Sibata LB-6N2 User manual

CODE 080170-22
— Main Unit —
Thank you for purchasing this product.
•This operation manual describes precautions that are important for preventing accidents as
well as procedures used to handle the product.
•Read this operation manual and the attached warranty thoroughly before use, and use the
product correctly.
•After reading this operation manual and the warranty, keep them handy for future reference.
OPERATION MANUAL

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Table of Contents
Before Use .............................................................................5
About This Operation Manual ..................................................5
Product Contents .....................................................................5
Safety Precautions................................................................5
Users (Important) .....................................................................5
Graphical Symbols...................................................................6
Cautions for Use ......................................................................8
1Overview..........................................................................9
2Features...........................................................................9
3Names of Parts..............................................................10
4Connector Cable ...........................................................12
4.1 Connecting Connectors .................................................12
4.2 Disconnecting Connectors ............................................12
5Wearing the Instrument................................................13
5.1 Wearing the Control Unit ...............................................13
5.2 Wearing the Detector Unit .............................................13
6Power Supply................................................................14
6.1 Using the AC Power Supply ..........................................14
6.2 Using the Internal Nickel Metal-Hydride Batteries .........15
6.3 Backup Batteries ...........................................................15
7Startup Screen ..............................................................16
7.1 Main Menu Screens ......................................................17
8Measurement Procedure..............................................18
8.1 Operation Flow for Each Measurement.........................18
8.1.1 Countdown Timer Measurement ........................18
8.1.2 Manual Measurement.........................................19
8.1.3 Timed Measurement ..........................................19

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8.2 Data Logging .................................................................19
8.3 Preparation for Measurement........................................20
8.3.1 BG Measurement ...............................................20
8.3.2 When and How to Replace Filters ......................21
8.3.3 SPAN Measurement—Sensitivity Correction .....22
8.4 Starting and Stopping Measurements ...........................24
8.4.1 Countdown Timer Measurement ........................24
8.4.2 Manual Measurement.........................................25
8.4.3 Timed Measurement ..........................................25
8.5 Process After Measurement Is Finished (Cleaning Inside
Detector Unit) .............................................................27
9Basic Settings...............................................................28
9.1 Countdown Timer Measurement Settings .....................28
9.2 Manual Measurement Settings......................................29
9.3 Timed Measurement Settings .......................................30
9.3.1 Setting the Internal Clock ...................................30
9.3.2 Timed Measurement Settings ............................32
9.4 Data Logging Settings ...................................................33
9.4.1 Logging Modes...................................................33
9.4.2 Specifying Settings.............................................33
9.4.3 Setting the Logging Cycle Time .........................34
10 Function Settings .........................................................35
10.1 Memory Capacity and Deleting Data..........................35
10.1.1 Memory Capacity ..............................................35
10.1.2 Deleting Data ....................................................36
10.1.3 Memory Capacity and Memory Consumption ...37
10.2 Serial Output ..............................................................39
10.3 Entering the K Factor .................................................40
10.3.1 Conversion to Mass Concentration Values .......40
10.3.2 Determining the K Factor ..................................40
10.3.3 Entering the K Factor ........................................41
10.4 Buzzer Sound.............................................................41
10.5 Backlight.....................................................................42

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10.6 Alarm Settings (Concentration Alarm)........................43
10.7 Auto Start Settings .....................................................43
10.8 Open Collector Output................................................44
10.9 Auxiliary Function Settings .........................................45
10.10 Hour Meter Settings ...................................................47
10.11 Firmware Version .......................................................47
11 Communications...........................................................48
12 List of Display Terms ...................................................48
13 Optional Parts and Consumables ...............................50
13.1 Stand for Detector Unit...............................................50
13.2 Suction Pump Unit......................................................51
13.2.1 Constituent Parts ..............................................51
13.2.2 Tools Required..................................................51
13.2.3 Installing the Lower Parts of the Suction Pump
Unit ...................................................................52
13.2.4 Installing the Upper Parts of the Suction Pump
Unit ...................................................................53
14 Troubleshooting ...........................................................54
15 Specifications ...............................................................57
16 Precautions for Maintenance, Storage, and
Transport.......................................................................58
17 Preferred Procedures for Requesting Repairs to
Products Used in Environments Exposed to
Asbestos .......................................................................58
18 Product Disposal ..........................................................59
19 Warranty ........................................................................59
20 Disclaimers ...................................................................59

