NWI NRL900-R User manual

Owner’s Manual
NRL900-R, NRL900-G,
NRL902-R, NRL902-G,
NRL900HT-R, NRL900HT-G

2
SAFETY 3
1. PRODUCT FEATURES 6
2. BUTTON FUNCTIONS 8
3. LCD FUNCTIONS 10
4. UNIT SETUP 11
5. OPERATION 12
6. CHECKING CALIBRATION 14
7. SPECIFICATIONS 16
8. MAINTENANCE AND CARE 17
CONTENTS

3
Safety
The instrument is not to be operated for any purpose other than what it is
designed for as described in this manual. Use of the controls, adjustments
or performance of procedures other than those specied herein may result
in hazardous laser exposure. It is the user’s complete responsibility to
follow the instructions in the manual.
• The laser output information is displayed on the warning
label. Do not remove safety labels from the instrument.
• Do not look straight at the laser beam. Set up the instrument in a
way that prevents laser beam from shooting into people’s eyes.
• Do not disassemble the instrument or attempt to perform any
internal servicing. Repairs and servicing are to be performed only
by authorized service centers.
• Do not operate or calibrate the unit in any other way or use
any other tools or procedures dierent than described in
this manual.
NRL900-G NRL900-R
NRL902-R
NRL900HT-R
NRL902-G
NRL900HT-G

4
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
Caution: Changes or modications to this unit not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
This device contains licence-exempt transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic Development Canada’s licence-exempt RSS(s).
Operation is subject to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may
cause undesired operation of the device.
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est con-
forme aux CNR d’Innovation, Sciences et Développement économique Canada
applicables aux appareils radio exempts de licence. L’exploitation est autorisée
aux deux conditions suivantes :
1) L’appareil ne doit pas produire de brouillage;
2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouil-
lage est susceptible d’en compromettre le fonctionnement.

5
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are de-
signed to provide reasonable protection against harmful interference in a residen-
tial installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guar-
antee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be
determined by turning the equipment o and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
To satisfy FCC&IC RF exposure requirements, a separation distance of 20 cm or
more should be maintained between the antenna of this device and persons during
device operation.
To ensure compliance, operations at closer than this distance is not recommend-
ed.
Les antennes installées doivent être situées de facon à ce que la population ne
puissey être exposée à une distance de moin de 20 cm. Installer les antennes de
facon à ceque le personnel ne puisse approcher à 20 cm ou moins de la position
centrale de l’ antenne.

6
1. PRODUCT FEATURES
1 Plumb Up (only in NRL902 & NRL900HT)
2 Horizontal Laser Beam
3 Infrared Receiver
4 Handle
5 Rechargeable Battery Pack
6 Plumb Down (only in NRL902 & NRL900HT)

7
1. LCD
2. Rotate Speed Switching Button
3. Up/ Increase/ CCW Button
4. Down/ Decrease/ CW Button
5. Detector Link Indicator
(NRL900HT-R/G only)
6. Detector Link Switching Button
(NRL900HT-R/G only)
7. Bluetooth Link Switching Button
(NRL900HT-R/G only)
8. Bluetooth Link Indicator
(NRL900HT-R/G only)
9. Power Button
10. Power Indicator
11. Scan Angle Switching Button
12. Working Mode Switching
Button
13. Normal Leveling Mode
Indicator
14. Slope Mode Indicator
15. Slope Axis Switching Button
16. X Axis Slope Indicator
17. Y Axis Slope Indicator
18. HI Mode/ Alert Indicator

8
2. BUTTON FUNCTIONS
Power Button
Short press to power on the unit.
Press and hold to power o.
Up/ Increase/ CCW Button
In Normal Leveling Mode:
Short press to set the unit to rotate CCW if the scan angle is
360°. Short press to move the line or dot CCW one step if the
scan angle is not 360°.
Press and hold to move the line or dot CCW continuously if the
scan angle is not 360°.
In Slope Mode:
Short press to increase the slope one step.
Press and hold to increase the slope continuously.
Down/ Decrease/ CW Button
In Normal Leveling Mode:
Short press to set the unit to rotate CW if the scan angle is
360°.
Short press to move the line or dot CW one step if the scan
angle
is not 360°.
Press and hold to move the line or dot CW continuously if the
scan angle is not 360°.
In Slope Mode:
Short press to decrease the slope one step.
Press and hold to decrease the slope continuously.

