333-F490-01 -- LIST OF SENSORS.pdf

PROXIMITY SWITCHES AND OTHER SENSORS

TRUNNION

Clutch disengaged (LS) Brake engaged (LS) Davit in latch position (LS) Davit in breasted-in position (LS) Block-to-block (LS) Approaching block-to-block (LS) Seated (LS) Approaching Seated (LS) Hydraulic pressure switch (PS)

BALL JOINT

Clutch disengaged (LS) Brake engaged (LS) Davit in latch position (LS) Davit in breasted-in position (LS) Block-to-Block (LS) Approaching block-to-block (LS)

DRAGHEAD

Clutch disengaged (LS) Brake engaged (LS) Slow speed gear ratio (LS) Davit in latch position (LS) Davit in breasted-in position (LS) Block-to-block (LS) Approaching block-to-block (LS) Swell comp position (ROT) Swell com pressure (PS)

Draghead out of position (INC)

LS: Limit Switch – Non-contact inductive proximity switch PS: Pressure Sensor – Pressure transducer rated to the full system operating pressure similar to Danfoss MB5100.

ROT: Rotary position encoder INC: Inclinometer similar to SPECTROTILT. Used to measure draghead wire angle and determine (along with draghead depth) if draghead has begun to drift under the ships hull.