Signametrics SM2040 Series Precision Instruments for the PC 6-1/2 Digit PCI Multimeters SM2040 6-1/2 Digit Digital Multimeter SM2042 6-1/2 Digit Multi- Function Digital Multimeter SM2044 6-1/2 LCR Sourcing Quality you can measure Digital Multimeter Uncompromising Performance Hardware features The SM2040 provides a combination of resolution, accuracy and speed that surpasses rivals. A 6-1/2 digit display, 0.0045% basic DCV accuracy and 1,000 rps assure you of measurements that DC Voltage and Current are accurate, fast and repeatable. The SM2042 adds a comprehensive repertoire of measurements, and the SM2044 adds more measurements and source functions, packed into a half-size PCI plug-AC Voltage and Current in module. Both measurements and sourcing functions are isolated from the PC and are therefore  True RMS truly differential. An on board controller responds to high level commands from the PC,  Peak-to-Peak minimizing overhead.  Crest Factor  Median All in one Resistance  2-wire The SM2040 series is designed as a universal, multifunction DMM. Measurements commonly  4-wire associated with “high-end” system DMMs are standard features with the SM2040 family.  6-wire Guarded Meas. Functions such as 4-wire and 6-wire guarded resistance measurements, inductance  Extended Meas. to 1GΩ and capacitance, leakage and temperature, RMS and peak-to-peak, frequency and timing, sourcing RTD Temperature Meas. of voltage and current, and much more. The SM2044 is best suited for applications demanding precision sources with simultaneous measurements such as in Parametric testing, while the Diode V/I Characterization SM2040 fits the bill where basic DMM functions are required. Capacitance Measurement Inductance Measurement The SM2040 series’ unique “Relative” function allows you to remove lead resistance or other fixed offsets in your measurement and to perform percent deviation and dB measurements. AnLeakage Measurement external, level controlled trigger can be used for capturing single-shot events, and store up to 64 Time Measurements measurements on board.  Variable Threashold  Frequency and Period  Duty Cycle  Pulse Width  Totalizer, Event counter Source & Measure Functions  DC Voltage  AC Voltage  DC Current Internal Temperature Environment Friendly  Low Power & Heat  Minimal Materials Usage Signametrics th Precision Instruments for the PC 6073 50 Avenue N.E., Seattle, WA 98115 Phone (206) 524-4074, Fax (206) 525-8578 www.signametrics.com Voltage, Current and Resistance Easy to install and use Accuracy 90 Days Accuracy 1 Year DC Volt Range Full Scale Reading Resolution 23°C ± 5°C [1] 23°C ± 5°C [1] The SM2040 series supports Plug-and-Play [1] Accuracy is % of reading + 330mV 330.0000 mV 100 nV 0.004 + 5.5 µV 0.007 + 8 µV Volts. operating systems. Once installed, your 3.3 V 3.300000 V 1 µV 0.0025 + 12 µV 0.0045 + 17 µV computer will automatically detect and 33 V 33.00000 V 10 µV 0.004 + 280 µV 0.007 + 330 µV allocate I/O space, without having to set 330 V 330.0000 V 100 µV 0.005 + 1.2 mV 0.008 + 1.5 mV address switches. 