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73

R?
Read Both Channels Measurement Query

Syntax:

R?

Parameters:

None

Function:

This query returns the last valid measurements taken from both channels.

The units of the measurements are the units defined at the time the readings
were made. Because it is possible to make this query faster than measure-
ments are actually being taken, the values returned by successive queries may
be multiple reports of a single measurements.

To ensure that fresh data is being read the NVDA(new valid data available) bit in
the Status Byte can be checked either by issuing a serial poll or by using the
*STB? command. A serial poll is recommended if the GPIB interface is being used.
The NVDA bit will be 1 if the last valid measurement has not been read. The
NVDA bit for a specific channel will be reset to 0 immediately after a measurement
is queried from that channel and will stay 0 until a new valid reading is taken. A
valid reading is a reading that would return a status of 0 using the RWS? query.

Returns:

<number>, <number>

or <number>

<number> is a floating point number in the exponential format.

If two channels are running simultaneously then, both are returned separated
by a comma.

Related Commands:

*STB?, MODE_n, MODE_n?, R_n?, RWS?, RWS_n?,

UNITS_n, UNITS_n?

R_n?
Read Single Channel Measurement Query

Syntax:

R_n?

where n is either A or B

Parameters:

None

Function:

This query returns the last valid measurements taken from the specified channel.

The units of the measurements are the units defined at the time the reading was
made. Because it is possible to make this query faster than measurements are
actually being taken, the values returned by successive queries may be multiple
reports of a single measurements. To ensure that fresh data is being read the
NVDA(new valid data available) bit in the Status Byte can be checked either by
issuing a serial poll or by using the *STB? command. A serial poll is recom-
mended if the GPIB interface is being used. The NVDA bit will be 1 if the last
valid measurement has not been read. The NVDA bit for the specified channel
will be reset to 0 immediately after a measurement is queried from that channel
and will stay 0 until a new valid reading is taken. A valid reading is a reading
that would return a status of 0 using the RWS? query.

Returns:

<number>

<number> is a floating point number in the exponential format.

Related Commands:

*STB?, MODE_n, MODE_n?, R?, RWS?, RWS_n?, UNITS_n,

UNITS_n?

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Содержание 2835-C

Страница 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Страница 2: ...Model 2835 C Multi Function Optical Meter Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 3: ...Model2835 C Multi FunctionOpticalMeter Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 4: ...ulting from modification or misuse of any product or part This warranty also does not apply to fuses batteries or damage from battery leakage This warranty is in lieu of all other warranties expressed...

Страница 5: ...1 IMMUNITY Electrostatic Discharge per IEC 1000 4 2 severity level 3 Radiated Emission Immunity per IEC 1000 4 3 severity level 2 Fast Burst Transients per IEC 1000 4 4 severity level 3 Surge Immunit...

Страница 6: ...3 1 O I Power 7 2 3 2 SHIFT 7 2 3 3 DISP Display Brightness 7 2 3 4 FILTER Signal Filtering 7 2 3 5 ZERO Offset Subtraction 8 2 3 6 AUTO Automatic Gain Ranging 8 2 3 7 STO REF Store Reference Value 8...

Страница 7: ...ation Measurement 26 2 8 5 Measuring a Laser Pulse Energy with a Thermopile Detector 26 2 8 6 Using the Model 2835 C as an Exposure Controller 27 Section 3 Principles of Operation 3 1 Introduction 29...

Страница 8: ...PIB Address 43 Section 5 Remote Command Reference 5 1 Model 2835 C Remote Interface Commands 44 5 2 Device Independent Commands 46 5 3 Device Dependent Commands 57 Section 6 Maintenance Test and Troub...

Страница 9: ...Input Port 24 8 Measuring Laser Pulse Energy via a Thermopile in INTG Mode 27 9 Model 2835 C Analog Signal Flow Diagram 29 10 Model 2835 C Digitized Signal Flow Block Diagram 30 11 Thermopile Signals...

Страница 10: ...s 18 Table 11 User Calibration Operations 19 Table 12 SAMPLE PREC States and Limits 20 Table 13 DC SAMPLING Operations 20 Table 14 TRIGGER OUT Operations 21 Table 15 EXT TRIGGER IN Operations 21 Table...

Страница 11: ...fety precau tions required to avoid possible injury Read the instruction manual thoroughly before using to become familiar with the instrument s operations and capabilities WARNING The American Nation...

