Denso BHT-300QW User manual

The shape of the projected area marker differs according to the original target market.
This hand-held scanner with built-in area marker should not be used in the United States and
Canada as it does not meet the specifications required for use there.
!DENSO WAVE INCORPORATED does not assume any product liability arising out of, or in
connection with, the application or use of any product, circuit, or application described herein.
!If it is judged by DENSO WAVE INCORPORATED that malfunction of the product is due to the
product having been dropped or subjected to impact, repairs will be made at a reasonable charge
even within the warranty period.
!Intellectual Property Precaution
DENSO WAVE INCORPORATED ("DENSO WAVE") takes reasonable precautions to ensure its
products do not infringe upon any patent of other intellectual property rights of other(s), but DENSO
WAVE cannot be responsible for any patent or other intellectual property right infringement(s) or
violation(s) which arise from (i) the use of DENSO WAVE's product(s) in connection or in
combination with other component(s), product(s), data processing system(s) or equipment or
software not supplied from DENSOWAVE; (ii) the use of DENSO WAVE's products in a manner for
which the same were not intended nor designed; or (iii) any modification of DENSO WAVE's
products by other(s) than DENSO WAVE.
!Limited Warranty on Software Products
In no event will DENSOWAVE INCORPORATED be liable for direct, indirect, special, incidental, or
consequential damages (including imaginary profits or damages resulting from interruption of
operation or loss of business information) resulting from any defect in the software or its
documentation or resulting from inability to apply the software or its documentation.
Copyright © DENSO WAVE INCORPORATED, 2004
All rights reserved. No part of this publication may be reproduced in any form or by any means without
permission in writing from the publisher.
Microsoft Windows is a trademark of Microsoft Corporation. Other products and company names
mentioned in this manual are trademarks or registered trademarks of their respective holders.
Specifications are subject to change without prior notice.

Declaration of Conformity (For European Union)
The radio frequency module that complies with the Directive 99/5/EC(R&TTE) is mounted on this device
(BHT-300QW).
DECLARATION OF CONFORMITY
Directive 99/5/EC (R&TTE)
Manufacturer or
Authorized representative : DENSO WAVE INCORPORATED
Address : 1-1 Showa-cho, Kariya-shi, Aichi-ken, 448-8661, Japan
We declare on our sole responsibility, that the following product :
- Kind of equipment : Radio frequency module
- Type-designation : KCS
is compliance with the essential requirement of §3 of the R&TTE.
- Health and safety requirements pursuant to §3(1)a :
Applied Standard(s) or other means of providing conformity :
EN60950
- Protection requirements concerning EMC §3(1)b :
Applied Standard(s) or other means of providing conformity :
EN301 489-1 V1.4.1
EN301 489-17 V1.2.1
- Measures for the effective use of the Radio frequency spectrum §3(2) :
Applied Standard(s) or other means of providing conformity :
EN300 328-1 V1.3.1
EN300 328-2 V1.2.1
CE marking

Labeling
Rating plate

i
Preface
Please READ through this manual carefully. It will enable you to operate your BHT-300QW correctly.
After you have finished reading the instructions, keep this manual handy for speedy reference.

ii
How this book is organized
This manual is made up of five chapters and appendices.
Chapter 1 Quick Guide
Describes the basic operating method of the BHT-300QW and the related notes.
Chapter 2 Getting Started the BHT and System Mode
Outlines the system configuration and presents the operating procedures for the BHT-300QW, including
preparation and System Mode operation. In System Mode, you can set various parameters to efficiently
run application programs.
Chapter 3 Communications Operations of BHT
Outlines the BHT's communications capabilities necessary for performing data and program transfer
between the BHT-300QW and host computer or other devices: spread spectrum communication,
infrared (Ir) communication, RS-232C interface specifications, and the basic communications
specifications.
Chapter 4 Error Messages
Lists the error messages which will appear on the LCD if some error occurs in the BHT.
Chapter 5 Handling the CU-300 (Option)
Describes the handling procedure of the communication unit CU-300, the interfacing with the host
computer, and the charging of the battery cartridge. This chapter also describes the LAN-support
communication unit CU-311.
Appendix A: Specifications
Appendix B: ATypical Basic Operation