3.3 mA 3.30000 mA 10 nA 0.07 + 350 nA 0.1 + 400 nA DC Current 33 mA 33.0000 mA 100 nA 0.06 + 2 µA 0.1 + 3 µA Add to this the intuitive Graphical User [1] Accuracy is % of reading + 330 mA 330.000 mA 1 µA 0.055 + 40 µA 0.075 + 60 µA Amps. 330nA range available. Interface (GUI), and you are up and 2.5A 2.50000 A 10 µA 0.6 + 200 µA 0.65 + 350 µA making measurements within minutes of Full Scale Accuracy 90 Days Accuracy 1 Year AC Volts (RMS) installation. Just point and click to perform Range Resolution Frequency Reading 23°C ± 5°C [1] 23°C ± 5°C [1] a wide range of complex measurements. [1] Accuracy is % of reading + 330 mV 330.000 mV 100 nV 10 Hz - 20 Hz 3.1 + 380 µV 3.2 + 430 µV Volts. (Signal >5 mV) 6 20 Hz - 47 Hz 0.93 + 170 µV 0.95 + 200 µV [2] Signal is limited to 8x10 Volt Hz Product.. 47 Hz - 10 kHz 0.14 + 110 µV 0.15 + 120 µV To further increase productivity and to 10 kHz - 50 kHz 0.6 + 200 µV 0.63 + 230 µV automate the measurement process, the 50 kHz - 100 kHz 5.4 + 370 µV 5.6 + 400 µV SM2040 series examples are provided with 3.3 V 3.300000 V 1 µV 10 Hz - 20 Hz 3.1 + 2.2 mV 3.2 + 2.5 mV comprehensive Windows98/95/Me/2000 and (Signal >10 mV) 20 Hz - 47 Hz 0.96 + 1.5 mV 1.0 + 1.7 mV NT4.0 support for both textual programming 47 Hz - 10 kHz 0.055 + 1.1 mV 0.065 + 1.2 mV 10 kHz - 50 kHz 0.65 + 1.3 mV 0.7 + 1.5 mV languages such as “C”, ATEasy, TestPoint, 50 kHz - 100 kHz 5.2 + 1.7 mV 5.3 + 2 mV LabWindows/CVI, MatLab, Delphi etc. 33 V 33.00000 V 10 µV 10 Hz - 20 Hz 3.1 + 16 mV 3.3 + 20 mV and graphical environments such as Visual- (Signal>100 mV) 20 Hz - 47 Hz 0.96 + 14 mV 1.0 + 16 mV Basic, LabView (w/opt. driver), HPVee etc. 47 Hz - 10 kHz 0.065 + 11 mV 0.073 + 13 mV 10 kHz - 50 kHz 0.33 + 21 mV 0.35 + 25 mV 50 kHz - 100 kHz 2.2 + 35 mV 2.4 + 40 mV 6-wire Guarded Resistance 250 V [2] 250.0000 V 100 µV 10 Hz - 20 Hz 3.1 + 160 mV 3.3 + 200 mV (Signal >1 V) 20 Hz - 47 Hz 0.96 + 130 mV 1.0 + 150 mV Measurement (SM2044) 47 Hz - 10 kHz 0.045 + 110 mV 0.06 + 130 mV 10 kHz - 50 kHz 0.4 + 170 mV 0.45 + 200 mV The SM2044 provides a guarded 6-wire 50 kHz - 100 kHz 2.8 + 240 mV 3.2 + 300 mV resistance measurement method. It is used 3.3 mA 3.30000 mA 1 nA 10 Hz - 20 Hz 2.7 + 4 µA [1] 2.9 + 4 µA [1] to make resistance measurements when the AC Current (RMS) (Signal >50 uA) 20 Hz - 47 Hz 0.9 + 4 µA 1.0 + 4 µA resistor-under-test has other shunting paths [1]Accuracy is % of reading + 47 Hz - 1 kHz 0.08 + 3 µA 0.12 + 4 µA which can cause inaccurate readings. This Amps. 1 kHz - 10 kHz 0.14 + 4 µA 0.22 + 4 µA method isolates the resistor-under-test by 33 mA 33.0000 mA 10 nA 10 Hz - 20 Hz 2.6 + 30 µA 2.8 + 30 µA (Signal>500 uA) maintaining a guard voltage at a user 20 Hz - 47 Hz 0.9 + 30 µA 1.0 + 30 µA defined node. Applications include in 47 Hz - 1 kHz 0.15 + 20 µA 0.16 + 30 µA 1 kHz - 10 kHz 0.3 + 40 µA 0.4 + 40 µA circuit test, Resistor Networks, etc. 330 mA 330.000 mA 100 nA 10 Hz - 20 Hz 2.7 + 400 µA 2.8 + 400 µA (Signal >5 mA) HI_V 20 Hz - 47 Hz 0.9 + 400 µA 1.0 + 400 µA SM2044 HI_I 47 Hz - 1 kHz 0.17 + 180 µA 0.22 + 220 µA 510 Ω + 1 kHz - 10 kHz 0.4 + 350 µA 0.6 + 400 µA 30 kΩ Guard 2.5 A 2.50000 A 1 µA 10 Hz - 20 Hz 2.5 + 4.5 mA 2.7 + 5 mA V LO_I (Signal>50 mA) - 20 Hz - 47 Hz 0.8 + 6 mA 0.9 + 6 mA 220 Ω LO_V 47 Hz - 1 kHz 0.63 + 3.8 mA 0.65 + 4 mA G_SRC 1 kHz - 10 kHz 0.62 + 4.5 mA 0.7 + 5 mA