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NI SCXI-1581

32-Channel Current Excitation Module

  • 32 channels of 100 µA current excitation sources
  • Use with SCXI-1102 module for high-channel-count RTD measurements
  • ±0.05% accuracy for each current source
  • NI-DAQmx Measurement Services software to simplify configuration and measurements
  • 5 ppm/°C maximum temperature drift
  • SCXI-1600 (USB) is recommended for controlling this module; also compatible with M Series

Use SCXI Advisor to configure an SCXI data acquisition system based on this module.

The National Instruments SCXI-1581 provides 32 channels of 100 µA current excitation. The high accuracy and stability of these current sources make them especially well suited for measuring resistance with a high degree of accuracy. The module is ideal in any application that requires a 100 µA fixed current excitation, such as resistive temperature devices (RTDs). You can use the SCXI-1581 with the SCXI-1102 to create a high-channel-count RTD measurement system.

The SCXI-1600USB data acquisition module can be used in conjunction with this module to create a completely plug-and-play USB data acquisition system. An SCXI chassis is required to house the SCXI-1600 and assorted SCXI modules for a particular system. The SCXI-1000 chassis is capable of holding up to four modules while the SCXI-1001 can hold up to 12.

Part Number Description Est Ship  US Dollars Qty
NI SCXI-1581
777966-81SCXI-1581 32 ch, 100 uA Current Excitation Module12 - 20$ 2,099.00
Accessories
777687-00SCXI-1300 Low-Voltage Screw Terminal Block, Cast10 - 15$ 219.00
777687-10SCXI-1310 96-Pin Connector and Shell Assembly10 - 15$ 79.00
777508-01BNC-2095 32-Channel BNC Connector12 - 20$ 479.00
777264-01TBX-96 DIN-Rail Mountable Connector Blocks12 - 20$ 189.00
183228-01SH96-96 Shielded Cable, 1 m5 - 10$ 209.00
183228-02SH96-96 Shielded Cable, 2 m5 - 10$ 259.00
183425-01R96-96 Ribbon Cable, 1 m12 - 20$ 119.00
183425-02R96-96 Ribbon Cable, 2 m12 - 20$ 199.00

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Specifications Documents


Specifications Summary

General
Product Name SCXI-1581
Product Family Signal Conditioning
Form Factor SCXI
Operating System/Target Windows , Real-Time , Linux
LabVIEW RT Support Yes
Measurement Type Current
RoHS Compliant No
Analog Input
Channels 0 , 0
Single-Ended Channels 0
Differential Channels 0
Analog Output
Channels 32
Output Type Sourcing
Maximum Current Range 100 A , 0 pA
Digital I/O
Bidirectional Channels 0
Input-Only Cannels 0
Output-Only Channels 0
Number of Channels 0 , 0 , 0
Counter/Timers
Counters 0
Physical Specifications
Length 18.800 cm
Width 17.200 cm
Height 3.0 cm
I/O Connector Screw terminals
Minimum Operating Temperature 0.0 °C
Maximum Operating Temperature 50.0 °C
Minimum Storage Temperature -20.0 °C
Maximum Storage Temperature 70.0 °C

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:

Calibration

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Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

Technical Support

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