Topcon RL-VH3C Instruction Manual

INSTRUCTION MANUAL

ROTATING LASER

INSTRUCTION MANUAL

ROTATING LASER

Declaration of Confomity

 R&TTE-Directive:99/5/EC

WE:  TOPCON EUROPE B.V.

 Esse Baan 11, 2908 LJ Capelle a/d IJssel, 
 The Netherlands.

declare on our own responsibility, that the product:

Kind of Product:

Rotating Laser

Type Designation:RL-VH3C
is in compliance with the following norm(s) or documents:

I-ETS 300 220 / 10.1993
ETS 300 683
EN 60950

EU

1

Foreword

Thank you for purchasing the Topcon RL-VH3C Rotating Laser.
It is one the world’s most advanced lasers.
To quickly and effectively use the RL-VH3C, please read these brief instruc­tions carefully; and keep them in a convenient location for future reference.

Handling Precautions

1 Vibration and Impact Protection

When transporting the instrument, provide protection to minimize risk of severe vibration
or impact. Severe vibration or impacts may affect beam accuracy.

2.Laser Scanning Interference

Particular reflective surfaces such as mirrors and some glass surfaces, can cause beam
reflection that in very rare circumstances can interfere with the laser scanning function. If
this should happen, simply change the location of the laser or cover the reflective surface.

Caution:

Use of adjustment controls or performance procedures other than those specified herein
may results in hazardous radiation exposure.

2

Safety Information

In order to encourage the safe use of products, to prevent damage to properties, and to
prev ent any danger to the operator and to others , important warnings are placed on the prod­ucts and inserted in the instruction manuals.
We suggest that everyone understand the meaning of the following displa ys and icons bef ore

reading the “Safety Cautions” and text.

Injury refers to hurt, burn, electric shock, etc.
Physical damage refers to damage to equipment and structure or furnishings.

Display Meaning

WARNING

Ignoring or disregard of this display may lead to death or serious
injury.

CAUTION

Ignoring or disregard of this display may lead to personal injury or
physical damage to the instrument.

3

Safety Cautions

WARNING

• There is a risk of fire, electric shoc k or physical harm if y ou attempt to disassem­ble or repair the instrument yourself.

This is to be carried out by TOPCON or an authorized dealer, only!

• Laser beam can be dangerous, and can cause eye injury if used incorrectly.

Never attempt to repair the instrument yourself.

• Cause eye injury or blindness.

Do not stare into beam.

• Risk of fire or electric shock.

Do not use a wet battery.

• May ignite explosively.

Never use an instrument near flammable gas or liquid matter, and do not use in a coal
mine.

• Battery can cause explosion or injury.

Do not dispose in fire or heat.

• The short circuit of a battery can cause a fire.

Do not short circuit battery when storing it.

4

CAUTION

Use of controls or adjustment or performance of procedures other than those specified
herein may result in hazardous radiation exposure.

Let the laser beam reach the aimed object or the target without anybody else in the laser
beam path. When operating in an open area, avoid radiating laser beam at eye level. It
is quite possible for the beam to enter into one's eyes, and it is possible to lose visual
sight temporarily , and lose one's caution and aw areness of other dangers - avoid glaring
beam.

Do not allow skin or clothing to come into contact with acid from the batteries, if this does
occur then wash off with copious amounts of water and seek medical advice.

Risk of injury by dropping the instrument or case.
Do not use a carrying case with damaged belts, grips or latches.

It could be dangerous if the instrument falls over , please check that you fix the instrument
to the wallmount or tripod.

Risk of injury by dropping a tripod and an instrument.
Always check that the screws of tripod are tightened.

Please note that the tips of tripod can be hazardous, be aware of this when setting up
or carrying the tripod.

5

User

Wear the required protectors (safety shoes, helmet, etc.) when operating.

Exceptions from Responsibility

1) The user of this product is expected to f ollow all operating instructions and mak e periodic checks of the
product’s performance.

2) The manufacturer, or its representatives, assumes no responsibility for results of a faulty or intentional
usage or misuse including any direct, indirect, consequential damage, and loss of profits.

3) The manufacturer, or its representatives, assumes no responsibility for consequential damage, and
loss of profits by any disaster, (an earthquake, a fire, an accident, storms, floods, an act of a third party
and/or a usage other than under normal conditions.)

