- Summary HY1200B Self-recording SVP employs the most cost-effective methods 'sing-around probe' to measure automatically the velocity of sound, the temperature and the depth in the water where the transducer is located on for calibrating echosounders, sonar systems and other acoustic instruments. It is extensively used in the fields of hydrography, geophysical exploration, militarv application etc.cation etc. - Key Parameters Sing-around frequency 10.7MHz Sample Rate 5MHz Capacity of records 4000RS Interface RS485, 9600 BAUDS, 8n1 Power requirement One Ni-CD Cell Battery, 8.4VDC - Features Synchronous sampling for velocity, temperature and pressure (depth) Involatile memory up to 4000 samples Personal computer or palm PC available for hand terminal Depth triggering for data recording Operating software based on Windows in Chinese version Compatible with HYPACK software for data output format Real-time displaying and printing velocity and temperature parameters Direct calibration using average sound velocity Featuring lower power consumption with 8.4VDC Ni-CD cell Fixed-time calibration & checking in the factory availablelablelable