9
Rotate Speed Switching Button
Short press to switch the scanning speed if the scan angle
is 360°.The switching sequence will cycle through:
600rpm, 1200rpm, and 300rpm.
Working Mode Switching Button
Short press to switch the unit working mode between
Normal Leveling and Slope.
Scan Angle Switching Button
Short press to cycle through scanning angles in a sequence:
360°, 0°/ dot, 15°, 45° and 90°.
Slope Axis Switching Button
Short press to switch between X axis slope and Y axis slope
if the unit is working in slope mode.
Bluetooth Link Switching Button
(NRL900HT-R/G only)
Short press to enable or disable the Bluetooth feature.
Detector Link Switching Button
(NRL900HT-R/G only)
Short press to enable or disable the Detector feature

10
3. LCD FUNCTIONS
The NRL900HT-R/G has a two-line LCD that can show
the unit’s current working status.
The unit is leveling.
The unit has completed its leveling and is
rotating at a speed of 300rpm.
The unit has completed its leveling and entered
HI Mode.
The unit has entered Slope Mode, but it’s still
leveling to make the Slope more accuracy.
The unit has completed its leveling and is
projecting a point at an angle without rotating.
The unit has completed its leveling and is
projecting a point at an angle without rotating.
The unit has entered Slope Mode and
completed its leveling. The X axis slope has
been set to +2.002% while the Y axis has been
set to +3.003%.

11
4. UNIT SETUP
Horizontal Mode
You may set your instrument unit up on a tripod, hang it up
on a wall with a wall mount (NUCB05, sold separately) or
simply set it on a stable surface.
Vertical Mode
With the vertical bracket provided (NUCB05, sold separately)
set the instrument on a tripod or stable surface.
Instrument should be set approximately level within ±6°(±1°).

12
5. OPERATION
Automatic leveling
Short press the Power Button to power on the unit. The unit will level
automatically. The Power Indicator will be on.
In horizontal mode:
The unit will activate the laser beam and start rotating after
self-leveling.
In vertical mode:
The unit will activate a laser point without rotating and enter slope mode
after self-leveling
Slope
In horizontal mode:
1. Adjust the unit to point the X/Y direction (nd the X/Y marked on the
top of the unit) towards the target.
2. Power on the unit.
3. Short press the Working Mode Switching Button to switch the unit
to Slope Mode.
4. Short press the Slope Axis Switching Button to switch the
slope axis
5. Press the Up/ Increase/ CCW Button to increase the slope and
the Down/ Decrease/ CW Button to decrease.
6. Short press the Working Mode Switching Button to switch the unit
back to Normal Leveling Mode.

13
In vertical mode:
1. Adjust the unit to point the X/Y direction (nd the X/Y marked on the
top of the unit) towards the target.
2. Power on the unit.
3. Wait for the unit to level itself automatically and the unit will enter
Slope Mode by default (the default slope axis will be X.)
4. Short press the Up/ Increase/ CCW Button or
Down/Decrease/ CW Button to start rotating.
5. Short press the Working Mode Switching Button to switch the
unit back to Normal Levelling Mode
HI Mode and HI Alert
The unit will enter HI Mode after 30 seconds of no button operation
once it has automatically leveled.
In HI Mode, if the unit detects that it is no longer level, it will generate
the HI Alert.
To clear the HI Alert, power the unit o and back on again.
Remote Control
Infrared:
An infrared remote comes with the rotary laser as an accessory. Users
can control the unit with the remote instead of directly operating the
keypad on the rotary laser itself.
Bluetooth and Detector:
NRL900HT-G and NRL900HT-R support remote control through
Bluetooth or the detector.
Users can use NWi Smart Laser App to connect to and control the
rotary laser directly within a distance of 100ft.
Users can use the same app to connect to the detector, while the
detector connects to the rotary laser. In this way, the communication
distance can be extended to a maximum of 1000ft.

14
Although every unit has been calibrated in the factory before shipping,
it is also the user’s responsibility to check the accuracy of the units
before use to avoid costly mistakes.
Checking Horizontal Accuracy
1. Set up the unit at around 98ft(-3ft) away from the wall (or a rod), with
the X direction (check the mark on the top of the unit) aiming toward
the wall.
2. Power on the unit and wait until the unit is leveled. Mark the current
laser line on the wall and name it with h1. If it’s dicult to see the laser
line, the detector can help.
3. Rotate the unit 180° so the -X direction is aiming towards the wall.
4. Wait until the unit is leveled. Find the laser line on the wall and mark
it as h2.
5. The error of the X direction will be h1-h2 and it is required to be
within +/- 1/16in.
6. Check the Y axis through the same method.
7) If the error of any axis exceeds the criteria, the unit needs to be sent
to an authorized service center and calibrated.
6. CHECKING CALIBRATION
Figure 1

