Spectra Precision HV302G User manual

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TABLE OF CONTENTS
Introduction
For Your Safety
Components
How to Use the Laser System
Powering the Laser
Turning On/Off the Laser
Laser Setup
Standard Features
Rotation Mode
Scan Mode
Manual Mode
Y-/X-Single Slope Mode
Mask mode
Activating/Deactivating Standby Mode
Operating Examples
Determining the Height of Instrument (HI)
Using the optional HL760/HL760U receiver
Pairing the HL760/HL760U receiver with the transmitter
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Special Features using the optional RC402N
RC402N Features and Functions
Powering the RC402N
Turning On/Off the RC402N Radio Remote Control
Pairing the remote control with the transmitter
MENU Features at the RC402N
Rotation
Scan
Automatic Grade Match
Automatic PlaneLok
Mask mode
Line Scan (Vertical Setup)
Beam Plunge (Vertical Setup)
Setting Menu
Info
Service menu
Setting Menu Selections
HI-alert selection
Sensitivity
Language
CALIBRATION
Checking Calibration of the Y- and X-Axes
Checking Calibration of the Z-(vertical) Axis
Wall Mount
PROTECTING THE UNIT
CLEANING AND MAINTENANCE
PROTECTING THE ENVIRONMENT
WARRANTY
TECHNICAL DATA
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Introduction
Thank you for choosing one of the Spectra Precision Lasers from the Trimble family of precision lasers.
The HV302/HV302G laser is an easy-to-use tool that allows you to take accurate horizontal/vertical
measurements, 90°- and plumb beam transfer.
For Your Safety
For hazardless 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.
- Do not remove warning labels from the unit.
- The HV302/HV302G is a class 3A/3R laser (<5 mW; 600 - 680 nm / G - 520 nm) IEC 60825-1:2007)
- 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.
Caution: Use of other than the described user and calibration tools or other procedures
may result in exposure to hazardous laser light.
Caution: Using different than described at the HV302/HV302G user guide, may result in unsafe
operation.
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HV302/HV302G - Components
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l
q
r
j
k
m
n
o
p
q
r
a
b
c
e
d
f
g
i h

Components
a Power Button
b Battery LED
c Manual/Standby Button
d Leveling LED
e HI/Manual/Standby LED
fUp and Down Arrow Buttons
g Left and Right Arrow Buttons
h Rotation Button
i Scan Button
j Rotor
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k Sunshade
lSighting Guides
m Axes-Alignment-Marks
n Recharge Jack
o Handle
p Battery door
q 5/8 x 11 Tripod Mounts
r Rubber feet
How to Use the Laser System
Powering the Laser
Batteries
WARNING
Ni-MH batteries may contain small amounts of harmful substances.
Be sure to charge the battery before using it for the first time, and after not using it for an extended length of
time.
Charge only with specified chargers according to device manufacturer‘s instructions.
Do not open the battery, dispose of in fire or short circuit; it may ignite, explode, leak or get hot causing
personal injury.
Dispose in accordance with all applicable federal, state, and local regulations.
Keep the battery away from children. If swallowed, do not induce vomiting. Seek medical attention
immediately.

Installing Batteries
Remove the battery door by turning the center screw 90° counterclockwise. Insert batteries (or a
rechargeable battery pack) into the housing so that the negative poles are on the bigger battery spiral
springs.
DO NOT REMOVE RECHARGEABLE BATTERIES FROM THEIR HOLDER AND INSTALL ALKALINE
BATTERIES, SEVERE DAMAGE TO UNIT WILL RESULT IF CHARGING IS ATTEMPTED.
Install the battery door and tighten it by turning the center screw 90° clockwise.
A mechanical switch prevents alkaline batteries from being charged. Only the original rechargeable battery
pack allows charging within the unit.Any other rechargeable batteries have to be charged externally.
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Powering the HV302/HV302G
1 – HV302/HV302G is shipped with a
rechargeable NiMH battery pack, it is keyed to
prevent mis-insertion.
2 – The rechargeable battery pack can be
charged inside of the unit
3 – Alkaline batteries can be used as a
backup
4 – Plus and minus symbols at the battery
door indicate how to put the alkalines
into the battery compartment

