720281 Frequency Measurement Module
The 720281 Frequency Module transforms pulse or encoder inputs into clear, real-time representations of frequency, allowing engineers to see frequency as a waveform or trend. With two isolated inputs, high accuracy, and triggerable frequency measurements, it’s ideal for capturing frequency and motion behavior alongside voltage, current, or control signals.
In addition, the 720281 module lets you apply real-time math channels directly to translated frequency data, enabling analysis such as averaging, filtering, or correlation without post-processing. This integration streamlines test workflows and reveals the true relationship between mechanical and electrical performance.
Key Features
- Comprehensive measurement modes — Frequency, RPM/RPS, duty, period, pulse width, integration (distance/flow), and velocity.
- Wide frequency range — Measures from approximately 0.01 Hz up to 500 kHz.
- Dual isolated inputs (BNC) — Safe, flexible acquisition without ground-loop interference.
- High-voltage tolerance — Up to 420 V (DC + AC peak) with appropriate probes; 42 V direct input.
- Built-in signal conditioning — Includes pull-up resistors, debounce filters, and selectable bandwidths for encoder and sensor inputs.
- Real-time math functions — Apply calculations, filters, FFTs, and correlations to frequency channels instantly.
- High resolution and speed — 16-bit A/D conversion and 1 MS/s sampling rate for detailed dynamic capture.
- Ultra-fine timing — 625 ps minimum time resolution.
- Compatible — Fully compatible with DL950, DL350, SL2000, SL1000, and DL850 series models.
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