LTI TruPulse 200L
First Edition - Part Number 0144873
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.
Patents:
This product is covered by pending patent applications and/or the following issued U.S.
Patents:
6,445,444; 5,612,779; 6,057,910; 6,226,077; 5,652,651; 7,920,080; 7,619,548.
Trademarks:
Criterion, Impulse, and TruPulse are trademarks of Laser Technology, Inc.
LTI Contact Information:
Laser Technology, Inc.
6912 South Quentin St.
Centennial, CO 80112-3921 USA
Phone: 1-303-649-1000
1-800-790-7364 (USA and Canada)
Fax: 1-303-649-9710
Web Site: www.lasertech.com
Email: service@lasertech.com
TruPulse 200L Reference Information:
Record information about your TruPulse 200L in the table below.
You can find this value: Value
Serial
Number
Firmware
Revision
Number
On the serial number sticker affixed to the
TruPulse 200L or see page 12 for information.
See page 12 for information.
Laser Technology, Inc.
®
TruPulse
200L
User's Manual
Languages
1. English
2. Español
3. Français
4. Deutsch
5. 日本語
6. 汉语被简化
LTI TruPulse 200L User’s Manual - Table of Contents
Avoid staring directly at the laser beam for prolonged periods.
The TruPulse® 200L is designed to meet FDA eye safety requirements and is
classified as eye-safe to Class 1 limits, which means that virtually no hazard is
associated with directly viewing the laser output under normal conditions. As
with any laser device, however, reasonable precautions should be taken in its
operation. It is recommended that you avoid staring into the transmit aperture
while firing the laser. The use of optical instruments with this product may
increase eye hazard.
Never attempt to view the sun through the scope.
Looking at sun through the scope may permanently damage your eyes.
Never point the unit directly at the sun.
Exposing the lens system to direct sunlight, even for a brief period, may
permanently damage the internal components.
Avoid direct sun exposure on the eyepiece.
Exposing the eyepiece to direct sunlight can damage the internal display.
Do not expose the instrument to extreme temperatures.
TruPulse® 200L components are rated for a temperature range of -4 to +140° F
(-20 to +60° C). Do not expose the instrument to temperatures outside this
range whether in use or in storage.
Section 1 - Introducing the LTI TruPulse 200L
Page 3
Section 1 - Introducing the LTI TruPulse 200L
Congratulations on the purchase of your TruPulse 200L, a cost-effective professional
rangefinder. This compact and lightweight laser is a flexible tool for your measurement
needs.
Features of the TruPulse:
• New graphic display makes it easy to use.
• Crystal clear optics and the heads up display lets you keep your eye on the
target.
•The laser sensor and integrated tilt sensor measure slope distance, horizontal
distance, vertical distance and inclination.
•The Target Mode allows you to select or eliminate targets; which helps you
take the most accurate measurement possible in a variety of field conditions.
•Flexible, 2 or 3-point height routines and 2-dimensional Missing Line routine
with auto sequencing.
1. FIRE button (power ON)
2. (UP) button
3. (DOWN) button
4. Eyepiece
5. Tripod / Monopod mount
6 Attachment Point
(for neck strap and eyepiece cover)
When you unpack your TruPulse 200L, check to make sure that you received everything
that you ordered, and that it all arrived undamaged.
Basic Package
• TruPulse 200L
• Carrying Case
• Lens Cloth
• Neck Strap
• User's Manual
Compatible Accessories
• Foliage Filter
• Tripod
To learn more about any of the items listed above, please contact
your LTI Sales Representative or an Authorized LTI Distributor.
Understanding How the TruPulse 200L Works
The TruPulse 200L consists of a laser range sensor, an integrated tilt sensor, and a digital
processor. The TruPulse 200L has three buttons that access the unit's internal software,
which controls the integrated sensors.
Laser Range Sensor
The laser range sensor emits invisible, eye safe, infrared energy pulses. The TruPulse
200L determines distance by measuring the time it takes for each pulse to travel from the
rangefinder to the target, and back. The
being transmitted. The laser may be active for a maximum of 5 seconds. Once the target
is acquired or the laser has timed out, you can release the FIRE button. The TruPulse
200L has a broad spectrum of sensitivity and can work with both reflective and nonreflective targets.
Targets
When selecting a target, you should consider the following:
• Color: The brighter the color, the longer the range.