Страница 12: ...Fahrenheit fA femtoamps Hz hertz cycles per second I V current to voltage converter kHz kilohertz LSD least significant digit k kiloOhms mA milliamps mV millivolts nA nanoamps nF nanofarads nm nanome...

Страница 13: ...Conductor GPIB Power 100 120 220 240 VAC 10 50 60 Hz Display 5 5 digit annunciated VFD Display Update Rate 10 Hz Gain Ranges Up to 7 decades Detector and MODE dependent Operating Environment 0 C 40 C...

Страница 14: ...A 793 A 2 51 mA A D Resolution 61 7 pA 195 pA 616 pA 1 95 nA 6 13 nA 19 4 nA 61 3 nA 194 nA 613 nA Full Scale Accuracy 3 1 1 1 1 1 1 1 1 1 Typical Full Scale Accuracy 3 2 2 2 2 2 2 2 2 2 Worst Case Ba...

Страница 15: ...789 mV 2 50 V 7 91 V 25 0 V A D Resolution 193 nV 610 nV 1 93 V 6 10 V 19 3 V 61 0 V 193 V 610 V 1 93 mV 6 10 mV Full Scale Accuracy 3 1 1 1 1 1 1 1 1 1 1 Typical Full Scale Accuracy 3 2 2 2 2 2 2 2 2...

Страница 16: ...when the display units are Watts or Joules R is the detector responsivity associated with the current wave length setting Measurement calculation when the display units are ten times the base ten log...

Страница 17: ...up quickly and easily The 2835 C can react to or provide triggering act as an exposure or noise meter or data log up to 1 000 measurements per channel TheModel2835 CiscompatiblewithallofNewport sLow P...

Страница 18: ...ulti FunctionOpticalMeteraswellasinformationfortroubleshootingandobtaining serviceifnecessary Thisinformationisdividedintothefollowingsections Section1 GeneralInformationandFunctionalDescription Secti...

Страница 19: ...5 DetectorConnectionandSetup Section2 6 1 5 OptionalAccessoriesandServices TheNewportCatalogpresentsup to dateinformationondetectors detector accessoriesanddetectorcalibrationservicesavailableforusewi...

Страница 20: ...lesofincidence Figure2illustrates andidentifiestheprimaryregionsandannunciatorswithin theModel2835 C sdisplay PULSE CONT SNGL DC INTG MODE P P MENU EDIT SHIFT STORE USR CAL EXT ATTN ZERO AUTO FILTER A...

Страница 21: ...einmenumode Measurement isstopped STORE Meterisloggingmeasurementsintomemory i e datalogging USRCAL User versuscalibrationmodule hassuppliedthe detectorresponsivityinuse EXT Externaltriggerinputisenab...

Страница 22: ...omaticgainrangingonandoff CH A DISPCH DISPCH SelectschannelAasthedisplaychannel CH B DISPCH DISPCH SelectschannelBasthedisplaychannel STO REF STOREF_n STOREF_n Stores last reading for future dB and RE...

Страница 23: ...er to operate in a dark environ mentwithoutlightpollution fromthedisplay exceptforonedimscanning decimalpointandthemeasurementactivityannunciator Whenthedisplayis OFF the R S R S A or R S B keys may b...

Страница 24: ...inginCONTPULSEmode thearrivalrateofpulsesmustbe above 1 Hz In P P CONT mode the arrival rate of peaks must be above 50 Hz AUTOgainrangingisnotallowedinSNGLmeasurementmodes Whenexiting a SNGL measureme...

Страница 25: ...aythemeasurementwavelengthinthemessage displayarea PressENTERtolighttheEDITannunciatorandcausethelast digit of the wavelength to blink Press to adjust the blinking digit up or down and to change which...

Страница 26: ...ed togetherwithchannelAreadingsleadingchannelBreadingsbyabout70 sec Otherwisethechannelsrunindependentofeachother 2 3 13 MODE MeasurementMode TheModel2835 Cprovidesanumberofmeasurementmodesforacquirin...

Страница 27: ...whentwodetectorcalibrationmodulesarepluggedinto the meter and 1000Hz for one AUTO is disabled in SNGLmode CONTPULSE Themetercaptureseveryenergypulseuptoafrequency of500Hzwhentwodetectorcalibrationmod...