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Before Use
About This Operation Manual
•Information in this operation manual is subject to change without notice in the
interest of product improvement.
•Every effort has been made to ensure that the information contained in this
operation manual is correct. If you discover any errors or omissions, however,
please contact your Sibata representative.
•The copyright of this operation manual belongs to Sibata Scientific Technology
Ltd. This operation manual, or any part thereof, may not be reproduced, reprinted,
or altered in any form without prior written permission from Sibata Scientific
Technology Ltd.
Product Contents
Check the package for the following items before using the product.
Detector unit ······················· 1
Control unit ························· 1
Connector cable··················· 1
AC adapter ························· 1
Clip ··································· 3
USB cable (A-miniB Type) ···············1
Soft case (for holding the control unit)····1
Warranty ·································1
Combination standard scattering plate and zero filter (with filter ×1*, protective
cap ×1) ························································································1
* The filter is attached to the combination standard scattering plate and zero filter.
Operation manuals for main unit, communication software (Japanese,
English)················································································1 each
Quick reference manual (Japanese, English) ······································1
Manufacture's Inspection Result·······················································1
Communication software for the LD-6N/6N2 (CD-ROM) ························1
Check the contents of the package before use. If any parts are broken or missing, contact the distributor
where you purchased the product.
Safety Precautions
The precautionary information in this operation manual is provided to ensure the
safe use of the product and to prevent property damage and injury to you and other
people. It is all important for ensuring safety, so be sure to read it thoroughly before
using the product and observe it during use.
Users (Important)
This product should only be operated by trained and experienced operators that
understand the specialized technology and dangers involved. Untrained or
currently being trained operators should only operate the product under close
supervision by a person that is already trained or has sufficient specialized
experience. This operation manual is written assuming the product will be operated
by a person that understands the risks of operating the product.

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Graphical Symbols
The degree of danger involved in using the product without observing the indicated
precautionary information is indicated by one of two labels: WARNING or
CAUTION. Always observe the precautionary information indicated with these
labels, which is important for ensuring safety.
Labels Indicating Degrees of Damage or Injury
Indicates a potentially hazardous situation which, if not
avoided, will result in serious injury or death.
Indicates a potentially hazardous situation which, if not
avoided, may result in injury or equipment damage.
•This product is not explosion proof, so do not use it near combustible or flammable
materials. Doing so could cause explosion or fire.
•Do not burn the product in a fire. Doing so could cause explosion or fire.
•Only use the provided AC adapter for charging the internal batteries. Not doing so
could cause battery leakage, heat generation, or explosion.
•Do not leave the product inside cars in the hot sun, or store it in strong direct
sunlight, or in front of heating equipment. Doing so could cause explosion or fire.
•Do not use the product in an environment with corrosive gases. Doing so could
cause injury, electric shock, equipment damage, or fire.
•The normal operating temperature range of the product is 0 to 40 °C, with humidity
between 5 and 90 % RH (and no condensation). Do not use the product outside
this temperature and humidity range. Doing so could cause injury, electric shock,
equipment damage, or fire.
•Do not locate equipment that generates significant vibration near the product.
Doing so could cause injury, equipment damage, or an accident.
•Do not apply water or chemicals to the product. Doing so could cause injury,
electric shock, equipment damage, or fire.
•Do not put your fingers or foreign objects in the product. Doing so could cause
injury, electric shock, equipment damage, or fire.
•Do not install the product in locations with poor ventilations or subject to high
humidity or dust levels. Doing so could cause injury, electric shock, equipment
damage, or fire.

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•When finished using the product, be sure to turn OFF the power switch and
disconnect the AC adapter from the power outlet. Not doing so could cause fire or
a short circuit.
•Never attempt to connect to the connector using wire or other metal objects, or any
other method not specified in this manual. Doing so could cause explosion, fire, or
equipment damage.
•Do not touch or operate the product with wet hands. Doing so could cause
equipment damage.
•Do not place objects on the AC adapter cord. Doing so could cause fire, a short
circuit, or electric shock.
•Do not excessively bend or bundle the AC adapter cord, connector cable, or USB
cable. Doing so could cause fire or equipment damage.
•Do not modify or damage the AC adapter cord, connector cable, or USB cable.
Doing so could cause fire or equipment damage.
•If you notice smoke or an unusual smell, immediately turn OFF the power switch
and remove the AC adapter cord and the USB cable from the power outlet.
Continuing to use the product in an abnormal state may result in fire.
•Do not touch the AC adapter cord or USB cable with wet hands. Doing so could
cause electric shock or equipment damage.
•Before cleaning or inspecting the product, disconnect the AC adapter cord and
USB cable from the power outlet. Not doing so could cause electric shock or a
short circuit.
•Check the AC adapter cord, connector cable, and USB cable for cuts or other
damage to the cable jacket before operating the product. Using the cables in a
damaged state could cause fire or electric shock.
•If you hear the sound of thunder, do not approach the equipment, the AC adapter,
or the power outlet. Doing so could cause injury or electric shock.
•Always grip the AC adapter itself to unplug the AC adapter from the power outlet.
Not doing so could cause fire or electric shock.
•Remove the AC adapter from the power outlet when not using the product for long
periods. Not doing so could cause fire, a short circuit, or electric shock.
•Do not attempt to disassemble, repair, or modify the product by yourself. Doing so
could cause not only in equipment damage, but also electric shock or fire.
•Do not install the product in locations that are subject to strong magnetic fields.
Doing so could cause equipment damage or other problems.