• Finish: Shiny finishes provide longer range than dull finishes.
• Angle: Shooting perpendicular to a target provides better range than
shooting to a target at a sharp angle.
•Lighting Conditions: Overcast skies will increase the unit's maximum
range, and sunny skies will decrease the unit's maximum range.
indicator is displayed whenever the laser is
Section 1 - Introducing the LTI TruPulse 200L
Page 5
Tilt Sensor
The integrated tilt sensor measures vertical angles that the TruPulse 200L uses to
calculate height and elevation and to determine slope-reduced horizontal distances. The
instrument held level is at 0
•The laser is not active in the Inclination Measurement Mode.
• Generally, the inclination is measured when you press. However
°
, and is rotated up through +90° and down through -90°.
in (1) the Continuous Target Mode and (2) in the Height Measurement
Mode, the inclination reading appears in the Main Display and the
display updates as your aiming point changes as long as you press
In these two situations, the measured inclination is based upon the
aiming point when you release
.
Digital Processor
The TruPulse 200L includes LTI's proprietary ASIC chip (Application-Specific
Integrated Circuit). The ASIC chip combined with high-speed CPU processing
allows the TruPulse 200L to deliver accurate and fast measurements.
The TruPulse 200L has three buttons. With the TruPulse 200L in your right hand and
looking through the eyepiece, is located on top, near your index finger. and
are located on the left side of the instrument.
Measurement Modes
Height Routine
Target Modes
System Setup Mode
Measurement Modes
(UP)
Height Routine
Target Modes
System Setup Mode
Measurement Modes
(DOWN)
Height Routine
Target Modes
System Setup Mode
Powers ON the unit.
Distance Measurement: fires the laser.
Inclination: Release “locks” tilt sensor in (1) Height
Measurement Mode and (2) Continuous Target Mode.
(HD) Fires the laser.
(INC) Release “locks” tilt sensor.
Selects option and returns to the Measurement Mode.
Press to scroll to the previous Measurement Mode.
Press-and-hold 4 seconds to access the Target Mode.
Clears the last measurement and re-displays the previous
prompt.
Press to scroll to the previous option.
Press to scroll to the next Measurement Mode.
Press-and-hold 4 seconds to access the System Setup Mode.
Exits the Height Routine.
Press to scroll to the next option.
Powering OFF the TruPulse 200L
To power OFF the unit, simultaneously press-and-hold and for 4 seconds.
To conserve battery power, the TruPulse 200L powers itself OFF if no button presses
are detected after 2 minutes.
Display Indicators
6
Figure #6 shows the LCD in-scope display. The
TruPulse 200L’s internal software is organized into
options. Each option represents a specific measurement
or setup function and has a corresponding display
indicator. Refer to the figure and table below for
information about each indicator.
Displays messages and measurement results.
Inclination measurement units.
Percent Slope
Main
Display
Degrees
Feet
Meters
Yards
Distance measurement units. Selection available in
the System Setup Mode.
Battery
Status
Crosshair
Laser
Status
Continuous
Target Mode
Flashing: battery voltage is low.
Steady: battery voltage is too low for system
operation.
Not Visible: battery voltage is within acceptable
range.
Serves as the aiming point reference, both
horizontally and vertically.
Visible: laser is firing.
Not Visible: laser is not active.
The unit continuously acquires targets and displays
measurements while
to the most recently acquired target is displayed.
The angle of inclination between the TruPulse 200L
at level and the target.
Straight line distance between the TruPulse 200L
and the target.
The level distance between the TruPulse 200L and
the plane of the target.
The distance between the target and the
perpendicular to the path of the horizontal distance.
Inclination
Measurement
Mode
Slope Distance
Measurement
Mode
Horizontal
Distance
Measurement
Mode
Vertical
Distance
Measurement
Mode
Azimuth Not available.
Missing Line
Measurement
Routine
Height
Measurement
Routine
Closest
Target Mode
Farthest
Target Mode
Filter
No
Indicator
Mode
Two-step Missing Line Routine finds the connecting
vector (or missing line) between two points.
Three-step height routine. The final calculation
represents the vertical distance between the points
on the target represented by ANG1 and ANG2.
The unit logs multiple targets while
down. The circle denotes that additional targets
have been acquired. Of the targets acquired, the
distance to the closest target displays.
The unit logs multiple targets while
down. The circle denotes that additional targets have
been acquired. Of the targets acquired, the distance
to the farthest target displays.
