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OMC-160-3

Manual

Page 5

1 Introduction

The Observator OMC-160-3 is the 3

rd

generation of this popular anemometer.

The sensor is often mounted in harsh conditions of the marine and offshore environment and it has
proven to be robust and reliable over the years. The OMC-160-3 continues the robust build quality
improved with the latest technology, which will make it even more reliable and easier to commission.

This manual is intended for the engineer doing the installation and commissioning and can also be used
as reference for the operator.

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Summary of Contents for OMC-160-3

Page 1: ...OMC 160 3 OMC 160 3 Anemometer Manual Version 3 2 November 2017 Author Observator Instruments...

Page 2: ...OMC 160 3 Manual Page 2 Revisions 2 04 November 2013 previous versions OMC 160 2 3 0 May 2017 OMC 160 3 introduction 3 1 August 2017 OMC 160 3 reviewed manual 3 2 November 2017 Update specifictions...

Page 3: ...issioning 13 5 1 Commissioning procedure 13 5 1 1 Alignment of the wind vane 13 6 Maintenance 15 6 1 Maintenance schedule preventive maintenance 15 6 2 Removing the OMC 160 anemometer from its locatio...

Page 4: ...OMC 160 3 Manual Page 4 Page intentionally left blank...

Page 5: ...rine and offshore environment and it has proven to be robust and reliable over the years The OMC 160 3 continues the robust build quality improved with the latest technology which will make it even mo...

Page 6: ...moving parts which can rotate fast during strong winds Keep clear of the cup and vane during strong winds The Observator OMC 160 Anemometer is usually installed at height Technicians maintaining the s...

Page 7: ...sensor is a rotary cup type unit manufactured in stainless steel and polycarbonate The three cups are cone shaped for optimum response to varying winds The vane unit is made in stainless steel 3 4 Th...

Page 8: ...g arm cup unit vane unit U bolts mounting materials this manual on CD Note that additional materials that were simultaneously ordered for the same order might be packed in the OMC 160 box 4 2 Location...

Page 9: ...Securely tighten the nuts on the U bolts preventing the nuts vibrate loose 4 5 Assembly of cup and vane The wind sensors are shipped with the wind vane and cups disconnected from their appropriate un...

Page 10: ...OMC 160 3 Manual Page 10...

Page 11: ...Recommended cable shielded 2x2x0 75mm2 like OMC 494 Terminal 5 must be used for NMEA shield connection Terminal 8 is meant as 0 reference in case the receiver has a RS422 input a separate wire should...

Page 12: ...B On Direction within 1 5 degrees N Direction is 0 degrees Direction within 355 359 degrees 4 6 3 Status LED s Table 3 Lower LED s on juntionbox PCB On Off S Speed sensor OK Speed sensor fault D Direc...

Page 13: ...ing release the button Check alignment when correct the middle LED N should lit Repeat procedure if a correction is required Close the junction box and tighten carefully Note that the accuracy of the...

Page 14: ...pray Large branches move wires whistle umbrellas are difficult to control 7 28 33 13 9 17 1 Near gale Mounting sea 4 m with foam blown in streaks downwind Whole trees in motion inconvenience in walkin...

Page 15: ...the power supply tot the sensor display data collection unit or PSU 2 Remove the vane unit and the cup unit The cup unit and the vane blade are made of light materials for optimum response to the win...

Page 16: ...tions First remove the cup unit or vane unit from their body by unscrewing the capped nut and lifting the unit Unscrew the bearing housing 2 or 3 6 5 Replacement of ball bearings and sensor PCB s Firs...

Page 17: ...cified 1 First remove PCB see Sensor PCB 6 removal 2 Remove the 3 columns 4 3 Loosen the sensor element hex screw 8 4 Remove the sensor element 5 5 Remove the bearing cover plate 3 Speed head only if...

Page 18: ...renewed care should be taken not to apply excessive force on the new bearings When re installing the complete bearing housing with the sensor PCB s care should be taken that the internal wiring is pro...

Page 19: ...atus A Data Valid V Data invalid WIVER 1 1 WI OBS c c c c c c c c c c x hh CR LF 1 2 3 4 5 6 7 8 9 10 1 Total number of sentences needed 1 to 9 1 2 Sentence number 1 to 9 1 3 Device type WI 4 Vendor I...

Page 20: ...nd speed 0 75 m s Accuracy wind speed Better than 2 Threshold speed Approx 0 3 m s Distance constant 1 68 meters Measuring range wind direction 0 360 no gap Direction accuracy non linearity etc 2 degr...

Page 21: ...tacting Type and model of equipment Serial number Original order number and year of purchase If it is impossible to find out where the instrument was purchased please contact the manufacturer Observat...

Page 22: ...in a dry place Note that this is required as the system is only weatherproof when mounted in an upright position 10 3 Reshipping the instrument Whenever the OMC 160 3 anemometer is shipped e g for cal...

Page 23: ...n support software Connect to the NMEA output of the sensor terminal 3 4 and setup the terminal 4800 8 n 1 Power cycle the sensor and press ESC within 5s The main menu should appear OMC 160 3 Main Men...

Page 24: ...OMC 160 3 Manual Page 24 12 Dimensional Drawing...

Page 25: ...OMC 160 3 Manual Page 25 13 EU Declaration of Conformity...

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