Universal Counter/Timers

Product Information

All Astronics units are built for tough duty and offer up to 11 measurement functions with high speed and high resolution.

Choose from the PXI and VXI versions listed below.

PXIe-2461

The Astronics PXIe-2461 is a high-performance, 2-channel, universal 235 MHz frequency interval counter.

Occupying a single PXI Express peripheral slot or hybrid slot, the frequency and time interval/counter (FTIC) offers 12 easy-to-use automatic measurement functions including:

• Frequency and period
• Time interval
• Time interval (delayed)
• Rise and fall time
• Pulse width
• Duty cycle
• Frequency ratio (channels 1 to 2 or 2 to 1)
• Totalize (manual, by pulse, by cycle, and timed)
• Phase

Outstanding Resolution: The Astronics 2461 counter offers frequency measurements up to 235 MHz and up to nine digits of resolution per second. In time interval, the resolution is 1 ns in single-shot mode and 100 ps in average mode.

High-Voltage Measurement: You can set the Astronics 2461 to measure timing and amplitude characteristics in either of two voltage ranges: ±5.1 V or ±42 V.

Measurement Timeout: With the programmable measurement timeout, you can optimize system performance where input signals are missing.

Datasheet
Driver

2461A VXI

The Astronics Test Systems 2461A is a high performance, 2-channel, universal 200 MHz counter, a functional replacement for the obsolete Racal Instruments™ 2461 and also recommended to replace the Keysight™ E1420A/B.

The module is available in two versions:

• 2461A-Cd with no oscillator
• 2461A-Ce with a TCXO

The 2461A is a high-performance unit offering twelve automatic measurement functions:

• Frequency
• Period
• Time Interval
• Time Interval Delay
• Rise Time
• Fall Time
• Pulse Width
• Duty Cycle
• Frequency Ratio channel A to B
• Totalize
• Phase
• DVM (MAX, MIN and DC voltages)

Outstanding Resolution. The 2461A offers 200MHz frequency measurements with up to 9 digits of resolution per second. In time interval, the resolution is 1ns in single shot and 100ps in average mode.

High Speed Time Measurement. By using Time Error Correction (TEC) in combination with traditional recipromatic techniques, measurement time is minimized without any performance compromise.

Datasheet
User Manual

Driver:
32-bit Driver Installation
64-bit Driver Installation