SMX2044

Geotest SMX2044 PXI Bus 6 ½ dígitos LCR Sourcing Multímetro digital

Codigo del Producto: SMX2044

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Features


		Flexible, full-featured auto-ranging DMM
		DC & AC Volts & Current, 2-Wire and 4-Wire Ohms
		AC True RMS Measurements, 10 Hz to 100 kHz
		Measure 1 µV to 330 V
		Self-calibrating
		Up to 1000 rps
		Frequency counter 1 Hz to 300 kHz
		300 V Isolation Barrier
		Inductance
		Capacitance
		Leakage
		6-Wire Guard

The SMX2040 plugs into any PXI or CompactPCI chassis to provide a combination of resolution, accuracy and speed that surpasses rivals. A 6-½ digit display, 0.006% basic DCV accuracy and 1,000 rps assure you of measurements that are accurate, fast and repeatable. The SMX2044 adds a comprehensive repertoire of measurements and source functions. Both measurements and sourcing functions are isolated from the PXI bus and are therefore truly differential. An on-board controller responds to high level commands from the PXI bus, minimizing overhead.

Signametrics Software Front Panel for SMX2044

The SMX2040 series is designed as a universal, multifunction DMM. Measurements commonly associated with "high-end" system DMMs are standard features with the SMX2040 family. Functions include 2-wire, 4-wire and 6-wire guarded resistance measurements, inductance and capacitance, leakage and temperature, RMS and peak-to-peak, frequency and timing, sourcing of voltage and current, and much more. The SMX2044 is best suited for applications demanding precision sources with simultaneous measurements such as in Parametric testing, while the SMX2040 is best suited where basic DMM functions are required.

The SMX2040 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. An external, level controlled trigger can be used for capturing single-shot events, and can store up to 64 measurements on-board.

Applications


		Automated production testing
		Laboratory automation
		Portable/field test

Programming


		Supports Plug-and-Play^TM operating systems.
		Intuitive GUI gets you up and making measurements in minutes.
		Windows 98/95 and NT support for both textual programming languages such as ATEasy, Visual Basic, C, C++, and LabWindows/CVI, and graphical environments such as LabView and HPVee.

Features


Function	SMX2040 DMM	SMX2044 LCR Sourcing DMM

DCV 4 ranges, >10 GW and 10 MW input resistance	•	•

ACV 4 ranges, 1 M input	•	•

2-Wire Ohms, six ranges, 330 to 33 M	•	plus 33, 330 M

4-Wire Ohms, four ranges, 330 to 330 k	•	plus 33 range

DC current, four ranges, 3.3 mA to 2.5 A	•	•

AC current, four ranges, 3.3 mA to 2.5 A	•	•

Diode V/I characteristics at 100 nA to 1 mA	•	plus 10 mA

Auto range, relative	•	•

Min/Max, dB and percent deviation functions	•	•

On-board measurement buffer	•	•

Measurement rate: 0.2 to 1,000/sec	•	•

External and threshold trigger	•	•

Capacitance, seven ranges, 10 nF to 10 mF		•

Temperature (five basic RTD types)		•

Frequency / Period measurement		•

Pulse width, pos./neg, & duty cycle		•

Totalizer/event counter		•

Variable threshold DAC, all timing measure		•

Peak to Peak, Crest factor, Median		•

Internal DMM temperature sensor		•

6-wire Ohms (with force/sense)		•

Inductance, six ranges, 33 mH to 3.3 H		•

DCV source 0 to ±10.0 V		•

ACV source 0 to 20 V pk-pk, 2 Hz to 75 kHz		•

DC current source, 1 nA to 12.5 mA		•

Leakage (with external 1 Meg)		•

High Ohms range 1,000 Meg		•

6-wire Guarded Resistance Measurement (SMX2044)

The SMX2044 provides a guarded 6-wire resistance measurement method. It is used to make resistance measurements when the resistor-under-test has other shunting paths which can cause inaccurate readings. This method isolates the resistor-under-test by maintaining a guard voltage at a user defined node. Applications include in current test, Resistor Networks, etc.

