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v5.20 - Classic DocuShare Home - Trimble

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I Laser Rangefinders<br />

C<br />

The Asset Surveyor software displays the distance measurement in the<br />

currently configured Distance units. The laser azimuth (bearing) is<br />

converted to a true North azimuth. If the configured North reference is<br />

‘True’, it is immediately displayed as a true North bearing (with a ‘T’<br />

suffix); otherwise it is displayed as a magnetic North bearing (with a<br />

‘M’ suffix).<br />

Note – If the configured Magnetic declination is ‘Auto’, the Asset<br />

Surveyor software’s internal magnetic declination model is used to<br />

convert the magnetic laser bearing to a true north bearing. Otherwise,<br />

the manually entered declination is used for this conversion.<br />

Warning – The LEDHA-GEO always emits compass bearings relative to<br />

magnetic north. You must either specify your local magnetic declination or<br />

set the Magnetic declination field to ‘Auto’, otherwise the Asset Surveyor<br />

software does not correctly convert the magnetic compass bearings to<br />

true north.<br />

The LEDHA-GEO takes a few seconds to take a laser distance reading<br />

(although the bearing and inclination can be read almost immediately).<br />

If the Asset Surveyor software receives a message from the<br />

LEDHA-GEO which lacks a distance measurement, the following<br />

warning message is displayed:<br />

372 TSC1 Asset Surveyor Operation Manual

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