‘F’ appears as the left-most character of the Main
Display to indicate Filter Mode is active. Similar to
Standard, single shot mode, but the laser’s
sensitivity is reduced so it only detects pulses
returned from a reflector. The optional foliage filter
must be used in conjunction with this mode.
is held
is held
Section 3 - Basic Operations
Page 11
Display Indicator Test
To verify that all display indicators are working properly:
1. Start with the TruPulse 200L powered OFF, press-and-hold .
2. Compare the in-scope display to the Figure #6 (page 9) to verify that all indicators
are working properly.
3. Release to start normal operation.
Error Codes
Error conditions can occur in a measurement or in the system
hardware. To make sure that you never get an erroneous measurement,
the TruPulse 200L monitors both system hardware and measurements.
When the instrument detects an error condition, it displays and error
code instead of a measurement.
Error codes appear in the main display and are in the form of “Exx”,
where “xx” is an error code number. Figure #7 shows an example error
code, E36.
If an error code persists:
1. Release
measurement.
2. Remove and re-install the batteries and then try to retake
the measurement.
3. If the above steps do not resolve the error, contact LTI or
an Authorized LTI Distributor for assistance. Refer to the
inside front cover for LTI contact information.
The TruPulse 200L allows you to choose the units of measure. Distance: meters, yards or feet.
Inclination: degrees or % Slope. To toggle the units selection:
1. From the Measurement Mode, press
“UnitS” will appear in the Main Display.
for 4 seconds to access the System Setup Mode.
2. Press
3. Press or to display the previous or next distance unit option.
4. Press to select the displayed distance unit and display the inclination unit option.
5. Press or to display the previous or next inclination unit option.
6. Press to select the displayed inclination unit and return to the Measurement Mode.
to select the “UnitS” option.
Each time the TruPulse 200L is powered ON, it will return to the same unit
setting that was last used.
Figure #10
Section 6 - Target Modes
Page 15
Section 4 - Measurement Modes
When you power ON the TruPulse 200L, the last used Measurement Mode will be active.
Press
the five different types of measurements that the TruPulse 200L can take.
Distance Measurements
The basic steps for taking any distance measurement:
1. Look through the eyepiece and use the crosshair to aim to the target.
or to display the previous or next Measurement Mode. Figure #11 shows
Slope Distance
Inclination
Horizontal Distance
Vertical Distance
Height Routine
Figure #11
2. Press-and-hold . The indicator is displayed while the laser is active. The
laser will remain active for a maximum of 5 seconds while acquiring data about the
target.
o If the target is not acquired in the 5 second period, release
and
repeat this step.
3. Once the measurement is displayed, release . The measurement will be
displayed steady until you press any button or the unit powers OFF.
or to scroll through the individual measurement functions
•Both inclination and distance are measured in the
Horizontal Distance
Vertical Distance
•Example Range Measurement: = 12.5 meters
, Slope Distance , and
modes.
= 1.6 meters
= 12.6 meters
= 7.3 degrees
•When you scroll to the Height Function
will be blank and the will be flashing.
• In the Inclination Mode , the Main Display will be blank for
all other measurement functions since the laser is not active when
measuring inclination only.
• The last measurement does not need to be cleared before
acquiring your next target.
• Each time the TruPulse 200L is powered ON, it will return to the
same measurement mode that was last used.
Inclination Measurements
The laser is not active in the Inclination
inclination is measured when you press
Mode and (2) in the Height Measurement Mode , the inclination reading appears in
the Main Display and the display updates as your aiming point changes as long as you
press
Percent Slope
Percent slope, indicated by , is a calculation equal to 100 times the tangent of the
inclination angle. It is a variant way of expressing the inclination. You can get percent
slopes only in the basic measurement displays, never in the Height measurement displays.
Note also that the instrument never downloads a percent slope. It always downloads the
inclination angle.
.
An inclination angle of 5 degrees for example is equal to a slope of
about 8.75 percent.
Measurement Mode. Generally, the
. However, in (1) the Continuous Target
, the Main Display
Height Routine
A
Height Measurements involve a
simple routine that prompts you
to take 3 shots to the target:
Horizontal Distance, Inclination
Angle base and Inclination Angle top.
The TruPulse 200L uses these results
to calculate the height of the target.
Figure #12 shows the three shots
required for the height routine.