Example: Assume a 30 k resistor is in parallel with two resistors (510 and 220 ), that are connected in series. By sensing the voltage at the top of the 30 k, and then applying this same voltage to the junction of the 510 and 220 there is no current flow through the shunting path. With this "guarding", the SMX2044 accurately measures the 30 k resistor.

Extended Resistance (SMX2044)

When utilizing the Leakage Measurement configuration, Use the following equation to derive the resistance being measured: R_x = V_s/I, where V_s is the DC voltage source, and I is the leakage current being measured. For example, if you set the leakage test voltage to 9.0V and measure 9 nA of leakage current, this corresponds to 1,000 M of resistance. This application is useful for testing cables, printed circuit boards, connectors and semiconductors.

Internal Temperature (SMX2044)

A special on-board temperature sensor allows monitoring of the DMM's internal temperature. This provides the means to determine when to run the self-calibration function (S-Cal) for the DMM, as well as predicting the performance of the DMM under different operation conditions. When used properly, this measurement can enhance the accuracy and stability of the DMM. It also allows monitoring of the PC internal temperature.

Capacitance Measurement (SMX2044)

The SMX2044 measures capacitance using a differential charge slew method, usable down to a few pF. With the exception of the 10 nF range, each of the ranges has a reading span from 5% of range to full scale. For testing surface mount parts, use the optional Signametrics SMT Tweezer probes.

Inductance Measurement (SMX2044)

The SMX2044 measures inductance using a precision AC source with a frequency range of 20 Hz to 75 kHz. Since inductors can vary greatly with frequency, you should choose the appropriate generator frequency. In addition to inductance, the inductor's Q factor is measured.

Sourcing Functions (SMX2044)

The SMX2044 adds a number of sourcing functions, giving great versatility for a variety of applications. All of the available sources, VDC, VAC, and IDC are isolated. This allows sourcing with a significant common mode voltage as well as the ability to connect several SMX2044 units in parallel for increased DC current, or in series for increased DC voltage.

Two D/A converters (DACs) are used for the source functions, a 12-bit DAC, and a Trim DAC. The last augments the 12-bit DAC to form a 16-bit composite DAC. For functions requiring high precision, use both DACs by selecting the ClosedLoop mode, otherwise only the 12-bit DAC is engaged.

Specifications

VOLTAGE, CURRENT, AND RESISTANCE

DC VOLTAGE
Range	Full Scale Reading	Resolution	Accuracy 90 Days 23°C ± 5°C ¹	Accuracy 1 Year 23°C ± 5°C ¹
330 mV	330.0000 mV	100 nV	0.007 + 4 µV	0.008 + 7 µV
3.3 V	3.300000 V	1 µV	0.004 + 8 µV	0.006 + 10 µV
33 V	33.00000 V	10 µV	0.006 + 70 µV	0.008 + 100 µV
300 V	330.0000 V	100 µV	0.008 + 700 µV	0.01 + 900 µV

¹ Accuracy is % of reading + Volts

DC CURRENT
Range	Full Scale Reading	Resolution	Accuracy 90 Days 23°C ± 5°C ¹	Accuracy 1 Year 23°C ± 5°C ¹
3.3 mA	3.30000 mA	10 nA	0.07 + 200 nA	0.08 + 200 nA
33 mA	33.0000 mA	100 nA	0.06 + 1.5 µA	0.07 + 1.5 µA
330 mA	330.000 mA	1 µA	0.08 + 20 µA	0.1 + 20 µA
2.5 A	2.50000 A	10 µA	0.32 + 250 µA	0.4 +250 µA

¹ Accuracy is % of reading + Amps

AC VOLTS (RMS)
Range	Full Scale Reading	Resolution	Accuracy 90 Days 23°C ± 5°C ¹	Accuracy 1 Year 23°C ± 5°C ¹
330 mV (Signal >5 mV)	330.000 mV	100 nV	10 Hz - 20 Hz	3.0 + 400 µV
			20 Hz - 47 Hz	0.8 + 400 µV
			47 Hz - 10 kHz	0.13 + 300 µV
			10 kHz - 50 kHz	1.3 + 400 µV
			50 kHz - 100 kHz	3.9 + 500 µV
3.3 V (Signal >10 mV)	3.300000 V	1 µV	10 Hz - 20 Hz	3.0 + 3 mV
			20 Hz - 47 Hz	0.8 + 3 mV
			47 Hz - 10 kHz	0.07 + 2.75 mV
			10 kHz - 50 kHz	0.7 + 3 mV
			50 kHz - 100 kHz	3.9 + 3 mV
33 V (Signal >100 mV)	33.00000 V	10 µV	10 Hz - 20 Hz	3.0 + 30 mV
			20 Hz - 47 Hz	0.8 + 30 mV
			47 Hz - 10 kHz	0.07 + 27.5 mV
			10 kHz - 50 kHz	0.7 + 30 mV
			50 kHz - 100 kHz	3.9 + 30 mV
250 V ² (Signal >1 V)	250.0000 V	100 µV	10 Hz - 20 Hz	3.0 + 300 mV
			20 Hz - 47 Hz	0.8 + 300 mV
			47 Hz - 10 kHz	0.09 + 275 mV
			10 kHz - 50 kHz	0.7 + 300 mV
			50 kHz - 100 kHz	3.9 + 300 mV

¹ Accuracy is % of reading + Volts. ² Signal is limited to 8x10⁶ Volt Hz Product.

AC CURRENT (RMS)
Range	Full Scale Reading	Resolution	Accuracy 90 Days 23°C ± 5°C ¹	Accuracy 1 Year 23°C ± 5°C ¹
3.3 mA (Signal >50 uA)	3.30000 mA	1 nA	10 Hz - 20 Hz	2.7 + 4 µA ¹
			20 Hz - 47 Hz	0.9 + 4 µA
			47 Hz - 1 kHz	0.18 + 3 µA
			1 kHz - 10 kHz	0.5 + 4 µA
33 mA (Signal >500 uA)	33.0000 mA	10 nA	10 Hz - 20 Hz	2.6 + 30 µA
			20 Hz - 47 Hz	0.9 + 30 µA
			47 Hz - 1 kHz	0.15 + 30 µA
			1 kHz - 10 kHz	0.4 + 40 µA
330 mA (Signal >5 mA)	330.000 mA	100 nA	10 Hz - 20 Hz	2.7 + 400 µA
			20 Hz - 47 Hz	0.9 + 400 µA
			47 Hz - 1 kHz	0.22 + 300 µA
			1 kHz - 10 kHz	0.5 + 400 µA
2.5 A (Signal >50 mA)	2.50000 A	1 µA	10 Hz - 20 Hz	2.5 + 3 mA
			20 Hz - 47 Hz	0.8 + 3 mA
			47 Hz - 1 kHz	0.4 + 3 mA
			1 kHz - 10 kHz	0.6 + 4 mA

¹Accuracy is % of reading + Amps

Resistance 2-, 4-, and 6-wire guarded Ohms ¹
Range	Full Scale Reading	Current Source	Resolution	Accuracy 90 Days 23°± 5°C ^{2, 3}	Accuracy 1 Year 23°± 5°C ^{2, 3}
33 ⁴	33.00000	10 mA	10 µ	0.01 + 0.4 m	0.012 + 0.4 m
330	330.0000	1 mA	100 µ	0.007 + 4 m	0.01 + 4 m
3.3 k	3.300000 k	1 mA	1 m	0.006 + 25 m	0.008 + 25 m
33 k	33.00000 k	100 µA	10 m	0.0055 + 250 m	0.008 + 250 m
330 k⁵	330.0000 k	10 µA	100 m	0.0013 + 4	0.016 + 4
3.3 M	3.300000 M	1 µA	1	0.05 + 100	0.06 + 100
33 M	33.0000 M	100 nA	100	0.08 + 1 k	0.12 + 1 k
330 M⁴	330.00 M	10 nA	10 k	2.0 + 20 k	2.5 + 20 k

¹ 6-wire guarded ohm only with SMX2044 with maximum guard current of 20 mA ² Accuracy is % of reading + . ³ With reading rate set to 2 rps, within one hour of Ohms zero, using Relative control. ⁴ only available with the SMX2044. ⁵ 4-wire ohms is available to 330 k range.