4) The manufacturer, or its representatives, assumes no responsibility for any damage, or loss of profits
due to a change of data, loss of data, an interruption of business etc., caused by using the product or
an unusable product.

5) The manufacturer, or its representatives, assumes no responsibility for any damage, or loss of profits
caused by usage other than those usages explained in the user manual.

6) The manufacturer, or its representatives, assumes no responsibility for damage caused by wrong
movement, or action due to connecting with other products.

6

Laser Safety

This product projects a visible laser beam during operation. This product is manufactured
and sold in accordance with “Performance Standards for Light-Emitting Products” (FDA/BRH
21 CFR 1040) or “Radiation Safety of Laser Products, Equipment Classification, Require­ments and User’s Guide” (IEC Publication 825) provided on the safety standards for laser
beam.
As per the said standard, this product is classified as “Class 2 (II) Laser Products”.
This is a simple product to operate and does not require training from a laser safety officer.
In case of any failure, do not disassemble the instrument. Contact TOPCON or your
TOPCON dealer.

Labels

The labels on your unit may be slightly different from the samples shown due to specific
local requirements.

CLASS II LASER PRODUCT

WAVE LENGTH 635n m

1mW MAXIMUM OUTPUT

LASER RADIA TION-DO NOT

STARE INTO BEAM

CAUTION

AVOID EXPOSURE

LASER LIGHT IS EMITTED

FROM THIS APERTURE

CLASS2 LASER PRODUCT

DO NOT STARE INTO BEAM

LASER RADIATION

Maximum output1ｍW Wave length 635nm

Beam aperture

Beam aperture

7

Contents

Foreword .............................................1

Handling Precautions ....................... 1

Safety Information ............................. 2

Safety Cautions ................................3

User .................................................. 5

Exceptions from Responsibility ......... 5

Laser Safety ......................................6

Contents ........................................... 7

Standard System Components ......... 8

Nomenclature and Functions ............9

Preparation For Use ........................... 11

Battery Installation ............................ 11

Instrument Set-up Procedure ........... 11

Horizontal Rotation ........................... 11

Vertical Rotation ............................... 12

Battery warning lamp ........................ 12

Auto-leveling lamp ............................ 12

To turn the automatic leveling off ...... 12

Operation ............................................. 13

Scanning Mode ................................. 13

Laser Sensor Mode ..........................14

Laser Pointing Mode (stop) ...............14

Changing rotation speed
(only available in laser pointing mode)14

Height Alert function .........................15

Setting Slopes ...................................16

How to set slopes ..............................17

To cancel slope settings ....................17

Setting slope in Y axis .......................17

Line Control

(manual vertical beam alignment)......18

Maintaining Power Sources ...............19

How to replace dry batteries .............19

Checking and Adjusting .....................20

Horizontal Calibration ........................21

Horizontal Rotation Cone Error..........24

Vertical Calibration ............................25

Storage Precautions ...........................28

Standard / Optional Accessories .......29

Specifications ......................................37

8

Standard System Components

1 RL-VH3C Instrument.............................................................................1pc.

2 Magnetic Target ....................................................................................1pc.

3Wall Mount (Model 1C)..........................................................................1pc.

4 D-size dry cells .....................................................................................4pcs.

5 Carrying case .......................................................................................1pc.

6 Calibration decals..................................................................................1set

7 Instruction manual.................................................................................1vol.

Please make sure that all of the above items are in the box when you unpack.
Additional Magnetic Scanning Targets may be included in some markets.

Remote Control Option

There are two RL-VH3C models, standard and remote control compatible.
Standard models cannot be operated using the optional RC-30 remote controller (see page 36).
Remote control compatible models are designated by the letter "R" following the model name
on the serial number tag as shown below.

RL-VH3C
########

Standard model

RL-VH3C R

########

Remote control compatible

9

Nomenclature and Functions

Handle

Rotary head

Battery compartment lock

Battery holder

Laser emitting window

Beam aperture

Leveling screw

Panel

RL-VH3C Magnetic Scanning Target

Magnet

Datum line

Index

Index

Wall Mount 1C

Clamp lever

Laser Mounting
screw

Elevation
clamp knob

Reflectors

10

Control Panel

Auto/manual leveling control

Leveling lamp

Power switch

Manual mode lamp

Mode switch control

Scan mode

Laser sensor mode

Laser pointing mode

X/Y axis selection key

X/Y axis lamp

Head rotates slowly,
searching for Magnetic
Scanning Target. When
target is placed in beam
path, laser rapidly scans
back and forth on target.

