Accession Number : ADA304487

Title :   Evaluation of the Scubapro MKlO and MK2O SCUBA Regulators for Use In Cold Water.

Descriptive Note : Technical rept. Jan 94-Jan 96,

Corporate Author : NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL

Personal Author(s) : Clarke, J. R. ; Rainone, M.

PDF Url : ADA304487

Report Date : JAN 1996

Pagination or Media Count : 14

Abstract : NEDU tested the breathing effort and susceptibility to freeze-up of the Scubapro MKl0 and MK2O SCUBA regulators. The regulators were tested in 28 deg F (-2 deg C) salt water, at depths to 198 fsw (60.7 msw). Five samples of each model were tested. The probability of regulator failure was computed from the number of cold induced incidents, and the time to failure for each incident. Under these rigorous conditions, the probability of failure for the Scubapro MK2O was relatively high, hut was lower than in the MKlO. There were a large number of high breathing pressure events during the resistive effort measurements in both regulators at a 1500 psi supply pressure. Performance was improved at 500 psi supply pressures. Neither the Scubapro MKlO nor the MK2O is recommended for Navy use in sea water at 28 deg F and depths to 190 fsw. (MM)

Descriptors :   *SCUBA APPARATUS, LOW TEMPERATURE, NAVY, REGULATORS, FREEZING, RESPIRATION, COLD WATER, BREATHING APPARATUS, PRESSURE REGULATORS.

Subject Categories : Life Support Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE