Laser Technology Criterion RD 1000 User manual

The 1st Electronic BAF-scope / Dendrometer
User’s Manual
3rd Edition

LTI Criterion RD 1000 User’s Manual
Third Edition Part Number 0144759
Copyright Notice:
Information in this document is subject to change without notice and does not
represent a commitment on the part of Laser Technology Inc. No part of this
manual may be reproduced in any form or by any means, electronic or mechanical,
including photocopying, recording, or information storage and retrieval systems,
for any purpose other than the purchaser's personal use, without the express written
consent of Laser Technology, Inc.
Copyright © Laser Technology, Inc., 2005. All rights reserved.
First Edition: June 2005
Second Edition: June 2005
Third Edition: May 2006
Patents:
This product is covered by pending patent applications and/or the following
issued U.S. Patent: 6,738,148
Trademarks:
Criterion, Impulse, and TruPulse are trademarks of Laser Technology, Inc.
All other trademarks are the property of their respective owner.
LTI Contact Information:
Laser Technology, Inc.
7070 S. Tucson Way
Centennial, CO 80112 USA
Phone: [phone]
1-800-790-7364 (USA and Canada)
Fax: [phone]
Web Site: www.lasertech.com
Email: [email protected]
Criterion RD 1000 Reference Information:
Record information about your RD 1000 in the table below.
You can find this value: Value
Serial
Number On the serial number sticker affixed to the RD 1000.
When unit is turned ON.Firmware
Revision
Number See page 12 for more information.
On the sticker affixed to the Magnifier.Magnification
Constant See page 16 for more information.

Criterion RD 1000 User’s Manual Table of Contents
Page 1
Criterion RD 1000 User’s Manual
Table of Contents
Section 1 - Introducing the Criterion RD 1000 . . . . . . . . . . . . . . . . . . . 3
Features . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . 3
Measurement Types . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . 3
Unpacking your RD 1000 . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . 4
Views of the RD 1000 . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . 4
Section 2 - Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Section 3 - Basic Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Batteries . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . 6
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Low Battery Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Key Pad . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . 7
Other Buttons . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 8
Display Backlight . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . 9
Edit Function . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . 9
Error Codes . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . 10
External LCD . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 11
Display Indicator Test . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . 11
Firmware Revision Number . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . 12
In-scope LED . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . .. . 12
Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Measurement Bar Scale . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 13
Neck Strap . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 13
Section 4 - System Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Displaying Percent Slope . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . 14
Using the Magnifier . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . 15
Attaching the Magnifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Removing the Magnifier . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . 15
Turning the Magnification Constant ON or OFF . . . . . .. . . . . . . . . . 15
Displaying the Magnification Constant . . . . . . . . . . . . .. . . . . . . . . . 16
Editing the Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Selecting Measurement Units . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . 16
Aligning the Tilt Sensor . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . 17

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 2
Section 5 - BAF-scope Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
BAF Mode . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . 18
In/Out Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Section 6 - Dendrometer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Diameter Mode . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 20
Height/Diameter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Section 7 - Serial Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Data Format . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . 24
Format Parameters . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 24
Impulse Settings . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 25
TruPulse Settings . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . 25
Input Data String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Output Data String . . . . . . . . . . . .. . . . . . . . . . . .. . . . . . . . . .. . . . . . . . 25
Tree Diameter Download Message . . . . . . . . . . . . . . . . . . . . . . . . . 26
Examples . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . 26
Raw Inclination Download Message . . .. . . . . . . . . .. . . . . . . . . . . . 27
Example . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . 27
Section 8 - Care & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Protecting from Moisture and Dust . . . . . . . . .. . . . . . . . . . . . . . . . . .. . 28
Protecting from Shock . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . 28
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Cleaning . .. . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . 28
Testing the Display Segments . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . 29
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Section 9 - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Section 10 - Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Section 1 - Introducing the Criterion RD 1000
Page 3
Section 1 - Introducing the Criterion RD 1000
Congratulations on the purchase of your Criterion RD 1000, the first electronic
BAF-scope/dendrometer. Laser Technology, Inc. (LTI) designed the RD 1000
specifically to address the real world needs of forestry professionals. The RD 1000
is primarily an optical device that provides real-time results for calculations that
have to do with the BAF principle, tree height and diameter.
Features
• In-scope LED offers adjustable brightness levels and projects a
measurement bar scale that represents a subtended horizontal angle.
The RD 1000 uses this angular measurement and the horizontal distance
to the target tree to calculate the diameter of the tree stem. The
horizontal distance is the level distance between the eyepiece and the
point of measurement on the face of the tree. To enter the horizontal
distance to the target tree, you may:
¶automatically download measurement data from an LTI laser
range finder.
¶measure the distance to the tree using a tape measure and
then manually enter the value.
• Tilt sensor measures vertical angles, which the RD 1000 uses to
determine the slope-reduced measured distance and to calculate height.
The tilt sensor is capable of taking +/- 90º measurements (360º full
circle).
• Attachable Magnifier can be used when measuring diameters in
situations that require maximum measurement resolution.
• Ergonomically designed for handheld use, rugged, water and dust
resistant, and is small enough to carry in your vest pocket.
• Can be mounted on a tripod or monopod for increased precision.
• Works seamlessly with an LTI laser range finder and an external data
collector.
Measurement Types
The RD 1000 offers five different measurements. Of these five, three produce
results that may be downloaded to an external data collector.
•BAF: Visually estimate if trees fall “In” or “Out” of a given plot as related
to the specified Basal Area Factor.
•In / Out: Use the internally stored plot radius factors to determine the
status of a “borderline” tree.
•Diameter: Determine the diameter of a tree at any given height. Result
may be downloaded to an external data collector.
•Height / Diameter: Verify the height at which a specified diameter is
reached. Result may be downloaded to an external data collector.
•Raw Inclination: Displayed as Percent Slope. Result may be
downloaded to an external data collector.