Recharging the Batteries
Note: The battery LED shows the approximate charge of the batteries.
The LED will flash when battery voltage is between 3.8 and 4.0 volts.
The LED will be on continuously when battery voltage is less than 3.8 volts.
The charger requires approx. 13 hours to charge empty rechargeable batteries.
For charging, connect the plug of the charger to the recharge jack of the unit.
New or long-time out-of-use rechargeable batteries reach their best performance after being charged and
recharged five times. For Indoor applications the charger can be used as a power supply for the GL.
Alkaline batteries can be used as a backup. Insert 4 D-cell batteries noting the plus (+) and minus (-)
diagrams at the battery door.
The batteries should only be charged when the laser is between 50° F and 104° F (10°C
to 40°C). Charging at a higher temperature may damage the batteries. Charging at a
lower temperature may increase the charge time and decrease the charge capacity,
resulting in loss of performance and shortened life expectancy.
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Laser Setup
Position the laser horizontally (tripod mount and rubber feet downward!) on a stable platform, wall mount or
tripod at the desired elevation.
The laser recognizes automatically whether it is used horizontally or vertically when switched on.
Turning On/Off the laser
Press the power button to turn On the laser.
The LEDs (b, d and e) are turned on for 3 seconds. Self-leveling will start at once. The unit is leveled when
the leveling LED (d) is no longer flashing (once every second). The rotor will not spin until the unit is
leveled. For the first five minutes after the laser self levels, the LED (d) lights solid then flashes every four
seconds to let you know the laser is still level and the HI alert has been activated.
To turn Off the laser, press and hold the power button again.
If the laser is positioned beyond its self-leveling range of ±8%, the manual and leveling indicators flash
simultaneously and a warning sound is emitted. Reposition the laser within its self-leveling range.
Once leveled, the unit constantly monitors its level condition. The height change (HI) alert is activated 5
minutes after self-leveling was performed. The green LED (d) flashes every 4 seconds and HI appears at
the right corner of the optional remote control’s display.
Level errors > 30 mm/10 m put the unit into alert mode because they are generally caused by a disturbance
that could lead to inaccurate measurements. When entering into alert mode, the rotation stops, the laser
beam turns off, a warning sound is heard and the HI/MAN LED (e) flashes 2 x per second. Turn the unit off
and then on again. To ensure your former elevation, now you have to check or arrange the exact height.
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Standard Features
Rotation Mode
Rotation speed can be selected using the Rotation button as well as using the RC402N menu.
Repeatedly pressing the Rotation button toggles through 0, 10, 80, 200, 600 rpm regardless if the unit is in
automatic or manual mode.At 0 rpm, the beam stops automatically close to the +Y- axis center position.
When set up horizontally in automatic mode, using buttons Up/Down increases/decreases the rotor speed from
10 to 80 and then continuously in 10 rpm increments up to 600 rpm.
Note: The zone-scan button can be used to stop the beam’s rotation.
Pointing mode
At 0 rpm, buttons Left/Right move the beam to the left/right side. When set up vertically at 0 rpm, buttons
Up/Down can be used for moving the beam clockwise/counterclockwise and to align the rotor vial.
Scan mode
Scan mode can be selected using the Scan button as well as using the RC402N menu.
Quickly press and release the Scan button to toggle between the pre-selected scan sizes 5°, 15°, 45°, 90°, 180°
and 0; regardless if the unit is in automatic or manual mode.
When working in horizontal automatic mode, press and hold button Up/Down to increase/decrease the line size
in 5° increments. Press and hold button Left/Right moves the scan line to the right/left direction.
When used in automatic vertical mode, pressing and holding button Up/Down moves the scan line
counterclockwise/ clockwise. When set up vertical, pressing and holding button Left/Right moves the scan line
into the right/left direction regardless if in automatic or manual mode. For the first 4 seconds, the scan line
moves slowly than faster.
Note: The rotation control button can be used to stop the scan mode.

