Spectra DG211 User manual

DG211
spectraprecision.com
User Guide
Bedienungsanleitung
Manuel de l´utilisateur
Guida per l´uso

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Exit of Laser Beam
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RC201
946

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Contents
1 Introduction ................................................................................ 6
2 Safety Instructions .................................................................... 6
3 Product........................................................................................ 7
3.1 General Description ............................................................ 7
3.2 Product Components .......................................................... 8
3.3 Installing The Batteries ...................................................... 9
3.4 Battery Status Indication................................................... 9
3.5 Recharging The Batteries................................................... 19
3.6 Battery Door ........................................................................ 10
3.7 Laser Setup .......................................................................... 10
3.8 Turn On/O The Laser ........................................................ 10
3.9 Grade Entry With Digit Select Mode ................................. 11
3.10 Grade Entry With Step & Go Mode .................................... 11
3.11 Laser Alignment................................................................... 12
3.12 Center Laser......................................................................... 12
3.13 Manual Mode........................................................................ 12
3.14 Lock Keypad ......................................................................... 13
3.15 Roll Alert............................................................................... 13
3.16 Standby Mode...................................................................... 13
4 Check Calibration....................................................................... 14
4.1 Check Level Accuracy ......................................................... 14
4.2 Check Grade Accuracy........................................................ 15
5 Cleaning And Maintenance ....................................................... 16
6 Protecting The Environment..................................................... 16
7 Warranty...................................................................................... 17
8 Technical Specication.............................................................. 18
8.1 Technical Specication Laser DG211................................. 18
8.2 Technical Specication Remote Control RC201 .............. 18
9 CE Declaration Of Conformity .................................................. 19
10 UKCA Declaration Of Conformity............................................. 19
11 Service And Customer Advice .................................................. 19

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1 Introduction
Thank you for choosing a Spectra Precision pipe laser. The pipe laser is an easy-to-
use tool that provides underground contractors line, elevation, and grade control for
installing storm, sanitary, or other gravity-ow pipe. This system can also be used for
tunneling, boring, pipe alignment, or any other application requiring line, elevation, and
grade control.
The pipe laser projects a highly visible laser beam in a direction at a predetermined
(grade) for the alignment of gravity-ow pipe.The laser light is intercepted by a target.
To align the pipe, you need toposition it so that the pipe laser’s beam is centered at the
target’s bullseye.
2 Safety Instructions
For hazard-less and safe operation, read all the user guide instructions.
• Use of this product by people other than those trained on this product may result
in exposure to hazardous laser light.
• The users of this product ensure they have read and understand the user guide.
• Do not remove warning labels from the unit.
• The DG211 is class 3A/3R laser (<5mW; 600 – 680nm) IEC 60825-1:2014.
A Class 2 version is also available.
• Never look into the laser beam or direct it to the eyes of other people.
• Always operate the unit in a way that prevents the beam from getting into people’s
eyes.
• If initial service is required which results in the removal of the outer protective
cover, removal must only be performed by factory-trained personnel.
• Do not use the product in aggressive or explosive environment.
• Ensure that product is not damaged so that any unsafe usage is prevented.
• Before starting your work, always check the leveling accuracy of the product. See
chapter 4.1.
• Spectra Precision is not responsible for any inaccuracy that is caused by not
reading the user guide and by any misuse of the product.
• The user of the product is responsible to check the results for accuracy.
• Never put a wet laser or wet accessories in the carrying case for storage.

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Caution: Use of other than the described user and calibration tools or other
procedures may result in exposure to hazardous laser light.
Caution: Using the laser dierently than described in the user guide may result in
unsafe operation.
Note: Any local or national laws and regulations for the use of machines or
products described in this document must be followed.
Note: Reections from some surfaces like windows or at metal surfaces can
lead to wrong receiver readings.
Note: After storage or transportation, let the product acclimate to the ambient
temperature before use of high accurate measurements.
Note: Do not expose the unit to extreme temperatures or extreme temperature
changes (do not leave in vehicles).
Warning: Li-Ion batteries or alkaline batteries shipped with the product may
contain small amounts of harmful substances.
Do not open the battery, dispose of in re or short circuit; it may ignite,
explode, leak or get hot causing personal injury.
Dispose of batteries in accordance with all applicable federal, state and
local regulations.
Keep the batteries away from children, If swallowed, do not induce
vomiting. Seek medical attention immediately.
Charge only with specied chargers according to device manufacturer’s
instructions.
Be sure to charge the battery before using it for the rst time and after
not using it for an extended length of time.
Do not open the rechargeable batteries cage.
3 Product
3.1 General Description
The laser ships with a rechargeable Li-Ion battery pack. Alkaline batteries can be used
as a backup to power the laser at the job site. When alkaline batteries are used, the
plus and minus symbols in the battery pocket indicate how to install the batteries into
the product.
The rechargeable Li-Ion battery pack avoids mis-insertion by design.
Note: Charging the rechargeable Li-Ion battery pack beyond the temperature
mentioned in the technical specication (chapter 8.1) may lead to decreased battery
life or undercharged batteries.