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 4
Unpacking your RD 1000
When you unpack your RD 1000, check to make sure that you have received
everything that you ordered, and that it all arrived undamaged.
RD 1000 Basic Package:
FCriterion RD 1000
FMagnifier
FBatteries: AA (2) or CRV3 (1)
FCarrying Case
FLens Cloth
FNeck Strap (and anchor)
FUser’s Manual
Views of the RD 1000
Figure #1 shows two different views of the RD 1000.
LThe following items are available for use with your RD 1000. To learn
more about any of these, please contact your LTI Sales Representative
or an Authorized LTI Distributor.
FSerial Data Download Cable
(for use with an external data collector)
FLaser Serial Data Cable
(for use with an LTI laser range finder)
FTripod
FMonopod
Figure #1

Section 2 - Quick Start
Page 5
Section 2 - Quick Start
Now that you’ve unpacked and have been introduced to the RD 1000, this
section will help you get started with an example of a BAF measurement.
The BAF Mode is covered in more detail in Section 5 (page 18).
1. Install the batteries (page 6).
2. Press-and-hold the Power button for a approximately 2 seconds.
3. Select the measurement units.
a. Press the MODE button until the external LCD displays the
SYS Mode Indicator and the message “Prcnt” appears in the
main display.
b. Press the FWD button until the external LCD displays the UNITS
Status Indicator and the Unit Indicators are flashing.
Metric: M and CM Unit Indicators flashing.
Imperial:F and I Unit Indicators flashing.
c. Press the UP or DOWN button to toggle between Metric and
Imperial Measurement Units.
4. Press the MODE button until the external LCD displays the BAF
Mode Indicator, the EDIT Function Indicator, and the default
(or previous) BAF value.
5. If you want to use the same BAF value, go to step #6. To enter a
new BAF value, press the EDIT button and then use the arrow
buttons to edit the BAF value.
¶Valid Values: 1 - 127 (Imperial) or 0.3 - 29.1 (Metric).
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 the accept the new BAF value.
6. Looking through the sighting scope, press-and-hold the TRIGGER
button to activate the illuminated in-scope LED Measurement Bar
Scale and dynamic inclination tracking. The bar scale represents the
subtended horizontal angle away from the unit that corresponds
to the BAF value. The scale adjusts as you aim up or down a slope.
7. Aim to the tree DBH and release the TRIGGER button. The bar scale
is held and displayed in-scope LED for approximately 30 seconds.
L• The Magnifier has no practical application in the BAF Mode.
• If you are working in Imperial measurement units and want to set
the BAF value to tenth's of a whole number, such as 17.5 BAF:
1. Change the measurement units to Metric (see step #3 above).
2. Return to the BAF Mode (step #5 above) and enter the metric
equivalent of the Imperial BAF value that you want to use.
• Calculate the metric equivalent by multiplying the
Imperial BAF by 0.22957.
• For the above example, 17.5 x 0.22957 = 4.0.
3. Continue with steps #6 and #7 above.