Laser sensor mode
Head rotates at 300 rpm.
Use this setting when using
an optional electronic laser
sensor such as the Topcon
LS-70.

Head stops rotating and the
beam can be positioned by
manually turning the head.

Select X or Y axis for
manual beam sloping.

ON: Manual leveling mode
OFF: Auto-leveling mode

ON/OFF of Auto-leveling. To turn
off the auto-leveling, press this
key twice. To turn on the auto-lev­eling again, press this key once.

Circular level for
vertical operation

Flashing: Laser is leveling
On: Auto-leveling is completed
(RL-VH3C remote control model has
standby mode)

Laser mode is switched
alternately as follows.

Speed control

With 'Laser Point­ing Mode'
selected, the rota­tion speed of the
head can be
changed.

Alignment
control

Low battery alert

11

Preparation For Use

Battery Installation

For battery placement or replacement instructions, see Maintaining Power Sources section,
page 19.

Instrument Set-up Procedure

Horizontal Rotation

1 Set the instrument on any smooth surface that is

within ±5° of true level. The RL-VH3C auto-level
system will not function if the unit is placed more
that 5° out of level. For best operation, it is recom­mended that it be mounted to a tripod or the Top­con Wall Mount Model 1C (provided).

Slope can be set in both axes, X and Y. See "Setting
Slope" section, page 16.

Leveling range

Horizontal

12

Vertical Rotation

1 Place the instrument on its back as shown in the illustra-

tion.

2 Turn the leveling screw on the instrument until the bubble

is centered in the circular level vial.

Battery Warning Lamp

Flashing : The power is low
ON Solid: Dead batteries
Replace the batteries with new ones.

Auto-leveling lamp

Flashing : Auto-leveling is in process. When automatic leveling is almost complete, the

flashing rate will be slow. The head will not rotate and the laser beam will not
emit during the auto-leveling process.

ON Solid: Auto-leveling is complete.

The rotary head is active and emits the laser beam.

To turn automatic leveling off

To turn OFF the auto-leveling function (manual mode), press the Auto-Manual control pad
twice in quick succession. The manual mode indicator light will illuminate. The instrument
can be positioned in any direction, the laser beam remains on and the head will rotate.
IMPORTANT: In manual mode, the laser beam will not shut off if disturbed! To return to Auto­leveling mode, press Auto/Manual control pad once.

13

Operation

Scanning Mode

In scan mode, the laser rotates slowly, "searching" for the Magnetic Scanning Target. When
the target is properly placed in the beam path, the laser beam will scan rapidly back and forth
on the target and "track" the target as it is moved in its path.

1 To change to scanning mode when operating, press the Mode Control Pad.
2 To initiate target scanning, place the Magnetic Scanning Target in the beam path with the

reflective strips facing toward the laser.

3 To end target scanning and resume searching beam, remove target from beam path.

Vertical rotation

Horizontal rotation

Set scanning mode

Face the target toward the instrument to start scanning.

14

Laser Sensor Mode

For long range or outdoor applications, the instrument can be used with an optional elec­tronic laser sensor. The Topcon models LS-70B or LS-70A are recommended. Press the
Mode Control Pad to select Laser Sensor Mode. The beam rotates at 300 rpm in this setting.

Laser Pointing Mode (stop)

This mode stops rotation and allows the laser beam to be pointed
by manually rotating the head. Press the mode control pad to select
Laser Pointing Mode. Beam rotation stops in this mode.

Changing rotation speed
(only available in Laser Pointing Mode)

After selecting Laser Pointing mode, press either Speed Control
pad to change rotation speed. The right pad increases the rotation
speed. The left pad reduces the rotation speed.

Laser pointing

15

Height Alert function

When auto-leveling is active, this function prevents the instrument from operating if it is dis­turbed. This serves as a reminder to the user that to insure accurate control, the height of the
beam should be re-checked after the unit has been disturbed.

1 To activate the Height Alert function, depress and

hold the left Alignment control pad (see page 10) on
the control panel while turning on the instrument by
pressing the Power control pad. The three LEDs
(Lev eling, Manual, Battery) will flash at the same time

for three seconds.

2 When this function is active and the unit is disturbed,

three visible LEDs will rapidly flash.