Страница 28: ...ontainingthemostrecentmeasurementstoadepth 1 N 100 The default value is N 10 Display occurs without disrupting dataacquisitionorstorageandresultsarecontinuouslyupdated PresstheSTATSkeytoenterthestatsd...

Страница 29: ...evel list press the ESC key Inthemenu allkeyfunctionsareignoredexceptfortheMENU ENTER ESC and the keys Each key will act without having to initially press SHIFT PressingSHIFTwilltoggletheSHIFTannuncia...

Страница 30: ...reaindicateacurrentpositionatthetop second thirdorfourth level of the menu hierarchy Figure 4 Table 7 presents the menu functions andtheirhierarchy Top Level Second Level Third Level Fourth Level Figu...

Страница 31: ...LIB USR CAL OFF USR CAL ON OFF USRRESP d dddE dA W PRESENTRESP d dddE dA W DCSAMPLING SAMPLEPREC PREC 20000 4096 CNT SAMPLEFREQ FREQ ddd ddd HZ TRIGGEROUT TRIGONCMPLT TRIGONCMPLT TRIG AT FREQ TRIGONLE...

Страница 32: ...ngolddataorstoppingdatastorage Data storing is enabled by the user via the DATA STORE menu function Edit theON OFFconditiontoenableordisabledatastoringandtheassociated STOREannunciator WheninCONTmode...

Страница 33: ...calibrationmodulecurrentlypluggedintothemeter Configurations usingthesamemodelofdetectorarecompatiblewhileconfigurationsusing differentmodelsofdetectorsareincompatible Thedefaultconfigurationof themet...

Страница 34: ...eypadCommands AssociatedRemoteCommands SAVECONFIG AdjustSAVETOd SAV andENTER RECALLCONFIG AdjustRECALLd RCL RST andENTER 2 4 4 AUTOCAL TheAUTOCALcommandcausesthe2835 CtoperformA Dconversionsof amplifi...

Страница 35: ...fthedetectordoesnothaveanattentuator orif USRCALison Section2 4 6 theATTNsettinghasnoeffect 2 4 6 UserCalibration TheModel2835 Callowsonetocreateadetectorresponsivitywhichover ridestheresponsivitiesob...

Страница 36: ...500 0 Hz or 1000 0 Hz Table13 DCSAMPLINGOperations MenuFunction KeypadCommands Associated Remote Commands SAMPLEPREC EditPREC 20 000 SPREC SPREC 4096CNT SAMPLEFREQ EditFREQ SFREQ SFREQ ddd dddHZ 2 4...

Страница 37: ...EQ ddd dddHz TRIGOUTFREQ TRIGOUTFREQ TRIGGERLEVEL EditLVL d dddE ddW TRIGOUTLVL TRIGOUTLVL TRIGGERINTG EditINTG d dddE ddJ TRIGOUTINTG TRIGOUTINTG Displayed units may be W or J depending upon the dete...

Страница 38: ...ands TONE Edit TONE ON OFF TONE TONE 2 4 12 DetectorSwitchPosition SomeNewportEnergydetectorshaveaswitchthatsetsanelectronicdecay timeconstanttooptimizeoperationforvariouspulserepetitionrates Asthis a...

Страница 39: ...operatewithlinevoltagesoverthe followingranges 90 264VAC 50 60Hz Beforeturningthemeteron config ureittolocalvoltageusingthefollowingprocedure i ConfiguretheModel2835 C spowersupplyvoltageselectionswit...

Страница 40: ...module Insertthecalibrationmoduleinto the front panel input port of the Model 2835 C An alignment pin forces the properorientationofthecalibrationmodule Detector Cable BNC Calibration Module Figure6 C...

Страница 41: ...emovingtheinfluenceofambientlightand otherdrifteffects i PluginaNewportLow PowerorHigh Powerdetectorviaitsassociated calibration module and then turn the meter on Set MODE to DC CONT set AUTOonandsett...

Страница 42: ...Power thermopile detector executeAUTO CALperSection2 4 4 iii Coverorotherwiseblockthesourcethatyouwillbemeasuring turnZERO on and then set the MODE to INTG As you enter the INTG mode the meterwillbeg...

Страница 43: ...heintegratedresultofthepulsesignalismuchlargerthantheintegralof thedetector snoisecomponent thedisplaywillshowasteadyreadingafter the pulse If the integrated result of the pulse is not much larger the...