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 6
Section 3 - Basic Operations
Batteries
Two AA batteries are required to power the RD 1000. Instead of AA batteries, you
may also use one CRV3 battery.
Installation
When installing the batteries, refer to Figure #2 and the instructions below.
Removing the Battery Door:
1. Use a coin to release the screw that secures the battery door. Turn
the screw counter-clockwise. The door will raise as the screw is
released.
2. Once the screw is released, lift the battery door to remove.
Installing the Batteries:
1. Insert the batteries as shown in Figure #2 above.
¶Insert the lower battery negative end first.
¶Insert the upper battery positive end first.
Replacing the Battery Door:
1. Insert the tab into the slot. The screw should align with the hole.
2. Use a coin to tighten the screw. Turn the screw clockwise. The door
lowers as the screw is tightened.
3. Do not over-tighten. The surface of the battery door should be level
with the surrounding surface.
LIf using one CRV3 battery, the battery compartment is designed so the
battery will only fit one way.
Figure #2

Section 3 - Basic Operations
Page 7
Low Battery Warning
The RD 1000 monitors the incoming battery voltage.
• When the voltage drops below 2.2V, the External LCD main display
flashes “LobAt” every 5 seconds, alternating with the normally displayed
information.
¶You should replace the batteries as soon as possible.
• When the voltage drops below 2.0V, the “LobAt” message stops flashing
and is displayed steady. At this point system operation is locked.
¶You must replace the batteries to return to normal system
operation.
Buttons
The RD 1000 has 11 buttons. Nine of the these buttons are located on the keypad
below the external LCD. The TRIGGER button is located at your index finger on
the front of the unit, and the Scale Adjust button is located at your thumb on the
back of the unit.
Key Pad
Figure #3 shows the keypad. The table below describes
the function of each button.
EDIT Activates the edit function (page 9).
↑ UP System Menu: Toggles value.
Edit function: Increases the digit value.
HUD brightness: Increases the value.
HUD When the Heads Up Display (HUD) is active, controls the
in-scope LED.
Short Press: Activates the in-scope LED and displays the
brightness value.
Long Press: Toggles the illuminated in-scope LED
Measurement Bar Scale from Solid to Gap or Gap to Solid.
BACK ←System Menu: Moves to the previous menu item.
Edit function: Moves to the previous digit (right to left).
Measurement: Moves to the previous step.
ENTER ↵Confirms function. Selects value.
Figure #3

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 8
Other Buttons
Figure #4 shows the TRIGGER button and the SCALE ADJUST button.
FWD →System Menu: Moves to next menu item.
Edit function: Moves to the next digit (left to right).
MODE Moves through the operating modes.
DOWN ↓System Menu: Toggles value.
Edit function: Decreases the digit value.
HUD brightness: Decreases the value.
Measurement result: Downloads data (page 25).
POWER When unit is OFF:
• Press and hold for a minimum of 2 seconds turns ON the
unit. For a brief time, all segments are displayed followed
by the firmware revision number, and then the unit is
ready for use.
• Press and Hold: external LCD shows all display segments
(10 seconds maximum).
When unit is ON:
• Short press turns the display backlight ON/OFF.
• Long press (2 seconds minimum) turns OFF the unit.
LTo conserve battery power, if no button presses are detected for a
period of 15 minutes, the RD 1000 automatically turns itself OFF.
TRIGGER
Short Press: (1) Activates the in-scope LED (stays lit
for 30 seconds if no additional buttons are pressed).
(2) Accepts in-scope target points (such as tree
base, etc.).
Press-and-hold: Activates the tilt sensor, and
measurements are dynamically updated. Upon
release, the inclination reading is locked.
SCALE ADJUST (+)
Increases the width of the illuminated in-scope LED
Measurement Bar Scale.
• Short Press: Increases the scale by one tick.
• Press-and-hold: Continuously increases the
scale width change.
SCALE ADJUST (-)
Decreases the width of the illuminated in-scope LED
Measurement Bar Scale.
• Short Press: Decreases the scale by one tick.
• Press-and-hold: Continuously decreases the
scale width change.
Figure #4