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3.2 Product Components
DG211 Laser and RC201 Remote Control
1Power Button
Press DG211 for one second to turn on the Laser;
press and hold for one second to turn o the laser
2 E – Button Enter button; conrms the grade entry
3 Arrow Button Right Moves beam or cursor to the right
4 Minus Button Decreases grade value or moves beam down
5 Plus Button Increases grade value or moves beam up
6 Arrow Button Left Moves beam or cursor to the left
7 M – Button Changes to grade enter mode or manual mode
8 ESC/Lock Button
9Roll Vial Shows roll position of the product housing
10 Laser Beam Position Symbol shows the position of the laser beam
11 Grade Display Shows the current grade value
12 Battery Symbol Shows the amount of battery charge
13 Laser Battery Door with
Thumbscrews
Opens the battery compartment to remove or
replace the batteries
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Line-Axis Pivot Marker and
LED
Point where the alignment directions starts; when
powering the laser on, the LED is on for 15 minutes
before it switches o automatically
15 Axis Alignment Markers Markers help to align the product
16 Legs Legs; dierent sets available
17 Laser Safety Label Shows laser warning information
18 Serial Number Label
19 Tripod Mounts 5/8x11 Mount to tripod
20 Handle Product carrying handle
21 Beam Exit Windows Exit of the laser beam
22 Grade Axis Pivot Marker Point where the grade starts
23 RC201 Infrared Diodes Emitting of IR light
24 RC201 Battery Door Open to insert or replace batteries
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Li-Ion Battery Pack
and Battery Door with
Thumbscrews
26 Alkaline Spacer with
Battery Door
27 CH11 Charger
28 946 Target Set

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3.3 Installing the Batteries
Open the battery door using the turning knobs.
Rechargeable: Insert the rechargeable battery pack. It is designed to only be inserted
one way and prevents mis-insertion.
Note: DO NOT REMOVE RECHARGEABLE BATTERIES FROM THEIR CAGE AND
INSTALL ALKALINE BATTERIES. SEVER DAMAGE TO THE UNIT WILL RESULT IF
CHARGING IS ATTEMPTED.
The Li-Ion battery pack is charged outside the unit.
When needed replace Li-Ion battery pack with alkaline batteries using the alkaline spacer.
Alkaline: Four C-cell alkaline batteries can be used as a backup.
Insert four C-cell alkaline batteries into the housing according to the symbols within
the battery compartment and on the alkaline spacer.
Close the battery door.
3.4 Battery Status Indication
The approximate charge of the batteries is shown in the LCD (12). The remaining
battery lifetime is depending on the battery brand, the temperature, the job site
conditions (wind, vibrations, etc.) as well as age of the batteries and amount of
recharge cycles.
battery good; no need to charge.
battery low; user can still use the product.
battery empty; charge battery to avoid abnormal product behavior.
3.5 Recharging the Batteries
For charging the Li-Ion battery pack (25), connect the charger (27) with the Li-Ion
battery pack using the USB charging cable. It takes approximately 6 hours to charge
the Li-Ion battery pack.
Charging Indicator LED: O - Not Charging
Blinking - Charging
On - Charging Complete
When the charger is unplugged, the LED will remain on for approximately one minute.
Note: See chapter 8.1 for the temperature range for charging the Li-Ion battery pack.
LED

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3.6 Battery Door
To remove the battery door from the alkaline spacer or from the Li-Ion battery pack,
hold either the alkaline spacer or the Li-Ion battery pack and turn the battery door 90°
counterclockwise.
To mount the battery door to the Li-Ion pack or the alkaline spacer, do the same steps
as mentioned above turning the battery door 90° clockwise.
3.7 Laser Setup
Position the laser at the manhole invert or on bottom of the trench at the desired
elevation.
It is required to position the laser within its self-leveling range; see chapter 8.1.
When the laser is not positioned within the self-leveling range, the laser beam will
drive towards the maximum position and the symbol or will blink,
indicating to lower or raise the handle to achieve the self-leveling range.
For the correct cross axis position, the LCD window shows the correct position with
the roll vial symbol (9). For correct grade the symbol has to be in the center position
. If the symbol is in the left or right position the laser
accuracy will be aected.
3.8 Turn On/O Laser
Press the power button (1) on the laser for one second to turn on the laser. The display
turns on and the self-leveling will start at once with the last saved grade value. The line
axis LED (14) powers on for 15 minutes.
During self-leveling the laser beam and the % symbol blink. The laser has completed
leveling when the laser beam and the % symbol in the LCD display are no longer
blinking.
Battery Door
Li-Ion Battery Pack

