Signametrics Corporation SMU2055 Page 5 Operator'S Manual Download | Manualshive

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Signametrics

5.11.1 Measurement and Source Functions....................................................................................58

5.11.2 Range Values .......................................................................................................................58

5.11.3 Measurement Rate parameters ............................................................................................59

6 CALIBRATION .....................................................................................................................................................60

7.0 WARRANTY AND SERVICE...........................................................................................................................62

8.0 ACCESSORIES...................................................................................................................................................62

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Summary of Contents for SMU2055

Page 1: ...Operator s Manual Model SMU2055 6 Digit USB Digital Multimeter Signametrics Corporation April 2010 Compatible with Rev 1 62 Hardware...

Page 2: ...rom of the use of or inability to use Signametrics products even if Signametrics Corporation has been advised of the possibility of such damages Because some States do not allow the exclusion or limit...

Page 3: ...MM INPUT TERMINALS 15 3 6 DMM REAR PANEL 15 3 7 STARTING THE CONTROL PANEL 16 3 8 USING THE CONTROL PANEL 16 4 0 DMM OPERATION AND MEASUREMENT TUTORIAL 18 4 1 VOLTAGE MEASUREMENT 18 4 1 1 DC Voltage M...

Page 4: ...etSupplyV 39 DMMGetStoredReading 39 DMMGetType 40 DMMGetVer 40 DMMInit 41 DMMIsAutoRange 41 DMMIsInitialized 42 DMMIsRelative 42 DMMOpenUSB 43 DMMRead 43 DMMReadNorm 44 DMMReadNsamples 45 DMMReadStr 4...

Page 5: ...5 Signametrics 5 11 1 Measurement and Source Functions 58 5 11 2 Range Values 58 5 11 3 Measurement Rate parameters 59 6 CALIBRATION 60 7 0 WARRANTY AND SERVICE 62 8 0 ACCESSORIES 62...

Page 6: ...crews are required for safety reasons Warning Check to see that all measurement wires are separated from the USB communication cable If measurement wires come into contact with the USB cable this may...

Page 7: ...xpressed by the corresponding resolution for the range 2 1 DC Voltage Measurement Input Characteristics Input Resistance 240 mV 2 4 V Ranges 10 G with typical leakage of 50pA Input Resistance 24 V 240...

Page 8: ...007 350 m 240 k 240 0000 k 100 m 10 A 0 008 3 2 0 012 4 0 02 5 2 4 M 2 400000 M 1 1 A 0 02 40 0 03 50 0 04 70 24 M 24 0000 M 100 100 nA 0 2 400 0 3 500 0 4 600 1 With reading rate set to 2 sec and wi...

Page 9: ...5 220 V 0 4 0 35 mV 240 mV 50 kHz 100 kHz 2 0 6 mV 2 1 0 8 mV 2 2 1 mV 10 Hz 20 Hz 3 2 mV 3 3 2 2 mV 3 5 2 5 mV 20 Hz 47 Hz 0 45 1 3 mV 0 47 1 5 mV 0 5 1 7 mV 47 Hz 10 kHz 0 07 1 mV 0 075 1 1 mV 0 08...

Page 10: ...3 A 0 12 4 A 2 4 mA 1 kHz 10 kHz 0 12 4 A 0 14 4 A 0 22 4 A 10 Hz 20 Hz 1 8 30 A 2 6 30 A 2 8 30 A 20 Hz 47 Hz 0 6 30 A 0 9 30 A 1 0 30 A 47 Hz 1 kHz 0 07 10 A 0 15 20 A 0 16 30 A 24 mA 1 kHz 10 kHz 0...

Page 11: ...l in the Control Panel These products are capable of continuous measurement as well as data transfer rates of up to 250 readings per second rps In general to achieve 6 1 2 Digits of resolution the rat...

Page 12: ...Mode input from Voltage HI or LO relative to Earth Ground Safety Designed to IEC 1010 1 Installation Category II Calibration Calibrations are performed by Signametrics in a computer at 23 C internal t...

Page 13: ...0 6 ft USB 2 0 AM BM cable SMU CBL6ft 3 ft USB 2 0 AM BM cable SMU CBL3ft 10 ft USB 2 0 AM BM cable SMU CBL10ft DMM Probe kit SM PRK 38 50 Deluxe Probe kit SM PRD 95 00 Shielded SMT Tweezers Probes SM...

Page 14: ...are sure you wish to install this driver Continue the installation Afterwards you should now see a screen that indicates the drivers have been sucsessfully installed on this computer 3 3 Installing th...

Page 15: ...est When in 4 Wire resistance measurement mode it serves as the positive terminal of the current source The maximum input across V 2 and V 2 is 240 VDC or 240 VAC V 2 This is the negative terminal for...

