Signametrics Corporation SM4022 Operator's Manual

Operator's Manual Model SM2060 7½ Digit Digital PCI Multimeter Model SMX2060 7½ Digit Digital PXI Multimeter Model SM2064 7½ Digit

Signametrics 10 2.0 Specifications The following specifications are based on both, verification

Signametrics 100 aged, DMMFrequencyStr() for more details. In cases where the of frequency being

101 Signametrics ent SM2060 ; SM2064 ; Description eturn a reading which is the result of DM

Signametrics 102 marks To use this function the DMM must be in ACV measurement function, and a

103 Signametrics Description Return ACV signal’s peak-to-peak value. #include "SM2 kToPe

Signametrics 104 ust be in ACV measurement function, nd a valid range must be selected for this

105 Signametrics DMMReadTotalizer SM2060  SMDescription Read the totalized value accumulated

Signametrics 106 DMMReady SM2060 ; SM2064 ;Description Remarks nd FALSE (0) otherwise. Once a

107 Signametrics nDmm ldDelay Return Value Valueint Identifies the DMM. DMMs are numbered s

Signametrics 108 Description Set the ACV source output level and frequency. #include "SM20

109 Signametrics Parameter Type/DescriptionnDmm t Identifies the DMM. starting with zero. iA

11 Signametrics 2.3 Resistance Measurements 2.3.1 2-wire

Signametrics 110 Remarks Setup the SM2060 for external hardware trigger operation. Following r

111 Signametrics emarks This function should be used carefully since it modifies the capacitan

Signametrics 112 uccessfully terminated shold SM2060  SM2064 ; Description et the Threshold

113 Signametrics removing the requirement to make multiple frequency measurements in order to a

Signametrics 114 Parameter Type/DescriptionnDmm MM. DMMs are numbered starting with zero. e Retu

115 Signametrics MS SM2060 ; SM2064 ; Description et the DMM RMS filter response time. . wid

Signametrics 116 tive Value DMM_Elid DMM function. Example status = DMMSetFuncRange(0, VDC_3V);

117 Signametrics nDmm int Identifies the DMM. DMMs are numbered starting with zero. lpdFreq d

Signametrics 118 both is 0, which disconnects both the input and output PXI trigger connections

119 Signametrics etReadSM2060 ; SM2064 ; Description time parameter. Remarks where precise c

Signametrics 12 2.3.4 Extended Resistance Measurements (SM2064) Characteristics • Test Voltage

Signametrics 120 dRef double Reference value. Return Value Integer error code.. ValueMeaningDM

121 Signametrics Description Set the DMM relative reading mode for the present function. #incl

Signametrics 122 DMM_Negativ Example DMMSetSensSM2060 ; SM2064 ;Description int DMMSetSenso

123 Signametrics Description int DMMSetSourceMode(int nDmm, int iMode) Remarks This Secondary

Signametrics 124 one of the following constants. Return Value The return value isValue Meaning

125 Signametrics iTempUint Temperature units can be either DEG_F for °F, or DEG_C for °C. °C.

Signametrics 126 Remarks Setup for external hardware trigger operation. Following reception of

127 Signametrics the on-board microcontroller’s resources and must be turned off when not in us

Signametrics 128 Return Value Integer error code. ValueMeaningDMM_OKAY OpeNegative Value Error

129 Signametrics scription Terminate DMM operation (DLL) int DMMTerminate(int nDmm) Remarks

13 Signametrics AC Volts Accuracy with Fast RMS disabled (default). With Fast RMS disabled, se

Signametrics 130 NIT DMM is uninitialized. Must be initialize prior to using any function. TRIG

131 Signametrics re trigger operation. Following reception of this ommand the DMM enters a wait

Signametrics 132 olarity of the pulse to be measured. 1 indicates positive, 0 negative. lpszWidt

133 Signametrics 5.7 Calibration Service Commands AC_zero scription e "SM206032.h"

Signametrics 134 Parameter Type/DescriptionnDmm int Identifies the DMM. DMMs are numbered star