G_SENS Resistance Full Scale Current Accuracy 90 Days Accuracy 1 Year 2-wire and 4-wire Range Resolution Example: Assume a 30kΩ resistor is in Reading Source 23°± 5°C [1] [2] 23°± 5°C [1] [2] Ohms parallel with two resistors (510 Ω and 220 [1] Accuracy is % of 33 Ω [4] 33.00000 Ω 10 mA 10 µΩ 0.005 + 1.5 mΩ 0.008 + 2 mΩ reading + Ohms. Ω), that are connected in series. By sensing 330 Ω 330.0000 Ω 1 mA 100 µΩ 0.0046 + 5 mΩ 0.007 + 6 mΩ [2] With reading rate set to 2 rps, within one hour of Ohms zero, 3.3 kΩ 3.300000 kΩ 1 mA 1 mΩ 0.003 + 32 mΩ 0.005 + 33 mΩ the voltage at the top of the 30 kΩ, and using Relative control. [3] 4-wire ohms is available to 33 kΩ 33.00000 kΩ 100 µA 10 mΩ 0.0033 + 330 mΩ 0.006 + 350 mΩ then applying this same voltage to the 330 kΩ range. 330 kΩ [3] 330.0000 kΩ 10 µA 100 mΩ 0.007 + 4 Ω 0.009 + 5 Ω [4] only available with the junction of the 510 Ω and 220 Ω there is no SM2042/44. 3.3 MΩ 3.300000 MΩ 1 µA 1 Ω 0.04 + 75 Ω 0.05 + 80 Ω current flow through the shunting path. 33 MΩ 33.0000 MΩ 100 nA 100 Ω 0.24 + 900 Ω 0.26 + 1 kΩ With this “guarding”, the SM2044 330 MΩ [4] 330.00 MΩ 10 nA 10 kΩ 1.8 + 60 kΩ 2.0 + 80 kΩ accurately measures the 30kΩ resistor. Temperature (SM2042 and SM2044) Extended Resistance Temperature Accuracy 23°C ± 5°C Temperature RTD Type [1] Ro (Ω) Resolution range One Year [1] (SM2044) [1] These specifications are valid for pt385, pt3911, 100 Ω, 200 Ω 0.01 °C -150 to 650 °C ±0.06 °C 4-wire type RTD. pt3916, pt3926 When utilizing the Leakage Measurement pt385, pt3911, 500 Ω, 1 kΩ 0.01 °C -150 to 650 °C ±0.03 °C pt3916, pt3926 configuration, Use the following equation ±0.18 °C for temp. ≤ 20°C, to derive the resistance being measured: Cu (Copper) Less than 12 Ω 0.01 °C -100 to 200 °C otherwise ±0.05 °C R = V /I, where V is the DC voltage x s s ±0.10 °C for temp. ≤ 20°C, Cu (Copper) Higher than 90 Ω 0.01 °C -100 to 200 °C otherwise ±0.05 °C source, and I is the leakage current being measured. For example, if you set the Leakage (SM2044) leakage test voltage to 9.0V and measure Leakage Leakage reading Voltage range Accuracy 23°C ± 5°C One Year [1] 9 nA of leakage current, this corresponds to 1,000 MΩ of resistance. This application is [1] Accuracy is % of reading + 1.00 nA to 100.00 nA -10 V to + 10 V 2 + 350 pA Amp. useful for testing cables, printed circuit 100.00 nA to 1000.00 nA -9 V to + 9 V 1.2 + 2 nA Error does not include external shunt resistor’s tolerance. boards, connectors and semiconductors. 1000.00 nA to 3300.00 nA -7 V to + 7 V 1.5 + 20 nA Peak to Peak, Crest and Median (SM2042, SM2044) Full Scale reading Lowest specified Accuracy ACV P-P [2] ACV Range Resolution Internal Temperature (Vp-p) input voltage (Vp-p) 23°C ± 5°C One Year [1] [1] Accuracy is % of reading + (SM2042, SM2044) 330 mV 1.85 V 1 mV 0.1 V 1.5 ± 10 mV Volts 3.3 V 18.5 V 10 mV 1 V 1.4 ± 70 mV [2]Specified from 30Hz to 10kHz. 33 V 185 V 100 mV 10 V 1 ± 700 mV A special on-board temperature sensor 250 V 850 V 1 V 100 V 1 ± .6 V allows monitoring of the DMM’s internal temperature. This provides the Lowest specified Highest specified Accuracy 23°C ± 5°C AC Crest Factor [2] ACV Range Resolution input voltage (Vp-p) input voltage (Vp-p) One Year [1] means to determine when to run the [1] Accuracy is % of reading + 1.8 V 330 mV 0.01 0.1 V 2.2 ± 0.3 self-calibration function (S-Cal) for the Constant. 