Johnson 40-6936 User manual

Electronic Digital Theodolite

with Laser

Model No. 40-6936

Instruction

Manual

Congratulations on your choice of this Electronic Digital Theodolite with

laser. We suggest you read this instruction manual thoroughly before

using the instrument. Save this instruction manual for future use.

This is a Class IIIa laser

tool and is manufactured

to comply with CFR 21,

parts 1040.10 and

1040.11 as well as

international safety rule

IEC 285.

8863H-English_Manuals 3/14/15 12:58 PM Page 1

Table of Contents

1. Kit Contents

2. Features and Functions

3. Safety Instructions

4. Location/Content of

Warning Labels

5. Location of Parts/Components

6. Operating Instructions

7. Using the Product

8. Self-Check & Fine Calibration

9. Technical Specifications

10. Care and andling

11. Product Warranty

12. Warranty Registration

13. Accessories

14. Trouble Shooting

1. Kit Contents

Description for Model 40-6936 Qty.

Electronic Digital Theodolite with Laser

Alkaline Battery Compartment (batteries not included) 1

NiM Rechargeable Battery Pack 1

3-7.5V Battery Adapter 1

Rain ood 1

Adjustment Tools 1

Instruction Manual with Warranty Card 1

ard-Shell Carrying Case 1

8863H-English_Manuals 3/14/15 12:58 PM Page 2

2. Features and Functions

• Electronic Thoedolite with dual-axis compensator and laser beam

integrated in the telescope. Beam is focussable.

• 5” angular accuracy - accurate enough for any construction job

• Vertical axis compensation - tilt sensor provides the highest level

of accuracy and can be turned on or off depending on job

requirements

• Dual LCD with large characters - easy to see angle readings

eliminate errors and reduces eye fatigue

• Backlit LCD screen and telescope reticle - allows work in low light

conditions including indoors and extended hours near dawn

and dusk

• Simple six button keypad - quick setups and simple operation with

low operator learning curve

• Large suite of programmable settings - provide multiple options for

various users and job requirements including zero position of

vertical angle

• Measurement units in degrees, gon, or mils

• 90 degree angle audible notification - for quick turning and set out

of right angles

• Instant conversion of vertical angles to percent of grade -

convenient for slope work

• Ni-M rechargeable battery pack and charger - lower operating cost

with reusable batteries

• Alkaline battery pack standard - provides backup and eliminates

downtime if the charge is lost in the middle of a job

• Battery status indicator - no power surprises and allows for better

planning

• Automatic shutoff - conserves battery life when not in use - can be

disabled if desired

• Laser Plummet

8863H-English_Manuals 3/14/15 12:58 PM Page 3

3. Safety Instructions

Please read and understand all of the following instructions, prior

to using this tool. Failure to do so, may void the warranty.

DANGER!

Class IIIa Laser Product

Max. Power Output: ≤5mW

Wavelength: 625-645nm

THIS TOOL EMITS LASER RADIATIO .

DO OT STARE I TO BEAM.

AVOID DIRECT EYE EXPOSURE.

ATTENTION IMPORTANT

• Read all instructions prior to operating this laser tool. Do not remove any labels from tool.

• Do not stare directly at the laser beam.

• Do not project the laser beam directly into the eyes of others.

• Do not set up laser tool at eye level or operate the tool near a reflective surface as

the laser beam could be projected into your eyes or into the eyes of others.

• Do not place the laser tool in a manner that may cause someone to unintentionally

look into the laser beam. Serious eye injury may result.

• Do not operate the tool in explosive environments, i.e. in the presence of gases or

flammable liquids.

• Keep the laser tool out of the reach of children and other untrained persons.

• Do not attempt to view the laser beam through optical tools such as telescopes as

serious eye injury may result.

• Always turn the laser tool off when not in use or left unattended for a period of time.

• Remove the batteries when storing the tool for an extended time (more than 3 months)

to avoid damage to the tool should the batteries deteriorate.

• Do not attempt to repair or disassemble the laser tool. If unqualified persons attempt

to repair this tool, warranty will be void.

• Use only original Johnson®parts and accessories purchased from your Johnson®

authorized dealer. Use of non-Johnson®parts and accessories will void warranty.