3 To re-activate auto-leveling and check the beam height, turn the unit off, then on again by

pressing the Power control pad twice. After auto-leveling is complete, check the beam
height to confirm it has not changed.

4 The Height Alert function is now inactive. To re-activate, turn unit off and repeat step 1.

Battery LED

Leveling LED

Manual LED

16

Setting Slopes

The laser beam can be manually sloped in either the
X or Y axis (single slope) or both axes (compound
slope).Using the Slope Control pads (see page 10),
the beam can be electronically raised or lowered 5
degrees above or below the inclination of the instru­ment. This means that slopes up to 5 degrees can
be obtained if the instrument is set up on a level sur­face. For slopes greater than 5 degrees, the instru­ment must be manually positioned to within 5 degrees of the slope desired.

Horizontal

Inclination of the

instrument

X axis

Y axis

Single Axis

Dual Axes

Compound slope

17

How to set slopes

1 Turn the instrument on by pressing the Power control pad. Auto-leveling will start.
2 Press the X/Y Axis Selection control pad once after auto-leveling is complete (see page

10). The X axis lamp will flash. To change to Y axis, press the X/Y pad once again. Press­ing the X/Y pad toggles between X and Y axis selection.

3 Select Laser Pointing mode to stop beam rotation and manu-

ally align the beam over the X axis (see illustration on previ­ous page).

4 To move the laser beam up or down, press and hold the right

or left Alignment Control pad. The Manual mode lamp will
illuminate. The flashing X axis lamp will change to solid after
several seconds indicating slope has been entered in the X
axis.

5 To set a compound slope, repeat steps 2 to 4 for the Y axis.

To cancel slope settings

Press the Manual Mode pad. The instrument returns to auto­leveling mode.

Setting slope in Y axis

Raise or lower the laser beam by pressing the right or left Alignment Control pad.

Sample; Laser pointing mode

Move the beam up or down b y
pressing the right or left align­ment keys

18

Line Control (manual vertical beam alignment)

1 Position the instrument for vertical operation as

instructed on page 12.

2 Press the Power Control pad to turn unit on.

When auto-leveling is complete, the laser beam
will be emitted.

3 Select the Laser Pointing operating mode and

using the laser beam, position the unit so the
beam aperture is directly over point A and is
roughly in line with point B (see illustration).

4 Rotate the head so the beam is pointing toward

point B. Press either one of the Alignment Con­trol pads to move the beam right or left until it is
precisely aligned to point B.

5 Select the operating mode using the Mode Con-

trol pad best suited for your application.

Note

• While an alignment control pad is pressed the auto-leveling beam shut-off
will not operate.

• To aid in beam alignment, Vertical Alignment targets are available from Top­con.

19

Maintaining Power Sources

How to replace dry batteries

1 Remove the battery cover by turning the battery com-

partment lock to “OPEN”.

2 Remove the old batteries and replace with four (4)

new “D” cell alkaline batteries making sure each is
placed in the proper direction as indicated.

3 Replace the battery cover and turn the knob to “Lock”.

Note

• Replace all 4 batteries with new ones.

• Do not mix old batteries and new ones.

20

Checking and Adjusting

There are three areas of performance the user should check periodically.

Horizontal Calibration
Horizontal Rotation Cone
Vertical Calibration

The Horizontal Calibration and Vertical Calibration can be easily checked and, in most cases,
adjustments can be made by the user . Horizontal Rotation Cone can be checked b y the user,
if an error is found, adjustments must be made by a Topcon service facility.

Attaching the calibration decals

Before calibration, attach the calibration decals to the instrument as shown below. The cali­bration decal shows the calibration function of certain control pads on the control panel.

CALIBRATION

START-While presing

,press

X

CAL

-ON,Y

CAL

-

press ON

V

CAL

-ON

LASER BEAM CORRCTION

- or

ENTER-press

1

2

3

4

X/Y

CALIBRATION

START-While pressing ,press
X

CAL

-ON,Y

CAL

-

press ON

V

CAL

-ON

LASER BEAM CORRECTION

- or
ENTER-press

START

1

1

XV

Y

2

3

ENTER
ERROR

4

2

3

4

X/Y

X/Y

X

Y

V

Calibration Decals

21

Horizontal Calibration

(1)Checking Calibration

1 Set up a tripod 30m(98ft) from a wall. Mount the instru-

ment on the tripod, facing the X1 toward the wall.