18 V 3.3 V 0.01 1 V 2.1 ± 0.1 [2]Specified from 30Hz to 10kHz. DMM, as well as predicting the 180 V 33 V 0.01 10 V 2 ± 0.1 performance of the DMM under 700 V 250 V 0.01 100 V 2 ± 0.1 different operating conditions. When Lowest specified Accuracy 23°C ± 5°C AC Median [2] ACV Range Full Scale reading Resolution used properly, this measurement can input voltage (Vp-p) One Year [1] [1] Accuracy is % of reading + 0.08 V enhance the accuracy and stability of 330 mV ± 0.950 V 1 mV 3.3 ± 17 mV Volts. 0.8 V 3.3 V ± 9.50 V 10 mV 3 ±160 mV the DMM. It also allows monitoring of [2]Specified from 30Hz to 10kHz. 33 V ± 95.0 V 100 mV 8 V 3 ±1.4V the PC internal temperature. 250 V ± 425 V 1 V 80 V 3% ± 12V Timing Function (SM2042, SM2044) Capacitance Measurement Threshold DAC Typical one year (SM2042, SM2044) Timing Threshold DAC Selected VAC range Threshold Range Resolution setting uncertainty [1] 330mV -1.0V to +1.0V 0.5 mV 0.2% + 4mV [1] Accuracy ± (% of setting + volts). The SM2042/44 measures capacitance 3.3 V -10.0V to +10.0V 5.0 mV 0.2% + 40mV using a differential charge slew method, 33 V -100.0V to +100.0V 50 mV 0.2% + 0.4mV usable down to a few pF. With the 250 V -500V to +500V 500 mV 0.2% + 4V exception of the 10 nF range, each of 1 Hz - 100 Hz- 1 kHz- 10 kHz- 100 kHz- the ranges has a reading span from 5% ACV Frequency Frequency Range 100 Hz 1 kHz 10 kHz 100 kHz 300 kHz of range to full scale. For testing surface [1] Input RMS voltage required for a 1 mHz 10 mHz 100 mHz 1 Hz 1 Hz valid reading. For example, 10% - Resolution mount parts, use the optional 200% of range indicates that in the 330 mVAC range, the input Uncertainty is ±0.002% of Signametrics SMT Tweezer probes. voltage should be 33 mV to 4 mHz 20 mHz 200 mHz 2 Hz 5 Hz reading ± adder shown 660 mV. 10 - 200% 10 - 200% 10 - 200% 10 - 200% 25 - 200% Input Signal Range [1] of range of range of range of range of range Inductance Measurement (SM2044) ACI Frequency Frequency Range 1 Hz-100 Hz 100 Hz-1 kHz 1 kHz-10 kHz 10 kHz-500 kHz 1 mHz 10 mHz 100 mHz 1 Hz Resolution The SM2044 measures inductance using a precision AC source with a frequency 0.01% ±4 mHz 0.01% ±20 mHz 0.01% ±200 mHz 0.01% ±2 Hz Uncertainty range of 20 Hz to 75 kHz. Since Input Signal Range, 10% -500% 10% - 500% 10% -500% 10% - 500% 3.3 mA Range inductors can vary greatly with Input Signal Range, frequency, you should choose the 50% - 100% 50% - 100% 50% -100% 50% -100% 33 mA Range appropriate generator frequency. In Input Signal Range, 50% -110% 50% - 100% 50% - 100% 50% - 100% 330 mA, 2.5A ranges addition to inductance, the inductor’s Q factor is measured. Duty Cycle Frequency Range 1Hz to 100Hz 100Hz to 1kHz 1kHz to 10kHz 10kHz to 100kHz Resolution 0.02% 0.2% 2% 20% Sourcing Functions Typical Uncertainty is ±0.03% (SM2044) 0.03% 0.3% 3% 20% of reading ± adder shown Full scale reading 100.00 % 100.00 % 100.00 % 100.00 % The SM2044 adds a number of sourcing functions, giving great versatility for a Pulse Width Polarity Frequency range Resolution Width range Uncertainty