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•Keep the product away from sources of noise. Not doing so could cause
equipment damage or other problems.
•Do not subject the product to vibrations or major shocks, such as dropping, impact,
etc. Doing so could cause equipment damage or other problems.
•Do not place any objects on top of the product. Doing so could cause equipment
damage or other problems.
•Do not allow dust or liquids to remain on the product. Wipe them off with a dry cloth
or other means. Not doing so could cause equipment damage or other problems.
Cautions for Use
•This product uses a laser. The semiconductor laser*1 used in this instrument is
dangerous to look directly at the laser light. In addition, to avoid skin damage, do
not point the laser directly at your body. Accordingly, never disassemble or modify
the interior of the detector unit.
*1 Laser safety regulations: IEC 60825-1 and JIS C 6802
•This product measures relative concentration levels. To determine the mass
concentration of dust, the mass concentration conversion factor (K factor) must be
determined first and then used to convert the measurement values.
After measurements are finished, converted mass concentration values can be
displayed on the LCD screen. For more information see 10.3 Entering the K
Factor.
•The specified upper measurement limit for the product is 100,000 cpm. This is the
upper limit for the relative concentration range used to determine instantaneously
high concentration levels and is not guaranteed for measuring continuously high
concentrations.
Measuring a series of high concentrations could reduce sensitivity, cause
instrument failure, or other problems due to contamination of the optical
components inside the detector or clogging of the fan motor.
•This product includes a data logging function that records measurement values in
internal memory. However, it is recommended that the recorded measurement
data be uploaded via the USB cable and saved on a computer as soon as possible.
Also, check the available memory capacity immediately before starting the next
measurement and, if necessary, delete data to provide adequate space in
memory.
•Please be aware that in the unlikely event of a product failure, Sibata bears no
responsibility to compensate for data not acquired or recorded, and is not
responsible for loss of data or for other direct or indirect damages incurred from
such loss. Be sure to back up data on a regular basis in case of an accident or
failure. It is recommended to perform operational checks prior to use as well as
periodic inspections.

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1 Overview
The LD-6N2 digital dust indicator is a portable relative dust concentration analyzer
that is capable of measuring the dust exposure to individuals. It is based on the
Sibata LD-6N, but is smaller and lighter.
Just like the LD-6N, it features separate detector and control units to facilitate being
worn by workers. However, the detector unit can also be fixed for measuring dust
concentration levels in work areas or for a wide variety of other measurement
applications.
2 Features
•Both the volume and weight have been reduced to about 75 % compared with the
previous model.
•The number of digits of the mass concentration conversion factor (K factor) has
been increased by one, so a more accurate conversion to mass concentration is
possible compared with the previous model.
•Measurement values can be confirmed in terms of either accumulated values
(COUNT) and instantaneous values (CPM) by switching between modes.
•The measurement range is from 0 to 100,000 cpm.
•Measurement values can be recorded in internal memory in the main unit.
•Recorded measurement values can be uploaded to a computer using dedicated
communications software and a USB cable.
•Connectors are provided on both the detector and control units to allow the
connector cable to be completely removed for easier storage.
•The system can be operated on AC power even while charging the batteries.
•When the optional items are used it is possible to collect PM4 and also carry out
real-time measurements.
The specified upper measurement limit is 100,000 cpm. This is the upper limit for the
relative concentration range used to determine instantaneously high concentration
levels and is not guaranteed for measuring continuously high concentrations.
Measuring a series of high concentrations could reduce sensitivity, cause instrument
failure, or other problems due to contamination of the optical components inside the
detector unit or clogging of the fan motor.

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3 Names of Parts
Detector Unit
Major Components
Detector unit
Connector cable
Control unit
Air sampling port
Connector for connector cable
Combination standard
scattering plate and zero filter
(referred to as both a standard
scattering plate and a zero filter in
the operation manual)
Protective cap
Fan uni
t
Bracket for wearing the unit
Output switch (black) and
SPAN switch (white)