135 Signametrics eveudefun e offset associated with the ntly hould be the same as that set in

Signametrics 136 ted. M2060 ; SM2064 ; escription Set the the offset correction factor nclude &

137 Signametrics escription Read A/D offset counts. int Read_ADcounts(int nDmm) or retrieving

Signametrics 138 the specified test as indicated by iTest. Repeat it for iNumber times. This 5

139 Signametrics FRAME -17 // Communication Frame error CV_FIFO -18 // Com receive Fifo

Signametrics 14 Fast RMS settles to rated accuracy within 50ms.

Signametrics 140 r use by qualified personnel only. To avoid electric shock, do not perform lab

141 Signametrics ts s given in Section 2. The test is commended as an acceptance test when the

Signametrics 142 6.3 Resistance Test, 2-wire The following procedure may be used to verify the a

143 Signametrics 6.4 Resistance Test, 4-wire The following procedure may be used to verify the

Signametrics 144 1. I u at the comp 2. Appl tages to the V, Ω + & - terminals. Check to se

145 Signametrics ct the DCI function and range. Allow the DMM to settle for second, and perfo

Signametrics 146 est rent Test are at 400Hz Ste Maximum reading 6.7 AC Current TThe following p

147 Signametrics een on for at least one-half hour, with the covers on, before conducting this

Signametrics 148 64 only) st Cal with the DMM. onnect the DMM to the test inductor you wish to m

149 Signametrics 6.9 Frequency Counter Test ( SM2064 only) The following procedure may be used

15 Signametrics ACV Range Lowest specified input voltage (Vp-p) Full Scale reading (Vp-p)Resolu

Signametrics 150 6.10 Calibration Each SM2060/64 DMM uses its own SM60CAL.DAT calibration record

151 Signametrics The SM60CAL.DAT file is created by performing external calibration. The gene

Signametrics 152 7.0 Warranty and Service The SM2060, SM2064, SMX2060 and SMX2064 are warranted

Signametrics 16 Input Characteristics • Crest Factor 4 at Full Scale, increasing to 10 at Lowes

17 Signametrics • Ro: Variable from 10 Ω to 10 kΩ • Measurement Method: 4-Wire • Temperature

Signametrics 18 Range Full Scale Reading Resolution One Year 23°C ± 5°C 1,200 pF 1,199.9

19 Signametrics 2.9.3 Capacitance, In-Circuit Method (SM2064) • Adjustable Peak Voltages Stim

Signametrics 2 CAUTION In no event shall Signametrics or its Representatives are l

Signametrics 20 2.10.2 Frequency and Period Measurement ACV Mode • Input Impedance 1 MΩ with &

21 Signametrics 2.10.5 Totalizer • Active edge polarity: Positive or negative transition • M

Signametrics 22 Interval(s) / max meas. rate(Hz) (Hz) Aperture 60Hz 50Hz 400Hz 5.1200s [1] √

The SM2060 has are 26 A/D apertures available, ranging from 5 Seconds to 625uSec. The following table contains all available measurement apertures co

Signametrics 24 Current can be paralleled with multiple SMt in series with multiple SMX2064s C

25 Signametrics n r onds. It can be erformed by calling Windows command DMMCal(), or selecting

Signametrics 26 v SM2060 series DMM’s, which can be purchased directly from e some of the access

27 Signametrics 3.0 Getting Started After unpacking the DMM, please inspect for any shipping d

3.4 DMM Input Connectors Before using the DMM, please take a few moments and review this section to understand where the voltage, current, or resistan

TRIG / GUARD Both the Trigger and Guard functions are at the DIN-7 connector. This group of pins includes the positive and negative hardware trigger

3 Signametrics TABLE OF CONTENTS 1.0 INTRODUCTION...

Signametrics 30 is s a infinite input impedance of the 2.4V DC range. On these ranges, an ope