iii
!Technical Terms Used in This Manual
Source Program and Object Program (User Program)
Generally, a source program is translated into an object program by a compiler. This manual calls an
object program a user program.
BHT-BASIC
This manual expresses BHT-BASIC 4.0 as BHT-BASIC.
!Related Publications
BHT-BASIC Programmer's Manual (BHT-300 series)
BHT-BASIC 4.0 Transfer Utility User's Guide
!Screen Indication
The lettering in the screens in this manual is a little different from that in the actual screens. File names
used are only for description purpose, so they will not appear if you have not set files having those
names.

iv
SAFETY PRECAUTIONS
Be sure to observe all these safety precautions.
!Please READ through these instructions carefully. They will enable you to use the BHT and CU
correctly.
!Always keep this manual nearby for speedy reference.
Strict observance of these warnings and cautions is a MUSTfor preventing accidents that could result in
bodily injury and substantial property damage. Make sure you fully understand all definitions of these
terms and symbols given below before you proceed to the text itself.
Alerts you to those conditions which could cause serious bodily injury or
death if the instructions are not followed correctly.
Alerts you to those conditions which could cause minor bodily injury or
substantial property damage if the instructions are not followed correctly.
Meaning of Symbols
Atriangle ( ) with a picture inside alerts you to a warning of danger. Here you see the warning
for electrical shock.
A diagonal line through a circle ( ) alerts you to something you should not do; it may or ma
y
not have a picture inside. Here you see a screwdriver inside the circle, meaning that you
should not disassemble.
A black circle ( ) with a picture inside alerts you to something you MUST do. This example
shows that you MUST unplug the power cord.

v
To System Designers:
•When introducing BHTs in those systems that could affect human lives (e.g., medicines
management system), develop applications carefully through redundancy and safety design
which avoids the feasibility of affecting human lives even if a data error occurs.
Handling the battery cartridge
•Never disassemble or heat the battery cartridge, nor put it into fire or water; doing so could
cause battery-rupture or leakage of battery fluid, resulting in a fire or bodily injury.
•Do not carry or store the battery cartridge together with metallic ball-point pens, necklaces,
coins, hairpins, etc.
Doing so could short-circuit the terminal pins, causing the batteries to rupture or the battery
fluid to leak, resulting in a fire or bodily injury.
•Never put the battery cartridge into a microwave oven or high-pressure container.
Doing so could cause the batteries to break, generate heat, rupture or burn.
•Avoid dropping the battery cartridge or letting it undergo any shock or impact.
Doing so could cause the batteries to break, generate heat, rupture or burn.
•Only use the dedicated charger for charging the battery cartridge.
Using a different type of charger could cause battery-rupture or leakage of battery fluid and
result in a fire, bodily injury, or serious damage to property.
•Never charge the lithium-ion battery cartridge where any inflammable gases may be
emitted; doing so could cause fire.
Handling the BHT
•The BHT uses a laser light for indicating the scanning range. The intensity of the laser light
might be too low to inflict bodily injury. However, do not look into the laser beam.
The BHT complies with IEC 60825-1:1993+A2:2001.
In accordance with Clause 5, IEC 60825-1, the following information is provided to the user:
Caution - Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous laser light exposure.
LASER LIGHT
DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT

vi
•Never put the BHT into a microwave oven or high-pressure container.
Doing so could cause the BHT to break, generate heat, rupture or burn.
Handling the CU
•If smoke, abnormal odors or noises come from the CU, immediately unplug the AC adapter
from the wall socket, disconnect the interface cable, and contact your nearest dealer.
Failure to do so could cause fire or electrical shock.
•Never put the CU into a microwave oven or high-pressure container.
Doing so could cause the CU to break, generate heat, rupture or burn.
•If foreign material or water gets into the CU, immediately unplug the AC adapter from the
wall socket or CU, disconnect the interface cable, and contact your nearest dealer.
Failure to do so could cause fire or electrical shock.
•If you drop the CU so as to damage its housing, immediately unplug the AC adapter from the
wall socket or CU, disconnect the interface cable, and contact your nearest dealer.
Failure to do so could cause fire or electrical shock.
•Never use the CU for charging anything other than the specified battery cartridges.
Doing so could cause heat, battery-rupture, or fire.
•Never bring any metals into contact with the output terminals.
Doing so could produce a large current through the CU, resulting in heat or fire, as well as
damage to the CU.
•Use the dedicated AC adapter only.
Failure to do so could result in fire.
•Never use the CU on the line voltage other than the specified level.
Doing so could cause the CU to break or burn.
•If the power cord of the AC adapter is damaged (e.g., exposed or broken lead wires), stop
using it and contact your nearest dealer.
Failure to do so could result in a fire or electrical shock.

vii
Handling the battery cartridge
•Never charge a wet or damp rechargeable battery cartridge.
Doing so could cause the batteries to break, generate heat, rupture, or burn.
Handling the BHT
•Never put the BHT in places where there are excessively high temperatures, such as inside
closed-up automobiles, or in places exposed to direct sunlight.
Doing so could affect the housing or parts, resulting in a fire.
•Avoid using the BHT in extremely humid or dusty areas, or where there are drastic
temperature changes.
Moisture or dust will get into the BHT, resulting in malfunction, fire or electrical shock.
•Never disassemble or modify the BHT; doingso could result in an accident such as break or
fire. Never
disas-
semble
•If smoke, abnormal odors or noises come from the BHT, immediately turn off the power, pull
out the battery cartridge, and contact your nearest dealer.
Failure to do so could cause smoke or fire.
•If foreign material or water gets into the BHT, immediately turn off the power, pull out the
battery cartridge, and contact your nearest dealer.
Failure to do so could cause smoke or fire.
•If you drop the BHT so as to damage its housing, immediately turn off the power, pull out the
battery cartridge, and contact your nearest dealer.
Failure to do so could cause smoke or fire.
•Do not use batteries or power sources other than the specified ones; doing so could
generate heat or cause malfunction.
•In environments where static electricity can build into significant charges (e.g., if you wipe
off the plastic plate with a dry cloth), do not operate the BHT. Doing so will result in
malfunction or machine failure.
•When connecting or disconnecting the direct-connect interface cable to/from the BHT, do
not plug or unplug it at an angle and do not pull the cable strongly. Doing so will result in a
machine failure.
•If the BHT has been stored in a hot (50°C to 60°C, 122°F to 140°F) and humid place, allow
it to sit at room temperature and humidity for at least one day before use. Using the BHT
with its inside being hot will fail to scan or result in a machine failure.

viii
Handling the CU
•Never put the CU in places where there are excessively high temperatures, such as inside
closed-up automobiles, or in places exposed to direct sunlight.
Doing so could affect the housing or parts, resulting in a fire.
•Avoid using the CU in extremely humid or dusty areas, or where there are drastic
temperature changes.
Moisture or dust will get into the CU, resulting in malfunction, fire or electrical shock.
•Never disassemble or modify the CU; doing so could result in an accident such as fire or
malfunction.
•If you will not be using the CU for a long time, be sure to unplug the AC adapter from the wall
socket and disconnect the interface cable for safety.
Failure to do so could result in a fire.
•When caring for the CU, unplug the AC adapter from the wall socket and disconnect the
interface cable for safety.
Failure to do so could result in an electrical shock.
•Never cover or wrap up the CU or AC adapter in a cloth or blanket.
Doing so could cause the unit to heat up inside, deforming its housing, resulting in a fire.
Always use the CU and AC adapter in a well-ventilated area.
•Do not place the CU anyplace where it may be subjected to oily smoke or steam, e.g., near
a cooking range or humidifier.
Doing so could result in a fire or electrical shock.
•Keep the power cord away from any heating equipment.
Failure to do so could melt the sheathing, resulting in a fire or electrical shock.
•Do not insert or drop foreign materials such as metals or anything inflammable through the
openings or vents into the CU.
Doing so could result in a fire or electrical shock.

