The National Instruments PXI-6133 Multifunction I/O Module, part numbers 778771-01 and 779129-01, is an integral component of the S Series. Designed for versatile data acquisition and control applications, the PXI-6133 features eight analog input channels, eight bidirectional digital I/O channels, two up/down counter/timers, and one frequency scaler. Each analog input channel employs an individual instrumentation amplifier, multiplexer, A/D converter, and FIFO, enabling simultaneous data acquisition. The module exclusively supports differential (DIFF) input mode, utilizing true differential inputs to handle both positive and negative signals. Users must adhere to the specified differential and common-mode input ranges to avoid damage to the module and connected systems.

The PXI-6133 facilitates two distinct data acquisition methods: software-timed and hardware-timed. In software-timed acquisitions, the software controls the acquisition rate, whereas hardware-timed acquisitions rely on a digital hardware signal for timing. Additionally, the module supports various analog input triggering activities, including pause, reference, and start, which can be initiated by either digital or analog hardware triggers. The device boasts a 14-bit ADC resolution, a maximum sampling rate of 2.5 MS/s per channel, and 100 MΩ input impedance in parallel with 10 pF. It also features ±36 V of overvoltage protection, complemented by a FIFO memory size of 16 or 32 MS.

The dimensions of the PXI-6133 are 6.3 inches by 3.9 inches (16.0 cm by 10.0 cm), and it comes with a 2-3 year warranty. While this module is no longer available directly from National Instruments, it can still be sourced through Apex Waves, ensuring continued access for your automation and control needs. User and maintenance manuals for the PXI-6133 are available for download to aid in installation and operation. For pricing information, please contact a sales representative directly.