background image

Charging

1

Remove the DB-79A battery holder by turning battery holder knob to "OPEN" side.

2

Connect the AD-17B/C/D/E into the charge port of the battery pack BT-79Q.

3

Plug the AD-17B/C/D/E into the wall outlet.
When charging starts, the LED is solid red. The LED is off when charging finished.

4

Unplug the AD-17B/C/D/E from the battery pack BT-79Q and disconnect the AD-
17B/C/D/E power plug from the wall outlet.

RL-H5A

RL-H5A

Note: In manual mode

• Self-leveling function is not active.
• Height alert function is not active.
• Setting slope function is not active.

On-Grade 
Index

LASER SAFETY INFORMATION

NOMENCLATURE AND FUNCTIONS

HOW TO STORE

LS-100D

After using the instrument, store it as shown below.

(LS-80A/80B/90)

PRECAUTIONS

POWER SOURCE

• If the instrument is dirty, carefully wipe it with a soft, dry cloth. To clean the instru-

ment or the carrying case, lightly moisten a soft cloth in a mild detergent solution. 

Wring out excess water until the cloth is slightly damp, then carefully wipe the sur-

face of the unit. Do not use any alkaline cleaning solutions, alcohol, or any other 

organic solvents on the instrument.

Exporting this product (Relating EAR)

This product is equipped with the parts/units, and contains software/technology, 
which are subject to the EAR (Export Administration Regulations). Depending on 
countries you wish to export or bring the product to, a US export license may be 
required. In such a case, it is your responsibility to obtain the license. The countries 
requiring the license as of Aug. 2017 are shown below. Please consult the Export 
Administration Regulations as they are subject to change.
  North Korea, Iran, Syria, Sudan, Cuba
URL for the EAR of the US: http://www.bis.doc.gov/policiesandregulations/ear/index.htm

EXCEPTIONS FROM RESPONSIBILITY

• The manufacturer, or its representatives, assumes no responsibility for any dam-

age, or loss of profits (change of data, loss of data, loss of profits, an interruption of 

business etc.) caused by use of the product or an unusable product.

• The manufacturer, or its representatives, assumes no responsibility for any dam-

age, or loss of profits caused by usage different to that explained in this manual.

• The manufacturer, or its representatives, assumes no responsibility for consequen-

tial damage, or loss of profits due to heavy rain, strong wind, high-temperature and 

humidity, or storing or use of the product under unusual conditions.

• Product failures caused by rebuilding are out of warranty.
• Cautions and warnings included in this manual do not cover all the possible events.

INSTRUCTION MANUAL

ROTATING LASER

Class 3R Laser Product

Thank you for selecting our products.

• Please read this Instruction manual carefully, when using 

this product.

• The specifications and general appearance of the instru-

ment, and the content of this manual are subject to change 

without notice.

• Some of the diagrams shown in this manual may be simpli-

fied for easier understanding.

• Always keep this manual in a convenient location and read 

it when necessary.

• Please read the Instruction manual of the paired instrument 

in conjunction with this manual.

RL-H5A

AD-17B/C/D/E

AA-size dry cell 
batteries

D-size dry cell 
batteries

(LS-B10/B10W)

Level Sensor Holder 
Model-110

Battery power lamp (Red)

Blinking:

The power is low, but laser is still usable. 
(Blinking continues for one minute.)

Solid:

Dead batteries. Replace the batteries with 
new ones. (The lamp is solid for five 
minutes, then turned off automatically.)

Manual mode ON key

ON: Push twice continuously.
OFF: Push once.

Height alert OFF key

OFF: Push twice continuously.
ON: Push once.

Height alert function (Refer to the 
description on the back page.)

Height alert OFF lamp (Red)

Height alert function is not active.

Manual mode ON lamp (Red)

Self-leveling does not function.

Self-leveling function

When the power is turned on, the laser beam is automatically 
positioned within the accuracy range by the self-leveling function.

