one USB port to another 2 4 Connecting to and Disconnecting from the PC The USB connection allows you to connect ASPEC 927s to and disconnect them from a USB port without shutting down the computer or USB hub Note that if MAESTRO is running when you disconnect the ASPEC 927 you will see a detector not responding message on the status line at the bottom of the MAESTRO window When you reconnect the ASPEC 927 to its USB port the same port to which it was attached when MCB Configuration was last run you will have to reselect it from the detector droplist on the Toolbar 3 ASPEC 927 MCB PROPERTIES IN MAESTRO This section discusses the hardware setup dialog you will see within MAESTRO and all other ORTEC CONNECTIONS software e g GammaVision ISOTOPIC when you click Acquire MCB Properties The ASPEC 927 is completely software controlled the MCB Properties dialog contains all of the instrument controls including ADC setup parameters and acquisition presets Just move from tab to tab and set your hardware parameters then click Close Note that as you enter characters in the data entry fields the characters will be underlined until you move to another field or until 5 seconds have lapsed since the last keyboard input During the time the entry is underlined no other program or computer on the network can modify this value 3 1 ADC Lt 7 Thi
12. Explorable Stabilizer LIST GAIN ADJU LIST ZERO ADJU Programmable input impedance MCS Advanced shaping time feature has no CUSP digiDART DSPEC jr 2 0 DSPEC Pro Selectable HV rise time SET SHOW LIST HV RISE SBS 60 Explorable ADC GATE settings LIST GATE SET GATE n Monitor command support SHOW MONI MAX LABEL VALUE SMART 1 Detector support SHOW SMART DET SHOW SNUM DET SHOW HV RECO Nuclide report SET SHOW COEF SET SHOW ROI NUCL Interactive Display Features Such as Nuclide Report Advanced Stored Spectra SH SPEC COUNT SET SHOW SPEC ID MOVE SET SHOW VIEW in MCBs with Dual Port Memory or printer port interfaces LIST VIEW in all MCBs Connected to MCB via RS 232 slow port No SET HV POSI SET HV NEGA ENA NAI and DIS N Low Frequency Rejecter ENA DIS SHOW Resolution Enhancer ENA DIS SH RENHANCER SET SHOW RETABLE idx val SET MODE RELIST for Resolution Enhancer List Mode Readable Sample mode time per channel SH TIME SAMPLE Adjustable Sample mode time per channel SET LIST TIME SAMPLE List Mode data streamed and formatted as in digiBASE Supports ETP mode ENA DIS SHOW ETP List Mode data streamed and formatted as in DSPEC Pro SET SHOW LIST PZ using floating point microseconds Risetime flattop width and cusp not changeable from property page HV not user changeable from property page requires Bit 12 Coarse and fine gain not user changeable from property page PZ and flattop tilt not use
13. S FDSPR 002 CR Model ASPEC 927 firmware Version 2 reported SHOW WINDOW Reports the start channel and number of channels in the window of interest in the form SDxxxxxyyyyyccc lt CR gt where xxxxx is the start channel 0 16383 and yyyyy is the number of channels 1 16384 See SET_ WINDOW for more information about the window of interest Example Responses D0000016384094 lt CR gt Window of interest reported as starting at channel and continuing for 16384 channels D0000008192092 lt CR gt Window of interest reported as starting at channel O and continuing for 8192 channels D0819208192112 CR Window of interest reported as starting at channel 8192 and continuing for 8192 channels SHOW ZDT Reports if ZDT mode is enabled Responses SIF ZDT mode disabled SIT ZDT mode enabled 29 ORTEC ASPEC 927 User Manual 931025C 1114 START seg mask Starts the acquisition of spectral data The optional segment mask is provided for compatibility with other MCBs and may be any value from 0 to 65535 but is ignored by the ASPEC 927 STEP OUTPUT Causes a pulse to be output on the Change Sample output port The level of the Change Sample output is changed then returned to the level present when the STEP OUTPUT command was received The duration of the intermediate level varies but is never less than 2 ps Use the SET OUTPUT HIGH or SET OUTPUT LOW commands to establish an initial output level Responses C00000087 CR Init
14. include a value for output num it must be zero output num is provided for compatibility with other ORTEC instruments See also STEP OUTPUT SET OUTPUT LOW output num Sets the Change Sample output to the low level The ASPEC 927 has only one sample changer BNC therefore if you include a value for output num it must be zero output num is provided for compatibility with other ORTEC instruments See also STEP OUTPUT SET PEAK PRESET count Sets the ROI peak preset to the specified count During data acquisition when the contents of any channel of a device that has the ROI flag set reaches the peak preset count the preset is complete and the acquisition is stopped The actual number of counts in the ROI peak may exceed the preset value by a small number of counts due to the pipelined architecture of the ASPEC 927 Setting a peak preset to O counts disables the preset The peak preset may be set to from 0 disabled to 2147483647 counts See also CLEAR PRESETS and SHOW PEAK PRESET SET ROI start chan number of chans Sets the ROI flags for the specified channels This command can be used multiple times to set ROI flags without affecting previously set flags ROI flags specify channels within a device that are considered for ROI integral and ROI peak presets SET ROI MDA start numchans PeakNumber Sets the region to use to compute the gross counts in the MDA calculation PeakNumber is an optional parameter assumed O if not present that spec
15. or SET OUTPUT LOW command Responses C00000087 CR Change Sample output currently low C00001088 CR Change Sample output currently high SHOW OVERFLOW PRESET Reports the state of the overflow preset Responses SIT lt CR gt Overflow preset enabled SIF lt CR gt Overflow preset disabled 26 931025C 1114 ORTEC ASPEC 927 User Manual SHOW PEAK This command returns the contents of the ROI channel with the largest number of counts An ROI channel is a channel that has the ROI flag set The maximum possible value is 2147483647 which is the maximum number of counts that can be stored in a 31 bit channel Responses G0000000000075 lt CR gt Maximum count in an ROI channel is zero or no ROI channels were found G0000000001076 lt CR gt Maximum count in an ROI channel is 1 G2147483646120 lt CR gt Maximum count in an ROI channel is 2147483646 G2147483647121 lt CR gt Maximum count in an ROI channel is 2147483647 SHOW_PEAK_CHANNEL This command returns the number of the ROI channel with the largest number of counts An ROI channel is a channel that has the ROI flag set The lowest number ROI channel with the largest count is reported if more that one channel contains the largest number of counts Channel 16383 is the highest numbered channel in any device Responses C00000087 lt CR gt Maximum count was found in channel 0 or no ROI channels were found C00001088 lt CR gt Maximum count was found in channel 1
16. preset calculation Example Response D0700000050ccc Calculation is performed on channels 7000 7049 SHOW ROI UNCERTAINTY Reports the start channel and number of channels used in the uncertainty preset calculation See also SET ROI UNCERTAINTY Response D0700000050ccc Calculation is performed on channels 7000 7049 SHOW SEGMENT Returns the current segment number Always 1 for the ASPEC 927 SHOW SNUM Responds with a SF record indicating the serial number of the ASPEC 927 Response 5 100 Serial number 100 SHOW STATUS Returns system status information in the following format SMIININNNNNttttttttttaaaaahhhhhccc lt CR gt where represents the live time as returned by the SHOW LIVE command tttttttttt represents the true time for the current device as returned by the SHOW TRUE command aaaaa represents the active device mask as returned by the SHOW ACTIVE DEVICES command and hhhhh represents the hardware status which is an ASCII representation of a 16 bit decimal number with the following bit definitions Bit O LSB Bias supply polarity O positive 1 negative Bit 1 Bias supply overload O overload 1 normal Bit 2 High voltage enabled O disabled 1 enabled Bit 3 Unused Bit 4 Amplifier PZ d since initialization O normal 1 needs PZ ing Bit 5 Optimization since initialization O normal 1 needed Bits 6 7 Unused Bit 8 Amplifier automatic PZ 1 Auto PZ in progress O normal Bit 9 Optimization O normal