Temperature (SMX2044)
RTD Type ¹	Ro ()	Resolution	Temperature range	Accuracy 23°C ± 5°C One Year ¹
pt385, pt3911, pt3916, pt3926	100 , 200	0.01 °C	-150 to 650 °C	±0.06 °C
pt385, pt3911, pt3916, pt3926	500 , 1 k	0.01 °C	-150 to 650 °C	±0.03 °C
Cu (Copper)	Less than 12	0.01 °C	-100 to 200 °C	±0.18 °C for temp. <= 20°C, otherwise ±0.05 °C
Cu (Copper)	Higher than 90	0.01 °C	-100 to 200 °C	±0.10 °C for temp. <= 20°C, otherwise ±0.05 °C

¹ These specifications are valid for 4-wire type RTD.

Leakage (SMX2044)
Leakage reading	Voltage range	Accuracy 23°C ± 5°C One Year ¹
1.00 nA to 100.00 nA	-10 V to + 10 V	2 + 350 pA
100.00 nA to 1000.00 nA	-9 V to + 9 V	1.2 + 2 nA
1000.00 nA to 3300.00 nA	-7 V to + 7 V	1.5 + 20 nA

¹ These specifications are valid for 4-wire type RTD.

Peak to Peak, Crest and Median (SMX2044)
ACV Peak-to-Peak ¹
ACV Range	Full Scale reading (Vp-p)	Resolution	Lowest specified input voltage (Vp-p)	Accuracy 23°C ± 5°C One Year ²
330 mV	1.85 V	1 mV	0.1 V	2.1 ± 10 mV
3.3 V	18.5 V	10 mV	1 V	1.5 ± 60 mV
33 V	185 V	100 mV	10 V	1 ± 600 mV
250 V	850 V	1 V	100 V	1 ± 6V

¹ Peak-to-Peak measurement requires signal frequency range is 30 Hz to 30 kHz. ² Accuracy is % of reading + Volts

AC Crest Factor¹
ACV Range	Resolution	Lowest specified input voltage (Vp-p)	Accuracy 23°C ± 5°C One Year ²
330 mV	0.01	0.1 V	2.5 ± 0.1
3.3 V	0.01	1 V	2.0 ± 0.1
33 V	0.01	10 V	2.0 ± 0.1
250 V	0.01	100 V	2.0 ± 0.1

¹ Specified from 30 Hz to 10 kHz. Allowed signal frequency range is 30 Hz to 30 kHz. ² Accuracy is % of reading + Constant

AC Median ¹
ACV Range	Full Scale reading	Resolution	Accuracy 23°C ± 5°C One Year ²
330 mV	± 0.950 V	1 mV	3.3 ± 17 mV
3.3 V	± 9.50 V	10 mV	3 ±160 mV
33 V	± 95.0 V	100 mV	3 ±1.4V
250 V	± 425 V	1 V	3% ± 12V

¹ Specified from 30 Hz to 10 kHz. Allowed signal frequency range is 30 Hz to 30 kHz. ² Accuracy is % of reading + Volts

Timing Function (SMX2044)
Timing Threshold DAC
Selected VAC range	Threshold Range	Threshold DAC Resolution	Typical one year setting uncertainty ¹
330 mV	-1.0 V to +1.0 V	0.5 mV	0.2% + 4 mV
3.3 V	-10.0 V to +10.0 V	5.0 mV	0.2% + 40 mV
33 V	-100.0 V to +100.0 V	50 mV	0.2% + 0.4 mV
250 V	-500 V to +500 V	500 mV	0.2% + 4 V

¹ Accuracy ± (% of setting + volts)

ACV Frequency
Frequency Range	1 Hz - 100 Hz	100 Hz - 1 kHz	1 kHz - 10 kHz	10 kHz - 100 kHz	100 kHz -300 kHz
Resolution	1 mHz	10 mHz	100 mHz	1 Hz	1 Hz
Uncertainty is ±0.002% of reading ± adder shown	4 mHz	20 mHz	200 mHz	2 Hz	5 Hz
Input Signal Range ¹	10 - 200% of range	10 - 200% of range	10 - 200% of range	10 - 200% of range	25 - 200% of range

¹ Input RMS voltage required for a valid reading. For example, 10% -200% of range indicates that in the 330 mVAC range, the input voltage should be 33 mV to 660 mV.

