Kapro 830 User manual

Automatic
Optical level
Model No. 830
User Manual
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Thank you for purchasing Kapro’s 830 Automatic Optical
Level. This manual will show you how to get the most out
of your optical level, so please read carefully and keep it for
future reference.
APPLICATIONS
The 830 Automatic Optical level can be used for:
• Indoor and outdoor layout and leveling
• Road and plumbing infrastructure development
• Measuring or verifying points in the same horizontal plane
• Measuring height differences between points or objects
• Performing distance estimations from a reference point
• Angle estimation between changing objects in relation to a
reference point
NOTE
Keep this user manual for future reference.
EN

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CONTENTS
• Remarks 4
• Features 5
• Specifications 6
• Overview 7
• Operating instructions 8-9
• Measuring functions 10-12
• Testing and tuning 13
• Testing angles 14-15
• Maintenance and service 16
• Warranty 17

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REMARKS
• Always check the accuracy of the display before operating
and after transporting it.
• Protect the device from contact with moisture and direct
sunlight
• Do not leave the device in the car for long periods of time
• If the storage temperature is different than the ambient
temperature, wait for the device to stabilize before
operating it.
• The measurement accuracy of the device is inuenced
by exposure to extreme temperatures or temperature
changes.
• Protect the device from falls or mechanical shock
• Store the device in its carrying bag during transport
• Avoid shaking the device during transport.
• To avoid damage during transport make sure the
compensator lock (4) is engaged.
• Do not open the device or try to x it or alter it.
• In the event of a problem, the repairs will be carried out by
trained professionals with original spare parts.
NOTE
This device contains precision components
sensitive to abrupt movement. External
shock, impact or dropping it may compromise
its functionality- handle with care to maintain
its accuracy.

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FEATURES
• Telescopic magnication X32
• Working range 120 meters.
• Measuring accuracy 1.6mm / 30 meters.
• 360° Rotating mechanism.
• Built-in lock mechanism for protection when transported.
• Tripod ready: 5/8" thread.
Includes:
Hard plastic carrying case, conical hook, Allen key and a
tuning pin.
Optional:
Professional tripod and a 4m measuring rod.

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Telescopic magnication X32
Working range 120m
Height measurement accuracy 1.6mm/30m
Clear objective aperture 40mm
Compensator accuracy ±0.3" (sec)
Standard deviation for 1km 1.0mm
Compensator working range ±15' (min)
Short focusing distance 0.3m
Stadia ratio 100
Circular vial accuracy 8'/2mm
Angular division 360°/ 400gon
Weight 1.8kg
Tripod thread 5/8" Female
SPECIFICATIONS
The telescope comes in a padded hard carrying case

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1. Base plate
2. Horizontal scale
3. Horizontal circle reference mark
4. Compensator lock
5. Focus adjusting knob
6. Optical peep sight
7. Objective lens
OVERVIEW
8. Horizontal drive screw
9. Leveling screw
10.Circular vial
11.Bubble observing mirror
12.Lens cover
13.Lens focusing knob
14.Tripod mount 5/8" (on bottom)

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OPERATING INSTRUCTIONS
1.1 SETTING UP
1. Set up the tripod on a at, stable area and adjust the
tripod to the user's eye level.
2. Place the device on the tripod and screw the unit tightly
with the 5/8" thread.
3. Align the instrument with the leveling screws (9) so that
the air bubble is in the center of the circular vial. (see g.1).
gure #1
Turn the rst two leveling screws A and B to move the air
bubble so that it is centered between the two leveling screws,
then turn the leveling screw C until the air bubble is in the
center of the circular vial.
The instrument can be carried by lifting the tripod, to ensure
that it isn't damaged during this process, the tripod must be
held vertically (do not put over the shoulder).

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1.2 AIM AND FOCUS
1. Remove the objective lens cover (7), direct the telescope
towards a bright object or hold a white sheet of paper in
front of the objective lens (7) then, turn the lens (13) until
a black crosshair can be seen clearly.
2. Aim the optical pee (6) to direct the telescope towards the
measuring rod.
3. Turn the focus knob (5) until the gradation of the rod ap
pears clearly.
4. Align the black crosshair exactly to the center of the
measuring rod by turning the horizontal drive screw (8).