17. the ASPEC 927 to normal operation if in zero dead time ZDT mode See ENABLE ZDT ENABLE OVERFLOW PRESET Enables the overflow preset Channels that receive a count when they contain 2147483647 counts the maximum number of counts will stop the acquisition if the overflow preset is enabled The channel that caused the preset to complete will contain 2147483647 counts See also DISABLE OVERFLOW PRESET and SHOW OVERFLOW PRESET commands ENABLE TRIGGER Enables the Sample Ready connector Acquisition will then start when an external trigger occurs on the Sample Ready connector or when the TRIGGER command is issued See also TRIGGER DISABLE TRIGGER SHOW TRIGGER SET TRIGGER POLARITY and SHOW TRIGGER POLARITY ENABLE ZDT Sets the ASPEC 927 to ZDT mode See SET MODE ZDT for information on selecting the ZDT mode INITIALIZE Returns the ASPEC 927 including flash to the factory default settings LIST DISPLAY Not used by the ASPEC 927 included for backward compatibility 19 ORTEC ASPEC 927 User Manual 931025C 1114 LIST GAIN CONV Lists legal conversion gain settings Response GAIN CONV 512 1024 2048 4096 8192 16384 LIST MODE ZDT Reports the legal ZDT mode settings Each item in the list can be selected by sending the SET MODE ZDT command with a mode number The mode number is implied by the location of the mode in the list For example the first item in the list had a mode number of 0 To select the first item send SET MOD
18. 27 Section 2 describes the setup and installation of the ASPEC 927 Section 3 lists the ASPEC 927 specifications Section 4 tells how to use MAESTRO to adjust the hardware settings Section 5 contains a troubleshooting list The appendices are intended for the user who wishes to write custom software to control the ASPEC 927 Ron Jenkins R W Gould and Dale Gedcke Quantitative X Ray Spectrometry New York Marcel Dekker Inc 1981 266 267 Patent number 6 327 549 ORTEC ASPEC 927 User Manual 931025C 1114 2 SOFTWARE AND HARDWARE INSTALLATION Installing the ASPEC 927 and the MAESTRO 32 MCA Emulation Software takes just a few easy steps 1 Cable the spectroscopy system together 2 Install the accompanying CONNECTIONS Driver Update Kit and MAESTRO software selecting the USB based instruments hardware option 3 Power on the ASPEC 927 and connect it to the USB port on the PC 4 Runthe MCB Configuration program to build the list of available MCBs 2 1 Cable the System The standard cabling of an ASPEC 927 in an HPGe detector system is shown in Fig 1 If the detector has a TRP preamplifier PLUS model all connections shown should be made Resistive feedback preamplifiers have no INHIBIT output so the INHIBIT connection is left open INHIBIT PLUS systems only To front panel PREAMP POWER P z INPUTS HIGH oy OLTAGE LIME RF I HHIBIT Ou
19. 4 SHOW DEVICE Reports which inputs are acquiring data The 16 bit answer is transmitted as a SC response record which represents a binary mask of bits each representing one of the two inputs A 1 bit in the mask indicates that the corresponding segment is counting Responses C00000087 CR Neither input is acquiring data C00001088 CR Only input 1 is acquiring data C00002089 lt CR gt Only input 2 is acquiring data C00003090 lt CR gt Both inputs 1 and 2 are acquiring data SHOW_FEATURES Responds with four 32 bit masks indicating which features are present in the MCB See Appendix for a complete description of each bit in the mask Example Response FEATURES 02285062207 02014941185 00000000000 00000000000 SHOW_GAIN_CONVERSION This command returns the conversion gain Responses C00512095 CR Conversion gain reported as 512 channels C01024094 CR Conversion gain reported as 1024 channels C02048101 CR Conversion gain reported as 2048 channels C04096106 CR Conversion gain reported as 4096 channels C08192107 CR Conversion gain reported as 8192 channels C16384109 CR Conversion gain reported as 16384 channels SHOW GATE Reports the current mode of operation of the ADC gate input See also SET GATE OFF SET GATE COINCIDENT and SET GATE ANTICOINCIDENT Responses SFOFF lt CR gt Reports the ADC gate is off or ignored SFCOI lt CR gt Reports the ADC gate is in coincident mode SFANT lt CR
20. ASPEC 927 Dual Multichannel Buffer User Manual Printed in U S A ORTEC Part No 931025 1114 Manual Revision C Advanced Measurement Technology Inc WARRANTY AMT warrants that the items will be delivered free from defects in material or workmanship AMT makes no other warranties express or implied and specifically NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AMT s exclusive liability is limited to repairing or replacing at AMT s option items found by AMT to be defective in workmanship or materials within one year from the date of delivery AMT s liability on any claim of any kind including negligence loss or damages arising out of connected with or from the performance or breach thereof or from the manufacture sale delivery resale repair or use of any item or services covered by this agreement or purchase order shall in no case exceed the price allocable to the item or service furnished or any part thereof that gives rise to the claim In the event AMT fails to manufacture or deliver items called for in this agreement or purchase order AMT s exclusive liability and buyer s exclusive remedy shall be release of the buyer from the obligation to pay the purchase price In no event shall AMT be liable for special or consequential damages Quality Control Before being approved for shipment each AMT instrument must pass a stringent set of quality control tests designed to expose any flaws in
21. Counter The auxiliary counters count TTL rising edges applied on pins on the rear panel IN OUT 9 pin D connector The counters connected to pins 1 0 2 Aux1 on the 9 pin D are associated with MCB 1 and pins 5 AuxO and 6 Aux1 are associated with MCB 2 Fig 8 ASPEC 927 Status Tab ORTEC ASPEC 927 User Manual 931025C 1114 The auxiliary counters start counting rising edges when a spectrum is started stop when a spectrum is stopped and are cleared when a spectrum is cleared The most common application for the counters is the support of Neutron Detection electronics but the counters can count pulses for any source that generates TTL pulses at frequencies 10MHz Custom cables are required to make use of the counter inputs Pin 9 on the 9 pin D connector is the ground reference for all 4 inputs 3 4 Presets Figure 9 showsthe Presets tab MDA presets are shown Properties for MCB 129 Input 1 on a separate tab The presets can only be set on an MCB that is not Time sec Liners acquiring data during acquisition the preset field as Preset in backgrounds are gray indicating that they are inactive AN You can use any or all of the presets at one time To om disable a preset enter a value of zero If you disable all e of the presets data acquisition will continue until He eats Tie manually stopped M Overflow The values of all presets for th
22. DIS SHO PUR SET VERI WIDT REJ Alpha style HV power SHOW HV CURRENT Software readable vacuum SHOW VACUUM Acquisition alarms ENA DIS SHO ALARM Hardware acquisition trigger ENA DIS SHO TRIG Ordinal numbers for shaping times SET SHAP O SET SHAP 1 Explorable gain ranges LIST VERI GAIN FINE COAR CONV Routable inputs SET SHOW INPUT ROUTE External dwell support ENA DIS DWELL EXT Selectable SUM or REPLACE MCS modes ENA DIS SUM External start of pass support ENA DIS SHO START EXT Explorable with MCS list commands LIST SOURCE LIST LLSCA LIST ULSCA Device supports the MDA preset Software selectable ADC type MatchMaker Has ability to daisy chain MCBs DART Zero Dead Time functions available DSPEC series ASPEC 927 DSPEC Plus style Insight triggering LIST SET TRIG SAMP Multiple inputs per connection for example OCTETE Plus Hardware count rate meter SH CRM Multiple ZDT modes SET SHOW LIST MODE ZDT Multi nuclide MDA preset MCS Replace then Sum Mode SET RPLSUM Programmable external dwell voltage capability 931025C 1114 ORTEC ASPEC 927 User Manual Bit 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 Meaning NO Peak Preset feature M CA and OASIS Programmable pulser OASIS Programmable Vacuum HV interlock OASIS Programmable Current HV interlock OASIS
23. E ZDTO The second item has a mode number of 1 and so on Response MODE ZDT CORR CORR ERR Mode 0 stores the normal and corrected spectra Mode 1 stores the corrected and the error spectra RESET No function in the ASPEC 927 This command has been included for backward compatibility SET DATA start chans value If the optional start and chans parameters are included in this command the range of channels specified by start and chans is loaded with value If start and chans are not specified sets all channels of spectral data in the window of interest see SET WINDOW command to the specified value ROI flags are not affected SET DATA APPLICATION string1 string2 This is used to store information in the ASPEC 927 internal memory that can be used by other programs such as sample descriptions and energy calibrations The Unified MCB Interface UMCBI structure and ORTEC CONNECTIONS make use of this feature String1 the data identifier 32 bytes maximum string2 the data 128 bytes maximum SET DEVICE Not used included for backward compatibility SET GAIN CONVERSION chans Sets the conversion gain The conversion gain defines the number of channels within the device that will used for spectral data This has the effect of altering the resolution of the ADC from 14 bits conversion gain 16384 to 9 bits conversion gain 512 for the device See also SHOW GAIN CONVERSION Legal Commands SET GAIN CONVERSION O
