Hernis Camera Stations Receive DNV Approval
There are strict requirements for cameras that are to be used onboard vessels and on oil installations. The fact that the Hernis camera stations fulfilled all DNV's marine requirements for environment and EMC is seen as an acknowledgement for superior standard and quality.
The increasing use of cameras onboard vessels and platforms has lead to a major focus on these products from the classification societies' point of view. The increased use of cameras for safety applications results in a demand that the products should function satisfactory in the extreme conditions that can occur onboard a vessel or on a platform.
The type approval is a systematic procedure used to confirm that a product type is in conformity with a set of pre-determined requirements. These requirements are based on DNV's Rules for Classification of; Ships, Mobile Offshore Units, and High Speed Light Craft and Naval Surface Craft. The DNV Standard for Certification 2.4 specifies the environmental test specification applicable to all instrumentation and automation equipment. The standard encompasses both EMC and physical environmental testing, such as vibration temperature and humidity.
The requirements are very strict and include operating at ambient temperatures varying from -25 °C to +70 ° C, depending on intended location onboard. The vibration test is carried out in the x, y as well as the z-axis in the frequency of 3 – 100Hz.
EMC testing includes both emission and immunity covering electrostatic discharge as well as radiated susceptibility, transient, surge and burst.
The tests were carried out in order to fulfil all relevant class- requirements in close cooperation with Hernis Scan Systems. We anticipate that this will give Hernis access to an even broader market within harsh environments and rough conditions world wide.
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