ACI Frequency
Frequency Range	1 Hz - 100 Hz	100 Hz - 1 kHz	1 kHz - 10 kHz	10 kHz - 100 kHz
Resolution	1 mHz	10 mHz	0.01% ±200 mHz	0.01% ±2 Hz
Input Signal Rangem, 3.3 mA Range	10% - 500%	10% - 500%	10% - 500%	10% - 500%
Input Signal Range, 33 mA Range	50% - 100%	50% - 100%	50% - 100%	50% - 100%
Input Signal Range, 330 mA, 2.5 A ranges	50% -110%	50% - 100%	50% - 100%	50% - 100%

Duty Cycle
Frequency Range	1 Hz - 100 Hz	100 Hz - 1 kHz	1 kHz - 10 kHz	10 kHz - 100 kHz
Resolution	0.02%	0.2%	2%	20%
Typical Uncertainty is ±0.03% of reading ± adder shown	0.03%	0.3%	3%	30%
Full scale reading	100.00%	100.00%	100.00%	100.00%

Pulse Width
Polarity	Frequency range	Resolution	Width range	Uncertainty
Positive and Negative pulse	1 Hz to 100 kHz	2 µS	2 µS to 1S	0.01% ±4 µS

Capacitance Measurements (SMX2044)
Capacitance
Range	Full Scale Reading	Resolution	Accuracy One Year 23°C ± 5°C ¹
10 nF	11.999 pF	1 pF	2 ± 4 pF ²
100 nF	119.99 nF	10 pF	2 ± 100 pF
1 µF	1.1999 µF	100 pF	2 ± 1 nF
10 µF	11.999 µF	1 nF	2 ± 10 nF
100 µF	119.99 nF	10 nF	2 ± 100 nF
1 mF	1.1999 mF	100 nF	2.5 ± 2 µF
10 mF	11.999 mF	1 µF	3.5 ± 50 µF

¹ Accuracy is % of reading + Farads ² Within one hour of zero, using Relative Control. Accuracy is specified for values higher than 5% of the selected range with the exception of the 10 nF range, which is capable of measuring down to 0 pF

Inductance Measurements (SMX2044)
Capacitance
Range	Full Scale Reading	Resolution	Default Frequency	Accuracy One Year 23°C ± 5°C ¹
33 µH	33.00 µH	1 nH	75 kHz	3 + 500 nH ²
330 µH	330.0 µH	10 nH	50 kHz	2 + 3 µH
3.3 mH ³	3.300 mH	100 nH	4 kHz	1.5 + 25 µH
33 mH	33.00 mH	1 µH	1.5 kHz	1.5 + 200 µH
330 mH	330.0 mH	10 µH	1 kHz	2.5 + 3 mH
3.3 mH	3.300 µH	100 µH	100 kHz	3 + 35 mH

¹ Accuracy is % of reading + Henry ² Accuracy is specified for values greater than 5% of the selected range ³ Minimum measurable 500 nH

AC/DC VOLTAGE SOURCE AND CURRENT SOURCE (SMX2044)
DC Voltage Source
Parameter	Closed Loop	Open Loop
Output Voltage range	-10.000 V to +10.000 V
Maximum Current source/sink	10 mA
DAC resolution	16 bits	12 bits
Accuracy 23°C ±5°C One Year ¹	0.015% ± 250 µV	0.13% ± 35 mV
Typical setting time	3 s	2 ms
Typical source resistance	250

