Kestrel 4000 User Manual download pdf (Page 17)

KESTREL 4500 & KESTREL 4600 SETUP & FUNCTIONS CONT.

MEASURING DIRECTION

The Kestrel 4500’s and 4600's digital compass must

be vertical to achieve accurate readings. Keep the unit

positioned as close to vertical as possible when using

any compass-related feature. After opening the battery

door, you must re-run the calibration routine or readings

will not register. For maximum accuracy, the impeller

should be spinning while measuring to eliminate its

magnetic pull.

True North vs. Magnetic North Readings

The Kestrel 4500 and 4600 default Direction display

mode is Magnetic North.

To view Direction in True North mode:

• In the Direction screen press

• Use

or to choose your mode.

• If you choose True North, use

to highlight “Varia-

tion”, then use

or to input the Variation for your

location.

To measure Direction:

• Hold the unit vertically and point the BACK of the unit

toward the direction you want to measure.

• The unit will display the cardinal direction and degrees.

The Direction measurement does not record Max and

Average and will display N/A on that mode screen.

MEASURING HEADWIND/TAILWIND & CROSSWIND

The Kestrel 4500 and Kestrel 4600 automatically calculate

Headwind and Crosswind with respect to a runway or

target direction. You must rst set the “Heading” to view

these measurements:

• Press

while on the Headwind or Crosswind screen.

• Use

or to choose “Auto Set” or “Manual Set”,

then press

In Auto Set: Point the unit down the runway or target,

then press

to automatically set the heading.

In Manual Set: Use

or to enter the known runway

or target heading, and press

to save.

Both screens will always display the Magnetic North

heading at the top (even if the Direction screen is set to

True North mode).

• After setting the heading, scroll to the desired param-

eter and orient the Kestrel so the wind blows directly

through the impeller.

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Kestrel 4000 User Manual Page 17

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