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2.1 MEASURING HEIGHT
1. Place the instrument between two measuring points: A &
B (see g.2).
2. Position the measuring rod on point A, focus the
telescope to the center of the rod and record the height
value at the center of the crosshair (see g.3).
MEASURING FUNCTIONS
gure #2
gure #4 gure #3
Measuring rodMeasuring rod

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3. Position the measuring rod on point B, focus the
telescope to the center of the rod and record the height
value at the center of the crosshair (see g.4).
4. The height difference between the two points:
h= 1.78 – 1.215 =0.565m
2.2 MEASURING DISTANCE
1. Aim the telescope at the measuring rod and record the
values of the upper and lower stadia hairline (see g. 5 & 6).
2. Multiply the difference of both Stadia hairline height
measurements by 100 to get the distance value of the
measuring rod to the instrument:
(1.347 – 1.042) x 100 = 30.5m
gure #6
gure #5
Stadia hair
Cross hair
Upper line of Stadia hair
Lower line of Stadia hair

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2.3 MEASURING ANGLES
1. Aim the telescope towards point A, rotate the horizontal
scale (2) so that the zero points towards the reference
mark (3) (see g.7).
2. Aim the telescope towards point B, read off the angle value
on the scale (2) at the reference mark (3) (see g.7).
gure #7
A
Horizontal scale
Reference mark
B
Horizontal scale
Reference mark
Horizontal scale Horizontal scale

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Before using this instrument or after a long transportation,
the leveling and indication accuracy should be tested.
3.1 TESTING THE CIRCULAR BUBBLE VIAL
1. Adjust the telescope with the leveling screw knob (9) so
that the air bubble is in the center of the circular vial (10).
2. Rotate the instrument by 180°, the air bubble should stay
centered. If the bubble is not centered, the circular bubble
vial must be readjusted.
3.2 ADJUSTING THE CIRCULAR BUBBLE VIAL
1. Rotate the leveling screw knob (9) move the air bubble
toward the 1/2 of the distance to the center of the circular
vial (see g.8).
2. Use the Allen key to center the bubble to the middle of
the circular vial (see g.9).
3. Repeat the above steps until the air bubble stays in the
center of the circular vial, no matter which direction the
telescope in turned to.
gure #9 gure #8
Allen key
Rotate leveling screw knob
TESTING AND TUNING

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1. The testing must be conducted at a distance of 30m.
Place the telescope in the center between the two
measuring points: A & B (see g.10)
2. Read the heights of the two measuring rods and calculate
the difference (d) between a1 and b1.
Example: a1= 1.937m b1=1.689m a1-b1 = 0.248 = d
3. Place the telescope at 1 meter distance from the
measuring rod A, read and write down the height of a2
(on rod A).
4. Calculate b2'=a2- d , write down the height of b2 (rod B).
If there is a difference of over 3mm between b2 and b2',
the crosshair must be readjusted.
Example: a1= 1.724m d= 0.248 Then a2-d=1.476=b2'
When measuring the height b2 =1.476 ±2mm
gure #10
TESTING ANGLES

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3.3 ADJUSTING THE CROSSHAIR
1. Remove the lens cover. (12)
2. Using the adjusting pin, turn adjusting screw clockwise
or counterclockwise until the height value of b2 and b2'
on measuring rod B, are the same.
3. Return the lens cover on the lens.
b2'=a2-d
gure #11

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MAINTENANCE AND SERVICE
Careful use and maintenance of the instrument can guarantee
its accuracy and efciency.
1. After measuring, wipe clean all the surfaces of the
instrument and put into the carrying case.
2. Dust off all optical parts with a soft brush and clean the
lens with lens tissue.
3. Only an experienced technician, familiar with the device
structure will repair a damaged or malfunctioning device.
Otherwise, the device should be sent to the factory for
repair. Under no circumstances should the device be
opened and repaired.
4. A bag of silica gel dryer is included in the case for the
removal of residual moisture. Renew the bag of silica gel
regularly.
5. The unit should be kept in a dry and dust-free environment.

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WARRANTY
This product is covered by a two-year limited warranty
against defects in materials and workmanship. It does no
cover products that are used improperly, altered or repaired
without Kapro approval. In the event of a problem with the
product you have purchased, please return the product to the
place of purchase with the proof of purchase.
Model #830
MAINTENANCE AND SERVICE

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© 2017 Kapro Industries Ltd.