The Ohmic PUP-50 is a portable ultrasound power meter engineered for precise measurement of therapeutic ultrasound transducer output. Operating via radiation force balance methodology, it measures acoustic power delivered to a 45° air-backed cone target immersed in degassed water. The instrument delivers 4-digit LCD readout with ±50 mW resolution across a 0 to 30 W range, supporting transducer frequencies from 0.5 to 10 MHz. Compliant with AIUM, JCAHO, FDA, and NIST standards, the PUP-50 provides five-point NIST-traceable certification for biomedical and clinical validation workflows.
Technical Specifications
• Measurement range: 0 to 30 W
• Minimum detectable power: 50 mW
• Resolution: ±50 mW
• Display sensitivity: 0.05 W
• Accuracy: ±3% at 10 W, 25°C
• Transducer frequency range: 0.5 to 10 MHz
• Maximum transducer diameter: 3 inches
• Integration time: 2.5 seconds
• Display: 4-Digit LCD
• Weight: 9.5 pounds
• Depth: 6 inches
• Power input: 120 VAC adapter with 6 ft. cord; 220/240 VAC optional
• Data output: Bi-directional USB or RS-232
• Test medium: Degassed water
• Calibration verification: 1-gram weight standard (14.65 W equivalent)
– Key Features
• Radiation force balance measurement in sonic-absorbent-lined test tank
• Automatic zeroing and stabilization
• Selectable readout in Watts or Grams
• Measures total pulsed or continuous power output
• Manual or automatic print control
• Dual ball-joint holder-positioner with 360° adjustment; accommodates objects up to 2 inches diameter, 1 pound maximum
• Compact design in padded carrying case with accessory storage
• Airline-compatible dimensions
– Typical Applications
• Therapeutic ultrasound transducer calibration and validation
• Biomedical power output documentation
• Clinical equipment certification
• Regulatory compliance verification
– Compatibility & Integration
USB and RS-232 interfaces enable direct computer control and automated data logging. Operates from 120 VAC or optional 220/240 VAC supply.