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Standard Features
Manual mode
Pressing and releasing Manual button activates/deactivates the manual mode regardless if set up horizontal or
vertical.
Manual mode is indicated by the flashing (once every second) red LED (e).
In Manual mode (horizontal), the Y-axis can be sloped by pressing the Up and Down Arrow-buttons on the laser
or remote control.Additionally, the X-axis can be sloped by pressing the Left and Right Arrow-buttons on the
laser or the remote control.
To resume automatic self-leveling mode, press the manual button three times.
Pressing the Up and Down arrow buttons on the laser or the remote control in vertical mode adjust the slope of
the laser beam. The Left and Right arrow buttons on the laser or the remote control can be used to align the
laser beam to the right/left side.
To resume automatic self-leveling mode, press the Manual button again.
Y- and X- Single Slope Mode
The Manual button on the laser and remote control toggles the unit through Manual, the Y- and X- axis Single
Slope Mode, thenAutomatic Mode. To activate the Y-axis single slope mode, press the Manual button at the
laser or remote control twice and for X-axis single slope mode three times. The Y-axis mode is indicated by the
simultaneously flashing red e and green d LEDs (once every second); in X-axis mode the LEDs flash every
three seconds.
In Y-axis single slope mode, the Y-axis can be sloped by pressing the Up and Down Arrow-buttons on the laser
or remote control, while the X-axis remains in automatic self leveling mode (e.g. when setting up sloped ceilings
or drive ways). In X-axis single slope mode, the X-axis can be sloped by pressing the Right and Left Arrow-
buttons on the laser or the remote control, while the Y-axis remains in automatic self leveling mode.
To resume automatic self-leveling mode from Y-axis single slope mode, press the Manual button twice; from X-
axis single slope mode, press the Manual button once.

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Mask Mode
Mask Mode – allows you to electronically turn off the rotating laser beam (electronic shutters) in up to 3
lighthouse windows to prevent interference with other receivers on the jobsite. Mask Mode can be selected as a
standard feature as well as using the menu.
To activate the mask mode on the + or -Y-axis, press the Up or Down arrow button at the laser or remote
control, then within <1 second press and release the Manual button.
Press the right or left arrow button at the laser or remote control in sequence with the Manual button to
activate/deactivate the mask mode for the + or – X axis.
The RC402N display indicates which side of the laser the beam has been electronically turned off.
Note: The unit always powers up with the mask mode deactivated (default).
Activating/Deactivating Standby mode
Press and hold the Manual button at the laser or remote control for 3 seconds activates the Standby mode.
The self-leveling and rotation will be stopped and the beam will be turned off while the HI alert is still active.
The HI/MAN LED at the laser flashes red every 5 seconds while the RC402N display shows Standby.
To deactivate Standby mode and restore full operation of the laser, press and hold the
Manual button at the laser or remote control again for 3 seconds.