Page 16: ...tes you may have to hold down the left mouse button longer than usual for the program to acknowledge the mouse click Note The SMU2055 front panelstarts up in DCV and 240 V range If the DMM is operated...

Page 17: ...Hz of operation when setting it as certain rates have better noise rejection at either 50 or 60 Hz See Specifications for details When measuring VAC values there is no point setting the Rate to a val...

Page 18: ...will read whatever charge is associated with the signal conditioning of the DMM As this electrical charge accumulates the DMM will change ranges 4 1 2 True RMS AC Voltage Measurements ACV is specified...

Page 19: ...F errors See section 4 3 5 for details 4 3 1 2 Wire Ohm Measurements In the 2 Wire resistance measurement the DMM sources current and measure resuting voltage The DMM measure Resistance using six rang...

Page 20: ...d set relative to clear the DMM offset prior to the measurement To calculate worst case error count all relay contacts which are in series with the measurement V V terminals in 2 Wire and I I terminal...

Page 21: ...first time the DMM is used It may contain calibration records for several DMM s SMU2060 LIB The Windows import library Install in a directory pointed to by your LIB environment variable SMU2060 DLL Th...

Page 22: ...Set With C or Similar Software The SMU2055 uses the SMU2060 driver package Install the SMU2060 H and USBMMUser H header file in a directory that will be searched by your C C compiler for header files...

Page 23: ...nd SimplePanel frm It has a panel that contains two objects a Text Box to display the DMM readings and a Command Button that acts as a reading trigger Global bas module file contents Option Explicit D...

Page 24: ...OHMreading short ret i DMMSetFunctions 0 OHMS2W DMMSetAutoRange 0 TRUE to settle auto range and function changes ignore three readings for i 0 i 4 i ret DMMReadNorm 0 OHMreading return ret function m...

Page 25: ...a quick internal cal Comments This performs an internal DMM calibration and is the same as the S Cal command in the VB Control Panel It is not related to the external calibration represented in the S...

Page 26: ...M DMMs are numbered starting with zero Return Value Integer error code Value Meaning DMM_OKAY Operation successfully completed Negative Value Error code Example int status DMMClearMinMax 0 DMMCloseUSB...

Page 27: ...ErrString Description Return the string describing the warning or error code include SMU2060 H int DMMErrString int iErrorCode LPSTR lpszError int iBuffLength Remarks This function returns a string co...

Page 28: ...ocation of a DMM in the PCI system tree This function actually scans the hardware rather then look up the information in the registry Parameter Type Description nDmm int Identifies the DMM DMMs are nu...

Page 29: ...e Example char cBuf 64 int status status DMMGetCalDate 0 cBuf DMMGetdB Description Get dB deviation from the reading at the time relative was activated include SMU2060 H int DMMGetdB int nDmm double l...

Page 30: ...the location of the DMM in the USB structure include SMU2060 h int DMMGetDevLocation int nDmm LPCSTR lpszLoc Remarks This service function retrieves the location of the USB DMM specified by nDmm in th...

Page 31: ...Error code Example double error int status DMMGetDeviation 0 error DMMGetDeviatStr Description Get percent deviation from the reading at the time relative was activated include SMU2060 H int DMMGetDe...

Page 32: ...s or the string length is OK Value Meaning DMM_OKAY Valid return Negative Value Error code Example char cBuf 64 int status DMMGetDiffMnMxStr 0 cBuf DMMGetFunction Description Get DMM function code inc...

Page 33: ...This function returns the hardware version A returned value of 0 corresponds to Rev_ 1 corresponds to Rev_A 2 to Rev_B etc Parameter Type Description nDmm int Identifies the DMM DMMs are numbered star...

Page 34: ...ID code include SMU2060 H int DMMGetID int nDmm Remarks This function returns the DMM identification code Each DMM has a unique ID code that must match the calibration file card_ID field in SM60CAL D...

Page 35: ...integer where the year is stored Return Value Integer error code or Value Meaning DMM_OKAY Operation was successful DMM_E_DMM Invalid DMM number Example int month day year status status DMMGetManDate...

Page 36: ...DMMs are numbered starting with zero lpszReading LPSTR Points to a buffer at least 64 characters long to hold the result Return Value The return value is one of the following constants or the string l...

Page 37: ...more details Parameter Type Description nDmm int Identifies the DMM DMMs are numbered starting with zero lpszReading LPSTR Points to a buffer at least 64 characters long to hold the result Return Val...

Page 38: ...west range Parameter Type Description nDmm int Identifies the DMM DMMs are numbered starting with zero Return Value Integer value corresponding to the currently set DMM range or an error code Value Me...

Page 39: ...his voltage is stored at a double precision location pointed to by lpdVoltage Parameter Type Description nDmm int Identifies the DMM DMMs are numbered starting with zero lpdVp tage LPSTD Points to a d...

