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NI SCXI-1126

8-Channel Isolated Frequency Input Module

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  • Programmable threshold and hysteresis per channel
  • Programmable gain and filter settings per channel
  • 15 Hz to 128 kHz signal ranges up to +/-250 Vrms
  • 333 kS/s maximum sampling rate
  • NI-DAQmx measurement services software to simplify configuration and measurements


Use the "Configure System" link above to configure an SCXI DAQ system based on this module.

The NI SCXI-1126 has eight isolated frequency input channels. Each channel includes a frequency-to-voltage conversion circuit with programmable input range, threshold, hysteresis, and filtering. The SCXI-1126 can measure the frequency of analog and digital signals with voltage levels as high as 1,000 V. The output voltages of this module are multiplexed onto a single channel of a data acquisition device, so you can scan and acquire multiple frequency and analog input signals within a single high-speed scan operation.

An SCXI chassis is required to house the SCXI modules. The NI SCXI-1000 chassis can hold up to four modules while the NI SCXI-1001 can hold up to 12. You can choose NI X Series, M Series, E Series, or S Series DAQ modules for controlling the chassis.

Specifications Documents

Specifications Summary

General
Product Name SCXI-1126
Product Family Signal Conditioning
Form Factor SCXI
Part Number 776572-26
Operating System/Target Real-Time , Linux , Windows
LabVIEW RT Support Yes
Measurement Type Frequency
Isolation Type Ch-Ch Isolation
RoHS Compliant No
Analog Input
Channels 0 , 8
Single-Ended Channels 0
Differential Channels 8
Sample Rate 333 kS/s
Simultaneous Sampling Yes
Input Impedance 50 GOhm
Available Filters 320 Hz , 40 Hz , 1 Hz , 1000 Hz
Analog Output
Channels 0
Digital I/O
Bidirectional Channels 0
Input-Only Channels 0
Output-Only Channels 0
Counter/Timers
Counters 0
Physical Specifications
Length 20.3 cm
Width 17.2 cm
Height 3 cm
I/O Connector Screw terminals
Minimum Operating Temperature 0 °C
Maximum Operating Temperature 50 °C
Minimum Storage Temperature -20 °C
Maximum Storage Temperature 70 °C
Timing/Triggering/Synchronization
Triggering Analog , Digital
Triggers cDAQ Chassis No
Part Number Description Est Ship  US Dollars Qty
NI SCXI-1126
776572-26SCXI-1126 8 ch Isolated Frequency Input Module12 - 20$ 1,770.00
777687-27SCXI-1327 High-Voltage Attenuator Terminal Block, Cast10 - 15$ 444.00
Related Products and Accessories
777687-27SCXI-1327 High-Voltage Attenuator Terminal Block, Cast10 - 15$ 444.00

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Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

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