Страница 44: ...ndopentheexposurecontrollingshutter iv ThedisplayvaluewillincreaseuntiltheINTGtriggeroutputthresholdis crossed Atthethreshold integrationwillstopandthetriggeroutputwill closetheshutter Thedisplaynowsh...

Страница 45: ...odulewhichdescribesthesetof operatingstatesavailabletothedetector Auserthenselectsamongthe availableoperatingstateswhenusingthemeter Frontpanelcontrolandthe operatingstatesoftheModel2835 Carediscussed...

Страница 46: ...dbytheanalog to digitalconvertersandhavetheunitsof currentorvoltagedependinguponhowtheinputamplifierchainwasconfig ured Thesedigitizedsignalsmovethroughanumberofprocessstepswhich mayormaynotalterthedi...

Страница 47: ...scorrectionadjustsameasurementvaluetoaccountforthedisplayunits selected Whenthedisplayunitsareequaltothedetectorsignalunits i e equaltothenumeratoroftheresponsivityunits Table22 themeasurement valueis...

Страница 48: ...gure 11 Thermopile Signals exhibit 1 to 10 second time constants 3 6 PulseEnergyDetectorSignals ANewportEnergydetectorwillrespondtoasingleradiantenergypulsewith a voltage pulse at its BNC output This...

Страница 49: ...forethepreviousEnergydetectorsignalhasfullydecayed the detectorsignalrisesfromthepresentdecaypointoftheprevioussignal 3 7 Peak to Peak Photodiode DetectorSignals TheModel2835 Callowsonetomakepeak to p...

Страница 50: ...ueoftheSTATSbufferinDCCONTmeasure mentmode Sections2 3 13and2 3 15 Todoso disabletheanalogfilter adjustthesamplerate Section2 4 7andtheSTATSbufferdepth Section 2 3 15 sothattheactualmaximumandminimumv...

Страница 51: ...dosage Section3 6 Input Optical Pulse Energy E Detector s Voltage Pulse Integrate Voltage to find E E V t E V t dt R 1 Figure16 MeasuringLaserPulseEnergywithaThermopile Thermopiles are often used to...

Страница 52: ...manualforsaturationordamagethresholds NISTtraceabilityrequiresthatdetectorsberecalibratedononeyearintervals Asindividualdetectorresponseschangewithtime especiallyintheultravio let recalibrationisneces...

Страница 53: ...eringthedetectorfacewithopaquematerialsuchasapieceofblack rubber Using the human hand to cover the detector is not advised because it emits a significantamountofinfraredradiationandradiatesatemperatur...

Страница 54: ...ngthisproperlyset DetectorSaturation Checkthattheopticalpowerdensityremains orDamage belowthedetector ssaturationordamage threshold NOTE TheModel2835 Cwillindicatewhenadetectorisbeingoperatedaboveits...

Страница 55: ...recommended that when a query is made that the responsetothatquerybereadbeforeothercommandsareissued Whena query is made to the GPIB interface the MAV bit in the status byte should be checked by means...

Страница 56: ...descriptionof string RS 232CCommandTermination WhenacommandisreceivedfromtheRS 232Cport either a CR or a LF is treated as the command terminator GPIBCommandTermination When a command is received from...

Страница 57: ...d rate and echo mode need to be set Valid baud rates are 19 2K 9600 4800 2400 and 1200 The parity data bits and stop bits are fixed at no parity 8 data bits and 1 stop bit RS 232CParameters BaudRate 1...

Страница 58: ...MIT DATA DATA TERM READY SIGNAL GROUND DATA SET READY REQUEST TO SEND CLEAR TO SEND RING IND Figure17 RS 232CableConnections 4 4 1 SettingBaudRateandEchoModeFromTheKeypad The baud rate and echo mode a...

Страница 59: ...mmarizestheIEEE488 1capabilitiessupportedbythe2835 C Table24 Model2835 CIEEE488 1CapabilitiesSummary Description Command LevelofCapability SourceHandshake SH1 completecapability AcceptorHandshake AH1...

Страница 60: ...e Table25 DeviceIndependentStatusCommands Command CommandName CAL CalibrationQuery CLS ClearStatus ERR ErrorQuery ESE EventStatusEnable ESE EventStatusEnableQuery ESR EventStatusRegisterQuery IDN Iden...

