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Astronics Test Systems PXIe-2461 Universal counter/timer module
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Astronics Test Systems · PXI Express

Astronics PXIe-2461

The Astronics PXIe-2461 is a two-channel universal counter/timer for frequency measurements up to 235 MHz. It occupies one PXI Express peripheral or hybrid slot and supports frequency, time interval, pulse, and phase measurements.

ManufacturerAstronics Test Systems
ModelPXIe-2461
Part Number784197-01 · 408619
Product TypeUniversal counter/timer module
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Channels2
Maximum measured frequency235 MHz
Time interval resolution1 ns single-shot; 100 ps averaged
Voltage ranges±5.1 V and ±42 V
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Overview

Product overview

Key product information and technical features.

The PXIe-2461 combines frequency and period measurement with normal and delayed time interval, rise/fall time, pulse width, duty cycle, frequency ratio, totalize, and phase functions. Frequency resolution reaches up to nine digits per second.

Programmable measurement timeout supports test sequences where an input signal may be absent. Nine arming modes provide additional control over measurement initiation.

  • Automatic phase, pulse, peak, rise/fall time, time interval, and ratio measurements.
  • Selectable ±5.1 V and ±42 V ranges for timing and amplitude characterization.
  • Independent 50 kHz low-pass filters for low-frequency measurements.
  • LabVIEW application development through the dedicated Astronics PXIe-2461 Driver.
Verified specifications

Technical data

Verified product specifications.

Bus interfacePXI Express
Measurement channels2
Maximum measured frequency235 MHz
Single-shot time interval resolution1 ns
Averaged time interval resolution100 ps
Input impedance50 Ω or 1 MΩ
Input couplingAC or DC
Channel input connectorsBNC
Operating temperature0 to 50 °C
Condition & included items

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Compatibility

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Astronics Test Systems

Manufacturer

PXI Express

Modular instrumentation interface

PXIe-2461

Universal counter/timer

Slot requirement

One PXI Express peripheral or hybrid slot

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Manuals & software

Technical resources

Manuals, software and technical resources for this model.

Astronics PXIe-2461 DatasheetDatasheet · astronics.com
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Astronics PXIe-2461 Product InformationOfficial Product Page · ni.com
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Astronics PXIe-2461 Driver DownloadTechnical resource
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Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What is the maximum frequency the PXIe-2461 measures?

The maximum measured frequency is 235 MHz.

How does averaging affect time interval resolution?

Time interval resolution is 1 ns in single-shot mode and 100 ps with averaging.

Can the PXIe-2461 be programmed in LabVIEW?

Yes. NI provides the Astronics PXIe-2461 Driver for creating LabVIEW applications with this module. Check the selected release for software and operating-system requirements.

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