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Attention
Mettez le MON-10467 (DC) hors tension avant de l'ouvrir pour
l'entretien.
Notice
The length of the signal cable must be no longer than 30 m (100 ft).
Notice
Operate this product only with shielded cables and accessories.
Notice
Refer to the
MON-10467 Specifications
on
to make sure
that any devices you connect to the MON-10467 are compatible.
Analog Input Circuitry
Figure 6. Analog Input Circuitry (One of Four)
AI0±
AI4±
AI8±
ADC
Multiplexer
Channels 0, 4, 8
Channels 1, 5, 9
Channels 2, 6, 10
Channels 3, 7, 11
AC/DC Coupling
Amplifier
and
Prefilter
+
–
IEPE On/Off
Protection
Protection
Protection
AI
Ground
Current
Limited
Resistor
The MON-10467 analog input terminals are referenced to a common AI ground through a
50 Ω resistor. AI ground is not directly accessible. The MON-10467 provides overvoltage
protection for each channel. Refer to the
MON-10467 Specifications
on
s for
more information about overvoltage protection. Input signals on each channel are conditioned,
buffered, and then sampled by a 24-bit Delta-Sigma ADC. The MON-10467 has four
independent signal conditioning paths and ADCs, enabling simultaneous sampling of up to
four input channels. The following channels are sampled simultaneously:
•
AI0, AI1, AI2, and AI3
•
AI4, AI5, AI6, and AI7
•
AI8, AI9, AI10, and AI11
Each ADC can scan through three independent input channels for a total of 12 input channels.
You can configure each channel to AC or DC coupling. The AC coupling cutoff frequency is
configurable to 10 Hz or 2.0 Hz. You can turn the IEPE excitation on or off for each channel.
The IEPE excitation circuitry includes open and short circuit detection.
MON-10467 User Guide
|
© National Instruments
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