2 Turn the unit on and allow auto-leveling to complete.
3 Place a piece of paper on the wall. Detect a laser posi-

tion on the wall with target and mark it. Turn the instru­ment off.

4 Loosen the tripod screw, rotate the instrument 180

degrees.

Note

• When rotating the instrument, avoid knocking it off level.

30m (98feet)

Target

Wall

Instrument as seen from above

Panel side

22

5 Turn the unit on again and allow auto-leveling to

complete.

6 Make a new mark (Mb) where the laser beam

strikes the paper.

7 Measure the distance between the first mark (Ma)

and the second mark (Mb). No calibration is neces­sary if distance is within 6mm (.23 inches).

8 Repeat procedure for the Y axis.

(2) Adjusting Calibration

If the distance between either set of marks is more than 6mm (.23 inches) but less than
25mm (1 inch), turn the unit off by pressing the [START] pad once and using the following
procedure. Confirm that unit has shut off before beginning the procedure.
(In steps 2 and 3, use of optional RC-30 remote control can be helpful. See page 34.)

30m (98feet)

X1 laser beam

X2 laser beam

If less than 6mm(.23 inches)
No calibration Necessary

23

1 While pressing the [ENTER] key, press the [START] key. This activates the X axis calibra-

tion mode. Confirm that the [X] LED is lit.

2 By pressing the right or left Alignment Control pad, move the X2 (Mb) laser beam up or

down until its centered between marks Ma and Mb.

3 When the beam is precisely centered, press the [ENTER] key. The [X] LED will flash.
4 When the flashing stops, the X axis calibration adjustment is made and power is turned

off.

For Y axis calibration, turn the unit as instructed in step 1 above then press the X/Y Axis
Selection pad. Confirm that the [Y] LED is lit, then repeat steps 2 to 4 for the Y axis.

Repeat the checking procedure to confirm proper calibration has been made.

Note

• If the calibration is greater than the adjustment allows, the error LED will
start flashing. If this occurs, contact your Topcon dealer.

START

1

XV

Y

2

3

ENTER
ERROR

4

X/Y

Laser beam
up or down

Center
position

24

Horizontal Rotation Cone Error

Perform the following check after completing "Horizontal Calibration" on the previous page.

1 Set up the laser centered between two walls approximately 30m (98 ft) apart. Orient the

instrument so one axis, either X or Y, is facing the walls.

2 Locate and mark the position of the rotating laser beam on both walls using the target.
3 Turn off the instrument and move the instrument closer to wall A (1m to 2m /3 ft to 6 ft).

Do not change the axis orientation of the instrument. Turn the instrument on.

4 Again locate and mark the position of the rotating laser beam on both walls using the tar-

get.

5 Measure the distance between the first and second marks on each wall.
6 If the difference between each set of marks is less than 3mm (1/8 of an inch), no error

exists.

Note

• If the error is grater than 3mm (1/8 of an inch), contact your Topcon dealer.

Cone error

Datum position

Wall

Wall

B

A

Wall

A

Wall

B

Minimum about 30m/98ft

25

Vertical Calibration

Perform the following check after completing "Horizontal Calibration" on the previous page.

(1)Checking

1 Set up the instrument half way between 2

walls a minimum of 40m aw ay from each
other. (The instrument can be facing
either direction X or Y. And no tripod is
used.)

2 Turn the power switch on.
3 Place a piece of paper on each wall (A and B).

Mark the horizontal laser positions (Ma and Mb) on each wall using target.

4 Turn the power switch off. Position the

instrument for vertical operation (see
instruction on page 12) with the rotary
side directly facing wall A (see illustra­tion). Make sure the unit is level b y chec k­ing the circular level vial. Use the leveling
screw to adjust if necessary.

5 Turn the power switch on. (Laser beam

should be in scanning mode.)

6 Mark where the split beam emitted from

the top of the rotary head strikes wall A
(Ha). Measure the distance (dHa)
between marks Ma and Ha.

about 20 m

(66ft)

about 20 m

(66ft)

Wall

A

Wall

B

about 40 m (130ft)

Wall

A

Wall

B

about 1m

Foot

26

7. Without moving the position of the front foot, pivot the instrument so the rotary head is

now facing wall B.

8 Mark where the split beam emitted from

the top of the rotary head strikes wall B
(Hb). Measure the distance (dHb)
between marks Mb and Hb.