24. HOW CONFIGURATION command IMXXXXXXXXXX CCc CR Response to SHOW STATUS command SNxxxyyyzzzccc lt CR gt Xxx yyy and zzz are 8 bit unsigned numbers 6 4 MCB Commands This section lists each command with a description of its operation The descriptions include a list of any error codes that may result As described in the two preceding sections the usual response is a macro error code of 0 and a micro error code of 0 no errors Though syntax and communication error responses may result from any command in practice these error responses rarely occur on systems with reliable communication hardware running debugged software The commands are listed in alphabetical order each starting with a command prototype line Uppercase letters numeric digits blank space and special symbols such as the underscore and comma 13 in the prototype line are literal text to be sent to the MCB exactly as they appear Lowercase letters in the prototype line represent numeric values as described in the accompanying text they should not be sent literally to the MCB but should be replaced by an appropriate numeric value In this section the term CR represents the ASCII carriage return character decimal value 13 and the character represents the ASCII underscore character decimal value 95 CLEAR The channels of spectral data in the window of interest see SET WINDOW command are set to zero The live time and true time counters are also se
25. ION Indicates a hazard that could result in property damage if the safety instruction is not observed In addition the following symbols may appear on the product DANGER Hazardous voltage N ATTENTION Consult the manual in all cases where this symbol is marked in order to determine the nature of the potential hazards and any actions that must be taken to avoid them Protective earth ground terminal Please read all safety instructions carefully and make sure you understand them fully before attempting to use this product CLEANING INSTRUCTIONS To clean the instrument exterior Disconnect the instrument from the power source Remove loose dust on the outside of the instrument with a lint free cloth Remove remaining dirt with a lint free cloth dampened in a general purpose detergent and water solution Do not use abrasive cleaners CAUTION To prevent moisture inside of the instrument during external cleaning use only enough liquid to dampen the cloth or applicator Allow the instrument to dry completely before reconnecting it to the power source 1 INTRODUCTION 1 1 General The ORTEC ASPEC 927 Dual Multichannel Buffer MCB offers two independent MCBs in a single width NIM module for economical high performance data acquisition in nuclear spectroscopy applications The ASPEC 927 connects to your PC via a high speed USB 2 0 interface and includes two independent 16K ADCs and 512 kb of
26. The spectroscopy software provides some protection for users if the ZDT LTC mode is inadvertently selected In this case the software ignores the ZDT spectrum and presumes you intended to use the uncorrected spectrum in a constant counting rate application To Summarize Use the ZDT Off mode when the counting rate is expected to be constant during the time taken to acquire the spectrum Use the ZDT CORR ERR mode when the counting rate is expected to change or might change significantly during the time required to acquire the spectrum 33 ORTEC ASPEC 927 User Manual 931025C 1114 A 4 2 34 Avoid using the CORR mode because the spectroscopy software will default to analyzing the LTC spectrum and will ignore the ZDT spectrum More Information Visit our website or contact your ORTEC representative for more detailed information Application note AN56 Loss Free Counting with Uncertainty Analysis Using ORTEC s Innovative Zero Dead Time Technique http www ortec online com pdf an56 pdf General gamma spectroscopy technical papers http www ortec online com papers reprints htm General Acquisition presets 8 9 11 ADC CNC LETT 12 AU 6 Anticoincidence 6 Ba 12 BUSY AD ER 12 Coincidence cusa esae ax eR a AC RD 6 Dead time 8 11 Installation eo ed Ke 2 Integral Nonlineari
27. UIPUTS 52 Eal E a PC via 1 high speed CAA USB ell ee i Pur Be dM ous 4 SHUTDOWN 7 BS lt 250 255 Sen E Xu o E 659 672 ga Power Supply Amp Rear Panel Rear Panel Rear Panel Fig 1 HPGe System Cabling 2 2 Software and Hardware Installation Installingthe ASPEC 927 and the accompanying CoNNECTIONS and MAESTRO software takes just four easy steps Note that you must have Administrator level access in Windows to install ORTEC software 931025C 1114 ORTEC ASPEC 927 User Manual For easiest installation do not connect the ASPEC 927 to your computer until MAESTRO has been installed 1 Install the accompanying CONNECTIONS Driver Update Kit P N 797230 selecting the USB based instruments family on the install wizard s Instrument Setup page 2 Install the accompanying MAESTRO MCA Emulation Software A65 BW 3 Connect the ASPEC 927 to the USB port on the computer 4 Runthe MCB Configuration program to build a list of available ORTEC MCBs 2 2 1 Step 1 Install the CONNECTIONS Driver Update The first step is to install the CONNECTIONS Driver Update Kit P N 797230 according to its instruction sheet This software must be installed before MAESTRO can be installed The update kit s instructions tell how to install CONNECTIONS enable disable the drivers for your ORTEC MCB s and share ORTEC instruments across a network On the Instrum
28. by the conversion gain specified The window of interest is always set to the maximum size after a SET DEVICE command or a SET SEGMENT command SHOW ACTIVE Returns a 1 if the ASPEC 927 is active i e acquiring spectral data or O if it is not active Responses C00000087 CR Not active C00001088 CR Active SHOW CONFIGURATION Returns a record that indicates the hardware configuration of the MCB The record contains information about the number of segments in an MCB device always 1 for the ASPEC 927 and the current conversion gain for each segment The record is organized as follows J1638400001aaaaa00000 65 zeros here for total of 75 2 00000 where aaaaa represents the conversion gain for the one and only segment in the currently selected device and ccc represents the record checksum See the section on response records in this chapter for more information about response records and checksums SHOW CONFIGURATION MASK Returns two masks the first of which can be anded with data from the MCB to clear the ROI bit from the data When the second mask value is anded with data from the MCB the data bits are removed and only the ROI bit remains Response CONF MASK 02147483647 02147483648 SHOW DATA APPLICATION string If string matches string1 in a previous SET DATA APPLICATION command then string2 from that command is returned The response is a SF record 23 ORTEC ASPEC 927 User Manual 931025C 111
29. e currently selected MCB are shown on the Status Sidebar These values do not change as new values are entered on the Presets tab the changes take place only when you start the next acquisition or Close the Properties dialog Fig 9 ASPEC 927 Presets Tab When more than one preset is enabled set to a non zero value the first condition met during the acquisition causes the MCB to stop This can be useful when you are analyzing samples of widely varying activity and do not know the general activity before counting For example the Live Time preset can be set so that sufficient counts can be obtained for proper calculation of the activity in the sample with the least activity But if the sample contains a large amount of this or another nuclide the dead time could be high resulting in a long counting time for the sample If you set the ROI Peak preset in addition to the Live Time preset the low level samples will be counted to the desired fixed live time while the very active samples will be counted for the ROI peak count In this circumstance the ROI Peak preset can be viewed as a safety valve Enter the Real Time and Live Time presets in units of seconds and fractions of a second These values are stored internally with a resolution of 20 milliseconds ms since the MCB clock increments by 20 ms Real time means elapsed time or clock time Live time refers to the amount of time that the MCB is available to accept another pulse i e is n
