The DDC HSR-203 Synchro and Resolver Angle Indicator is a precision digital instrument that converts synchro or resolver signals into accurate angular readouts. Operating across a wideband frequency range, it delivers sub-millidegree resolution without requiring programming, making it ideal for high-precision angle monitoring in aerospace and industrial environments.
Technical Specifications
• Accuracy: ±0.005°
• Resolution: ±0.001°
• Input Signal Frequency: 47 Hz to 1000 Hz (wideband)
• Signal to Reference Phase Shift Tolerance: ±50° maximum
• Display Format: Programmable 0–360° (unipolar: 0–359.999°) or ±180° (bipolar: 0 to +179.999°)
• Tracking Loop: Type II servo loop with zero velocity lag up to specified rates
• Input Channels: One front panel input plus two rear connector inputs
• Power Supply: 28 V DC or 115/230 V AC, 50/60 Hz
• Digital Output: BCD angular data
• Weight: 10 lbs
• Dimensions (Rack Mount): 3.5″ (H) × 19″ (W) × 8.4″ (D)
– Key Features
• Built-in Test (BITE) detects over-velocity and internal malfunction with logic-level output and front-panel display
• Front-panel display ambiguity and fault indicators
• TTL-compatible control logic for input channel selection, input type selection, bandwidth selection, and unipolar/bipolar mode switching
• Control selectable from front panel or remotely via rear connector
• IEEE-488 interface available as an option (Model SR203-488)
• Rugged metal enclosure with portable carrying handle, half-rack, or 19″ rack-mount configurations
• Includes mating connector (Amphenol 17-10500-1) and detachable line cord (Belden 17250)
– Compatibility & Integration
Accepts synchro or resolver input signals. TTL-compatible control interface enables straightforward system integration with external instruments and automated test setups.