Section 3 - Basic Operations
Page 9
Display Backlight
When working in low-light conditions, you may find it easier to read the external
LCD if the display backlight is toggled ON. No matter what screen is displayed; the
display backlight may be toggled ON or OFF using a short press the POWER
button.
Edit Function
The RD 1000’s edit function allows you to manually enter numeric values. The
table below lists the editable values and the valid values for each value.
When you come across an editable value:
• System Mode: The external LCD will display the EDIT Function Indicator.
• Measurement Mode: The external LCD will display the EDIT Function
Indicator and the corresponding Measurement Prompt Indicator will be
flashing.
To edit a value:
1. Press the EDIT button. The active digit flashes.
2. Enter the desired value using the arrow buttons.
¶The ↑button increases the digit value.
¶The ↓button decreases the digit value.
¶The →button activates the next digit (left to right).
¶The ←button activates the previous digit (right to left).
3. Press the ENTER button to accept the value.
¶An E05 error code will be displayed if you attempt to enter an
invalid value.
LTo conserve battery power, you should only use the backlight when
necessary.
Editable Value
Valid Values
Imperial Metric
BAF value 1 - 127 0.3 - 29.1
Diameter 0.1 - 1400.0 inches 0.3 - 3500.0 cm
Horizontal Distance (HD) 1.65 - 999.90 ft 0.51 - 304.76 m
Magnification Constant 2.00 - 2.99

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 10
Error Codes
An error code will be displayed if the RD 1000 detects a problem with a
measurement. Depending upon the current function, error codes are displayed in
either the in-scope LED or the external LCD display. The table below lists and
explains the possible error codes.
Code Explanation Remedy
E01 Unstable inclination value. The
instrument is too unsteady to
produce an accurate reading.
• Steady the instrument
before releasing the
TRIGGER button.
E02 Calculation error. There was an
error in performing an internal
calculation caused by improper
measurement geometry. Likely
caused by a incorrectly entered
data value, or an incorrect target
shot from an external laser
device.
• Re-enter or re-shoot the
data.
E03 Data communication error. There
was an error in a received serial
data string from an external
device.
• Verify that the laser and the
RD 1000 are using the same
units.
• Verify the laser mode
(it should be in HD or VD)
and re-shoot.
E04 System memory error. There was
some type of failure of the
internal system memory. This
represents a memory checksum
failure of factory stored
parameters.
• If the error persists, contact
Laser Technology, Inc.
E05 Data entry error. An improper
value was entered during a
manual data edit operation (the
entered data was outside of
acceptable value limits).
• Check value and re-enter
data.
E06 Unable to display the input value
in the in-scope LED or external
LCD.
• Re-enter data.
• Hold the instrument within
tilt limits.
Unable to display the calculated
value. • Press the ENTER button to continue with the
calculation.

Section 3 - Basic Operations
Page 11
External LCD
Figure #5 shows the external LCD. You will notice that the main display is located
at the center of the screen and that display indicators are grouped by type.
Display Indicator Test
Refer to the instructions below and Figure #5 above to verify that all display
indicators are working properly.
1. Starting with the unit powered OFF, press and hold the POWER
button.
2. Verify that all indicators are displayed, by comparing the display to
the Figure #5 above.
3. Release the POWER button to start normal operation.
¶If you do not release the POWER button, the unit will power
down after approximately 10 seconds.
Mode Indicators Function Indicators
Unit
Indicators
Measurement Prompt IndicatorsStatus Indicators
Main
Display
Figure #5

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 12
Firmware Revision Number
The firmware revision number provides manufacturing information about your
RD 1000. Each time the RD 1000 is powered ON, the external LCD displays the
firmware revision number, “r 1.
xx ” (where ‘ xx ’ is a value from 00 to 99).
In-scope LED
When the Heads Up Display (HUD) is active, the HUD button controls the
in-scope LED.
• Short Press: Activates the in-scope LED and displays the brightness
value for approximately 3 seconds.
• Long Press: Toggles the illuminated in-scope LED between Measurement
Bar Scale between Solid Mode and Gap Mode.
Brightness
To accommodate working in different lighting conditions, you may adjust the
brightness level of the in-scope LED. The brightness value is stored in memory.
The last value used is maintained when the unit is powered ON. Refer to the
instructions below to display and change the brightness value.
1. Press the HUD button to activate the in-scope LED. Both the
in-scope LED and external LCD display the brightness value
as “br X”.
¶Where ‘X’ is a value from 1 to 7.
2. Press the UP button to increase the value.
3. Press the DOWN button to decrease the value.
¶The unit will return to normal system operation approximately
3 seconds after the last button press.

