The MKS Instruments/Newport 2835-C is a dual-channel optical meter for precision measurement of optical power, energy, wavelength, and exposure control in laboratory and production environments. It delivers high-sensitivity measurements across infrared wavelengths, supports pulsed and integrated energy measurements, and features advanced triggering with comparator outputs. The instrument provides data logging up to 1,000 measurements per channel and connects via RS-232 and IEEE-488 (GPIB) interfaces.
Technical Specifications
Optical Measurement Capabilities
• Optical Power Range: −70 to +33 dBm (with 818-IR detector)
• Wavelength Range: 780 nm to 1800 nm (with 818-IR detector)
• Wavelength Calibration: 1 nm steps
• Measurement Functions: DC power, peak-to-peak power, signal integration, pulsed energy, integrated energy
• Data Logging: Up to 1,000 measurements per channel
• Channels: Dual channel configuration
Control & Interface
• Triggering: Advanced triggering capabilities with reaction to and provision of triggers; comparator outputs
• Interfaces: RS-232 and IEEE-488 (GPIB)
• Power Supply: 115 V AC with voltage selector switch
• Display: Annunciated display panel
Physical
• Dimensions: 18 × 18 × 12 inches
• Weight: 15 lbs
– Key Features
• High measurement sensitivity, flexibility, and speed across infrared spectrum
• Simple direct panel access to basic functions with shallow menu structure for advanced settings
• Sophisticated automation capabilities for complex measurement setup
• Supports thermopile detectors for pulsed laser energy measurement
• NIST-traceable calibration through planned Newport Corporation intervals
– Typical Applications
• Infrared optical power characterization
• Pulsed and CW laser energy measurement
• Wavelength verification and exposure monitoring
• Automated test sequences with data logging
– Compatibility & Integration
The 2835-C accepts Newport optical detectors with associated calibration modules. Operation requires compatible detector and calibration module installation. The instrument communicates via standard laboratory interfaces for integration into automated test systems.
