35RDC Composite Damage Checker The 35RDC is a simple Go/No-Go ultrasonic gage designed to detect subsurface defects caused by impact damage on aircraft composite structures. Features a backlit LCD that displays the word GOOD if no subsurface damage is found or the word BAD when it detects subsurface damage. 35RDC Specifications* Display Modes ? Digital Readout Good, Bad or Beyond CAL thickness ? Advanced user setting shows A-scan or waveform. For use by qualified NDT personnel only. Thickness Measurement Range**: 0.63 mm to 22.8 mm (0.025 in. to 0.900 in.) ** Thickness range depends on material, transducer, and surface conditions. Material Velocity: Fixed velocity for carbon fiber aerospace composite Transducer Frequency: 5.0 MHz Measurement Update Rate: 20 Hz Deviation alarm set points: Programmable +/- from calibration point. Set in advance setup Power Supply Battery: 3 AA alkaline or NiMH batteries Operating Time: 150 hours typical battery life; 30 hours continuous with backlight on Low Battery Indicator: Continuously indicates battery status Battery Saver: Auto Power Off/Continuous On AC Power Supply: Optional General Environmental IP65 compliant: Splash-proof, impact-resistant case. Sealed, color-coded keypad Operating Temperature Range: -10° C to +50° C (+14° F to 122° F) Size: (W x L x H) 84 mm x 152 mm x 84 mm (3.31 in. x 6.0 in. x 1.50 in.) Weight: 0.24 kg (8.5 oz) Standard Inclusions Wrist strap, 3 AA batteries, 5 MHz transducer, transducer cable, couplant, carrying case, rubber protective boot with neck strap, instruction manual, two-year limited warranty Optional Accessories Features ? For use on solid laminate structure aerospace composites ? Simple one-button calibration ? Thickness range 0.63 mm to 22.8 mm (0.025 in. to 0.900 in.) ? Simple Good/Bad/Beyond Cal display readout ? Back light matrix display with user help text ? AA battery operation ? Handheld, weighing only 0.24 Kg (8.5 oz.) ? Energy saving Auto Power off feature ? Long battery life, 150 hours typical ? Battery life indicator