Страница 61: ...SSIZE_n DataStoreBufferSizeQuery DSUNITS_n DataStoreUnitsQuery ECHO RS 232EchoModeEnable ECHO RS 232EchoModeEnableQuery EVENT DeviceEventRegisterQuery EVENTEN DeviceEventEnableRegister EVENTEN DeviceE...

Страница 62: ...IGOUTFREQ TriggerOutFrequencySelect TRIGOUTFREQ TriggerOutFrequencyQuery TRIGOUTINTG TriggerOutIntegrationLevelSelect TRIGOUTINTG TriggerOutIntegrationLevelQuery TRIGOUTLVL TriggerOutLevelSelect TRIGO...

Страница 63: ...ng OPCandOPC commands RelatedCommands ESR EVENT IST STB ERR ErrorQuery Syntax ERR Parameters None Function Returns andremoves oldesterrormessagefromtheerrorqueue Theerror message is made up of an erro...

Страница 64: ...e register is set to 0 upon power up See AppendixCforadetaileddescriptionoftheEventStatusRegister ThesignificanceofeachbitintheEventStatusEnableregisterisshown below Operation Complete Mask Request Co...

Страница 65: ...ction with the ServiceRequestEnableregistertogenerateaservicerequest SeeAppendixC foradetailedexplanationoftheEventStatusRegister TheEventStatusRegisterisan8bit bitmappedregister witheachbit signifyin...

Страница 66: ...vidualStatusQuery Syntax IST Parameters None Function ThisqueryreturnsthecurrentstateoftheIEEE488 1 IST localmessage The IST messageisgeneratedbytheparallelpoll status system If any bit is set in the...

Страница 67: ...Parameters None Function Thisqueryprovidesameansofsynchronizingoperationsbetweenthe2835 C andthehost Thiscommandgeneratesaresponsewhenallpendingopera tionshavecompleted Whenallpendingoperationsarecom...

Страница 68: ...erentcondition Thebitsandtheirsignificancearedetailedbelow New Data Available New Valid Data Available Not Used Not Used Message Available Mask Event Status Byte Mask Master Summary Status Mask Error...

Страница 69: ...thiscommandarethoselistedinTable9 Returns None RelatedCommands RST SAV RST Reset Syntax RST Parameters None Function Thissetsthemetertothedefaultconfiguration seeTable9 forthedetector attachedtoit Ita...

Страница 70: ...gisterisan8 bit bitmappedregister witheach bitsignifyingadifferentcondition Thebitsarelistedbelow mostsignificant bitfirst New Data Available CH A New Valid Data Available CH A New Data Available CH B...

Страница 71: ...w Valid Data Available CH A New Data Available CH B New Valid Data Available CH B Message Available Bit Event Status Byte Bit Master Status Summary Bit Error Queue Bit 0 1 2 3 4 5 6 7 StatusByteRegist...

Страница 72: ...s untilallpendingoperationsarecomplete The OPCcommandand OPC query differ from WAI in this area as they allow other commands to be processedwhiletheyarewaitingforpendingoperationstocomplete Once the W...

Страница 73: ...ctoraloneisusedindata calculations Thiscommandwillgenerateanerroriftheattacheddetectordoesnotsup portanattenuator RelatedCommands ATTN_n ATTNSN_n LAMBDA_n LAMBDA_n RESP_n USRCAL_n USRCAL_n USRRESP_n U...

Страница 74: ...or 1 If state is 0 then manual ranging is enabled If state is 1 then auto ranging is enabled Function Thiscommandenablesordisablesautoranging Ifenabledandinacontinu ousacquisitionmode asignalrangeisau...

Страница 75: ...alueshowingwhetherthebargraphisenabledor disabled Note ThebargraphisnotdisplayedwhileineitherGPIBorRS 232 moderegardlessofenabledstatus Returns state state isoftype number whichrepresentstheinteger0if...

Страница 76: ...A or B Parameters None Function Thisqueryreturnsthemodelnumberofthedetectorthatbelongstothe memorymoduleattachedtothespecifiedchannel Returns model model isoftype string inthedoublequoteformat Relate...

Страница 77: ...on Thisqueryreturnstheswitchsettingassumedbythe2835 C Thissetting mustmatchtheactualswitchsettingonthedetectororreadingswillbe inaccurate Returns setting setting isoftype string inthedoublequoteformat...

