Nortek Vector Comprehensive Manual

Also see for Vector: Quick start guide

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Nortek Vector Comprehensive Manual Manual pdf 66 page image

Comprehensive Manual66© 2018 Nortek AS3) Find the X-marking on the probe (which defines beam 1) or canister (on cable probe system) andlet X point away from you.4) Tilt the instrument to about 10 degrees to the right, and verify that the roll reading has a positivesign, and that the value is around 10 degrees.5) Tilt the instrument to about 10 degrees to the left, and verify that the roll reading has a negativesign, and that the value is around 10 degrees.6) Tilt the instrument about 10 degrees forward, and verify that the pitch reading has a negative sign,and that the value is around 10 degrees.7) Tilt the instrument about 10 degrees backward, and verify that the pitch reading has a positivesign, and that the value is around 10 degrees.8) Turn the instrument upside down, and perform steps 2-7 again. Note that the signs will still be thesame, assuming that X is still pointing away from you.Figure: Pitch and Roll definitionsAlso confirm that the last status bit changes from 0 to 1 when the probe orientation is changed frompointing down (as the figure above) to pointing up. For the Vector the instrument is defined to be inthe UP orientation when the communication cable end of the canister is on the top of the canister, iewhen the probe is pointing down (as in the figure above). Be aware that when the Vector is running inContinuous mode, the Vector needs to be oriented in the correct orientation when starting it – up/down orientation will not be updated while measuring. When the Vector is running in Burst mode, theorientation is checked/updated at the beginning and end of each burst.Specifications:Accuracy/Resolution: 0.2°/0.1°3.1.2.3 Compass (Vector)The compass measures the earth's magnetic field. Combined with the tilt sensor on the head, thecompass enables the instrument to obtain heading information. These data makes it possible toconvert velocity measurements to Earth coordinates. Without a compass, the instrument stillmeasures the tilt.To test the compass:Hold the instrument away from any magnetic influence (like metal objects, cell phones etc.)Point X towards NorthSlowly rotate it clockwise around Z, and verify that the compass reports increasing degrees (0, 90,