Protective glass
Rotary head

Laser beam emits from here.

Handle

Battery holder

Battery holder knob

Power switch

Turn the instrument ON or OFF.

Power lamp/Self-leveling lamp (Green)

Blinking quickly : Self-leveling is in process.
Blinking slowly

: Self-leveling is almost complete.

Solid

: Self-leveling is complete.

Self-leveling function (Refer to the description below.)

Slope lamp (Green)

Aligning Direction of Slope
(Refer to thedescription on the back page.)

Slope key

Tilts beam plane in direction of arrow.
This key does not function during self-leveling 
and in the “Manual” mode.

Aligning Direction of Slope
(Refer to the description on the back page.)

Sight

Control panel

LS-80L

(Level Sensor)

Beam receiving window

Turn the beam receiving window side towards RL-
H5A to detect the laser beam.

Indicator

The indicators are located on front and back sides of 
the instrument.

LS-80L Indicator (Refer to the description on the
back page.)

On-Grade precision switch

Two on-grade precision options are available, 
normal precision (±2mm) and high precision (±1mm). 
By pressing this switch, the precision options are 
switched alternately. Confirm the precision choice by 
the indicator. (Normal precision is the default setting 
each time the sensor is turned on.)

Power switch

The power switch turns ON or OFF by pressing. 

Buzzer sound switch

Volume of the sensor buzzer can be alternately 
switched to LOW/LOUD/OFF by pressing the switch.

Buzzer speaker

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

RL-H5A (Using the dry cell batteries)

Replacing the dry cell batteries

1

Remove the DB-79A battery holder by turning battery holder knob to 
“OPEN” side.

2

Install the new 4xD size dry cell batteries (alkaline) referring to the 
illustration on the battery holder.*1), 2), 3)

3

Install the battery holder. Tighten the battery cover knob to “LOCK” 
side.

*1 Replace all 4 batteries with new ones at the same time. Do not mix 

used and new batteries, and do not mix different types of batteries 

together.

*2 Use alkaline dry cells.

Nickel hydrogen dry cells and nickel cadmium dry cells can be used 

too, but the operating time is different from the time of alkaline dry 

cells.

*3 Generally, performances of dry cell deteriorate temporarily in low 

temperature, but recover in normal temperature.

• It is possible to remove the dry cell batteries from the DB-79A battery 

holder and use the battery pack BT-79Q.

LS-80L 

Replacing the dry cell batteries

1

Keep pushing the battery cover in 1 direction, and then try to slide 
the cover in 2 direction.The cover does not move but it will be open.

2

Take out the batteries and place new ones (2xAA size

 

alkaline dry 

cell batteries) into the battery box.

3

Press the lid down and click to close.

RL-H5A (Using the rechargeable battery)

Be sure to charge the battery fully before using it for the first time or after not using it for long periods.

BT-79Q

DB-79A

• The charger will become rather hot during use. This is normal.
• Do not use batteries other than those designated.
• For longer battery life, conform to the suggested charging time to the extent possible.
• Be sure to charge stored battery source every 3 or 6 months and store in a place at 30°C or below. If you allow the battery to become completely 

discharged, it will have an effect on future charging.

• Batteries generate power using a chemical reaction and as a result have a limited lifetime. Even when in storage and not used for long periods, battery 

capacity deteriorates with the passage of time. This may result in the operating time of the battery shortening despite having been charged correctly.
In this event, a new battery is required.

DB-79A

Charging Battery

• Be sure to charge the battery within the charging temperature range.

 Charging temperature range: 10 to 40°C

• Use only the specified battery or the battery charger. Failures caused by 

using other batteries or battery chargers are out of warranty including the 

main unit.

Warranty policy for Battery

• Battery is an expendable item. The decline in retained capacity depending on 

the repeated charging/discharging cycle is out of warranty.

Other precautions

• Before starting work or during operation, check that the instrument is function-

ing correctly and performance is normal.

