The Newport 2931-C is a dual-channel optical power meter engineered for precise measurement of laser power across ultraviolet through near-infrared wavelengths. It delivers accurate power characterization from 100 pW to 40 W, with true RMS, DC, and peak-to-peak measurement modes. The instrument samples at 250 kHz and handles repetition rates to 20 kHz, making it suitable for both continuous and pulsed laser sources. A 5.7″ graphical TFT LCD display with six selectable color schemes provides real-time data visualization. The meter stores up to 250,000 data points internally and supports external storage via USB flash drive. Programmable sampling rates, moving statistics, color plotting, and on-board post-processing enable rapid characterization workflows. Analog outputs on each channel permit direct oscilloscope monitoring, while USB and RS-232 interfaces support laboratory integration and automation.
Technical Specifications
• Measurement Range: 100 pW to 40 W
• Wavelength Coverage: 190 nm to 1800 nm (detector-dependent)
• Measurement Modes: DC, peak-to-peak, true RMS
• Sampling Rate: 250 kHz
• Repetition Rate: Up to 20 kHz
• Data Storage: 250,000 internal data points; USB external storage
• Display: 5.7″ graphical TFT LCD, 1/4 VGA resolution, six color options
• Measurement Units: W, dBm, dB, A
• Power Input: 90–240 VAC
• Weight: 11.3 lb (5.1 kg)
– Key Features
• Dual-channel simultaneous measurements
• Analog and digital filtering
• Active temperature compensation (918D and 918L detectors)
• Programmable sample rates and moving statistics
• Analog bar graph with 10X zoom capability
• Color-plotting and data post-processing on board
• Multiple user configuration storage
– Interfaces & Control
• USB (8 Mbps data transfer) and RS-232 connectivity
• Programmable trigger input/output with alarm levels
• Trigger synchronization for external equipment
• Analog output per channel for oscilloscope/voltmeter monitoring
– Detector Compatibility
• Newport 918D and 918L Series detectors (native compatibility)
• Legacy 818 Series detectors (requires 841-DIN adapter; calibration module required for calibrated readings)
• 818/CM Series detectors (841-DIN adapter mandatory)
