The Sypris/Metrum RSR 512 is a multi-channel portable recorder/reproducer combining analog FM recording with digital recording accuracy for field and laboratory data acquisition. This instrumentation recorder digitizes analog signals via a 12-bit ADC, stores data on ST-120 cassettes, and reproduces both analog and digital outputs. The helical scan transport uses solid ferrite heads and delivers 70 dB dynamic range across DC to 80 kHz bandwidth. A menu-driven interface enables rapid setup of input ranges, data bandwidths, and selectable filters—choose from 80, 40, 20, 10, 5, 2.5, 1.25 kHz or 625, 312, 156, 78, 39, 20 Hz with flat amplitude (4-pole standard, 8-pole Chebyshev optional) or linear-phase transient response. Speed varies across a 512:1 ratio in binary steps. Reed-Solomon error correction and interleaving protect data integrity. An electroluminescent monitor screen provides per-channel bar graphs and overrange warnings with operator-adjustable sensitivity. The rugged transport handles mobile deployment; record duration ranges from 50 minutes to over 426 hours depending on channel count, bandwidth, and sample density.
Technical Specifications
• Recording Technology: FM analog + digital recording on ST-120 cassettes
• ADC: 12-bit
• Dynamic Range: 70 dB
• Frequency Response: DC to 80 kHz record/reproduce bandwidth
• Selectable Filters: 80, 40, 20, 10, 5, 2.5, 1.25 kHz and 625, 312, 156, 78, 39, 20 Hz (4-pole flat or 8-pole Chebyshev; optional linear-phase)
• Speed Range: 512:1 ratio in binary steps
• Record Duration: 50 minutes to over 426 hours (variable per channel count, bandwidth, sample density)
• Digital I/O Module: Up to 7.6 Mbits/sec
• Error Correction: Reed-Solomon codes with interleaving
• Recording Heads: Solid ferrite
• Power Supply: AC/DC
• Ship Weight: 150 lbs
– Key Features
• Channel configurations in 8, 16, 32, and 64 channels (expandable via auxiliary housing)
• Electroluminescent monitor with per-channel bar graphs and overrange warnings
• Operator-adjustable input sensitivity during recording
• Two-channel output monitor without full reproduce electronics
• Analog and digital outputs
• Programmable data bandwidths and input voltage ranges
– Typical Applications
Field instrumentation, mobile data acquisition, laboratory recording, multi-channel analog and digital telemetry.
– Compatibility & Integration
Works with ST-120 cassettes; provides digital I/O up to 7.6 Mbits/sec for integration with external systems.

















