The Gamma Scientific / UDT Instruments S370 is a single-channel optometer delivering precise light measurements across photometric, radiometric, and fiber optic power applications. Microprocessor control and a 16-character LCD display guide parameter programming via a 10-function keypad or remote IEEE-488 interface. The instrument accepts multiple UDT Radiometric Sensor Heads through front-panel BNC connectors, adapting to diverse measurement requirements in laboratory, research, and quality control environments.
## Technical Specifications
• **Display:** 16-character LCD, 0000–9999 range
• **Range Control:** Automatic or manual selection
• **Measurement Modes:** Linear, Log, Log Ratio, Ratio, and Responsivity
• **Accuracy:** ±0.2% + 1 count (Linear and Log modes)
• **Bandwidth:** 9.0 Hz
• **Analog Output:** ±2.5 VDC
• **Calibration:** NIST-traceable via plug-in EPROM modules pre-programmed by UDT’s calibration lab
## Key Features
• Five measurement modes enable attenuation analysis, reference-level comparisons, and uncalibrated sensor head responsivity programming
• Plug-in calibration architecture supports multiple EPROM modules for flexible sensor head compatibility
• Analog bar graph display on front panel for real-time visual feedback
• Compact, lightweight design (4.0 pounds, 8.250 in × 9.250 in) facilitates portable deployment
• Manual or automatic range switching optimizes resolution across measurement scales
## Electrical Specifications
• **AC Input:** 90–132 VAC or 180–264 VAC, 47–440 Hz, rear-panel selectable; 12 VA maximum draw
• **Fusing:** 1/8 AMP (115 VAC) or 1/16 AMP (230 VAC), low-blow, 3AG, 0.25″ × 1.25″
• **DC Input:** 9–15 VDC, 500 mA maximum, rear-panel mounted (Switchcraft 760 connector)
## Compatibility & Integration
• IEEE-488 digital interface enables remote data transfer, reception, and programming via Lab Windows drivers
• Accepts shielded cables (HP10833x or Io-Tech CA-7-X recommended)
• Removable BNC connector modules on front panel support rapid sensor head exchange
• Compatible with any linear photodiode sensor head