30. e firmware Time histogramming functions available e g 9308 Software selectable lower level discriminator Software selectable upper level discriminator MCS mode SCA input available MCS mode positive TTL input available MCS mode fast negative NIM input available MCS mode discriminator input available Software switchable MCS mode discriminator edge Software programmable MCS mode discriminator level 13 ORTEC ASPEC 927 User Manual 931025C 1114 Bit 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 14 Meaning Software programmable SCA upper and lower thresholds Software selectable MCS mode input sources Uncertainty statistical preset SET UNCERT PRES Features vary by input SHOW FEATURES depends on device segment multi input MCBs only Software selectable HV shutdown mode SET SHOW VERI_ SHUT Software selectable shaping time constants SET SHAP Explorable shaping time constants SHOW CONFIG SHAP Advanced shaping time SET SHAP RISE SET SHAPE FLAT etc Software selectable ENA DIS SHO AUTO SET SHO VERI SHOW STATUS command supported returns SM record Overflow preset ENA DIS SHO OVER PRES Software enabled MicroNOMAD style audio clicker ENA DIS CLICK Software readable thermistor SHOW Floating point fine gain SET SHO VERI LIST GAIN FINE Software enabled pileup rejector ENA
31. e preset in units of 20 ms 50 ticks s See also CLEAR PRESETS and SET LIVE PRESET Responses G0000000000075 lt CR gt Live time preset reported as disabled G0000000001076 lt CR gt Live time preset reported as 1 tick G4294967295132 lt CR gt Live time preset reported as 4294967295 ticks SHOW_LLD Shows the lower level discriminator setting See also SET_LLD Responses C00050092 The LLD is 50 SHOW MDA PeakNumber Reports current MDA for the MDA Preset selected by PeakNumber PeakNumber is assumed to be O if not supplied Example response MDA 0000000000010 7 SHOW MARK Not used by the ASPEC 927 included for backward compatibility SHOW MDA COEF Reports the current settings for coeffficients a b and c used for the MDA calculation See SET MDA COEF Example Responses MDA COEF 000000000002 71 000000000000000 00000021 700001 Coefficient a 2 71 b 0 and c 21 7 SHOW PRESET PeakNumber Reports MDA preset PeakNumber If PeakNumber is omitted O is assumed Example Response MDA PRES 0000000000025 7 25 ORTEC ASPEC 927 User Manual 931025C 1114 SHOW MODE Reports the current mode of operation PHA List or Sample InSight Virtual Oscilloscope See also SET MODE PHA and SET MODE SAMPLE Responses SFPHA CR PHA mode SFLIS CR List mode SFSAM lt CR gt Sample mode InSight SHOW_MODE_ZDT Reports the current ZDT mode See SET MODE ZDT Responses MODE_ZDT 00000 Mode 0 sel
32. e time correction circuits Accepts TTL signal signal must occur prior to peak detect Z 1 BNC connector SAMPLE CHANGE IN 9 D connector 2 1 Input for ADC 1 is pin 1 Input for ADC 2 is pin 5 Ground is pin 9 SAMPLE CHANGE OUT 9 D connector Z 1 Output for ADC 1 is pin 3 Output for ADC 2 is pin 7 Ground is pin 9 USB High speed USB 480 Mbps interface 5 4 Electrical and Mechanical POWER REQUIRED 6 V 250 mA 12 V 165 mA 12 V 165 WEIGHT Net 0 9 kg 2 Shipping 2 25 kg 5 Ib DIMENSIONS NIM standard single wide 3 43 x 22 13 cm 1 35 x 8 714 in front panel per DOE ER 0457T Battery Backup The memory in the ASPEC 927 has battery backup to maintain data when power is turned off The battery used is a lithium battery with a nominal voltage of 3 V P N 739480 To replace the battery Remove the left side plate viewed from the front panel Locate battery on the lower left corner of the ASPEC 927 board Remove the old battery from the holder and slide a new one in It may be necessary to bend the battery holder down after removing the old battery to get good contact with the new battery 5 5 Feature Mask Bits The following table describes the feature bits from the SHOW FEATURES command discussed on page 24 If the feature is supported in the ASPEC 927 the bit is set to 1 if the feature is not supported the bit is O w et Meaning Software selectable conversion gain
33. ected normal and corrected MODE_ZDT 00001 Mode 1 selected error and corrected SHOW MONI LABEL num Returns with an ASCII string label designation for the state of health parameter for num SHOW MONI MAX Returns with the number of state of health values available for viewing SHOW MONI VALUE num Returns with an ASCII representation of the value for the state of health parameter SHOW NEXT Used in conjunction with the SHOW ROI command SHOW NEXT reports the next continuous group of channels that have the ROI flag set The response is of the form Dsssssnnnnnccc CR where sssss represents an integer number that is the number of the first channel of the next group of channels that all have their ROI bit set and nnnnn represents an integer number that is the number of channels in the group If no more channels have their ROI bit set SHOW NEXT returns a first channel of 0 and a number of channels of 0 The SHOW ROI command is used to report the first group of channels that all have their ROI bit set Example Responses D0100000050078 CR Next ROI group starts at channel 1000 and is 50 channels long D0215000150086 CR Next ROI group starts at channel 2150 and is 150 channels long D0000000000072 CR No other ROI groups to report SHOW OUTPUT 0 Reports the status of the Change Sample output port The output port status is reported as a 16 bit number that is O or 1 depending on the level last set by a SET OUTPUT HIGH
34. ent Families page be sure to mark the USB based instruments checkbox as shown in Fig 2 Otherwise the ASPEC 927 will not be able to communicate with the computer and MAESTRO software Atthe end of installation you will be directed to restart the computer If you also have other types of MCBs attached to this computer refer to the installation instructions in the corresponding hardware manuals Note that you can install device drivers for other types of instruments later as described in the CONNECTIONS Driver Update Kit instructions Instrument Setup El Instrument Families Please check all items in this US5B based instrumentz list that are connected to or E installed in this computer Dual Port Memory plug in cards 154 slot Click Done when you are TRUMP PCI cards finished DART ar any other printer port based device L microBASE Iter Description Miniature MCA mini CA 155 Check this entry if vau have any ORTEC USB diaib amp RT A8232 based instrument except DSFEC 5232 DiaiBASE E Local Instrument list No instruments found Allow other computers to use this computer s instruments Fig 2 Choose USB based instruments 2 2 2 Step 2 Install MAESTRO Install MAESTRO according to the instructions in its User Manual ORTEC ASPEC 927 User Manual 931025C 1114 2 2 3 Step 3 Connect the ASPEC 927 to the Computer 1 Wi
35. gt Reports the ADC gate is in anticoincident mode SHOW_INPUT 0 Reports the state of the Sample Ready input Responses C00000087 lt CR gt Sample Ready input is low C00001088 lt CR gt Sample Ready input is high SHOW_INTEGRAL start_chan number_of_chans 24 Reports the sum of the specified group of spectral data channels If start_chan and number_of_chans is not provided SHOW_INTEGRAL reports the sum of all channels in the currently selected window that have their ROI flag set Responses G0000000000075 lt CR gt Integral reported as 0 G4294967294131 lt CR gt Integral reported as 4294967294 G4294967295132 lt CR gt Integral reported as greater than or equal to 4294967295 maximum reportable value 931025C 1114 ORTEC ASPEC 927 User Manual SHOW INTEGRAL PRESET Reports the current ROI integral preset value For more information about the ROI integral preset see SET INTEGRAL PRESET See also SHOW INTEGRAL Responses G0000000000075 CR Integral preset reported as O G4294967295132 lt CR gt Integral reported as 4294967295 SHOW_LIVE Reports the contents of the live time counter in units of 20 ms 50 ticks s See also CLEAR COUNTERS and SET LIVE Responses G0000000000075 lt CR gt Live time reported as O ticks G0000000001076 CR Live time reported as 1 tick 20 ms G4294967295132 CR Live time reported as 4294967295 ticks over 23000 days SHOW LIVE PRESET Reports the current live tim