Section 3 - Basic Operations
Page 13
Measurement Bar Scale
Figure #6 shows the two Measurement Bar Scale modes: Solid and Gap.
The Measurement Bar Scale mode is stored in memory, the last mode used is
maintained when the unit is powered on.
Refer to the instructions below to change the Measurement Bar Scale mode.
1. Long press the HUD button to toggle to the other scale. A message
corresponding to the new scale “GAP” or “SLd” is displayed in both
the in-scope LED and external LCD display .
¶The unit will return to normal system operation approximately
3 seconds after the last button press.
Neck Strap
LIn most situations, you will find that the Solid Bar Scale works best in
the BAF Mode, and that the Gap Bar Scale works best in the Diameter
and Height/Diameter Modes.
Solid Bar Scale Gap Bar Scale
Figure #6
Figure #7

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 14
Section 4 - System Functions
Figure #8 shows an overview of the System functions. To select the System
Mode, press the MODE button until the external LCD displays the SYS Mode
Indicator and the message “Prcnt” appears in the main display. The SYS Mode
indicator is displayed when the System Mode is active. Press the FWD button or
BACK button to move between the functions.
Displaying Percent Slope
The RD 1000’s tilt sensor allows you to view inclination values. Values are
displayed in the in-scope LED and appear as whole units of percent slope.
Percent Slope = (Tan θ) x 100
1. Press the MODE button until the external LCD displays the SYS
Mode Indicator and the message “Prcnt” appears in the main
display.
2. Looking through the sighting scope, press-and-hold the TRIGGER
button to activate the tilt sensor. The horizontal aiming marks and
the percent slope appear in the in-scope LED.
a. The value updates as long as you hold the TRIGGER
button.
b. When you release the TRIGGER button, the percent slope
is locked and is displayed in the in-scope LED for a
maximum of 30 seconds (if no other buttons are pressed).
c. To download a serial data string through the serial port to
an external data collector, press the DOWN button.
¶The serial data string contains the raw inclination, it
does not contain the percent slope (page 27).
3. Press-and-hold the TRIGGER button to repeat this process.
¶Press the FWD button to move to the next System function.
¶Press the BACK button to move to the previous System
function.
¶Press the MODE button to select a measurement mode.
Figure #8

Section 4 - System Functions
Page 15
Using the Magnifier
When you are measuring diameters and your work requires maximum
measurement resolution, you will want to attach the Magnifier to the RD 1000 and
turn ON the magnification constant. The Magnifier modifies the subtended angle
represented in the in-scope LED Measurement Bar Scale, covering an overall
smaller range of angles. Thereby increasing the individual bar ‘tick’ resolution. You
should note that the Magnifier has no practical use in the BAF Mode.
Each Magnifier is labelled with its own unique magnification constant. The
magnification constant is stored in RD 1000’s memory. The constant must be
toggled ON when the magnifier is attached to the RD 1000, and toggled OFF
when the magnifier is not attached to the RD 1000. The external LCD displays the
MAG Status Indicator when the Magnification Constant is toggled ON. As long as
you are using the Magnifier that shipped with your RD 1000, you should not ever
have to change the value of the constant.
Attaching the Magnifier
1. Grasp the magnifier by the front,
outside edges opposite the
threads.
2. Position the magnifier front of the
RD 1000 as shown in Figure #9 so
the threads are aligned.
3. Turn the magnifier clockwise to
secure to the RD 1000. Do not
force the first few turns and
tighten until snug.
Removing the Magnifier
1. Grasp the magnifier by the front, outside edges.
2. Turn the magnifier counter-clockwise.
Turning the Magnification Constant ON or OFF
1. Press the MODE button until the external LCD displays the SYS
Mode Indicator.
2. Press the FWD or BACK button until the MAG Status Indicator is
displayed and “OFF” or “On” appears in the main display.
3. Press the UP or DOWN button to toggle the selection.
¶Press the FWD button to move to the next System Option.
¶Press the BACK button to move to the previous System Option.
¶Press the MODE button to select a measurement mode.
Figure #9

