Specifications

Signametrics 8
1.2 Minimum Requirements
The SMX2040 series of system DMMs are precision plug-in modules that are compatible with 3U PXI or
CompactPCI chassis. The processor type must be a Pentium or equivalent processor running MS Windows. The
DMM requires a single PXI or CompactPCI slot. A mouse must be installed when controlling the DMM from the
Windows Control Panel. The SMX2040 comes with a Windows' DLL, for operation with Windows' Version
95/98/Me/2000/XP and NT4.0.
1.3 Feature Set
The base unit, the SMX2040, has 6-1/2 digit performance and can be used as a general purpose DMM, giving very
accurate and stable readings. The SMX2044 adds to the SMX2040 additional measurement functions not found in
other DMMs such as inductance measurement and sourcing capabilities.
SMX2040, 42, 44 6½ Digit DMMs feature table:
Function SMX2040
DMM
SMX2042
Multi-Function
DMM
SMX2044 LCR
Sourcing DMM
DCV 4 ranges, >10 GΩ & 10 MΩ input
resistance.
√ √ √
ACV 4 ranges, 1 MΩ input √ √ √
2-Wire Ohms, six ranges 330 Ω to 33 MΩ √ plus 33 Ω,
330 MΩ
plus 33 Ω,
330 MΩ
4-Wire Ohms, four ranges 330 Ω to 330 kΩ √ plus 33 Ω plus 33 Ω range
Offset Ohms
√ √ √
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 ηA to 1mA √
plus 10 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
√ √ √
Thermocouples
√ √ √
High Dynamic range; +3,300,000 counts
√ √ √
PXI Trigger In/Out
√ √ √
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
√ √
Six wire Ohms (with force/sense)
√
Inductance, six ranges 33 µH 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 measurement
√
Synthesized resistance source
√
Extended Resistance measurements
√
In Circuit Capacitance
√
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