36. h spectra to the other type and lt Shift F3 gt switches only the compare spectrum This allows you to make all types of comparisons Conversion Gain Sets the maximum channel number in the spectrum If set to 16384 the energy scale will be divided into 16384 channels The conversion gain is entered in powers of 2 e g 8192 4096 2048 1024 512 The up down arrow buttons step through the valid settings for the ASPEC 927 Upper and Lower Level Discriminators These settings establish the lower and higher level cutoff for ADC conversions by channel number 3 2 About This tab Fig 7 displays hardware and firmware Properties for MCB 129 Input 1 information about the currently selected ASPEC 927 as well as the data Acquisition Start Time and Sample description In addition the Access field shows whether the MCB is currently locked with a password see the password discussion in the MAESTRO user Sample manual Read Write indicates that the MCB is unlocked Read Only means it is locked Acquisition Start Time Access Unknown Read rite MCB 123 Input 1 Firmware Revision Serial Number Acquisition Made 0927 001 2 4 Fig 7 ASPEC 927 About Tab 3 3 Status Ls Each ASPEC 927 MCB has two auxiliary counters that Properties for MCB 129 Input 1 are usefulfor counting external events synchronized to acquisitions This tab Fig 8 allows you to monitor the counters Aux0 Counter Aux
37. he PC then manually run the MCB Configuration program by clicking on Start Programs MAESTRO 32 MCB Configuration See the accompanying MCB Properties Manual for detailed instructions on this procedure For further assistance contact your local ORTEC representative or our Global Service Center 10 931025C 1114 ORTEC ASPEC 927 User Manual 5 SPECIFICATIONS 5 1 Performance of Each MCB ADC Successive approximation type with sliding scale linearization Max Resolution Software selectable as 16384 8192 4096 2048 1024 and 512 Dead Time per Event 2 us including memory transfer Integral Nonlinearity lt 0 025 over the top 9996 of the dynamic range Differential Nonlinearity lt 1 over the top 99 of the dynamic range Gain Instability lt 50 ppm C Dead Time Correction Software selectable Gedcke Hale extended live time correction method or the ZDT zero dead time correction See Section A for more information Data Memory 512 channels of battery backed up memory per MCB 2 1 counts per channel over 2 billion USB Interface High speed USB 2 0 480 Mbps maximum interface to PC via supplied 3 m cable LLD Computer controlled from 0 to 100 full scale ULD Computer controlled from 0 to 100 full scale Presets Real Time Live Time Multiples of 20 ms Region of Interest Peak count Integral count Data Overflow Terminates acquisition when any channel exceeds 2 1 Peak Uncertainty Stops acqui
38. ial and final level on Change Sample was low C00001088 lt CR gt Initial and final level on Change Sample was high STOP seg mask Stops the acquisition of spectral data The optional segment mask is provided for compatibility with other MCBs and may be any value from 0 to 65535 but is ignored TRIGGER Starts data acquisition if the trigger has been enabled ENABLE_TRIGGER APPENDIX A ZDT ZERO DEAD TIME MODE An extended live time clock increases the collection time real time of the acquisition to correct for input pulse train losses incurred during acquisition due to system dead time This corrected time value known as the live time is then used to determine the net peak count rates necessary to determine nuclide activities As an example consider the case where the spectrometry amplifier and ADC are 60 dead during the acquisition the elapsed real time will be Real Time Ex ui 1 0 60 Live Time x 10096 10096 96 Dead Time If the N counts in the gamma ray peak in the spectrum are divided by the elapsed live time the resulting counting rate N Live Time is now corrected for dead time losses The standard deviation in that counting rate is yN Live Time Unfortunately extending the counting time to make up for losses due to system busy results in an incorrect result if the gamma ray flux is changing as a function of time If an isotope with a very short half life is placed in front of the detector the spectro
39. ifies which of up to 20 0 19 MDA Presets to change SET ROI UNCERTAINTY start chans Sets the region to be used for the uncertainty preset calculation See also SHOW UNCERTAINTY SET SEGMENT Not used included for backward compatibility 22 931025C 1114 ORTEC ASPEC 927 User Manual SET TRUE ticks Sets the true time counter to the specified number of ticks The number represents true time in units of 20 ms 50 ticks sec Normally this value is set by the ASPEC 927 during data acquisition See also CLEAR COUNTERS and SHOW TRUE SET TRUE PRESET ticks Sets the true time preset to the specified number of ticks 20 ms tick During data acquisition when the true time counter reaches the preset number of ticks the preset is complete and the acquisition is stopped Setting a true time preset to O ticks disables the preset See also CLEAR PRESETS and SHOW TRUE PRESET SET ULD value This sets the upper level discriminator to value in channels SET UNCERTAINTY PRESET percent Sets the uncertainty preset to the specified value in percent Percent is a floating point value from 0 99 9999 See also SHOW UNCERTAINTY PRESET SET WINDOW start length Sets the window of interest to the specified start channel and number of channels The channels of spectral data in the window of interest are affected by commands such as CLEAR SET DATA and WRITE If neither start nor length is provided the window is set to the maximum size allowed
40. k area uncertainty the error spectrum is used If the peak limits are from L and H channels then the background variance is calculated as B n n B n n NE 1573573 72472479 x H L 1 4 where B sum of background counts for the channels adjacent to the peak start low energy channel L B sum of background counts for the channels adjacent to the peak end high energy channel H n the number of low background points n 1 3 or 5 used n the number of high background points n 1 3 or 5 used 2 2 The peak area uncertainty is calculated from where G is the sum of counts from the error spectrum from channels L to H o from error spectrum error x 100 Area from ZDT spectrum e Inour WAN and ISOWAN analysis engines the peak fitting routine fits all the library peaks as singlets to calculate the peak centroid peak start and end channels and peak background A linear background under the peak is assumed during the peak fitting process Using our gamma ray spectrum analysis software such as GammavVision or ISOTOPIC 32 931025C 1114 ORTEC ASPEC 927 User Manual Theerrorspectrum is always used to calculate the uncertainties of counts whenever needed For example if peak deconvolution is needed the error spectrum is used to find the best fit for the peak background A 4 Choosing a ZDT Mode When the counting rate is essentially constant duringthe time required to acquire the spectrum
41. materials or workmanship Permanent records of these tests are maintained for use in warranty repair and as a source of statistical information for design improvements Repair Service If it becomes necessary to return this instrument for repair it is essential that Customer Services be contacted in advance of its return so that a Return Authorization Number can be assigned to the unit Also AMT must be informed either in writing by telephone 865 482 4411 or by facsimile transmission 865 483 2133 of the nature of the fault of the instrument being returned and of the model serial and revision Rev on rear panel numbers Failure to do so may cause unnecessary delays in getting the unit repaired The AMT standard procedure requires that instruments returned for repair pass the same quality control tests that are used for new production instruments Instruments that are returned should be packed so that they will withstand normal transit handling and must be shipped PREPAID via Air Parcel Post or United Parcel Service to the designated AMT repair center The address label and the package should include the Return Authorization Number assigned Instruments being returned that are damaged in transit due to inadequate packing will be repaired at the sender s expense and it will be the sender s responsibility to make claim with the shipper Instruments not in warranty should follow the same procedure and AMT will provide a quotation Damage in Tra
42. me In addition to the rapidly decaying isotope example above the CORR ERR mode should be used when monitoring cooling water flow from a nuclear reactor The CORR ERR mode accommodates brief bursts of high activity in the water flowing past the gamma ray detector Both the corrected and error spectra are stored in the resulting spectrum file Note that the counts in the ZDT spectrum must be divided by the elapsed REAL time to compute the dead time corrected counting rate It is important to note that the standard deviation in the N counts gamma ray peak in the ZDT spectrum is not N _ Instead the standard deviation is obtained from the Nenn counts in the same peak ROI in the accompanying error spectrum The standard deviation in this case is And the standard deviation in the computed counting rate Real Time is Live Time A 4 1 The NORM CORR Diagnostic Mode Why is therea NORM CORR mode and why should you avoid using it This mode simultaneously collects the ZDT spectrum and the conventional uncorrected spectrum It is useful for demonstrating that the counts in the uncorrected spectrum divided by the live time is the same counting rate as the counts in the ZDT spectrum divided by the real time in the special case of constant counting rate Because the error spectrum is not collected in NORM CORR mode the standard deviation in the ZDT counts cannot be calculated if the counting rate is varying
