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OMC-160-3 

Manual

 

 

Page 13

 

5  Commissioning 

 

5.1  Commissioning procedure 

1)  Check the connections. 
2)  Install the interface and (if applicable) the display instrument. Normally the OMC-160 anemometer is 

powered through the interface unit. 

3)  Align the wind vane. 

5.1.1  Alignment of the wind vane 

 
The wind direction sensor needs to be aligned: 
 

To North; usually for land based or fixed applications. 

To the bow; usually for shipborne installations. 

 

Procedure:

 

Sensor needs to be powered 

Vane needs to be tightened 

Open the junction box. 

Direct the vane exactly to North or the bow; whichever is applicable. 

Press the alignment button, after approx. 3s until the alignment LED

’s start flashing, 

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 wind direction reading of the OMC-160 anemometer depends fully on 
the alignment of the vane! 
 

 
It is impossible to calibrate the OMC-160 anemometer in the field. However, the following procedure 
makes sure that the installation was successful. 
 
4)  Check the direction readings. A various wind directions, make sure that the change in reading 

corresponds to the direction of the vane. For interpretation of the wind direction reading, remind that 
the wind direction is defined as the direction where the wind comes from. The readings should be 
reasonable. 

5)  Check the wind speed reading. Table 4 can be used for estimation of the actual wind speed. The 

reading should be reasonable. 

 

 

Содержание OMC-160-3

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

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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