Applications
Interior
Acoustical Ceilings
1. Determine and mark the finished ceiling height and securely install the first piece of wall
molding to this height.
2. Attach the laser onto the wall molding by sliding the wall mount over the wall molding
and turn the locking screws until the wall mount is secured.
3. Make sure the locking knob on the wall mount is loose.
4. To adjust the elevation, turn the fine height adjustment screw until the slider edge is at the zero
(0) mark on the scale (wall molding elevation), and turn the locking knob to tighten it.
Note: To minimize accidental dropping, insert a ceiling wire through the laser’s handle and
twist the wire.
Drywall and Partitions
1. Slide the laser along the elevation scale to the short line at the scale above the 0-mark.
2. Place the laser over the near wall-control point.
Note: If the wall mount is attached to the floor track, make sure the laser is set to the edge of
the track (0-mark).
3. Use the Left/Right arrow button to point the beam towards the far wall-control point.
4. Go to the far wall-control point and use the remote control to adjust the line of the laser
until the laser beam is aligned to the mark.
Note: If you’re using the perpendicular beam for alignment, use the RC402N menu to activate
the Beam Plunge function to move the perpendicular beam to your far wall-control mark.
Note: When the laser beam is on the mark, press the Manual button, then use the line buttons
for left and right adjustment.
Note: After line adjustment is completed, press the Manual button so the laser will
automatically re-level.
5. Install the track or mark the track line on both the floor and ceiling for future track installation.
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Determining the Height of Instrument (HI)
The height of instrument (HI) is the elevation of the laser’s beam.
The HI is determined by adding the grade-rod reading to a benchmark or known elevation.
Set up the laser and place the grade rod on a job-site benchmark (BM) or known elevation.
Slide the receiver up/down the grade rod until it shows an on-grade reading.
Add the grade-rod reading to the benchmark to determine the height of instrument.
Example:
Benchmark = 30.55 m (100.23 ft)
Rod reading = +1.32 m (+4.34 ft)
Height of instrument = 31.87 m (104.57 ft)
Use this HI as a reference for all other elevations.
Vertical Application
Set up the laser on the tripod by using the vertical mounting thread and allow the laser to level in
automatic self-leveling mode.
Push the Manual mode button and rotate the laser until the vertical laser plane aligns with the receiver’s
on-grade position.
Push the manual button again to resume automatic self-leveling mode and use the Left and Right arrow
buttons for fine adjustments.
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Using the Y-Axis Single Slope Mode
1. Set up the laser and align it to the desired slope hub using the sighting guides on
the sunshade.
2. Check the laser beam elevation close to the laser.
3. To activate the Y-axis single slope mode, press the manual mode button twice.
The red and green LED flashes simultaneously (once a second).
4. Set the grade rod with the receiver attached to it on the desired slope/elevation
hub.
NOTE: DO NOT change the receiver position at the rod
5. Press the up and down arrow buttons until you get an on-grade reading on the
receiver.
6. Check the elevations along the direction of the slope
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Using the optional HL760HL760U receiver
To pair the HL760/HL760U receiver with the transmitter
Make sure the transmitter is turned off.
First, turn on the receiver, then press and hold the Deadband (A) and Audio (B) buttons for two seconds.
After two seconds, the display shows MENU first, then RDIO
Press and release the Units (C) button – display shows the current radio mode.
If not already set to LS, press Units (C) button (current mode flashes) and then press Deadband (A) or
Audio button (B) until LS is displayed.
Press Units (C) button again to enter selection.
Press and release the Audio (B) button – display shows PAIR.
Press the Units (C) button again – the display shows PAIR and a rotating bar.
Then press and hold the Manual button and turn on the transmitter (Battery LED flashes fast).
After completing PAIR, OK will be displayed.
The laser pairs now automatically with the new receiver and turns back to the standard function.
Press and release the HL760/HL760U Power button two times to exit the menu at the receiver.
A laser symbol and an antenna is lit to confirm the receiver is ready for communication
with the laser.
Fingerprint function at the HL760/HL760U receiver
Fingerprinting makes sure the HL760/HL760U detects only the laser beam of the paired tarnsmitter.
Laser fingerprinting is automatically activated and confirmed with a clock symbol after a HL760/HL760U has
been paired with the laser. To recognize an ignore laser strikes from other than the paired transmitter takes
typically 5 seconds; sometimes few seconds more.
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or or
A
B
C

Special Features using the optional RC402N
RC402N Features and Functions
The remote control mirrors the basic functionality of the laser keypad and offers additional features using
the Mand Ebuttons.
M-Button : Quickly press and release starts
the MENU entry and can be used to return
to the previous menu position
E-Button: Quickly press and release starts
the selected mode
Manual Button: Quickly press and release
activates/deactivates the manual mode/
single slope modes
Up/Down Arrow Buttons
Left/Right Arrow Buttons
ON/OFF button - press for 1 second to turn
on the unit; press and hold for 2 seconds to
turn off the unit
RC402N Battery- Status- LED (red)
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Battery status laser
Mask mode indication