Page 40: ...ption Get the type of the DMM include SMU2060 H int DMMGetType int nDmm Remarks This function returns a value identifying the DMM model Parameter Type Description nDmm int Identifies the DMM DMMs are...

Page 41: ...ds the appropriate calibration record for the respective DMM from the file specified by lpszCa followed by self calibration If the calibration record is outdated it opens a warning window If an error...

Page 42: ...lized int nDmm Remarks This function returns the status of the DMM If TRUE the DMM has been initialized and is active If FALSE the DMM is not initialized To use the DMM it must be initialized using DM...

Page 43: ...which open the USB bus for the SMU2055 Not for user application include SMU2060 H int DMMOpenUSB int nDmm Remarks This function is limited for servicing the DMM It has no use in normal DMM operation...

Page 44: ...e numbered starting with zero lpdResult double Points to the location to hold the next reading Return Value The return value is one of the following constants Value Meaning DMM_OKAY DMM initialized su...

Page 45: ...gative Full Scale or overrange Negative Value Error code DMM_OKAY No error Example int status DMMReadNsamples 0 100 DMMReadStr Description Return the next reading from the DMM formatted for printing i...

Page 46: ...starting with zero bAuto int Determines whether or not autoranging is done The value TRUE 1 enables autoranging FALSE 0 disables it Return Value The return value is one of the following constants Val...

Page 47: ...e used by the DMM for the present function The table of values is defined by the _240mV _2400uA etc In general the lowest range is 0 next is 1 etc Each function has a pre defined number of ranges as s...

Page 48: ...E_250 Some of the rates have specific power line rejection as indicated in the specification part of this manual See DMM Parameter Type Description nDmm int Identifies the DMM DMMs are numbered starti...

Page 49: ...return value is one of the following constants Value Meaning DMM_OKAY DMM mode changed successfully Negative Value Error code Example status DMMSetRelative 0 TRUE DMMTerminate Description Terminate D...

Page 50: ...ning DMM_OKAY Valid return Negative Value Error code Example int err Err AC_zero 0 FALSE disable AC Zero DMMLoadCalFile Description Reload calibration record from file include SMU2060 H int DMMLoadCal...

Page 51: ...sets the currently set gain Sets the gain of the the currently selected function and range The gain is returned as double precision floating point number Gaint This function is useful while performai...

Page 52: ...ouble gain GetGain 0 gain read gain GetOffset Description Retrieve currently set gain include SMU2060 H include UseroDMM h int GetOffset int nDmm doulbe lpdOffset Remarks This function returns the cur...

Page 53: ...d 31 Return Value Integer error code Value Meaning DMM_OKAY Operation successfully completed Negative Value Error code Example SetFcomp 0 12 set the frequency compensation SetOffset Description Set th...

Page 54: ...be active or inactive Allowed values are TRUE of FALSE Return Value The return value is one of the following constants Value Meaning DMM_OKAY Valid return Negative Value Error code Example int err Err...

Page 55: ...completed Negative Value Error code Example int i GrdXingTest 0 1 3 Test Guarded controller WrCalFileToStore Description Transfer the contents of a cal file to the on board cal store include SMU2060...

Page 56: ...ode int Sets the file creation mode lpszCal LPCSTR Points to the name of the file containing the calibration constants for the DMM Calibration information is normally read from the file named SM60CAL...

Page 57: ...pe in EEProm ERROR_READBYTES 18 unexpected number of bytes read ERROR_WRITEBYTES 19 unexpected number of bytes written ERROR_DTYPE 20 invalid input bad DMM Type parameter ERROR_READ_EEPROM 21 invalid...

Page 58: ..._VER 126 MCU Firmwhare does not support operation 5 11 Parameter List The following definitions are from the DMMUser H file 5 11 1 Measurement and Source Functions The following list contains values t...

Page 59: ...s Use DMMSetRate and DMMGetRate to set and retrieve the currently set measurement rate define RATE_p5 0 0 5rps with 50 60Hz rejection define RATE_1 1 1rps with 60Hz line rejection define RATE_2 2 2rps...

Page 60: ...ce holder vac VAC 1st line DC offset Than offset gain and freq each range240mV to 330V 0 Place holder 0 84 1 015461 23 0 0043 1 0256 23 0 0 1 02205 0 0 0 1 031386 0 0 1 0 0 Place holder idc IDC 240nA...

Page 61: ...2 3rd of the top of each range Calibration of your SM SMU2055 60 64 is best performed using calibration software available from Signametrics When using multiple DMMs in a single chassis the SM60CAL D...

Page 62: ...cts at customer s expense Within the USA Signametrics will ship serviced or replaced unit at Signametrics expense Warranty extensions are available at the time of purchase for terms up to 36 months in...

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