Environmental Commands; Available Environmental Commands; Environmental Command Descriptions; Ea - Heading Alignment - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual

Environmental Commands

The H-ADCP uses the following commands to control the environmental and positional information that
affects internal data processing.

Available Environmental Commands

This section lists the available Environmental commands.
>e?
EA = +00000 -------------- Heading Alignment (1/100 deg)
EB = +00000 -------------- Heading Bias (1/100 deg)
EC = 1500 ---------------- Speed Of Sound (m/s)
ED = 00000 --------------- Transducer Depth (0 - 65535 dm)
EH = 00000 --------------- Heading (1/100 deg)
EP = +0000 --------------- Tilt 1 Sensor (1/100 deg)
ER = +0000 --------------- Tilt 2 Sensor (1/100 deg)
ES = 00 ------------------ Salinity (0-40 pp thousand)
ET = +2500 --------------- Temperature (1/100 deg Celsius)
EX = 11111 --------------- Coord Transform (Xform:Type; Tilts; 3Bm; Map)
EZ = 1111101 ------------- Sensor Source (C;D;H;P;R;S;T)
>

Environmental Command Descriptions

EA - Heading Alignment

Purpose Corrects for physical misalignment between Beam 3 and the heading reference.
Format EA±nnnnn
Range ±nnnnn = -17999 to 18000 (-179.99 to 180.00 degrees)
Default EA+00000
Recommended Setting. EA is typically set to zero (default), since Beam 3 is used as the heading
reference for stationary deployment.
Description EA is a heading alignment angle (referenced to Beam 3) used as a new zero reference for
heading output and for transformation to earth coordinates. Use the EB-command to cor-
rect for heading bias (e.g., magnetic declination).
Example The H-ADCP is mounted in place on a moving ship. Beam 3 has been rotated 45 clock-
wise (+45) from the ship's centerline. Use the EA command to tell the H-ADCP where
beam 3 is in relation to the ship's centerline. To convert +45 to an EA-command value,
multiply the desired alignment angle in degrees by 100:
EA = +45.00 × 100 = +4500 = EA+4500
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
May 2015
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