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Once leveled the laser constantly monitors the roll position. If the laser has been
changed in the position during self-leveling mode, the roll alert will indicate the wrong
position with a blinking roll vial symbol. Check the correct laser position and readjust
the roll position of the laser before continuing the grade work.
During self-leveling mode, the standard display is shown.
Turn o the laser by pressing the power button (1) on the laser or the remote control for
one second.
Note: The power button (1) on the remote control can power the laser o but cannot
power the laser on.
3.9 Grade Entry with Digit Select Mode
The DG211 provides a grade range of -20% to +30%.
Note: The self-leveling range of the DG211 is limited to -10% to +25%. Any grade value
below -10% or above +25% requires a pre-tilt of the laser. See chapter 3.7 with some
guidance how to pre-tilt the laser to overcome this issue.
How to change grade value using Digit Select Mode:
Press and release M button (7) quickly to enter into the grade entry mode. The cursor
blinks at the very left position. Press either plus button (5) or minus button (4) to
change the grade value from plus to minus and vice versa.
Move the blinking cursor using the left arrow button (6) or right arrow button (3) to
the left or right. Press plus button (5) to increase the value on the cursor position or
press minus button (4) to decrease the value on the cursor position.
Press and hold plus button (5) and minus button (4) simultaneously will zero the
grade value.
Pressing the E button (2) submits the grade value. Pressing the M button (7) or ESC/
Lock button (8) leaves the grade entry menu without any change.
3.10 Grade Entry with Step & Go Mode
The DG211 provides a grade range from -20% to +30%.
Note: The self-leveling range of the DG211 is limited from -10% to +25%. Any grade
value below -10% or above +25% requires a pre-tilt of the laser. See chapter 3.7 with
some guidance how to pre-tilt the laser to overcome this issue.

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How to change grade value to work with DG211 using Step & Go mode:
Press and hold plus button (5) or minus button (4) for more than two seconds will
change the grade value starting from the very last digit and will run over to the very
left position. A short interruption of the button press will change the same digit. A long
interruption of the button press will start the change from the very last position again.
Press and hold plus button (5) and minus button (4) simultaneously will zero the
grade value.
After releasing the buttons the product will start to level at the released grade value.
3.11 Laser Alignment
Using arrow button left (6) the laser beam can be aligned to the left. Using the arrow
button right (3) the laser beam can be aligned to the right. The position of the laser is
shown via the laser alignment symbols, see pic below.
3.12 Center Laser
Pressing the arrow button left (6) and arrow button right (3) simultaneously centers
the alignment of the laser beam indicated by the centering laser symbol.
The center position of the laser is shown via the laser alignment symbols; see pic
below.
3.13 Manual Mode
Press and hold M button for ve seconds to enter the manual mode. In manual mode
the product is no longer in self-leveling mode. The laser beam can be moved using the
arrow button left (6) and the arrow button right (3) as well as the plus button (5) or
the minus button (4).
Note: During manual mode the roll alert is not active. See 3.15 for roll alert.

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3.14 Lock Keypad
To avoid any unwanted button presses, there is a way to lock the keypad. Press and
hold the ESC/Lock button (8) and the arrow button left or right (6,3) within one
second to lock the arrow button left and right. The locked left/right button is shown
with a symbol in the LCD display; see pic below. Press the same button sequence to
revert it. Press the ESC/Lock button (8) and the plus button or the minus button (5,4)
within one second to lock the plus and minus buttons. The locked plus and minus
button is shown with a symbol in the LCD display, see pic below. Press the same
button sequence to revert it.
3.15 Roll Alert
When the laser is in self-leveling mode, a roll alert activates when the stable set up
of the laser has been disturbed by vibrations or other impact to the laser. When the
laser is in self-leveling mode the symbol of the roll vial (9) and the laser light is blinking
for roll alert. When the laser is in stand-by mode only the symbol of the roll vial (9) is
blinking.
When the roll alert is activated, check the laser position and set up the laser so the roll
vial symbol (9) no longer blinks.
Note: The roll alert is not active during manual mode.
3.16 Standby Mode
Standby mode is used to save battery life when the laser is not needed. During
Standby mode the laser beam is o and the LCD is o. Only the battery symbol is
displayed to show the unit is still on. Also the start grade LED (11) is blinking and the
vial symbol is displayed during standby mode (LED 1 second on and 4 seconds o).
Press and hold ESC/Lock button (8) for three seconds to change laser into the
standby mode. When in standby mode, press and hold ESC/Lock button (8) for three
seconds to change back into self leveling mode.
Note: After four hours in standby mode, the product shuts o completely.
Note: Roll alert is active during standby mode
Note: In case of roll alert during standby mode, the roll vial (9) blinks
Note: Activation of the roll alert will end the standby mode.