43. memory The successive approximation 16384 channel ADCs with 1 25 ps conversion time have conversion gain settings of 512 1024 2048 4096 8192 and 16384 Dead time can be corrected using either the Gedcke Hale extended live time method or our innovative Zero Dead Time ZDT loss free dead time correction method A PC that supports the USB 2 0 interface can control multiple ASPEC 927 units via a high speed USB hub Features Dual fast 1 25 5 ADC and memory in single width NIM e Onboard memory allows fast downloads to your PC The ASPEC 927 features our ZDT mode of operation an alternative to the classical extended live time clock The ZDT method produces accurate results in all situations and completely overcomes some of the shortcomings of extended live time methods Moreover the new ZDT method overcomes some limitations in previous loss free dead time correction methods Most notably the ZDT mode does not require any manual adjustments and is capable of computing the statistical uncertainty of the corrected spectrum e PUR BUSY and GATE inputs Connects easily to many types of automatic sample changer e Bundled with our MAESTRO MCA Emulator Software The ASPEC 927 requires power from a NIM bin such as the ORTEC Model 4001A 4002D or the Model 4006 1 2 About This Manual This manual covers the initial installation and setup of the ASPEC 927 hardware Section 1 gives a brief description of the ASPEC 9
44. meter might start out with a very high dead time but the isotope will decay during the count and the dead time will be zero by the end of the count If the spectrometer extends the counting time to make up for the lost counts it will no longer be counting the same source as when the losses occurred As a result the number of counts in the peak will not be correct 30 931025C 1114 ORTEC ASPEC 927 User Manual When a supported ORTEC MCB operates in ZDT mode it adjusts for the dead time losses by taking very short acquisitions and applying a correction in real time that is as the data are coming in to the number of counts in the spectrum This technique allows the gamma ray flux to change while the acquisition is in progress yet the total counts recorded in each of the peaks are correct The resulting spectrum has no dead time at all in ZDT mode the data are corrected not the acquisition time Thus the net counts in a peak are divided by the real time to determine the count rate ZDT mode has a unique feature in that it can store both the corrected spectrum and the uncorrected spectrum or the corrected spectrum and the uncertainty spectrum Therefore supported MCBs allow you to choose between three ZDT Mode settings on the ADC tab under MCB Properties CORR and CORR ERR Table 1 shows which spectra are collected in the three possible ZDT modes Table 1 ZDT Modes Mode Uncorrected ZDT Corrected ZDT Erro
45. ng preset click to highlight it in the table This will load its Nuclide Energy and coefficients in the lower sections of the dialog Change as needed then click Update To remove a preset click to highlight it in the table then click Delete IMPORTANT These MDA presets are not dynamically calculated Each time you add an MDA preset to this table its CorrectionFactor value is calculated and stored in the MCB s memory If you then load a different library change the efficiency calibration or change the system geometry the spectroscopy application will not update the existing CorrectionFactors and your MDA presets may no longer be applicable When using spectrum analysis applications such as GammaVision and Scinti Vision you can create an analysis options file SDF or SVD file for each system geometry that you use and include in it a set of MDA presets specific to that geometry efficiency calibration and nuclide library You can then recall this tailored analysis options file as needed 4 TROUBLESHOOTING 4 1 MAESTRO Does Not Connect with the ASPEC 927 If properly installed and functioning MAESTRO software or other CONNECTIONS programs cannot find and communicate with the ASPEC 927 check for the following There is no power to the ASPEC 927 The USB cable is not properly connected e Check the Master Instrument List on the PC to ensure that the ASPEC 927 is on the list If itis not listed shut down and restart t
46. nsit Shipments should be examined immediately upon receipt for evidence of external or concealed damage The carrier making delivery should be notified immediately of any such damage since the carrier is normally liable for damage in shipment Packing materials waybills and other such documentation should be preserved in order to establish claims After such notification to the carrier please notify AMT of the circumstances so that assistance can be provided in making damage claims and in providing replacement equipment if necessary Copyright 2014 Advanced Measurement Technology Inc rights reserved ORTEC is a registered trademark of Advanced Measurement Technology Inc All other trademarks used herein are the property of their respective owners NOTICE OF PROPRIETARY PROPERTY This document and the information contained in it are the proprietary property of AMETEK Inc It may not be copied or used in any manner nor may any of the information in or upon it be used for any purpose without the express written consent of an authorized agent of AMETEK Inc TABLE OF CONTENTS SAFETY INSTRUCTIONS AND 5 4 V 1 1 1 2 About This Manual 1 2 SOFTWARE AND HARDWARE INSTALLATION 2 Z1 C Te Gor qoe en dcs di dp dcum qo e AIO HE E pn dU e ICE ES D CAP LONE dE 2 2
47. ot busy and is equal to the real time minus the dead time the time the MCB is not available Enter the ROI Peak count preset value in counts With this preset condition the MCB stops counting when any ROI channel reaches this value unless there are no ROIs marked in the MCB in which case that MCB continues counting until the count is manually stopped Enter the ROI Integral preset value in counts With this preset condition the MCB stops counting when the sum of all counts in all channels for this MCB marked with an ROI reaches this value This has no function if no ROIs are marked in the MCB 931025C 1114 ORTEC ASPEC 927 User Manual The Uncertainty preset stops acquisition when the statistical or counting uncertainty of a user selected net peak reaches the value you have entered Enter the Preset in 96 value as percent uncertainty at 1 sigma of the net peak area The range is from 9996 to 0 196 in 0 196 steps You have complete control over the selected peak region The region must be at least 7 channels wide with 3 channels of background on each side of the peak Note that MAESTRO calculates this preset once per 40 seconds Therefore the software will continue data acquisition up to 40 seconds after the preset has been reached and the uncertainty achieved for a high count rate sample may be lower than the preset value Use the Start Channel and Width fields to enter the channel limits directly or click on Suggest Region If the marke
48. ptions for applications such as GammavVision ScintiVision ISOTOPIC etc The MDA Fig 10 ASPEC 927 MDA Preset Tab preset calculation uses the following formula MDA a b c Counts Live time CorrectionFactor where a b and c are determined by the MDA criteria you choose Counts is the gross counts in an ROI that is 2 5xFWHM around the target peak energy Live time is evaluated in 40 second intervals for the MDA presets CorrectionFactor is the product of the calibration efficiency at the specified peak energy and the peak s branching ratio yield as listed in the working active library ORTEC ASPEC 927 User Manual 931025C 1114 NOTE MAESTRO does not support efficiency calibration The efficiency component in the CorrectionFactor is set to 1 0 the preset field is labeled Correction instead of MDA and the preset is based on counting activity cA instead of becquerels You can enter the MDA preset either in counts or corrected for factors such as sample volume attenuation or calculated efficiency For example if you manually calculate the efficiency for a peak you can enter a corrected MDA target value by multiplying the desired MDA value times the calculated efficiency and entering the product as the Correction To add an MDA preset enter the preset value in the MDA or Correction field select the Nuclide and Energy enter the desired values for coefficients a b and c then click Add New To edit an existi