9 Compare the two measurements dHa and

dHb. If the difference between the two
measurements is less than 4mm (5/32 of
an inch), no adjustment is necessary. Oth­erwise, adjust as follows.

about 1m

27

(2)Adjusting Calibration

Turn the unit off by pressing the [START] pad once. Confirm that unit has shut off before
beginning the following procedure.(In step 2 and 3, optional RC-30 remote control is helpful.)

1 Without moving the unit, press the [ENTER] and [START] keys simultaneously.
2 Press either the right or left key on the Alignment Control pad to move the laser beam up

or down on wall B until the measurement for the distance dHb is the same as the mea­surement dHa on wall A.

3 When the beam is positioned so the two measurements are the same, press the [ENTER]

key. The [V] LED will flash.

4 When the flashing stops, the vertical calibration adjustment is made and power is turned

off.

Repeat the checking procedure to confirm proper calibration has been made.

Note

• If the calibration is greater than the adjustment allows, the error LED will
start flashing. If this occurs, contact your Topcon dealer.

START

1

XV

Y

2

3

ENTER
ERROR

4

X/Y

Laser beam
up or down

28

Storage Precautions

Always clean the instrument after use.
Use a clean cloth, moistened with a neutral detergent or water. Never use an abrasive
cleaner, ether, thinner benzene, or other solvents.

Always make sure instrument is completely dr y before storing. Dry any moisture with a soft,
clean cloth.

29

Standard / Optional Accessories

Laser sensor holder model 5

160

158

156

154

152

150

138

136

134

132

130

128

126

159

157

155

153

151

139

137

135

133

131

129

127

125

131

Holder Model 5 allows the laser sensor to be moved up or do wn on
the staff by squeezing the spring-loaded clamp on its back side
without removing the sensor from the staff.

Laser sensor

Clamp knob

Laser sensor
holder model 5

30

Auto-cut off function (LS-70A and LS-70B)

The power will be turned off automatically if no laser beam is detected within approximately 30 minutes.
(To turn the sensor on again, press the power switch.)

Two on-grade precision
options are available,
normal precision and
high precision. By
pressing this switch, the
precision options are
switched alternately.
Active precision setting
is shown on the display.
(Normal precision is the
default setting when
power is turned on.)

On-grade
precision switch

Display

Audible (beeper)
Indicator switch

Beam receiving window

Power switch

Audio speaker

Display backlight

(Quite/Loud/OFF)

Audio indicator switch

(Quite/Loud/OFF)

Audio speaker

Beam receiving window

Power switch

LS-70A Laser Sensor

LS-70B Laser Sensor

On-grade Index

On-grade Index

Display

On-grade Index

31

Battery holder DB-49C
Rechargeable battery pack BT-49Q
AC/DC converter AD-9B/7C
For Charging

1 Plug the AC/DC converter ( AD-7C) into the

DB-49C battery holder.

2 Insert the converter receptacle in an outlet

(AD-7C is for AC230V)

3 Complete charging by unplugging the con-

verter connector from the DB-49C battery
holder after approximately 9 hours.

4 Unplug the converter receptacle from the out-

let.

The LED of DB-49C will indicate charging status;

Red ON : Charging.
Green ON : Charging completed.
Green flashing : DB-49C is not connected to BT-49Q.
Red flashing : BT-49Q protection feature is working automatically.

RL-VH3C can be used in this state.

Automatic protection feature; In case of overcharge or high or low temperature state exceeding
charging range, charging will be stopped or changed to protect battery.

Note

• DB-49C can be used with dry batteries instead of BT-49Q.

DB-49C

AC/DC converter
AD-7C

BT-49Q

DB-49C

32

Floor mount model-6B

Wall mount/dis­mount lever

(Only for when using
wall mount)

Leveling screw

Screw for tripod
W5/8

Floor Mount Model 6B must be installed on instrument in order to use Wall Mount Model 2C.

LOCK
UNLOCK

Wall mount model-2C

Wall mount hole

Mount position
control line

Clamp handle

Height adjustable
mounting platform

Wall mount hole

33

L

O

C

K

U

N

L

O

C

K



This is used to attach the instrument to wall molding or metal studs. Grip wall angle/mold­ing or screw to studs and tighten the attachment screw securely.