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44 Check CalibrationCheck Calibration
4.1 Check Level Accuracy
A2
A
B
A1
B1
B2
Checking the calibration of your pipe laser is simple with an engineer’s rule and
your pipe laser.
1. Select a level road, parking lot or eld whose rise is not more than 4 inches in 100
feet (10 cm/30 m).
2. Choose two points A and B, 100 feet (30 m) apart. The points must be found, so
mark them well.
3. Set up the pipe laser just behind point A so that it passes over points A and B and
rough level.
4. Turn on the pipe laser and let it warm up for about 10 minutes.
5. Set the grade counter to 0.000%.
6. Ensure the laser beam passes over points A and B. Allow the pipe laser to self-
level.
7. Accurately measure the elevation to the center of the beam at point A and record
the elevation as A1 in a table like the one shown below.
8. Accurately measure the elevation to the center of the beam at point B and record
the elevation as B1.
9. Move the pipe laser behind point B and aim the laser beam so that it passes over
points A and B. Allow the pipe laser to self-level.
10. Accurately measure the elevation to the center of the beam at point B and record
the elevation as B2.
11. Accurately measure the elevation to the center of the beam at point A and record
the elevation as A2.
12. Subtract the A1 and B1 elevation readings from A2 and B2 elevation readings.

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Note: Your laser is in calibration if the dierence between A2 – A1 equals B2 – B1.
Note: If the error is greater than 1/8 in (3 mm) in the set up described above (100 ft /
30 m distance between point A and B), return the pipe laser to an authorized Spectra
Precision service center.
Point A Point B
Second Reading A2 B2
First Reading A1 B1
Dierence A2 – A1 B2 – B1
Error in 100 feet (30 m) ((A2-A1)-(B2-B1))/2
4.2 Check Grade Accuracy
A B
After the rst 25 – 50 feet (8 – 15 m) of pipe has been laid, it is recommended that you
make a grade check to insure that the setup is correct, and that the system is properly
operating.
The illustration shows a method for checking grade.
1. Using a laser, transit, or automatic level and a grade rod, take a reading at the
beginning ofthe pipe “A”.
2. Using the same instruments, obtain a level reading at the end of the pipe “B”.
3. The dierence between the readings equals the rise over the run.
4. In terms of % of grade, rise divided by the run times 100 equals the percent
of grade.
Note: The user of this equipment is expected to follow all operating instructions and
make periodic checks on the proper grade, elevation, and line of the pipe as it is being
laid. Spectra Precision or its representatives assume no responsibility for improperly
laid pipe.

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Example:
Feet / Tenths Metric
Rod Reading at A 15.74 feet 4,801 m
Rod Reading at B 12.289 feet 3,749 m
Rise or Dierence (A-B) 3.451 feet 1,052 m
Distance from A to B 145 feet 44,196 m
Rise divided by Run 0.0238 0,0238
Rise divided by Run times 100 =
Laser setting
2.38% 2,38%
Rise according to engineering
plan
2.38% x 145 feet
= 3.452 feet
2.38% x 44,196 m
= 1,052 m
The pipe is laid correctly when the rod reading “A” minus rod reading “B” equals the rise
according to the engineering plans.
5 Cleaning and Maintenance
Dirt and water on the glass parts of the laser will inuence beam quality and operating
range considerably. Clean with cotton swabs.
Remove dirt on the housing with a lint-free, warm, wet and smooth cloth. Do not use
harsh cleaners or solvents.
Allow the unit to air dry after cleaning it.
Note: Never put a wet unit into the carrying case for storage.
6 Protecting the Environment
The unit, accessories and packaging ought to be recycled.
Note: Do not throw used batteries into the garbage, water or re. Remove them from
service in compliance with local environmental requirements

