Laser Reference Pro Shot Alpha Manuel utilisateur

Laser Operations Guide

Laser

excellence

since 1991

You now own the Pro Shot Alpha, a high accuracy, ultra rugged servo

leveled automatic laser for your most demanding leveling or grading

operations.

Please take a moment to read this manual, it contains vital information

on safely operating and getting the best results from your new laser.

Case Contents ………………............……………………………. 1

Battery Installation …………………............…………………….. 1

Controls & Displays …………….............………………………... 2

Safety ….………………………….............………………………. 4

Initial Setup …………………….............…………………………. 5

Level Setup …………………............…………………………….. 6

Slope Matching ………………...........……………………………. 7

Calibration ……………………….............………………………... 8

R9 System Receiver …………………………........……………. 10

Rechargeable Battery Kit …………………….........……………. 11

Maintenance & Troubleshooting ………………........…………. 12

Warranty & Specifications ………………………..........……….. 13

Case contents (will vary depending on package ordered)

Laser

Batteries

Receiver

Instruction packet

Battery installation

Pull on tab at base of door to remove.

Install 4 C-cell batteries (alkaline, or

NiMH rechargeable) according to

instructions molded on battery holder.

Carbon batteries are not recommended.

Replace battery door by hooking cover

into slots at the top of the housing and

pressing the tab closed. Do not plug

a charger into the laser unless NiMH

batteries are installed!

NiMH batteries should be fully charged

(about 12 hours) before first use.

Power

switch

Power

switch

X Axis leveling

(green) & limit

(red) indicators

X Axis leveling

(green) & limit

(red) indicators

Y Axis leveling

(green) & limit

(red) indicators

Y Axis leveling

(green) & limit

(red) indicators

Y Axis manual

(amber) & limit

(red) indicators

Y Axis manual

(amber) & limit

(red) indicators

Laser power and

low battery indicators

Laser power and

low battery indicators

Rotation speed

selector & speed

indicator

Rotation speed

selector & speed

indicator

Manual grade

matching mode

selector

Manual grade

matching mode

selector

Manual grade

matching

controls

Manual grade

matching

controls

Y Axis

X Axis

Battery charging

jack is in back of

base pan below

battery cover

On grade accuracy

selector

Volume control

Power switch

Rear LCD display

Five channel display

Alignment sights

Laser Controls

•Alignment Sights are used to align the slope axis of the laser.

•Power Switch turns the laser on and off.

•X axis Leveling LEDs: green LED lights when unit is leveling, both red

LEDs (X & Y axis) flash if a leveling limit is reached.

•Y axis Leveling LEDs: green LED lights when unit is leveling, both red

LEDs (Y & X axis) flash if a leveling limit is reached.

•Y Axis Manual LEDs: amber LED lights when in Slope Matching mode, red

LED flashes (with X red LED) if leveling limit is reached.

•Power LED is lit green when unit is on. When the laser finishes leveling,

the LED will flash 5 times, indicating that the Height Alert is active.

•Battery Life Indicator flashes amber when battery power is low.

•Rotation Speed Button toggles between high and low speeds. Rotation

speed LED is lit when unit is set to high speed.

•Manual Slope Switch, a deliberate (1/2 second) press and release will set

the laser into manual grade matching mode.

•Manual Slope Control Switches are used to tilt the laser plane to the

desired slope.

Receiver Controls & Displays

•Power Switch turns receiver on & off

•Volume Switch toggles sound from high to low to off.

•On Grade Accuracy Switch toggles from standard to fine to coarse.

Note: The Alpha is a CDRH class II laser and an IEC 60825 class 2 laser.

It conforms to applicable EC directives regarding RFI and EMI, and to FDA

performance standards 21 CFR subchapter J.

Warning placard

Safety labels

LASER LIGHT

DO NOT STARE INTO BEAM

CLASS 2 LASER PRODUCT

CAUTION

LASER LIGHT

DO NOT STARE

INTO BEAM

635nm - 670nm

CLASS II LASER PRODUCT

Calibration

Although the Alpha transmitter is calibrated at the factory and is an

exceptionally rugged laser, it is worthwhile to check calibration before you

first use your laser. To ensure the best possible results with your laser,

check calibration periodically, or if has been shipped or handled roughly.

Check your setup

Set the tripod in a location away from vehicular and foot traffic. Choose

the location to provide line of sight coverage to the jobsite. The warning

placard should be displayed on the job, and the operator should have an

operator’s certificate card. These are included in the instruction packet. It

is a good jobsite practice to check your setup from time to time. Use

engineered benchmarks to assure that your setup is correct and matches

job specifications. On large sites or where accuracy is critical, verifying

the elevation benchmarks you will be working off should be standard

procedure. If there are no suitable benchmarks on the site, you can set

your own by driving stakes and recording their elevations, or by marking

the laser beam height on stable objects such as telephone poles,

concrete walls, etc. The benchmarks should be 90º apart for greatest

accuracy.

Work as close to the laser as possible

You can work up to 1000 feet (305M) from the Alpha laser utilizing the R9

receiver. As with all lasers and optical instruments, the farther you go, the

more error can add up. Set the laser in a safe place, as close as possible

to your work.

Maintain your equipment

Make sure your tripod and mounting hardware are tight, and that your

grade rods are in good condition. This can prevent errors and perfor-

mance problems.

Automatic Leveling

Press the power switch to turn the laser on. The green LEDs in the “AUTO X”

and “AUTO Y” axis windows come on solid or flash to indicate motor drive

signals while the laser is auto-leveling. When leveling is completed, height

alert will become active, signaled by the Laser Power LED flashing five times.