Select your target and look through the eyepiece, using the
1.
crosshair to aim to your target. The
indicator displays
Figure #12
steady and the indicator flashes; prompting you to
measure the Horizontal Distance to the “face” of the
target.
2. Press-and-hold . The indicator is displayed while
the laser is active. The laser will remain active for a
maximum of 5 seconds while acquiring data about the
target. The measured horizontal distance appears briefly in
the Main Display and then Ang_1 appears, and the
indicator flashes; prompting you to measure the inclination
to base (or top) of the target.
Section 6 - Target Modes
Page 17
= Horizontal Distance
B = Top Angle
C = Base Angle
D = Height
3. Press-and-hold and aim to the base (or top) of the
target. The measured inclination appears in the Main
Display and is updated as long as us you continue to hold
. The measured inclination is “locked” when you
release
. The measured inclination appears briefly in
the Main Display and then Ang_2 appears and the
indicator flashes; prompting you to measure the inclination
to the top (or base) of the target.
4. Press-and-hold and aim to the top (or base) of the target. The measured
inclination appears in the Main Display and is updated as long as you continue to
hold
. The measured inclination is “locked” when you release . The
measured inclination appears briefly in the Main Display and then the calculated
Height is displayed steady until you press any button or the unit powers OFF.
During the height routine:
• Press to re-shoot the previous point.
• Press to exit the height routine.
• The laser is not active while measuring the ANG1 and ANG2
values. As long as you hold , the inclination reading is
displayed and updated as your aiming point changes. The measured
inclination is based upon your aiming point when you release
• When the height result is displayed, just press to start the
routine and repeat the steps.
.
Vertical 2D Missing Line Routine
The Vertical 2D Missing Line Routine: Displays Horizontal Distance
Vertical Distance
, Slope Distance and Inclination between
,
two remote points.
The Vertical 2D Missing Line Routine calculates distances and angles to describe the
relationship between two points in two-dimensional space (connecting vector). This
routine is ideal for remote slope determinations and changes in elevation from one
location.
The simple routine prompts you to take two shots to targets: "Shot 1” and “Shot 2”.
The TruPulse uses the results to calculate four variables between the two points:
slope distance, inclination, horizontal distance, and vertical distance as shown in
figure to the right.
•
•
: Horizontal Distance: Horizontal component of the missing line.
: Vertical Distance: Change in elevation between point #1 and point #2.
• : Slope Distance: Length of the missing line.
• : Inclination between point #1 and point #2.
During the Vertical Missing Line Routine:
• Press
• Press
1. Select your first target and look through the
eyepiece, using the crosshair to aim to your target.
The indicator displays steady and the
indicator flashes; prompting you to measure the
Horizontal Distance to the first target.
2. Press-and-hold . The indicator is displayed
while the laser is active. The laser remains active
for a maximum of 5 seconds while acquiring data
about the target. The measured horizontal distance
appears in the Main Display.
3. Once the
steady and the
steady); prompting you to measure the Horizontal
Distance to the second target. Looking through the
eyepiece and using the crosshair to aim to the
second target.
4. Press-and-hold
while the laser is active. The laser remains active
for a maximum of 5 seconds while acquiring data
about the target. The measured horizontal distance
to the second target appears in the Main Display.
5. Once you release
and the calculated horizontal distance of the
missing line is displayed. The measurement
displays steady until you press any button or the
unit powers off.
At this time, you can:
to re-shoot Shot 1.
to exit the Missing Line Routine.
button is released, "SHot2" appears
indicator flashes (with
. The indicator is displayed
, and are steady
•Press or to scroll and see the other missing line
measurements results (
, and ).
•Reshoot Shot 2 by pressing
appear steady
in the display as well as HD flashing, prompting you to measure
the horizontal
distance to the second target (or new target). Go to #4 above.
•Press
to exit the missing line results and return to Shot 1.
The TruPulse 200L has five Target Modes which allow you to
select or eliminate targets and to take the most accurate
measurements possible in various field conditions.
From the Measurement Mode, press for 4 seconds.
1.
The active Target Mode appears in the Main Display.
2. Press or to display the previous or next Target
Mode.
3. Press to select the displayed Target Mode and return to
the Measurement Mode.
o Std = Standard: Single shot mode.
o Con = Continuous: Press-and-hold
. Once the
target is acquired, the TruPulse 200L can continuously
acquire additional targets for a maximum of 5 seconds.
