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NI SCXI-1540

8-Channel LVDT Input Module

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  • Programmable 1 or 3 Vrms excitation per channel at 2.5, 3.3, 5, or 10 kHz
  • Programmable input range per channel (0.05 to 6 Vrms)
  • 333 kS/s maximum sampling rate (250 Hz output bandwidth)
  • Multichannel synchronization
  • 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-1540 is an 8-channel linear-voltage differential transformer (LVDT) module that provides the necessary conditioning to measure signals from transformer-based ratiometric position sensors, including LVDTs, rotary variable differential transformers (RVDTs), and resolvers. The SCXI-1540 offers both 4- and 5-wire connections for LVDTs and RVDTs. In addition, this module provides autocalibration without external hardware using NI-DAQmx software. As part of an SCXI system, you can scan the analog input channels of the SCXI-1540 module along with other modules at rates up to 333 kS/s (3 µs per channel). Each of these modules can multiplex its signals into a single channel of the data acquisition device, and you can add modules to increase channel count. With random scanning capabilities, you acquire data from only the channels you select.

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-1540
Product Family Signal Conditioning
Form Factor SCXI
Part Number 777966-40
Operating System/Target Windows
Measurement Type RVDT , LVDT
RoHS Compliant No
Signal Conditioning Voltage excitation
Analog Input
Channels 0 , 8
Single-Ended Channels 0
Differential Channels 8
Sample Rate 333 kS/s
Simultaneous Sampling No
Input Impedance 100 kOhm
Available Filters 250 Hz
Excitation Voltage 3 V , 1 V
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
Triggers cDAQ Chassis No
Part Number Description Est Ship  US Dollars Qty
NI SCXI-1540
777966-40SCXI-1540 8 ch LVDT Module12 - 20$ 1,940.00
Related Products and Accessories
777687-15SCXI-1315 Front Mounting Terminal Block12 - 20$ 228.00

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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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Repair Services

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