When level is reached in both axes, the laser beam and green power LED

will light, and the rotor will spin. The Height Alert is activated about 5 seconds

after the laser finishes leveling. Height alert flashes warning LEDs and turns

off the laser if the instrument is disturbed to the extent that accuracy could be

affected. If the Height Alert turns the laser off, power the laser down and turn

it on again, allow it to relevel, and reset your receiver against your bench-

marks. If a leveling limit is reached, (the leveling drive reaches the end of its

travel), the green LED for the affected axis turns off and the both red X & Y

limit LEDs flash. Adjust the laser so that it is within its leveling limit and

restart the laser.

Disabling Height Alert • Caution!

To disable the height alert, when turning the laser on, press and hold the

rotation speed button, press and release the power button, and then release

the rotation speed button. The height alert prevents the laser from re-

leveling at a different height of instrument. Disabling the alert could

compromise working accuracy.

Power

switch

Power

switch

X Axis leveling

(green) & limit

(red) indicators

X Axis leveling

(green) & limit

(red) indicators

Y Axis leveling

(green) & limit

(red) indicators

Y Axis leveling

(green) & limit

(red) indicators

Y Axis manual

(amber) & limit

(red) indicators

Y Axis manual

(amber) & limit

(red) indicators

Laser power and

low battery indicators

Laser power and

low battery indicators

Rotation speed

selector & speed

indicator

Rotation speed

selector & speed

indicator

Manual grade

matching mode

selector

Manual grade

matching mode

selector

Manual grade

matching

controls

Manual grade

matching

controls

Slope Matching

Slope Matching Mode, Y axis manually adjusted, X axis auto

levels.

•Use the sights on top of the laser to align it with the slope direction axis.

•Press the power switch to turn the laser on.

•Press the “MAN” button for about 1/2 second. The “MAN Y” axis amber

LED flashes quickly, (indicating the Y axis is in manual mode). Both “AUTO

Y” LED’s become inactive while the “AUTO X” LED’s continue to operate in

automatic mode.

•Use the arrow up and down buttons to move the laser plane to the desired

slope in the Y axis. When facing the control panel, the Up button moves the

far plane down and the Down button moves the near plane down. The X axis

will continue to auto level.

•Note: Any press of the “MAN” or arrow buttons restarts the Height Alert.

•If a Y axis leveling limit is reached while manually setting slope, the red

LED in the “MAN Y” axis window and the X axis red limit LED will flash. The

laser must be turned off to return to automatic mode.

•The green power LED and the laser beam will turn on once the X axis

reaches level.

In this mode, the Y axis does not self level. The X axis continues to self level.

The user should set benchmarks and periodically check the laser set up to

ensure accurate work.

•To exit this mode, press the “MAN” button (a deliberate ~1/2 second

press). The laser will switch to full automatic leveling mode. If the laser is

powered down, when it is restarted, it will always start in full automatic

leveling mode.

High Speed Rotation

•In either leveling mode, the laser rotation speed can be increased from 600

to 1200 rpm. The increased speed allows more frequent update of informa-

tion at the laser receiver when using automatic machine control systems on

mobile construction equipment such as scrapers, dozers, or graders. With

hand held laser receivers, there is no need to use the faster rotation speed.

Increased rotation speed draws more power and battery life will be shorter,

so the faster setting should only be used when necessary.

•Press the rotation speed button to toggle back and forth between high and

low speeds. The laser will always power on in the 600 rpm mode. When the

high speed mode is entered, the green LED in the “1200” window will illumi-

nate.

Calibration is your responsibility, check it often.

It is well worth the effort to check calibration before you first use your laser,

and then periodically to ensure that you are doing the highest quality work.

Always check calibration if the laser has been handled roughly.

Follow the steps below to check the calibration of the laser and make

adjustments if necessary.

1. Attach the laser to a flat head tripod approximately 100 feet from a wall or

other stable vertical surface, (at telephone pole or building wall will work).

The tripod head must be level enough to allow you to turn the laser 360

degrees with minimal re-leveling needed. Use the tripod leg adjustments to

level the tripod head. Position the laser so that either direction of the cross

(X) axis is pointed at the target.

2. Turn the laser on and allow it to level.

3. Take the receiver to the target and move it up or down until you get a on

grade display in the LCD, or a steady tone. Make an on grade mark using

the receiver’s beam center notch.

4. Return to the laser, rotate it 180 degrees, and allow it to re-level. The

opposite cross axis direction is now aimed at the target. Use the receiver to

make another on grade mark at the target.

5. If there is a difference between the two marks, make another mark half

way between them. This third mark represents true level. If the distance

between the outer marks and the center mark is within the accuracy specifi-

cation of the laser, go to step 9. If not, continue with the next step.

6. Remove the battery door and the rubber plug on the lower left side of the

battery holder. The four buttons switches control calibration of the laser. A

label shows the axis and direction of travel that each button controls. Each

push of a button moves the calibration by approximately 3 arc seconds,

(1/64” @ 100’) / .4mm @ 30m). Use a small screwdriver or dull pencil to

press the plus or minus X axis button to bring the beam to the true level

mark. Go to the target and check the beam elevation. If the elevation is

correct, continue to the next step, if not, repeat this step until the beam

reaches the correct height.

7. Check the cross axis adjustment by rotating the laser 180 degrees to the

first position, let it re-level, and check that the beam is on the true level mark.

8. Rotate the laser 90 degrees so that either direction of the Y axis is aimed

at the target. Allow the laser to re-level and make an elevation mark at the

target. If the distance between this mark and the true level mark is within the

laser’s accuracy specification, calibration is complete. If not, continue to the

next step.

9. Use the Y axis push buttons to move the beam until it coincides with the

true level mark. Calibration is complete.

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