Wall mount hole

Mount position control line

Denotes elevation of closed clamp

Clamp handle

Height adjustable
mounting platform

Scale

Denotes beam height above or
below mount position control
line as mounting platform is
moved up or down.

Adjust screw

Adjusting the inclination of
wall mount unit.

Down

Up

Wall mount hole

Adjustment
range

Use the left side scale for RL-VH3C.

Fine movement knob

Provides fine height adjustment

Floor mount model-6B

Wall mount model-2C

34

Battery warning lamp

for RC-30

Transmission lamp

Laser Power Switch (Standby mode)

Pressing this switch for more than three seconds
puts laser in standby mode,
allowing the user to conserve battery power.
If laser remains in standby mode for 2 hours, laser
will turn off automatically.

Mode switch control

Slope mode /
X/Y axis selection

Press this key for more than three seconds to set
slope mode or select X or Y axis.

X/Y axis lamp

Alignment control

Speed control

Stop beam control
(RL-VH3G/A/B only)

Manual focus control
(RL-VH3G/A models only)

RC-30 Remote Control (for remote compatible units only, see page 8)

35

Description of RC-30 functions

Laser power
switch
(Standby mode)

Pressing for more than three seconds turns
laser standby mode on or off. Laser turns off
if standby mode continues for two hours.

Transmission
lamp

This lamp will indicates a signal is being transmitted by the RC-30.
It should illuminate any time a control pad is pressed.

Battery warning
lamp for RC-30

Battery warning for RC-30.
Replace the batteries with new ones.

Stop beam control

Sets Stop Beam mode and moves laser. (RL-VH3G/A/B models only)

Speed control

The rotation speed of the rotary head can be changed.

Alignment control

Moves beam up or down (horizontal rotation).
Moves beam right or left (vertical rotation).

X/Y axis lamp

Indicates axis selected during beam sloping operation.

Laser Power
switch
(Standby mode)

Turns laser standby mode on or off by pressing this key for more than
three seconds.
(The RL-VH3C will be turned off automatically if the standby mode is
continued for 2 hours)

Mode switch
control

Laser mode is switched alternately as follows.
Scan mode / Laser sensor mode / Laser pointing mode.

Manual focus
control

Laser beam can be focused manually.
(RL-VH3G/A models only)

X/Y axis selection

Sets slope mode by pressing for more than three seconds.
Select X or Y axis for manual grading.
To cancel the slope mode press this key for more than three seconds.

36

How to set remote control communication channel

The same channel must be set on the RL-VH3C and the RC-30 remote controller.

RL-VH3C

1 Remove the battery cover b y turning the

battery compartment lock to “OPEN”.

2 Turn the channel switch to set a channel

by using with a small straight screw­driver.

3 Replace the battery cover and turn the

knob to “Lock”.

RC-30

1 Remove the rubber cover from the chan-

nel switch on the back of the RC-30.

2 Turn the channel switch to the same

channel position set on the RL-VH3C.

3 Replace the rubber cover.

９

８
７

６

５

４

３

２

１

０

RC-30

RL-VH3C

Channel
switch

Channel
switch

37

Specifications

Accuracy

Horizontal : ±20"

Vertical : ±20"
Auto-leveling range : ±5°
Measuring range (Diameter) : 60m(197ft)
Using with LS-70A/70B : 200m(656ft)
Diameter of visible beam : 4.5mm
Rotation speeds : Changeable
Light source : L.D (Visible laser)
Power supply : 4D-CELL dry batteries
Continuous operating time : Approx. 40 hours (+20°C)
Tripod screw : Flat and dome head type, 5”/8 × 11threads
Operating temperature : -20°C to +50°C (-4°F to +122°F)
Dimensions : 182(L) × 167(W) × 229(H) mm [7.2(L) × 6.6(W) × 9.2(H) in]
Weight : 1.9 kg [4.2 lbs] (without dry batteries)

2.5 kg [5.5 lbs] (with dry batteries)

Remote controller RC-30

(Option for remote compatible
units only, see page 8)

Operating range
Power supply

::Maximum 100m (328 ft)

Three "AA" alkaline batteries, DC4.5V

38

TOPCON CORPORATION

75-1 Hasunuma-cho,Itabashi-ku,Tokyo,174-8580 Japan Phone:[phone] Fax:[phone] http:// www.topcon.co.jp

RL-VH3C(R) (E) 31324 90140 0006(1a)

TOPCON AMERICA CORPORATION

CORPORATE OFFICE

37 West Century Road, Paramus, New Jersey 07652, U.S.A.
Phone: [phone] Fax: [phone] www.Topcon.com

TOPCON CALIFORNIA

3380 Industrial BLVD, Suite 105, West Sacramento, CA 95691,
U.S.A.
Phone: [phone] Fax: [phone]

TOPCON MIDWEST

891 Busse Road, Elk Grove Village, IL 60007, U.S.A.
Phone: [phone] Fax: [phone]

TOPCON LASER SYSTEMS, INC.

