Laser Technology Criterion RD 1000 - Section 6 - Dendrometer Functions; Diameter Mode

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 20
Section 6 - Dendrometer Functions
• Diameter Mode: Acquire a direct read-out of the height and diameter
of a tree at any point (or multiple points) along the stem.
• HT/Diameter Mode: Determine the height at which a specific target
diameter is reached.
Diameter Mode
Refer to the instructions below to acquire a direct read-out of the height and
diameter of a tree at any point (or multiple points) along the stem ⎯ from any
convenient distance away. For increased accuracy at further distances from the
tree, attach the Magnifier and turn on the Magnification Constant (page 15).
1. Press the MODE button until the external LCD displays the
DIAMETER Mode Indicator, the HD Measurement Prompt (flashing),
the appropriate Units Indicator ("F" or "M"), and the EDIT Function
Indicator. This is prompting you enter the horizontal distance to the
target tree.
2. Enter the horizontal distance.
¶ Valid Values: 1.65 - 999.90 feet or 0.51 - 304.76 meters.
¶ To automatically fill-in: Aim and fire your LTI laser range finder
to download the measured HD value into the numeric display.
The display will automatically advance to the next step.
¶ To manually enter: Measure the distance using a tape measure,
press the EDIT button, and use the arrow buttons to edit the
value.
a. Press the UP or DOWN button to increase/decrease the
value.
b. Press the FWD or BACK button to move to next/previous
digit.
c. Press the ENTER button to accept the HD value.
¶ If you want to re-enter the horizontal distance (either manually
or with a laser), press the BACK button and enter a new HD
value.
4. The external LCD displays the DIAMETER Mode Indicator, the
ANGLE Measurement Prompt Indicator (flashing), the DEG Units
indicator, and the message “bASE” is prompting you to take the
base angle measurement to the tree. This message is also displayed
in the numeric area of the in-scope LED.
5. Looking through the sighting scope, press-and-hold the TRIGGER
button to activate the illuminated in-scope LED Measurement Bar
Scale.
6. Aim to the base of the target tree, and release the TRIGGER button
to lock the inclination measurement.