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Geotest SMX2044 PXI Bus 6 ½ dígitos LCR Sourcing Multímetro digital

Geotest  SMX204
SMX2044
 
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Disponibilidad: Producto descontinuado
Codigo del Producto: SMX2044

Descripcion Detalle del producto
 
Descripcion

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-PlayTM 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 Mohm input
2-Wire Ohms, six ranges, 330 ohm to 33 Mohm plus 33ohm, 330 Mohm
4-Wire Ohms, four ranges, 330ohm to 330 kohm plus 33 ohm 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 kohm resistor is in parallel with two resistors (510 ohm and 220 ohm), that are connected in series. By sensing the voltage at the top of the 30 kohm, and then applying this same voltage to the junction of the 510 ohm and 220 ohm there is no current flow through the shunting path. With this "guarding", the SMX2044 accurately measures the 30 kohm resistor.

Extended Resistance (SMX2044)

When utilizing the Leakage Measurement configuration, Use the following equation to derive the resistance being measured: Rx = Vs/I, where Vs 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 Mohm 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.


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