variety of applications. All of the Positive and Negative pulse 1 Hz to 100 kHz 2 µS 2 µS to 1S 0.01% ± 4 µS available sources, VDC, VAC, and IDC are isolated. This allows sourcing with a significant common mode voltage as Capacitance Measurements (SM2042, SM2044) well as the ability to connect several Accuracy One Year Capacitance Range Full Scale Reading Resolution 23°C ± 5°C [1] SM2044 units in parallel for increased [1] Accuracy is % of reading + 10 nF 11,999 pF 1 pF 2.1 ± 5 pF [2] DC current, or in series for increased Farads. 100 nF 119.99 nF 10 pF 1 DC voltage. [2] Within one hour of zero, using 1 µF 1.1999 µF 100 pF 1 Relative control. Accuracy is specified for values higher than 10 µF 11.999 µF 1 nF 1 Two D/A converters (DACs) are used 5% of the selected range with 100 µF 119.99 nF 10 nF 1 the exception of the 10 nF for the source functions, a 12 bit DAC, range, which is capable of 1 mF 1.1999 mF 100 nF 1 measuring down to 0 pF. 10 mF 11.999 mF 1 µF 2 and a Trim DAC. The last augments the 12 bit DAC to form a 16 bit Inductance Measurements (SM2044) composite DAC. For functions requiring high precision, use both Full Scale Default Accuracy One Year Inductance Range Resolution Reading Frequency 23°C ± 5°C [1] DACs by selecting the ClosedLoop [1] Accuracy is % of reading + 33 µH 33.00 µH 1 nH 75 kHz 3 + 500 nH [2] mode, otherwise only the 12 bit DAC Henry. 330 µH 330.0 µH 10 nH 50 kHz 2 + 3 µH [2] Accuracy is specified for is engaged. 3.3 mH [3] 3.300 mH 100 nH 4 kHz 1.5 + 25 µH values greater than 5% of the selected range. 33 mH 33.00 mH 1 µH 1.5 kHz 1.5 + 200 µH [3] Minimum measureable 330 mH 330.0 mH 10 µH 1 kHz 2.5 + 3 mH 500 nH. 3.3 H 3.300 H 100 µH 100 Hz 3 + 35 mH Software Compatability AC/DC Voltage Source and Current Source (SM2044) The Signametrics products are designed to DC Voltage Parameter Closed Loop Open Loop ® Source be compatible with most Windows S/W ® ® [1] Accuracy is % of Output Voltage range -10.000V to +10.000V including VisualBasic , “C++”, HPVee , reading + Volts ® ® ® Maximum Current source/sink 10 mA ATEasy , Matlab , TestPoint , DAC resolution 16 bits 12 bits ® ® LabWindows , LabView and other Accuracy 23°C ± 5°C One Year [1] 0.015% ± 250 µV 0.13% ± 35 mV ® packages. Also provided is a VisualBasic Typical settling time 3S 2 mS panel with sources and plug-and-play setup. Typical source resistance 250 Ω AC Voltage Source Parameter Closed Loop Open Loop Company Background Output Voltage 0 to 20 V peak-to-peak (0 to 7.071068V RMS) [1] Accuracy is % of reading + Volts DAC resolution 16 bits 12 bit The Signametrics design team has many Peak Current 10 mA Accuracy 23°C ± 5°C One Year [1] ACV spec ± 2 mV ACV spec + 0.8% ± 8 mV years of experience designing brand name Typical settling time 10 S 1.5 S bench top instruments. That experience has Typical source resistance 250 Ω resulted in a family of PC instruments that Frequency range / resolution 2 Hz to 75 kHz / 2 Hz maintain accuracy and performance. Frequency stability 100 ppm ± 1 Hz Signamentrics instruments are designed to Accuracy 23°C ± 5°C sustain, without damage, the inevitable over DC Current Source Range Compliance Voltage Resolution Minimum level One Year [1] voltage events that occur with bench top [1] Accuracy is % of 1.25 µA 4.2 V 400 pA 1 nA 0.2% + 1 nA instruments. Attention to reliability in the reading + Amps 12.5 µA 4.2 V 4 nA 10 nA 0.1% + 10 nA design phase results in instruments that 125 µA 4.2 V 40 nA 100 nA 0.1% + 100 nA demonstrate over 1,000,000 hours MTBF 1.25 mA 4.2 V 400 nA 1 µA 0.1% + 1 µA in operation. 