• Protect the instrument from heavy shocks or vibration.
• Remove batteries before storing when the instrument will not be used for peri-

ods on 1 month or more. Batteries may leak fluid when left inside the instru-

ment causing malfunction. 

Maintenance

• Always clean the instrument before returning it to the case.
• Wipe off moisture completely if the instrument gets wet during survey work.
• Store the instrument in a dry room where the temperature remains fairly con-

stant.

CAUTION

• Perform checks at start of work and periodic checks and adjust-

ments with the laser beam emitted under normal conditions. 

• When the instrument is not being used, turn off the power.
• When disposing of the instrument, destroy the battery connector 

so that the laser beam cannot be emitted.

• Avoid setting the instrument at heights at which the path of the 

laser may strike pedestrians or drivers at head height. Operate 

the instrument with due caution to avoid injuries that may be 

caused by the laser beam unintentionally striking a person in the 

eye.

• Only those who have received training as per the following items 

shall use this product.

• Read this manual for usage procedures for this product.
• Hazardous protection procedures (read "LASER SAFETY 

INFORMATION")

• Requisite protective gear (read "LASER SAFETY INFOR-

MATION")

• Accident reporting procedures (stipulate procedures before-

hand for transporting the injured and contacting physicians 

in case there are laser-induced injuries). 

• Persons working within the range of the laser beam are advised 

to wear eye protection which corresponds to the laser wavelength 

of the instrument being used.(OD2)

• Areas in which the laser is used should be posted with a standard 

laser warning sign.

The RL-H5A is classified as a Class 3R Laser Product according to IEC 
Standard Publication 60825-1 Ed.3.0: 2014 and United States Government 
Code of Federal Regulation FDA CDRH 21CFR Part1040.10 and 1040.11 
(Complies with FDA performance standards for laser products except for 
deviations pursuant to Laser Notice No.50, dated June 24, 2007.)

WARNING

• Use of controls or adjustments or performance of procedures other than those 

specified herein may result in hazardous radiation exposure.

• Never intentionally point the laser beam at another person. The laser beam is 

injurious to the eyes and skin. If an eye injury is caused by exposure to the laser 

beam, seek immediate medical attention from a licensed ophthalmologist.

• Do not look directly into the laser beam. Doing so could cause permanent eye 

damage.

• Do not stare at the laser beam. Doing so could cause permanent eye damage.
• Never look at the laser beam through a telescope, binoculars or other optical 

instruments. Doing so could cause permanent eye damage.

Beam aperture

• It is possible to remove the battery pack BT-79Q from the DB-79A 

battery holder and use the dry cell batteries.

Grasp the specified place on the battery holder, which is shown 

on the right, and remove the battery pack.

The LED of BT-79Q indicates the charging status:

Red ON

: Charging.

OFF

: Charging completed.

Red blinking slowly : Ni-MH BT-79Q battery pack protection feature is working automatically. 

Let the battery pack fall within its designated charging temperature range (10 to 40°C), unplug the AD-17B/C/D/E from 
the battery pack and then check the LED status. Solid red LED indicates charging has started again. Slow blinking red 
LED indicates the Ni-MH battery is still out of the charging temperature range. Wait for a while, unplug the AD-17B/C/D/E 
and then check the LED again.

The instrument has a protection feature which works when the batteries are under a high or low temperature state. In such a case, charging will 
stop automatically to protect nickel hydride batteries.

Red blinking quickly: The battery is not charged properly. Please contact your local dealer.

DB-79A

1020986-02-A

• LS-70 cannot be stored.
• For LS-100D and Holder Model-110, refer to the instruction manual of LS-

100D.

Level Sensor Holder 
Model-6

LS-80L

Installing

1

Insert the battery pack BT-79Q into the DB-79A battery holder.

2

Install the battery holder. Tighten the battery cover knob to “LOCK” side.

AD-17B/C/D/E

LED

BT-79Q

DB-79A

Plug

Reviews: