Braun MCA166-USB user manual Troubleshooting

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MCA166-USB

7 Troubleshooting

General Remark:

Before changing anything concerning the hardware, plugging or pulling cables etc. shut down the high voltage and switch off the MCA.

Soldering or manipulating with the SMD boards is strongly not recommended for users. We have specialists for that. If you have a problem which cannot be solved by the table below, contact us. If it is really a hardware fault, we can repair this for a fair price.

1.Software tells "MCA not connected!"

●Switch on the MCA

●Check cable between MCA and Computer. Serial cable may be loose or not connected. Connect cable correctly

●Check MCA battery. Charge MCA battery

●The MCA is not recognized (”MCA not connected”) running MCA DOS Software in a DOS Box on Notebooks

●Disable Power Save Mode for COM Port

2.MCA lamp does not flash regardless if the switch is on or off

●MCA battery empty. Charge MCA battery.

●The MCA firmware programming switches are in a wrong position. The firmware programming switches must be all in ”off” position. Do not play around with them!

3.MCA lamp flashes irregularly, Computer tells "MCA power failure" or beeps

●MCA battery very low. Charge MCA battery.

●MCA internal or communication error. Switch off and on MCA, restart software.

4.Power Supply Error: Goto Diagnostics, Measurement is not possible

●MCA battery very low. Charge MCA battery and switch on HV and preamplifier supplies again.

●Go to diagnostics, blinking power supply currents indicate overload.

●Short circuit in detector? Check if detector is defective. Disconnect detector, try again. (Do not pull or plug connectors when MCA is on!) Change detector.

●Too power-hungry preamplifier. A fully charged MCA battery may help sometimes. Otherwise you have to exchange the preamplifier.

●If the diagnostics menu shows irregular high currents or even overload although there is no detector connected to the MCA and the battery voltage is ok, there may be a fault in the internal power supply. Contact GBS for repair.

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Contents MCA166-USB MCA166-USB Exclusion of liabilityTable of Contents Appendix Introduction Hardware Users safety informationGeneral Description Power management Switching onConnecting the MCA166-USB to a Computer Charging the MCA166-USBConnection of detectors Software Additional external battery pack and Power PackOverview U235 MS-DOS, WinU235 Windows Spec MS-DOS, WinSPEC WindowsMCS MS-DOS, WinMCS Windows UF6 MS-DOS, WinUF6WinSCAN RateIdentify MCAPlot and MCAPrint Source TargetMCA166-USB parameters for use with different detectors MiscellaneousSome of the most important photon energies Isotope Half-life Energy keV Branching ratio %MCA166-USB Hardware Specifications Technical DataAmplifier 2 ADC Preamplifier Voltages Power supplyBattery High VoltageComputer Interface Mechanical specificationEnvironmental ratings Diagrams and pin connections Block Diagram of the MCA166-USBContact Voltage Max. Current Contact SignalHV-Inhibit mode2 Troubleshooting Page MCA166-USB File Content Explanation $ENERFIT File Content ExplanationFile Content Explanation $ROI $SPECREM$FASTDISCR 400 $SLOWDISCR File Content $ADC$PRESETS $INPUT$MCSINPUT $POWERSTATE$MCSCHANNELS $MCSTIMEFile Content Explanation $WINSPECINFO File Content Explanation $RECCOUNTER$RECERRORCOUNTER $SPECINTEGRAL$WINSPECINFO AnalysiscsratioIcod AnalysismgaOUT File Content Explanation $UF6INSPINFO$WINSCANINFO LOT LOT ID MBAFile Content Explanation $INSPINFO MBA LOT LOT IDAppendix 2 MCA166-USB algorithm, formulas Area and the Area Uncertainty FunctionCentroid SmoothStrip Appendix 3 Description of the communication DLLs8 MCA166-USB A3.1.3 Functions to work with the MCA Mmcareset MmcastartacquireMmcaclearmemory MmcasetmodemcaMmcasetmodemcs MmcacleartimeMmcasetpresetrealtime MmcasetpresetnoneMmcasetpresetlivetime MmcasetpresetintegralMmcasetrepeat MmcasetadcresdiscrMmcasetroi MmcasetmcschannelMmcasetmcsinputttl MmcasetmcsinputicrMmcasetmcsinputdiscr Mmcasetmcainputamplifierneg MmcasetgainMmcasetmcainputamplifierpos MmcasetmcainputdirectposMmcasetshapingtimehigh MmcasetthresholdMmcasetshapingtimelow MmcasetpileuprejectionMMCASETPZCMANUAL18 MmcasetfastMmcasetslow MMCASETPZCVALUE19Mmcasetstabparam MmcasetpreamplifierpowerMmcasetstabilisation MmcasethighvoltagesMmcasetuserdata MmcasettdfMMCASETUF6ROIS Contents of the Mmca User Date memory21 MmcaqueryuserdataPage Mmcaquerypower Mcamode MODEMCA, Modemcs MmcaquerystateMcastabresult STABSTARTED, Stabactive Mcainputpol Inputpolaritypositive Inputpolaritynegative STABIDLE, StaberrorMcainputadc Adcamplifier ADC Directpos Adcdirectneg DTCMmcaquerysystemdata MMCAQUERYIMAGE36 Mmcaqueryspectra MmcaqueryenrichmentMmcaquerycentroid MMCAQUERYUF6INFOMMCAQUERYUF6ROIS MmcaqueryonlineMmcaqueryvoltagecurrent Cmdstop CmdinitCmdstart StatestopCmdclear CmdsetmodeModemca Modemcs Clearmemory = Cleartime Clearroi ClearallCmdsetadcresdiscr CmdsetpresetsPresetnone Presetreal Presetlive Presetint Presetarea LLD, ULDCmdsetmcschannel CmdsetrepeatCmdsettimeperchannel Cmdsetinputpolarity CmdsetgainCmdsetmcainput Cmdsetthreshold CmdsetmcsinputCmdsetshapingtime Cmdsetfast CmdsetpurCmdsetslow Cmdsetpzc CmdsetpzctimeoffsetCmdsetstabparam Cmdsetpreamplifierpower CmdsetbiasCMDSETUF6ROI CmdsettdfCmdsetuserdata Cmdqueryspectra CmdquerypowerCmdquerystate CmdqueryimageCmdsystemdata CmdqueryuserdataCmdquerycentroid Cmdqueryenrichment CMDQUERYUF6ROISAppendix 5 Changing the MCA166-USB Firmware

MCA166-USB specifications

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