Powering the RC402N
1. Open the battery door using a coin or similar pry
device to release the battery door tab on the RC402N.
RC402N will be shipped with alkaline batteries
Rechargeable batteries can be used optional but need
to be charged externally.
2. Insert two AA batteries noting the plus (+) and minus (-)
diagrams inside the battery housing.
3. Close the battery door. Push down until it “clicks”
into the locked position.
Turning On/Off the Radio Remote Control
The radio remote control is a hand-held device that allows you to send operational commands to the
laser from a remote location.
Press the power button to turn on the radio remote control.
Note: When the remote control is initially turned on, the standard display (model number and software
version) appear for the first 3 seconds, then the RC402N LCD shows the actual laser function.
With every button press, the LCD backlight is activated and turns off automatically if no button is
pressed for 8 seconds.
To turn off the radio remote control, press and hold the power button for 2 seconds.
If the RC402N is outside of the operating range or not paired with the transmitter,
the LCD shows the model number and software version.
Note: 5 minutes after the last button press, the remote control turns off automatically.
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horizontal setup vertical setup Manual mode Y-axis
slope mode X-axis slope mode

Pairing the remote control with the transmitter
First, make sure the transmitter and the remote control are turned off. Then press and hold the Manual
button and turn on the transmitter. During the next 6 seconds repeat the same steps on the remote control.
The Laser beeps and the remote’s display shows Pairing OK for one second and then the same function
as the laser is actually working to indicate the transmitter has been matched with the
remote control.
RC402N Menu Functions
Press and release Mbutton at the Standard Display to enter the MENU.
The actual available function will be marked in arrow brackets >> <<.
A down arrow at the the right site indicates that the user can scroll down through the menu using the down
arrow button.
After going to the next menu row, an up/down arrow at the the right site indicates that the user can scroll
up/down through the menu using the Up/Down arrows buttons.
Pressing and releasing button M changes the unit always back to the standard or previous display.
Press and release the Up/Down buttons until the desired function at the selected menu row is marked.
Press and release button E to open the submenu OR start the selected function.
Menu functions for the HV302/HV302G
Horizontal Setup
Vertical Setup
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Rotation
Press and release the Mbutton at the Standard Display and select >>Rotation<<.
Press and release button E to display the actual rotation speed. Use the Up/Down buttons to select toggle
through the pre-selected rotation speeds 0, 10, 80, 200 and 600 rpm. Confirm the desired speed by
pressing the Ebutton.
At 0 rpm, the beam stops automatically close to the +Y- axis center position.
When set up horizontally in automatic mode, using buttons Up/Down increases/decreases the rotor speed
from 10 to 80 and then continuously in 10 rpm increments up to 600 rpm.
Note: The zone-scan button at the laser can be used to stop the beam’s rotation.
Scan Mode
Press and release the Mbutton at the Standard Display and select >>Scan<<.
Press and release button E to display the actual scan size. Use the Up/Down buttons to toggle through the
pre-selected scan sizes 5°, 15°, 45°, 90°, 180° and 0. Confirm the desired scan size by pressing the E
button.
When working in horizontal automatic mode, press and hold button Up/Down to increase/decrease the line
Size in 5° increments. Press and hold button Left/Right moves the scan line to the right/left direction.
When used in automatic vertical mode, pressing and holding button Up/Down moves the scan line
counterclockwise/ clockwise. When set up vertical, pressing and holding button Left/Right moves the scan
line into the right/left direction regardless if in automatic or manual mode. For the first 4 seconds, the scan
line moves slowly than faster.
Note: The rotation control button at the laser can be used to stop the scan mode.