49. r Spectrum Spectrum Spectrum Off ZDT Disabled Yes No No NORM CORR ZDT LTC Mode Yes Yes No CORR ERR ZDT ERR Mode No Yes Yes A 1 Off Uncorrected Spectrum Only In this mode only the uncorrected spectrum live time and real time with dead time losses also called the ive time corrected or LTC spectrum is collected and stored in the SPC file The LTC spectrum can be used to determine exactly how many pulses at any energy were pro cessed by the spectrometer The corrected spectrum gives the best estimate of the total counts that would have been in the peak if the system were free of dead time effects The uncertainty spectrum can be used to calculate the counting uncertainty channel by channel in the corrected spectrum NOTE When the spectrometer is placed in ZDT mode the throughput of the instrument is reduced somewhat as extra processing must be done on the spectrum therefore if the gamma ray flux is not changing as a function of time but absolute highest throughput is desirable you might wish to store only the LTC spectrum in the MCB memory A 2 NORM CORR ZDT and Uncorrected Spectra Stored When the ZDT mode is set to CORR the two spectra stored are the LTC spectrum and the ZDT spectrum corrected for the dead time losses real time only Unfortunately in the analysis of the ZDT spectrum the uncertainty of the measurement cannot be determined using either spectrum NOTE This mode is not useful fo
50. r changeable from property page LFR not user changeable from property page requires Bit 96 Portal Monitor style List Mode Synch is available DSPEC Pro Auxilliary BNC input available SET DISPLAY is NOT used to select ZDT data view requires Bit 93 ID Reports DO ID SHOW REPORT SHOW REPO LINES Has neutron detector SHOW CRM 2 returns valid number 15 ORTEC ASPEC 927 User Manual 931025C 1114 Bit Meaning 116 117 118 119 120 121 122 123 124 125 126 127 Extended feature mask available SH FEAT EXT 6 COMMANDS AND RESPONSES Software communication with the ASPEC 927 will take place through the Connections software layer CONNECTIONS is used by all ORTEC software and can be accessed for other software development with our CONNECTIONS Programmer s Toolkit with Microsoft ActiveX Controls A11 BW Use the DLL interface call MIOComm or the ActiveX control UCONN s Comm method to send commands to instruments and receive responses 6 1 Command Format The commands consist of a command header that may be followed by numeric parameter values The header consists of a verb a verb and noun or a verb noun and modifier each separated by underscores The first four letters of a word in a command will always be enough to uniquely identify that word when composing commands for the instrument For example the command ENABLE GAIN STABILIZATION can be abbreviated to ENAB GAIN STAB
51. r is positioned in an ROI around the peak of interest Suggest Region reads the limits of the ROI with the marker and display those limits in the Start Chan and Width fields The ROI can be cleared after the preset is entered without affecting the uncertainty calculation If the marker is not positioned in an ROI the start channel is 1 5 times the FWHM below the marker channel and the width is 3 times the FWHM The net peak area and statistical uncertainty are calculated in the same manner as for the MAESTRO Peak Info command Marking the Overflow checkbox terminates acquisition when data any channel exceeds 2 1 gt 2x10 counts 3 5 MDA Preset The MDA preset Fig 10 can monitor up to 20 nuclides Properties for MCB 129 Input 1 at one time and stops data collection when the values of the minimum detectable activity MDA for all of the user specified MDA nuclides reach the specified value HDA Preset Nucl Energy Presets are expressed and are evaluated every 40 seconds The detector must be calibrated for energy _Uedae _ peee in all spectroscopy applications and for efficiency in all MDA Preset Coefficients applications but MAESTRO Correction cA 0 000000 Nuclide 0 000000 The MDA presets are implemented in the MCB i e the Energy ke C 0 000000 entries you make on this screen are saved in the MCB memory and have no direct link to MDA methods selected in the analysis o
52. r quantitative analysis if the counting rate varies significantly during the measurement time particularly if the user desires an accurate counting rate and standard deviation calculation When you select the NORM CORR mode the spectroscopy software ignores the ZDT spectrum and analyzes the LTC spectrum as it would for the Off ZDT mode Patent number 6 327 549 31 ORTEC ASPEC 927 User Manual 931025C 1114 A 3 CORR ERR ZDT and Error Spectra Stored In the CORR ERR mode the estimation of the statistical uncertainty is stored in place of the LTC spectrum and is referred to as the error spectrum ERR In this mode the ZDT spectrum is used to measure the counts in a peak and the error spectrum is used to determine the uncertainty of the measurement made in the corrected spectrum For example if the area of a peak is measured in the corrected spectrum by summing channels 1000 to 1100 the variance of the measurement can be determined by summing the counts in channels 1000 to 1100 in the error spectrum Or shown another way the counts in channel can be expressed as N i y V i with a 1 sigma confidence limit where N is the corrected spectral data and V is the variance error spectral data The live time is set to the real time within the analysis engine during the analysis of ZDT spectra A CORR ERR spectrum is analyzed as a regular spectrum most of the time with a few exceptions as listed below Tocalculate the pea
53. red at a later time 3 Tostart the software type mcb in the Search programs and files box on the Windows Start menu then click the MCB Configuration search result or open the Windows Start menu and click MAESTRO then MCB Configuration The MCB Configuration program will locate all of the powered on ORTEC MCBs on the local computer and the network and display the list of instruments found the Master Instrument List Fig 3 If you wish you may enter customized instrument ID numbers and descriptions Section 2 2 4 2 When you close the dialog any changes you have made to an ID number or description will be written back to the corresponding MCB Confiqure Instruments Version 8 01 Number amp Description Close D5Pec 5 Cancel DS50 00P2U2 MCB 1 _ Canea D550 11195158 MCE 1 D550 11195158 MCB 2 Help Station Aight Station 5 Left Station 3 Renumber All Station 4 DSPEL PRO MCB 123 Henumber Mew Instr Input Sustem Fig 3 MCB Numbering and Descriptions 931025C 1114 ORTEC ASPEC 927 User Manual 2 2 4 1 CONFIGURING A NEW INSTRUMENT The first time a new instrument is detected the dialog shown in Ted 1 All detectors must have an ID number Since nane of your detectors have ID Fig 4 will remind you that all new Instruments must be assigned numbers it iz recommended that you press Renumber All to establish initial ID a unique non zero ID number Click OK
54. s Once reaches 20 or MDAPreset equals 0 the acquisition terminates SET PRESET MDAPreset PeakNumber Sets the MDAPreset PeakNumber value as shown in the equation in the SET MDA COEF description above MDAPreset is usually the product of the desired MDA the yield and the efficiency PeakNumber is a parameter that specifies which of up to 20 0 19 MDA presets to change If PeakNumber is omitted in the set command 21 ORTEC ASPEC 927 User Manual 931025C 1114 all MDA preset values will be set to 0 disabled and the supplied value will be applied to MDA Preset O This provides compatibility software that only supports the one nuclide MDA method implemented in some MCBs SET MODE PHA Sets the mode to PHA SET MODE ZDT mode Sets the ZDT mode LIST MODE ZDT can be used to determine which modes are valid Mode 0 standard indicates that a normal and corrected spectrum should be stored Mode 1 enhanced indicates that an error and a corrected spectrum should be stored ENABLE ZDT must be issued to turn on ZDT mode SET OUTPUT port value This sends the value to the port This command can be issued without entries for port and value because the ASPEC 927 has only one port If you wish to specify a port number it must be zero for this unit See also SHOW OUTPUT See also STEP OUTPUT SET OUTPUT HIGH output num Sets the Change Sample output to the high level The ASPEC 927 has only one sample changer BNC therefore if you