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 16
Displaying the Magnification Constant
1. Press the MODE button until the external LCD displays the SYS
Mode Indicator.
2. Press the FWD or BACK button until the MAG Status Indicator is
displayed and “OFF” or “On” appears in the main display.
¶If “OFF” is displayed, press the UP or DOWN button to toggle
“ON”.
3. Press and hold the EDIT button for approximately 3 seconds. The
current Magnification constant appears in the main display. This
value should match the number that appears on the magnifier.
¶If you want to use the same Magnification Constant, press the
MODE button to select a measurement mode.
¶See below to edit the value of the Magnification Constant.
¶Press the FWD button to move to the next System Option.
¶Press the BACK button to move to the previous System Option.
Editing the Value
1. Display the Magnification Constant (see above).
2. Press the EDIT button and use the arrow buttons to edit the value.
¶Valid Values: 2.00 to 2.99.
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 new Magnification
constant.
¶Press the MODE button to select a measurement mode.
¶Press the FWD button to move to the next System Option.
¶Press the BACK button to move to the previous System Option.
Selecting Measurement Units
The RD 1000 allows you to choose between Metric and Imperial measurement
units. Refer to the instructions below to toggle the selection.
1. Press the MODE button until the external LCD displays the SYS
Mode Indicator.
2. Press the FWD or BACK button until the Units Status Indicator and
distance measurement Unit Indicators (flashing) are displayed.
3. Press the UP or DOWN button to toggle between Imperial and
Metric Units.
Metric: M and CM flashing. Imperial: F and I flashing.
¶Press the FWD button to move to the next System option.
¶Press the BACK button to move to the previous System option.
¶Press the MODE button to select a measurement mode.

Section 4 - System Functions
Page 17
Aligning the Tilt Sensor
In the rare event that the unit suffers a severe drop shock, refer to the
instructions below to align the tilt sensor.
1. Press the MODE button until the external LCD displays the SYS
Mode Indicator.
2. Press the FWD or BACK button until the CAL Function Indicator is
displayed and the message “rEF 1” appears in the main display.
3. Position the RD 1000 on a flat, relatively level surface as shown in
Figure #10(A).
¶Do not lift or raise the unit until the message “dOnE” is
displayed in step #6 below.
4. Press the ENTER button to store the inclination measurement. The
message “rEF 2” appears in the main display.
5. Slowly rotate the RD 1000 180 degrees as shown in Figure #10(B).
6. Press the ENTER button to store the inclination measurement and
make the zero offset correction. The message “dOnE” appears in the
main display before the message “ref 1” is displayed.
¶Press the FWD button to move to the next System option.
¶Press the BACK button to move to the previous System option.
¶Press the MODE button to select a measurement mode.
LWhen using an LTI laser range finder with your RD 1000, you should
verify that you have selected the same measurement units in both
instruments. If the RD 1000 and the laser are not using the same
measurement units, the RD 1000 will convert the measurement data
received from the laser. For example, if the RD 1000 is using
Imperial
units
, and the laser is using Metric units , the RD 1000 will convert the
measurement data received from the laser to
Imperial units .
Figure #10

Laser Technology, Inc. Criterion RD 1000 User’s Manual
Page 18
Section 5 - BAF-scope Functions
•BAF Mode: Specify a Basal Area Factor value and visually estimate if
trees fall “In” or “Out” of a given plot. The Magnifier has no application
in this mode.
•IN/OUT Mode: Use the internally stored plot radius factors to
determine the status of “borderline” trees.
BAF Mode
Refer to the instructions below to complete a BAF measurement.
1. Press the MODE button until the external LCD displays the BAF
Mode Indicator, the previously entered (or default) BAF value, and
the EDIT Function Indicator. This is prompting you to enter a
different BAF value.
¶If you want to use the same BAF value, go to step #3.
2. To enter a different BAF value, press the EDIT button and then use
the arrow buttons to edit the value.
¶Valid Values: 1 - 127 (Imperial) or 0.3 - 29.1 (Metric).
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.
3. Press the ENTER button to accept the BAF value. Looking through
the sighting scope, press-and-hold the TRIGGER button to activate
the illuminated in-scope LED Measurement Bar Scale and dynamic
inclination tracking. The bar scale represents the subtended
horizontal angle away from the unit that corresponds to the
specified BAF value. The scale automatically adjusts as you aim up
or down a slope. The BAF value is also displayed in the in-scope
LED numeric field.
4. Aim to the tree DBH and release the TRIGGER button.
¶The tilt sensor is only activated when the TRIGGER button is
pressed and held. As long as you hold the TRIGGER button, the
tilt sensor continues to operate and update the displayed data.
¶When you release TRIGGER button, the bar scale is held and
displayed in the in-scope LED for approximately 30 seconds.
L• Repeat the above steps to take another BAF measurement.
• In most situations, you will find that the Solid Bar Scale works
best in the BAF Mode. However, you can toggle the illuminated
in-scope LED measurement scale from Solid to Gap (page 13).
• The Magnifier has no practical use in this mode.
• If you are working in Imperial measurement units and want to set
the BAF value to tenth’s of a whole number, refer to the example
on page 5.