31 Signametrics “Specifications” for details.). When measuring RMS values, there is no point se

Signametrics 32 .0 DMM Operation and Measurement Tutorial .1 Voltage Measurement ve Making Vo

Figure 4-1. Make Voltage ACV measurements with the source ground attached to the SM2060 V,Ω - to minimize “Common Mode” measurement problems. 2064)

Signametrics 34 r low currents from such circuits as Current utput DACs of such devices as heart

35 Signametrics nt sources, with the DMM displaying the sistance value. Most measurements can b

Figure 4-3. The I- and I+ sense leads should be closest to the body of the resistor when making 4WΩ measurements. 4.3.3 Using Offset Ohms function (

Figure 4-4. 6-wire guarded in-circuit ohms measurement configuration. r, or R. Due to e current for the selected range, and Rx is the resistance be

Signametrics 38 Add e testing high value resistive elements such as cables, transformers, and ot

39 Signametrics 1 uAΩ 10 00 Ω 3.3 MΩ 1 Ω 1 10 Ω 33 MΩ 100 nA 0 Ω 10 kΩ 100 10 0 Ω 1 Ω 330 M

Signametrics 4 4.1 VOLTAGE MEASUREMENT...

Signametrics 40 eadStr() or DMMReadNorm() DMMSetDCVSource(). Leakage current is read using DMMRe

Figure 4-11. Anatomy of a measurement Power Line Rejection Command/Response mode min. Read Interval(s) / max meas. rate(Hz) H/W Trigger mode min

Signametrics 42 Power Line Rejection Command/Response mode H/W Trigger mode min. Read min. Rea

43 Signametrics s s are stimulate a dV/dt across the capacitor. Use short high quality shielde

Signametrics 44 ) function, when making a measurement the DMM uses a default voltage of 0.45Vpk

45 Signametrics filled, there will be some NULL readings in the buffer, followed by pre-trigge

Signametrics 46 4.13.3.1 Burst Read Operation In response to the DMMBurstRead(nDmm, iSettle, iSa

47 Signametrics 4.13.3.4 Triggered Burst Capture This function is similar to the Burst Read ope

Signametrics 48 In Figure 4-13, the DMM is set to 2.4 ACV range, while the input is a 10% duty-c

49 Signametrics he Threshold DAC to 186.7 V. This value is the peak value of The Threshold DAC

5 Signametrics 5.5 USING THE SM2060 DLL WITH LABWINDOWS/CVI®...

Figure 4-15. Sour ge. Monitoring of the output in closed loop operation. 2 AC Source e sou lated. It has two modes of operation: fast settling or

F51 Signametrics igure 4-16. Generating AC voltage. Monitoring of the output in closed loop o

o an SM2060 class of DMM’s. Figure 4-16. Trig connection t4.16.2 Mor two wire mea e SM2060 DM the scanner, or to both, the A-us and C-Bus for 4-Wi

53 Signametrics hile DMMReady(nDmm) = NO ‘ wait for the DMM to indicate completion while(

Signametrics 54 trigger input from the DIN-7 connector and ut make sure the trigger input is Di

55 Signametrics e package provided with the SM2060 series DMM is a 32bit DLL based modules, whi

Signametrics 56 File DescriptionSM2064.exe Visual Basic DMM control panel executable rt.dll Sy

57 Signametrics During initialization (DMMInit()), the driver reads various parameters such as

Signametrics 58 Sets Function to VDC, Range to 24V, Aperture set to 160ms. Display five measure

59 Signametrics The freq and per check boxes are context sensitive and appear in ACV and ACI. W

Signametrics 6 DMMReadCJTemp ...

