The Newport 4832-C is a PC-based multi-channel optical power meter delivering simultaneous measurements across up to four configurable channels. Its distributed architecture separates sensitive analog circuitry and pre-amplifier boards in a remote breakout box from the host PC, connected via shielded twisted-pair cable to minimize noise and ensure measurement integrity. The system employs dual analog-to-digital converters—a 15-bit integrating A/D for precision DC measurements and a 12-bit high-speed A/D for rapid sampling—enabling flexible resolution and acquisition strategies. An ISA bus plug-in board with dedicated on-board processor manages auto-ranging, data acquisition, and communication to the host computer. Measurements output directly in watts or amps, with post-processing conversion to dB or dBm units.
Technical Specifications
• Channels: One to four, configurable; field upgrades available
• Sampling Resolution: 15-bit at 15 Hz; 12-bit at up to 3500 Hz (single-channel)
• Channel Skew: 250 µs
• Analog-to-Digital Conversion: Dual converters—12-bit high-speed for fast sampling, 15-bit integrating for precision
• Measurement Units: Watts or amps; post-processed to dB or dBm
• Calibration: NIST traceable
• Spectral Range: 190–1800 nm (free-space and fiber-pigtailed)
• Interface: PC ISA bus plug-in card
• Breakout Box Offset: Up to 30 feet from PC; cable runs up to 15 ft standard
– Key Features
• High-speed data acquisition with on-board processor overhead management
• Shielded twisted-pair interconnect for superior noise immunity
• Compatible with Newport 818 Series detectors (Ge, Si, InGaAs)
• Pre-amplifier boards matched to detector type for optimized gain
• 19-inch single-height rack mount kit accommodates one or two units
• GPIB command-set compatibility with Newport 2832-C optical power meters
– Typical Applications
• Multi-channel photonics manufacturing and process control
• High-speed optical power monitoring in test environments
• Precision measurements requiring NIST traceability
– Compatibility & Integration
Works with Newport 818 Series low-power detectors across 190–1800 nm. Requires PC with ISA slot; optimized for 486 or Pentium CPUs. Accepts direct A/D data or computed values for custom processing.