Страница 78: ...lAand B forchannelB Function This command is used to select the display channel of the meter If the requestedchannelisnotavailablethenthiscommandwillcauseanerror Returns None RelatedCommands CH DISPCH...

Страница 79: ...er Returns status number status isanintegerthatrepresentsthestatusofthereturnedvalue sta tus will be 0 for ok 1 for over range 2 for detector saturated 3 for data error and4forranging number isafloati...

Страница 80: ...x DSCLR_n where n is either A or B Parameters None Function Thiscommandisusedtoclearthedatastorebuffer RelatedCommands DS_n DSCNT_n DSE_n DSE_n DSSIZE_n DSSIZE_n DSUNITS_n DSBUF_n DSBUF_n DSCNT_n Data...

Страница 81: ...nsavalueshowingwhetherornotdatastoringisenabledor disabled Returns state state isoftype number andrepresentsaninteger0 ifdatastoringis disabled or1 ifdatastoringisenabled RelatedCommands DS_n DSCLR_n...

Страница 82: ...astoredinthedatastorebuffer Returns units units isoftype string inthedoublequoteformat Thepossiblevaluesofunitsare A V W W CM dBm dB REL J J CM Erg or E CM dependingonthedetectorandacquisitionmode Rel...

Страница 83: ...egister to 0 TheDeviceEventregisterisAND edwiththeDeviceEventEnableregister If anybitissetintheresultofthisAND ingoperationthenDeviceErrorbit bit3 intheStandardEventStatusregisterwillbeset TheDeviceEv...

Страница 84: ...turated CH A Data Error CH A Not Used Over Range CH B Saturated CH B Data Error CH B Not Used 0 1 2 3 4 5 6 7 DeviceEventRegister RelatedCommands EVENT EVENTEN ESE ESE ESR EVENTEN DeviceEventEnableReg...

Страница 85: ...ger is defined as a falling edge If edge is 1 then the external trigger is defined as arisingedge Function Thiscommanddefineswhethertheexternaltriggerinputonthebackpanelis fallingedgeorrisingedgeactiv...

Страница 86: ...ardfilter TheanalogfilterfeatureonlyappliestoLow PowerdetectorswhennotinP Pmode ForHighPowerandEnergydetectors theanalogfilterfeatureisnotavailable If an attempt is made to enable the analog filter fo...

Страница 87: ...P_n LAMBDA_n LambdaQuery Syntax LAMBDA_n where n is either A or B Parameters None Function Thisqueryreturnsthewavelengththatcorrespondstotheresponsivitycalibra tionpointcurrentlybeingusedbythe2835 Cin...

Страница 88: ...mode INTG specifiesintegrationmode PPSNGL specifiesP Psinglemode PPCONT specifiesP Pcontinuousmode SNGLPULSE specifiessinglepulsemode CONTPULSE specifiescontinuouspulsemode Function Thiscommandsetsthe...

Страница 89: ...eparated by a comma RelatedCommands STB MODE_n MODE_n R_n RWS RWS_n UNITS_n UNITS_n R_n ReadSingleChannelMeasurementQuery Syntax R_n where n is either A or B Parameters None Function Thisqueryreturnst...

Страница 90: ...ction2 3 11 Returns range range isoftype number andrepresentsthegainlevelcurrentlybeing usedforeitherautoormanualranging Seethesectionentitled Electrical Specifications atthebeginningofthismanualforth...

Страница 91: ...ion Returns val val isoftype number andrepresentsafloatingpointnumber Theunits oftheresponsivity val dependsuponthetypeofdetectorfamilyofthe detectorinuse SeeTable22foralistingofresponsivityunitsbydet...

Страница 92: ...ltiplereportsofthesamemeasurement ToensurethatfreshdataisbeingreadtheNDA newdataavailable bitinthe Status Byte can be checked either by issuing a serial poll or by using the STB command Aserialpollisr...

Страница 93: ...at channel and will stay 0 until a new reading is taken Returns status number status isanintegerthatrepresentsthestatusofthereturnedvalue sta tus will be 0 for ok 1 for over range 2 for saturated and...

Страница 94: ...Dswillbeusedfrombothchannelsto acquiresamplesduringDCsingleandDCcontinuousacquisitionmodes This commandaffectstheavailablerangeofDCsamplefrequencies Notethatthe4 096countA Disusedduringallotheracquisi...