¹ Accuracy is % of reading + Volts

AC Voltage Source
Parameter	Closed Loop	Open Loop
Output Voltage range	0 to 20 V peak-to-peak (0 to 7.071068V RMS)
DAC resolution	16 bits	12 bits
Peak Current	10 mA
Accuracy 23°C ±5°C One Year ¹	ACV spec ± 2 mV	ACV spec + 0.8% ± 8 mV
Typical setting time	10 s	1.5 s
Typical source resistance	250
Frequency range / resolution	2 Hz to 75 kHz / 2 Hz
Frequency stability	100 ppm ± 1 Hz

¹ Accuracy is % of reading + Volts

DC Current Source
Range	Compliance Voltage	Resolution	Minimum level	Accuracy 23°C ± 5°C One Year ¹
1.25 µA	4.2 V	400 pA	1 nA	0.2% + 1 nA
12.5 µA	4.2 V	4 nA	10 nA	0.1% + 10 nA
125 µA	4.2 V	40 nA	100 nA	0.1% + 100 nA
1.25 mA	4.2 V	400 nA	1 µA	0.1% + 1 µA
12.5 mA	4.0 V	4 µA	10 µA	0.1% + 10 µA

¹ Accuracy is % of reading + Amps

OTHER SPECIFICATIONS

Temperature Coefficient	All Functions Less than 0.1 x accuracy specification per °C at 23°C ± 5°C

Reading Rate	(user selectable) 0.5 to 1,000 rps up to 10 rps, 6-½ digits up to 30 rps, 5-½ digits

Hardware Interface	PXI Bus

Overload Protection	(voltage inputs) 300 VDC, 250 VAC (DIN Connector) 50 VAC

Isolation	300 VDC, 250 VAC from Earth Ground

Maximum Input (Volt x Hertz)	8x10⁶ Volt x Hz Common Mode input (across Voltage HI & LO) 1x10⁶ Volt x Hz Common Mode input (across Voltage HI & LO) relative to Earth Ground)

Safety	Designed to IEC 1010-1 guidlines, for IEC 664 Installation Category II. All DMM inputs are to be based in protected, low energy circuits only. Approved

Calibration	Calibrations are performed at the factory in a computer with a 10°C internal temperature rise. All calibration contants are stored in a text file. Calibration can be performed by any calibration laboratory having the appropriate equipment.

Temperature Range	0°C to 50°C, operating

Power	+5 VDC, 300 mA maximum

Size	8.2" x 4.4"

INPUT CHARACTERISTICS

DC Volts
	Input Resistance
	330 mV & 3.3 V Ranges	>10 G
	33 V & 330 V Ranges	10 M

Noise Rejection
	NMRR 50, 60, 400 Hz	>95 dB
	CMRR @ ²10 rps with 1 k lead imbalance	>120 dB

DC Current
	Burden Voltage	<350 mV for all ranges
	Over Current Protected	Fuse, top accessible
AC Volts
	Input Resistance	1 M, shunted by < 100 pF, all ranges
	Crest Factor	3 at Full Scale, increaseing to 7 at Lowest Specified Voltage
	AC coupled Specified Range:	10 Hz to 100 kHz
	Typical Settling time	<0.5 sec to within 0.1% of final value
	CMRR @ ²10 rps with 1 k lead imbalance	>60 dB
AC Current
	Burden Voltage	350 mV RMS all Ranges
	Crest Factor	3 at Full Scale, increasing to 7 at Lowest Specified Current
	Over Current Protected	2.5 A fuse, top accessible
Trigger Input
	Input active voltage level range	+3 V to +15 V
	Minimum input current	1 mA
	Timing Characteristics	Trigger occurs within 1/reading rate
	Isolation	±35 V from analog DMM inputs and from computer chassis Earth Ground

Connections

Connections to the SMX2040 series are made using 4 banana jacks (not included). A DIN connector on the SMX2040 series carries trigger input and the 6- wire guarded force and sense lines

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Geotest SMX2044 PXI Bus 6 ½ dígitos LCR Sourcing Multímetro digital

Descripcion

Features

Applications

Programming

Features

6-wire Guarded Resistance Measurement (SMX2044)

Extended Resistance (SMX2044)

Internal Temperature (SMX2044)

Capacitance Measurement (SMX2044)

Inductance Measurement (SMX2044)

Sourcing Functions (SMX2044)

Detalle del producto

Connections

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