8863H-English_Manuals 3/14/15 12:58 PM Page 4

4. Location/Content of Warning Labels

8863H-English_Manuals 3/14/15 12:58 PM Page 5

5. Location of Part/Components

andle

Targeting Sight

Objective Lens

orizontal Fine

Motion

orizontal Clamp

LCD Display

Operating Keys

Tripod Base

Plate

andle Screw

Center Mark &

Vertical Plate

Tubular Vial

Circular Vial

Battery Case

Eyepiece

Telescope Fine Motion

Telescope Clamp

Tribrach Locking

Lever

Focusing Ring

Laser Plummet

On/off Knob

Communication Port

Leveling Screw

Laser On/Off Knob

8863H-English_Manuals 3/14/15 12:58 PM Page 6

6. Operating Instructions

Display and Display Explanation

1. t - Total value of repeated angles measured

2. V - Vertical angle

3. Number of repeated measurements

4. AVG - Value of repeated angle measurements

5. R - Angle increases with clockwise turning

6. L - Angle increases with counterclockwise turning

7. TILT - Tilt sensor

8. F - Function mode

9. G - Angle unit GON

10. % - Vertical slope in percent

11. REP - Repeated angle measurement mode

12. Battery power indication

5 6

101112

IMPORTA T: It is the responsibility of the user to verify the

calibration of the instrument before each use.

8863H-English_Manuals 3/14/15 12:58 PM Page 7

Change the number indicated by the cursor

Power key

Zero the horizontal angle reading

Change vertical angle to percent of grade

Repeated angle measurement

Function key selection

old horizontal angle reading

Set horizontal-angle rotation direction

Illuminating the display

Moving the cursor to the left

Moving the cursor to the right

Operating Panel and Operating Keys

ote: If the display shows “b” after activating the tilt sensor, the

instrument exceeds its compensation range and the instrument

should be leveled.

8863H-English_Manuals 3/14/15 12:58 PM Page 8

Preparation Before Measurement

Centering and Leveling with Laser Plummet

• Level and center the instrument precisely to ensure its best

performance.

• Extend the tripod legs to a suitable working height with equal length

legs. Spread the tripod legs and make the tripod head as level as

possible while at the same time placing the center of the tripod head

directly over the ground point. Press the leg feet firmly into the

ground and make sure the tripod legs are locked.

• Set the instrument carefully on the center of the tripod head

orientating the leveling screws centered with each tripod leg. Attach

the instrument to the tripod. Make sure the center mark is visible on

all three leveling screws (this ensures a complete leveling range).

• With the instrument turned on, turn on the laser plummet by turning

the laser plummet on/off knob clockwise. Adjust the Laser Plummet

so the laser dot hits the ground clearly. If you cannot see the laser

dot hit the ground, carefully lift two of the tripod legs, then pivot on

the third leg, carefully moving the tripod until the ground point is

within one inch of the laser dot. Press the two tripod feet back into the

ground and recheck the laser plummet alignment. Repeat if

necessary until the ground point is being hit by the laser dot.

• Now center the instrument’s Circular Vial by carefully extending or

shortening the tripod leg closest to the bubble. Note: Use only two

legs. Repeat until alignment is within 6mm (1/4 inch) or less.

8863H-English_Manuals 3/14/15 12:59 PM Page 9

• Rotate the leveling screw 1, 2 to move the bubble to the center line

of circular level which is perpendicular to the connection line 1, 2.

• Rotate the leveling screw 3 to move the bubble to the center of the

circular level.

• Next use the Tubular Vial to accurately level the instrument. Unlock

and turn the instrument so that the tubular vial is parallel to BC, any

two leveling screws. Note the direction to turn the leveling screws in

the graphic. When turning the two screws, adjust them equally. The

bubble will move in the direction that your left thumb turns. To move

the bubble to the right, turn the B leveling screw in and

simultaneously turn the C leveling screw in. To move the bubble left,

move both screws out simultaneously. Once centered turn the

instrument 90º over A leveling screw and turn screw A in or out until

bubble is centered. Go back to the first position BC, and repeat until

the bubble is centered in both positions. Then from position BC turn

180º to check the adjustment. If the bubble stays centered or within

1/4 division, you are level.

8863H-English_Manuals 3/14/15 12:59 PM Page 10

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