5758 West Las Positas Blvd., Pleasanton, CA 94588, U.S.A.
Phone: [phone] Fax: [phone] www.topconlaser.com

TOPCON EUROPE B.V.

Esse Baan 11, 2908 LJ Capelle a/d IJssel, The Netherlands.
Phone: [phone] Fax: [phone] www.topconeurope.com

TOPCON BELGIUM

Preenakker 8, 1785 Merchtem, Belgium
Phone: [phone] Fax: [phone]

TOPCON DEUTSCHLAND G.m.b.H.

Halskestr. 7, 47877 Willich, Germany.
Phone: [phone] Fax: [phone] Telex: 8531981 TOPC D

TOPCON S.A.R.L.

89, rue de Paris 92585 Clichy, Cedex France.

Phone: [phone] (MEDICAL) 1-4106 9490 (TOPOGRAPHIE)
Fax: [phone]

TOPCON ESPAÑA S.A.

HEAD OFFICE

Frederic Mompou 5, 08960, Sant Just Desvern Barcelona, Spain.
Phone: [phone] Fax: [phone]

MADRID OFFICE

Avenida Ciudad de Barcelona 81, 1 Planta 28007, Madrid, Spain.
Phone: [phone] Fax: [phone]
Phone: [phone] Fax: [phone] Telex: 21414

TOPCON SCANDINAVIA A. B.

Industrivägen 4 P. O. Box 2140 43302 Sävedalen Sweden.
Phone: [phone] Fax: [phone] Telex: 21414

TOPCON (GREAT BRITAIN) LTD.

HEAD OFFICE
Topcon House Kennet Side, Bone Lane Newbury Berkshire RG14 5PX
U.K. Phone: [phone] Fax: [phone]

TOPCON SINGAPORE PTE. LTD.

Alexandra Distripark Block 4, #05-15, Pasir Panjang Road, Singapore
118491
Phone: [phone] Fax: [phone] E-mail: [e-mail]

TOPCON AUSTRALIA PTY. LTD.

408 Victoria Road, Gladesville, NSW 2111, Australia
Phone: [phone] Fax: [phone]

TOPCON INSTRUMENTS (THAILAND) CO., LTD.

77/162 Sinn Sathorn Tower, 37th Fl.,
Krungdhonburi Rd., Klonglonsai, Klongsarn, Bangkok 10600 Thailand.
Phone: [phone]~7 Fax: [phone]

TOPCON INSTRUMENTS (MALAYSIA) SDN. BHD.

Lot 226 Jalan Negara 2, Pusat Bandar Taman Melawati,
Taman Melawati, 53100, Kuala Lumpur, Malaysia.
Phone: [phone] Fax: [phone]

TOPCON KOREA CORPORATION

Hyobong Bldg., 1-1306, Seocho-Dong, Seocho-Gu, Seoul, Korea.
Phone: [phone] Fax: [phone]

TOPCON OPTICAL (H.K.) LIMITED

2/F., Meeco Industrial Bldg., No. 53-55 Au Pui Wan Street, Fo Tan Road,
Shatin, N.T., Hong Kong
Phone: [phone] Fax: [phone] E-mail: [e-mail]

TOPCON CORPORATION BEIJING OFFICE

Room No. 962 Poly Plaza Building, 14 Dongzhimen Nandajie,
Dongcheng District, Beijing, 100027, China
Phone: [phone]~2 Fax: [phone]

TOPCON CORPORATION BEIRUT OFFICE

P. O. BOX 70-1002 Antelias, BEIRUT-LEBANON.
Phone: [phone]-523526 Fax: [phone]

TOPCON CORPORATION DUBAI OFFICE

Offce No. 102,Khalaf Rashd AI Nayli Bldg., 245 Abu Hail Road, Dei­ra,Dubai,UAE
Phone: [phone] Fax: [phone]