12.5 mA 4.0 V 4 µA 10 µA 0.1% + 10 µA Other specifications Input Characteristics Temperature All Functions Less than 0.1 x accuracy specification per °C at 23°C ± 5°C. DC Volts Coefficient Specifications assume a zero operation performed within an hour of Input Resistance measurement, and Self Cal within four hours. 330 mV & 3.3 V Ranges >10 GΩ Reading Rate (user selectable) 0.5 to 1,000 rps 33 V & 330 V Ranges 10 MΩ up to 10 rps, 6-1/2 digits up to 30 rps, 5-1/2 digits Noice Rejection Hardware Interface PCI Bus NMRR 50, 60, 400Hz >95 dB CMRR @ ≤10 rps with 1 kΩ lead imbalance >120 dB Overload Protection (voltage inputs) 300 VDC, 250 VAC DC Current (DIN Connector) 50 VAC Burden Voltage < 350 mV for all ranges Isolation 300 VDC, 250 VAC from Earth Ground Over Current Protected fuse, top accessible AC Volts 6 Maximum Input 8x10 Volt x Hz Common Mode input (across Voltage HI & LO). (Volt x Hertz) Input Resistance 1 MΩ, shunted by < 100 pF, all ranges 6 3 at Full Scale, increasing to 7 at 1x10 Volt x Hz Common Mode input (across Voltage HI & LO relative to Crest Factor Lowest Specified Voltage Earth Ground). AC coupled Specified range: 10 Hz to 100 kHz Safety Designed to IEC 1010-1 guidelines, for IEC 664 Installation Category II. All DMM inputs are to be used in protected, low energy circuits only. Typical Settling time < 0.5 sec to within 0.1% of final value CMRR @ ≤10 rps with 1 kΩ lead imbalance >60 dB. Approved AC Current Burden Voltage 350 mV RMS all Ranges Calibration Calibrations are performed by Signametrics in a computer with a 10°C 3 at Full Scale, increasing to 7 at Lowest Crest Factor internal temperature rise. All calibration constants are stored in a text file. Specified Current Calibration can be performed by any calibration laboratory having the Over Current Protected 2.5 A fuse. top accessible appropriate equipment. Trigger Input Temperature Range 0°C to 50°C, operating Input active voltage level range +3 V to +15 V Minimum input current 1 mA Power +5 VDC, 300 mA maximum Timing Characteristics Trigger occurs within 1/reading rate Size 8.2" X 4.4" ±35 V from analog DMM inputs, and Isolation from computer chassis earth ground. Note: Signametrics reserves the right to make changes in materials, specifications, product functionality or accessories without notice. Warranty Signametrics products are warranted for a period of one years from date of delivery against defects in material or workmanship. Returned products will either be repaired or replaced at Signametrics’ discretion. Guarantee If, for whatever reason, you are not satisfied with your Signametrics purchase, please return it within 30 days for a refund. Signametrics Precision Instruments for the PC th 6073 50 Avenue N.E., Seattle, WA 98115 Phone (206) 524-4074, Fax (206) 525-8578 www.signametrics.com Updated: 5/30/00