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7 Warranty
Spectra Precision LLC warrants the DG211 to be free of defects in material and
workmanship for a period of three years. Spectra Precision LLC or its authorized
service center will repair or replace, at its option, any defective part, or the entire
product, for which notice has been given during the warranty period. If required,
travel and per diem expenses to and from the place where repairs are made will be
charged to the customer at the prevailing rates. Customer should send the product
to the nearest authorized service center for warranty repairs or exchange, freight
prepaid. Any evidence of negligent, abnormal use, accident, or any attempt to repair
the product by other than factory-authorized personnel using Spectra Precision
LLC certied or recommended parts, automatically voids the warranty. Special
precautions have been taken to ensure the calibration of the laser; however, calibration
is not covered by this warranty. Maintenance of the calibration is the responsibility of
the user.
The foregoing states the entire liability of Spectra Precision LLC regarding the
purchase and use of its equipment. Spectra Precision LLC will not be held responsible
for any consequential loss or damage of any kind. This warranty is in lieu of all other
warranties, except as set forth above, including any implied warranty merchantability
of tness for a particular purpose, are hereby disclaimed. This warranty is in lieu of all
other warranties, expressed or implied.

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8 Technical Specication
8.1 Technical Specication Laser DG211
Accuracy, Level1± 1.5 mm / 30 m; 1/16” @ 100 ft.
Accuracy, Grade1± 9 mm / 30 m; 1/4” @ 70 ft.
Accuracy, Grade, Temperature ± 0.6 mm / 30 m per °Celsius
± 3/128” @ 100 ft.; per 1.8°Fahrenheit
Operational Area1,2Up to 150 m / 500 feet
Laser Type 600 – 680 nm
Laser Class 3A/3R OR 2
Grade Range -20% to 30%
Self-Leveling Range -10% to 25%
Battery Life Li-Ion pack1,2 36 hrs
Li-Ion pack charging time < 6 hrs
Li-Ion pack charging temperature 0°C to 45°C / 32°F to 113°F
Alkaline batteries back up 4 x C-Cells
Operating Temperature -10°C to 50°C (14°F to122°F)
Storage Temperature -20°C to 70°C (-4°F to 158°F)
Dust and Waterproof IP68
Weight 2868 g / 6.3 lbs (inlcl. Li-Ion pack)
Product length 372 mm / 14.65 in
Diameter 96 mm / 3.78 in
8.2 Technical Specication Remote Control RC201
IR operating range (front, through pipe)1,2 150m
IR operating range (back)1,2 10m
Power source 2 x 1.5 V AA alkaline batteries
Weight 153 g / 0.34 lbs w/o batteries
Dimensions 148 x 79 x 33 mm / 5.83 x 3.11 x1.3 in
1@ 21°C, 70°F
2Under optimal atmospheric circumstances

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9 CE Declaration of Conformity
We
Spectra Precision LLC, declare under our sole responsibility that the DG211, a
pipe laser, including remote control RC201 and charger, to which this declaration
relates, is in conformity with the following directives:
2014/30/EU Electromagnetic Compatibility (EMC)
2014/35/EU Low Voltage Directive (LVD)
2011/65/EU Restriction of the use of certain hazardous substances in electrical
and electronoc equipment (RoHS)
Relevant harmonized standards:
EN 60825-1:2014 Safety of laser products -Part1 1: Equipment classication and
requirements
EN IEC 62368-1:2020 + A11:2020 Audio/video, information and communication
technology equipment - Part 1: Safety requirements
EN61000-6-3:2007 + A1:2011 Electromagnetic compatibility - Part 6-3 Generic standards
- Emmission standard for residential, commercial and light-industrial environments
EN IEC 61000-6-2:2019 Electromagnetic compatibility - Part 6-2 Generic
Standards - Immunity standard for industrial environments
The managing director
10 UKCA Declaration of Conformity
We declare under our sole responsibility that the DG211 and RC201 comply with all
applicable provisions of the regulations listed below and are in conformity with the
following standards.
EN 60825-1:2014
EN IEC 62368-1:2020 + A11:2020
EN61000-6-3:2007 + A1:2011
EN IEC 61000-6-2:2019
11 Service and Customer Advice
Spectra Precision (Kaiserslautern) GmbH
Am Sportplatz 5
67661 Kaiserslautern
GERMANY
Phone [phone]
Fax [phone]

Spectra Precision (Kaiserslautern) GmbH
Am Sportplatz 5
67661 Kaiserslautern
GERMANY
Telefon [phone]
www.spectraprecision.com
© 2023, Spectra Precision (US) LLC. All rights reserved.
PN 129798-00 Rev. B (05/23)