55. s tab Fig 6 contains the Gate ZDT Mode Properties for MCB 129 Input 1 Conversion Gain Lower Level Discriminator and Upper Level Discriminator controls In addition the current real time live time and count rate are 285 Conversion Gain 18440 Dif monitored at the bottom of the dialog Lower Level Disc 160 Made Upper Level Disc 383 H Gate This control lets you to select a positive TTL logic gating function With gating Off no gating is performed that is all detector signals are processed in Coincidence mode a gating input signal must be present at the proper time for the conversion of the event in Anticoincidence mode the gating input signal must not be present for the conversion of the detector signal The gating signal must occur prior to and extend 500 ns beyond peak detect peak maximum Real Time Live Time 0 00 0 00 Fig 6 ASPEC 927 ADC Tab 6 931025C 1114 ORTEC ASPEC 927 User Manual ZDT Mode Section 1 6 for a detailed discussion of this feature Use this droplist to choose the Off LTC spectrum only or CORR ERR ERR and ZDT spectra mode If a ZDT mode is selected both spectra are stored in the same spectrum SPC file If you do not need the ZDT spectrum you should select Off In MAESTRO the display can show either of the two spectra Use F3 or Acquire ZDT Display Select to toggle the display between the two spectra In the Compare mode F3 switches bot
56. sition when the statistical or counting uncertainty of a user selected net peak reaches the specified value e Nuclide MDA Stops data collection when the value of the minimum detectable activity MDA for up to 20 user specified MDA nuclides reaches the needed value The presets are implemented in hardware so the computer does not have to poll the ASPEC 927 for the preset to operate See Section 3 4 for details on the MDA preset calculation 5 2 Indicators and Controls ADC1 Indicates activity for ADC 1 ADC2 Indicates activity for ADC 2 Subject to change without notice 11 ORTEC ASPEC 927 User Manual 931025C 1114 5 3 Inputs INPUT Each input accepts positive unipolar positive gated integrator or positive leading bipolar analog pulses in the dynamic range from to 10 V 12 V maximum semi Gaussian shaped time constants from 0 25 us to 30 us gated integrator shaped time constants from 3 hs to 30 us or delay line shaped with width 20 25 us 4 1 dc coupled No internal delay BNC connector ADC GATE Not available on PLUS transistor reset preamplifier or SMART 1 detectors Accepts a positive TTL input Computer selectable Coincidence Anticoincidence or Off mode Signal must occur prior to and extend 0 5 us beyond the peak of the pulse BNC connector Z 1 PUR Pile up rejection input accepts TTL signal signal must occur prior to peak detect 7 1 BNC connector BUSY Busy input used by liv
57. t to zero This command is equivalent to the combination of CLEAR COUNTERS and CLEAR DATA commands CLEAR ALL This command is equivalent to the combination of CLEAR COUNTERS CLEAR DATA CLEAR PRESETS and CLEAR ROI commands CLEAR COUNTERS The live time and true time counters are set to zero 18 931025C 1114 ORTEC ASPEC 927 User Manual CLEAR DATA The channels of spectral data in the window of interest see SET WINDOW command set to zero The ROI flags are not changed nor are the presets changed CLEAR MDA PRESET Clears all MCA preset values This command is used to quickly clear the list of MDA preset values CLEAR PRESETS The live time true time ROI integral ROI peak and overflow presets are all set to zero disabled CLEAR ROI The region of interest flags for the channels in the window of interest see SET WINDOW command in the currently selected device see SET DEVICE command are cleared DISABLE OVERFLOW PRESET Disables the overflow preset Channels that receive a count when they contain 2147483647 counts the maximum number of counts will roll over to zero counts if the overflow preset is disabled See also ENABLE OVERFLOW PRESET and SHOW OVERFLOW PRESET DISABLE TRIGGER Disables the data acquisition trigger that was enabled by the ENABLE TRIGGER command Cancels an ENABLE TRIGGER REP if it is issued before the acquisition starts See ENABLE TRIGGER TRIGGER and SHOW TRIGGER DISABLE ZDT Returns
58. th the computer powered on connect the ASPEC 927 to the computer s USB port 2 Windows will indicate that the ASPEC 927 has been detected In Windows 8 and 7 the driver will install without a wizard In XP the new hardware installation wizard will open Click Next indicate you do not wish to connect to the internet or the Microsoft website to locate the driver choose the automatically locate driver option and follow the remaining prompts to completion When this operation is complete you are ready to run the MCB Configuration program so that MAESTRO and other CoNNECTIONS software can recognize the ASPEC 927 2 2 4 Step 4 Run MCB Configuration to Communicate With Your MCBs IMPORTANT This is an abbreviated discussion of the operation and use of the MCB Configuration program We strongly recommend that you read the instructions for the CONNECTIONS Driver Update Kit for complete details on the command line arguments that change how the program searches for MCBs customizing MCB ID Numbers and Descriptions changing your Windows firewall settings to allow MCB access across a network enabling additional device drivers and troubleshooting 1 Make sure the ASPEC 927 is connected and powered on 2 Connect and power on all other local and network ORTEC instruments to be used as well as their associated computers Otherwise the MCB Configuration program will not detect them during installation Any instruments not detected can be configu
59. the preset The integral preset may be set to from O disabled to 4294967295 counts See also CLEAR PRESETS and SHOW INTEGRAL PRESET SET LIVE ticks Sets the live time counter to the specified number of ticks The number represents live time in units of 20 ms 50 ticks s Normally this value is set by the ASPEC 927 during data acquisition See also CLEAR COUNTERS and SHOW LIVE SET LIVE PRESET ticks Sets the live time preset to the specified number of ticks 20 ms tick During data acquisition when the live time counter reaches the preset number of ticks the preset is complete and the acquisition is stopped Setting a live time preset to O ticks disables the preset See also CLEAR PRESETS and SHOW LIVE PRESET SET LLD chan Sets the lower level discriminator to chan which must be between 0 and 16383 See also SHOW LLD SET MARK Not used by the ASPEC 927 included for backward compatibility SET MDA COEF a b c Sets the coefficients in the MDA preset calculation to the specified values A b and care floating point values The MDA preset checks for the following condition to be met b c Counts in ROI MDA Preset gt Live Time The calculation is performed once every 30 seconds with starting at 0 and advancing through each of up to 20 unique MDA presets j only advances once the preset has been met Note that a b and c are the same for each of the unique presets Only the ROI range and the MDA preset change when advance
60. ty 11 We 8 MDA Dreset RR Reyes 9 Pile up 12 PONET auae eam pages thee cues ones TEE 12 Presets see Acquisition presets 8 Realtime 8 Resolution HEU LEER ARES 11 Uncertainty preset 9 MOOS aeui oram acr ed ea x edo m oe da 7 35 ORTEC ASPEC 927 User Manual 931025C 1114 Intentionally blank 36
61. ys to reduce the chance that other users will renumber your MCBs e Add the I flag to their MCB Configuration command line as described in the CONNECTIONS Driver Update Kit instructions This will allow you to assign whatever ID Numbers you wish regardless of the numbers assigned by other users on your network Ideally everyone using ORTEC instruments on your network should make this change To prevent others from renumbering your MCBs or performing any other actions except read only viewing password lock your MCBs with the MAESTRO Lock Unlock Detector command If you lock an MCB that will be controlled by a JOB stream remember to include the proper password unlock commands in your JOB file see the MAESTRO user manual If this is a first time installation of ORTEC products all your instruments will be new ORTEC ASPEC 927 User Manual 931025C 1114 If a modified description has already been applied to a particular instrument you can restore the default description by deleting the entry in the Description field and re running MCB Configuration After MCB Configuration runs the default description will be displayed 2 3 Attaching More Than One ASPEC 927 to the PC Once the drivers have been installed for one ASPEC 927 adding subsequent units is simple You can attach an almost unlimited number of ASPEC 927 units and other ORTEC MCBs to your computer REMINDER Be sure to run MCB Configuration any time you add new

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