Signametrics 60 After initialization, the Wi• Auto ranging: Of• Function: DC Vol• Range: 240V

61 Signametrics int DMMArmAnalogTrigger(int nDmm, int iPostSamples, double *dThresh) emarks Thi

Signametrics 62 ,80,1.5); hile( ! DMMReady(0)); i++) SM2064 ; Description clude "SMX

63 Signametrics e Value Example double Buff DMMArmTrigger(0,70); ady(0)); for(i=0; i < 7

Signametrics 64 DMMBurstBuffRead(0, 4, 50); // 4 settling readings for each // measurement, and

65 Signametrics tRead(0, 10, 250); // settle 10 reads., 250 samples for(i=0; i < 250 ; i++

Signametrics 66 Description ternally calibrate the DMM. include "SM206032.h" DMMCa

67 Signametrics iCycles int The number of times the relay contact is shaken. 1 to 1000. nDmm in

Signametrics 68 Return Value Integer error code.. ValueMeaningDMM_Ove Value ErrorExample a

69 Signametrics Remarks Delay of dTime seconds. dTime must be a positive double number between

7 Signametrics 5.8 MAINTANANCE COMMANDS...

Signametrics 70 Parameter Type/DescriptionnDmm int Identifies the DMM. DMMs are numbered st

71 Signametrics ParameterType/DescriptionnDmm int Identifies the DMM. DMMs are numbered star

Signametrics 72 eterParam Type/DescriptioniErrorCode int int available length of the strin

73 Signametrics alue Example char cBuf[6int status; status = DM DMMGetACCapsR 2064 ;Description

Signametrics 74 lpdApertReturn Value Valueure double * Pointer where the aperture is saved t

75 Signametrics nDmm int Identifies the DMM. DMMs are numbered starting with zero. bus numbe

Signametrics 76 Value Meaningany positive number Length of the date string Negative number Error

77 Signametrics Parameter Type/DescriptionnDmm lpszDB east 64 characters long) to hold the resu

Signametrics 78 measurements or DC evaluation, or percent variation of a device under test over

79 Signametrics Description Get DMM range code. #include "SM206032.h"

1.0 Introduction Congratulations! You have purchased a Personal Computer (PC) Plug-in instrument with analog and systems performance that rivals the

Signametrics 80 ParameDescription Get DMM firmware version. #include "SM206032.h" i

81 Signametrics ID(int nDmm) MM identification code. Each DMM has a unique ID code n file card

Signametrics 82 DMM_OKAY DMM_E_ Invalid DMM number. h, &day,

83 Signametrics lpszReading LPSTR Points to a buffer (at least 64 characters long) to hold th

Signametrics 84 Description Returns the minimum as a formatted string. #include "SM206032

85 Signametrics etReadSM2060 ; SM2064 ; DMMGetR mm, double *lpdRI) Remarks This function re

Signametrics 86 DMMGetSourceFreq(0, &f); DMMGetTCTyn clude "SM206032.h" clude &

87 Signametrics ValueReturn Value DMM type Integer or an error code. MeaningiNullCount The n

Signametrics 88 entifies the DMM. DMMs are numbered starting with zero. lpfResulhich holds the v

89 Signametrics ParameDescription Get the status of the autorange flag. #include "SM2060

9 Signametrics 1.2 Minimum Requirements The SM2060 series of system DMM’s are precision plug-in

Signametrics 90 Description Get the status of the Relative flag. clude "SM2 int DMMIsRel

91 Signametrics nDmm) Remarks the selected range of the AC Capacitance measurement path and

Signametrics 92 Negativ Example DMMPeriodStSM2060  SM2064 ;Description clude "SM2int DMM

93 Signametrics Description Tests the DMM for ready status, and returns the next floating-poin

Signametrics 94 Parame terType/DescriptionnDmm Return Value Valueint Identifies the DMM. DMMs

95 Signametrics Description Initialize a DMM without tests. #include "SMX2060.h" i

Signametrics 96 d ing nction for base units read function, or DMMReadStr() to return the result

97 Signametrics Value MeaningDMM_OKAY Operation successfully completed. NegativExample double r

Signametrics 98 ires this is MMReadCJTemp() function reads the sensor output voltage (0 to +/-3.

99 Signametrics Value MeaningDMM_OKAY Operation successfully completed. Negative Value Error co