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Heavy-duty rotary encoders: tough enough for offshore

Absolute Rotary Encoder by POSITAL Fraba

POSITAL's heavy-duty absolute rotary encoders feature shock and vibration resistant magnetic measuring elements housed in rugged 316L stainless steel housings that make them ideal for use in harsh environments such as offshore facilities, seagoing vessels, construction equipment or military vehicles.

With highly effective seals on the shaft entry and cable connection (IP68 and IP69K level protection), these devices are capable of withstanding salt water, acid, dirt, dust, even water jets and aggressive cleaning procedures. Mounted on sturdy ball bearings, the shaft can withstand mechanical forces of up to 300 N (67 pounds). 
POSITAL magnetic encoders use a highly reliable measurement technology that provides 13-bit resolution (8192 steps per revolution). Multi-turn models are available with virtually unlimited range (limited only by memory size). The internal rotation counter uses a unique self powered technology that enables these devices to keep track of their absolute position even when movement occurs during control system power outages. This eliminates the need for backup batteries and reduces maintenance requirements. Cost effective POSITAL encoders are available with a simple serial (SSI) interface or more sophisticated CANopen, DeviceNet and SAE J1939 field bus interfaces. Analog interfaces (4-20mA or 0-10V) are also available, making these encoders a highly reliable alternative to potentiometers.

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