Страница 95: ...on Thisqueryreturnsthemeanoraverageofallthevaluesinthestatisticsbuffer ofthespecifiedchannel Returns mean mean isoftype number inexponentnotation RelatedCommands STMAX_n STMIN_n STSDEV_n STMXMN_n STSI...

Страница 96: ...ommands STMAX_n STMEAN_n STMIN_n STMXMN_n STSIZE_n STSIZE_n STSIZE_n StatisticsBufferSizeSelect Syntax STSIZE_n size where n is either A or B Parameters The parameter size is of type number which roun...

Страница 97: ...STOP_n StopSingleChannelAcquisition Syntax STOP_n where n is either A or B Parameters None Function Thiscommandterminatesanyacquisitionofdatacurrentlyinprogressonthe specifiedchannel Ifdataisnotbeing...

Страница 98: ...zerosignalreference value to be used when zeroing is enabled The units of the zero reference defaultstoAmperesforLow PowerdetectorsandVoltsforHigh Powerand Energydetectors RelatedCommands ZERO_n ZERO_...

Страница 99: ...fiesfrequencymode LVL specifieslevelcomparatormode INTG specifiesintegrationlevelmode OFF specifiesoffmode Function Thiscommanddeterminesinwhichmodethetriggeroutoutputontheback panelwilloperate Certai...

Страница 100: ...sedduringtriggerout frequencymode Returns freq freq isoftype number inexponentnotationwithunitsofhertz RelatedCommands TRIGOUT TRIGOUT TRIGOUTFREQ TRIGOUTINTG TRIGOUTINTG TRIGOUTLVL TRIGOUTLVL TRIGOUT...

Страница 101: ...etec tors Function This command is used to set the level used by the trigger out level compara tor mode When the power or energy level is at or above this level the trigger out will go to its active s...

Страница 102: ...UT TRIGOUTFREQ TRIGOUTFREQ TRIGOUTINTG TRIGOUTINTG TRIGOUTLVL TRIGOUTLVL TRIGOUTPOL TRIGOUTPOL TriggerOutPolarityQuery Syntax TRIGOUTPOL Parameters None Function Thisqueryreturnsavaluethatindicateswhe...

Страница 103: ...uisitionmode Function Setstheunitstobeusedforsubsequentmeasurements Oncetheunitshave been set all new readings are given in the new units RelatedCommands MODE_n MODE_n UNITS_n UNITS_n UnitsQuery Synta...

Страница 104: ...erornotusercalibrationisenabled ordisabled Returns state state isoftype number andrepresentsaninteger0 ifusercalibrationis disabled or1 ifusercalibrationisenabled RelatedCommands ATTN_n ATTN_n LAMBDA_...

Страница 105: ...ion This command is used to define a responsivity factor that will be used by the 2835 Cinmeasurementcalculationwhenusercalibrationisenabled RelatedCommands ATTN_n ATTN_n LAMBDA_n LAMBDA_n RESP_n USRC...

Страница 106: ...ery Syntax ZERO_n where n is either A or B Parameters None Function Thisqueryreturnsavalueshowingwhetherornotzeroingisenabledor disabled Returns state state isoftype number andrepresentstheinteger0 if...

Страница 107: ...orreset and indicates on the display whether the self test has been passed If the self testisnotpassedthedisplaywillindicateoneofthefollowingerrormessages CALMODULEA MISSINGORBAD CALMODULEB MISSINGORB...

Страница 108: ...cordconnection Displayisblanked PressDISPkey Displayshows OL Indicatesthatthesignalistoolargefor theselectedsignalrange Selectahigher RANGE or use an attenuator if one is available Displayshows SA Ind...

Страница 109: ...ows CALMODULEA CallNewportCustomerServiceandor CALMODULEB arrangetoreturnthemeterforrepair and CHECKSUMERROR Thedisplayshows BATTERYFAILURE CallNewportCustomerServiceand arrangetoreturnthemeterforbatt...

Страница 110: ...for a period of 1 year After 1 year the unit should be returned to NewportCorporationforrecalibrationandNISTtraceabilityrecertification 7 2 ObtainingService Toobtaininformationconcerningfactoryservice...

Страница 111: ...___________________________________________________________________________________________________ ____________________________________________________________________________________________________...

Страница 112: ...96 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 113: ...thisstringcontainsa doublequote Allcharacterswithinthetwoouterdoublequotesareconsideredpart of the string It is an error if the string does not terminate with a double quote Thestringcannotcontainthe...

Страница 114: ...llfourtypesas number thusanyformatmaybeused 1 number definedasfloatingpoint 2 number definedasbinary 3 number definedasoctal 4 number definedashexadecimal Wherenecessary integersareconvertedtofloating...

Страница 115: ...edbydecimaldigits Examples thenumbersbelowallrepresentthevalue 1 2 1 2 1 2e0 01 2E 00000 120E 2 12e1 thenumbersbelowallrepresentthevalue 1 2 1 2 1 2e 00 0001 2e 0 120e 2 12E1 2 number definedasbinary...

Страница 116: ...alue129 Q201 q0201 q201 4 number definedashexadecimal The2835 Crecognizesunsignedhexadecimalnumbersintherange0to 65535decimal or0toFFFFhexadecimal Hexadecimalnumbersare represented using the digits 0...

Страница 117: ...dinto thecommandsandtheirparameters parsing Incorrectsyntax incorrect parameters andimpropercommandformatwillgeneratetheseerrors Any commanderrorwillcausetheCommandErrorbit bit5 intheStandard Event St...

Страница 118: ...ofstringspace Generatedwhenthesystemparserrunsoutofspaceforcommandsand parameters Itmayoccurifcommandsarenotterminatedcorrectly 192 Outoftokenspace Occurswhenthesystemparserdetectsmorecommandelements...

Страница 119: ...andisthereforenotavailable 288 Commandnotavailable This error will occur if an attempt is made to use a command that is not availableforthedetectorinuse B 3 DeviceErrors DeviceErrorsareassociatedwiths...

Страница 120: ...tatus Byte Bit Service Request Bit Error Queue Bit Request for Service 7 6 5 4 3 2 1 0 OR AND 7 6 5 4 3 2 1 0 OR AND Standard Event Status Register Standard Event Enable Register ESR ESE ESE Status By...

Страница 121: ...ns Theseerrorswillincludesuchconditions as divide by zero or taking the log of a negative number bit 5 Saturated Channel B ManydetectorscontaininformationintheirCALMODULEthatindicates when the detecto...

Страница 122: ...StatusRegisterisdescribedbelow StandardEventStatusRegister bit 7 Power On Not used by the 2835 C bit 6 User Request Not used by the 2835 C bit 5 Command Error A 1 in this bit indicates that the 2835 C...

Страница 123: ...e2835 Cconfiguredtorespondtoit the IST messageiscomparedtothe SBIT sensebit Iftheyarethesame thentheconfigureddatalinewillbedriventrueinresponsetotheparallelpoll Both the S BIT and the data line drive...

Страница 124: ...or and was not taken while ranging It is cleared by the R R_A RWS or RWS_A queries bit 2 New Data Available The New Data Available Channel B NDA bit becomes set when a new reading has been taken on ch...

Страница 125: ...00 Draw header on the screen 1050 GOSUB 3000 Process user input 1060 CLOSE 1 Close the COM file 1070 END End of program 1080 2000 Main Screen Draw the main screen 2010 CLS 2020 LOCATE 1 20 PRINT N E W...

Страница 126: ...or LF not 5100 read continue trying to read input on COM port 5110 WHILE TIMEOUT ERROR 0 AND BUFFER CHR 10 5120 IF LOC 1 0 THEN GOTO 5170 5130 TIMER OFF 5140 BUFFER INPUT 1 1 5150 RS232IN RS232IN BUFF...

Страница 127: ...April 28 1993 End of Header Beginning of program INCLUDE E b45 QBDECL BAS Use your own path here Beginning of program IEEEout DEV5 Use this name or assign a new one CALL IBFIND IEEEout device number...

Страница 128: ...se is in IEEEin Read IEEE String timeout error 0 Initiate to no timeout error poll 0 IEEEin SPACE 255 Initiate IEEEin to 255 spaces ON TIMER 8 GOSUB timeout wait for MAV bit in the status byte to be s...

Страница 129: ...113 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 130: ...rnia has been certified compliant with ISO 9001 by the British Standards Institution Newport Corporation Worldwide Headquarters 1791 Deere Avenue Irvine CA 92606 In U S 800 222 6440 Tel 949 863 3144 F...

Страница 131: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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