The most recently acquired target appears in the Main
Display.
o CLO = Closest: Press-and-hold
. Once the initial
target is acquired, the TruPulse 200L can acquire
additional targets. The
indicator denotes that
additional targets have been acquired. The closest
acquired target always appears in the Main Display.
o FAr = Farthest: Press-and-hold . Once the initial
target is acquired, the TruPulse 200L can acquire
additional targets. The indicator denotes that
additional targets have been acquired. The farthest
acquired target always appears in the Main Display.
o Flt = Filter: In this mode the laser’s sensitivity is
reduced to only detect pulses returned from a reflector.
The optional foliage filter must be used in conjunction
with this mode. In this mode, measurements always
include ‘F’ as the left most character in the Main
Display. Typical maximum distance is 350 feet to a
3-inch reflector.
Figure #15
Section 6 - Target Modes
• The selected Target Mode remains active until you repeat the above
steps and select a different Target Mode.
Page 21
•Each time the TruPulse 200L is powered ON, it will return to the
same Target Mode that was last used.
• In Closest and Farthest Modes, the minimum separation distance
The battery is the only user-replaceable parts in the TruPulse 200L. Do not remove any
screws. To do so will effect or void the LTI Limited Warranty.
Temperature Range
The instrument is rated for an operating temperature range of -4 to +140º F
(-20 to +60º C). Do not expose the TruPulse 200L to temperatures outside this range.
Protecting from Moisture and Dust
The TruPulse 200L is sealed to provide protection from normally expected field
conditions. It is protected from dust and rain, but will not withstand submersion.
If water leakage is suspected:
1. Power OFF the TruPulse 200L.
2. Remove the battery.
3. Air dry the TruPulse 200L at room temperature with the battery
compartment open.
Protecting from Shock
The TruPulse 200L is a precision instrument and should be handled with care. It will
withstand a reasonable drop shock. If the unit suffers from a severe drop shock, you may
need to send the unit to LTI for service repair.
Transporting
When transporting the TruPulse 200L, the unit should be secured in the provided carrying
case. The provided neck strap can be used when carrying the TruPulse 200L in the field.
Cleaning
Clean the TruPulse 200L after each use, before returning it to its carrying case. Check all
of the following items:
Excess moisture. Towel off excess moisture, and air dry the instrument at room
temperature with the battery removed and the battery compartment open.
Exterior dirt. Wipe exterior surfaces clean to prevent grit buildup in the
carrying case. Isopropanol may be used to remove dirt and fingerprints from
the exterior.
Transmit and Receive Lenses. Use the provided lens cloth to wipe the lenses.
Failure to keep the lenses clean may damage them.
Storing
If you won't be using the TruPulse 200L again soon, remove the battery before storing
the instrument.
Section 9 – Specifications
Page 23
Section 7 - Specifications
All specifications are subject to change without notice. Please refer to LTI's website for current
specifications. If you are not able to locate the information on the website or if you do not have
internet access, please contact LTI via phone or fax.
Weight: 10 ounces(285 g)
Size: 4.5" x 4" x 2"(11.5 cm x 10 cm x 5 cm)
Range Limits: 3 to 5,740 ft (1 m to 1,750 m) to reflectivetarget3 to 3,280 ft (1 m to 1,000 m) typical to non-reflective
Range Accuracy: ±3 ft (±1 m) to any target at any range
Range Resolution: 1 ft, yd, m
Range Units: Feet, Yards and Meters
Inclination Limits: ±90 degrees
Inclination Accuracy: ± 0.5 degrees
Inclination Resolution: 0.5 degree, 1%
Inclination Units: Degrees, % Slope
Power: 3.0 volts DC nominal; (1) CR123A battery(Alkaline, NiCd/NiMH, Lithium)
The LCD Main Display is used to convey messages and measurement results.
When all of the indicators are active the Main Display looks like:
Numbers 0-9:
Alpha Characters:
= a = g = r
= d = i = s
= e = l = t
= f = n
Due to the limited number of characters available, many messages have to be abbreviated. The table
below lists the messages that appear in the Main Display.
Message Explanation
Angle 1. Height Routine. 17
Angle 2. Height Routine.
Farthest target mode.
Filter target mode.
Standard target mode.
Units.
= u
Page #
17
20
20
20
14
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