15
Checking Vertical Accuracy
1. Set up the instrument between 2 walls (or 2 grade rods) about 30m
from each other. Set it closer to one wall than the other as shown
below (Figure 2).
2. Lay down the instrument as shown. Press the Power Button and the
instrument will nd its level position. Mark the laser position on the wall
as hA and hB.
3. Then re-install the unit to close to the other wall as shown below
(Figure 3), repeat step 2 and mark the points as hA1 and hB1. Calcu-
late Δ 1=hA – hB , Δ2= hA1 - hB1. The dierence between Δ1 and Δ 2
should be within +/- 1/8in.
Figure 3Figure 2

16
7. SPECIFICATIONS
NRL900HT-R/G NRL900-R/G NRL902-R/G
Accuracy Horizontal 1/16 in @ 100ft
Vertical 1/8 in @ 100ft
Plumb up 1/8 in @ 100ft / Plumb up 1/8 in @ 100ft
Plumb down 23/64 in
@ 100ft
/ Plumb down 23/64 in
@ 100ft
Leveling Range 6� ± 1�
Working
Distance
(Diameter)
R: Up to 200ft, G: Up to 250ft
Up to 2000ft with Detector
Rotating Speed 0/300/600/1200 RPM
Slope Range ±8%
Scan Angle 15� / 45� / 90�
Laser Type R: 635nm G: 520nm
Laser Power 3R
Remote Bluethooth, Wireless,
Infrared
Infrared
Up to
Bluethooth: 100ft
Detector: 1000ft
Infrared: 50ft
Up to 50ft
Operanting Tem-
perature -10� C ~ 50� C
Power Supply 4D NI-MH Battery Pack / Up to 20 Hours
LCD YES NO
Size 10.9in x 6.2in x 9in
Weight 6.6 lb
Specications subject to change without notice.

17
8. MAINTENANCE AND CARE
1. Handle instrument with great care. Avoid shock
and vibration. Always store and transport
instrument in its carrying case.
2. Keep instrument dry and clean after use and be-
fore packing it in the carrying case.
3. Check and calibrate the instrument regularly to
maintain accuracy.
4. Keep the lens of the laser aperture clean. Use
soft cloth and glass cleaner to clean it.

18
NORTHWEST INSTRUMENT, INC.
Standard Warranty Terms
The warranty period for the instrument grade laser is 36 months from
the date of purchase. Northwest Instrument, Inc. (Seller) warrants this
instrument made by Northwest Instrument to be free from
manufacturing defects in materials and workmanship. For claims to be
made under this warranty the instrument must be inspected by
Northwest Instrument and the defect must be proven to Seller’s
satisfaction. At the time that it is proven to the Seller’s satisfaction
that the instrument is defective, it shall be repaired or replaced, at the
Seller’s option and returned to the original purchaser at no cost to
them, including transportation charges. Seller’s sole obligation and the
Buyer’s sole remedy are limited strictly to repair or replacement with
these provisions below:
A. The instrument is returned to the Seller, properly packaged with the
transportation
charges prepaid and insured and accompanied by proof of ownership.
Receipt and
previous registration are required.
B. Except for ordinary wear and tear resulting from normal usage, the
instrument, upon
inspection by the Seller is determined to be defective in material and/
or workmanship. Under no circumstances shall the Seller be liable for
any consequential, incidental or contingent damages whatsoever.
Limitations and Exclusions
A. This warranty does not apply to instruments subject to negligence,
abuse, accident, improper operation, instruments damaged in transit
or damage due to unauthorized service repairs made by someone
other than the Seller or any other authorized service personnel.
Circumstances beyond the Seller’s control cannot be warranted.

19
B. This warranty does not apply to regular required maintenance such
as cleaning, adjusting, lubricating or calibrating unless required as a
result of a defect in workmanship or materials. If upon examination of
the instrument, the Seller determines that additional repair services are
required and not covered under this warranty, the Seller shall notify the
Buyer of such repair charges and proceed only after authorization has
been received.
C. This warranty does not apply to instruments damaged in transit to
or from the Seller or any authorized repair center. Other remedies may
or may not be available for transportation damages.

69 King Street, Dover, NJ, 07801
Tel: [phone] Fax: [phone]
Website: www.nwismart.com