ix
!Proper Care of the BHT and CU
Clean the BHT's charge terminals and battery cartridge terminals with a cotton swab or the like
periodically. Clean the BHT housing with a dry, soft cloth. Before cleaning, be sure to turn the BHT off
and unplug the AC adapter of the CU.
•Never use benzene, alcohol, or other organic solvents. The
housing may be marred or the paint may come off.
•Never rub or strike the liquid crystal display (LCD) with anything
hard. The LCD surface will be easily scratched or broken.
•When cleaning the keypad, do not scrub the surface too hard.
Doing so may break the keys.
Thinner Benzine
•If the BHT or CU becomes smudged, moisten a soft cloth with neutral detergent and wring it out
thoroughly. Wipe the BHT or CU with the cloth and then go over it again with a dry cloth.
Dust or dirt accumulating on the clear plate of the reading window will affect reading performance. If you
use the BHT in dusty areas, therefore, periodically check the clear plate of the reading window and clean
it if dusty.
•To clean the plate, first blow the dust away with an airbrush. Then wipe the plate with a cotton swab or
the similar soft one gently.
•If sand or hard particles have accumulated, never rub the plate; doing so will scratch or damage it.
Blow the particles away with an airbrush or a soft brush.

Chapter 1 Quick Guide
Chapter 2 Getting Started the BHT and System Mode
Chapter 3 Communications Operations of BHT
Chapter 4 Error Messages
Chapter 5 Handling the CU-300 (Option)
Appendices

1
Chapter 1
Quick Guide
This chapter describes the basic operating method of the BHT-300QW and the related notes.
1.1 Reading 2D Codes and Bar Codes...........................................................................................................................2
1.2 Setting and Using the Hand Strap.............................................................................................................................3
1.3 Setting the Backlight.................................................................................................................................................4
1.4 Using the Keypad......................................................................................................................................................5
1.5 Transferring Data......................................................................................................................................................6

2
1.1 Reading 2D Codes and Bar Codes
Turn the BHT on, bring the reading window to a target 2D code or bar code to be scanned, and press the
trigger switch. The BHT turns the marker beam (laser) and illumination LED on to indicate the scanning
range and scan the target code, respectively.
When the BHT has read the code successfully, the indicator LED illuminates in green and the marker
beam goes off.
• If the BHT fails to read due to specular effects or other factors,
change the scanning angle of the reading window or the distance
from codes as shown at right, and try it again. (Specular effects
occur when the reflection of the light from the code becomes
excessively strong. This can easily happen when the reflecting
surface is polished or covered with vinyl.)
• The actual scanning range is narrower than the marker beam
range. The scanning range is 2.4" (6 cm) wide by 1.6" (4 cm) high
when the scanning distance is approx. 4.3" (11 cm).
• The code reading procedure may differ depending upon the
application used, so follow the application’s manual.
• Before reading labels, clean them if stained.
• Avoid using the BHT in direct sunlight. The BHT might fail to read correctly.
• To read 2D codes or bar codeson curved surfaces, apply the BHT to the target code so that the code
comes to the center of the scanning range indicated by the marker beam.
• Depending upon the code size or cell pitch, the proper scanning distance from codes differs.
• The marker beam range should only be used as a guide. It does not assure that a code within the
marker beam range can be read.
Power ke
y
Trigger switch (M4 key)*
Indicator LED
(Illuminates in green when the BHT has
read the code successfully.)
Trigger switch
(M3 key)*
*The trigger switch function is assigned to
both of the M3 and M4 keys by default.
Liquid crystal display (LCD)
Shows the scanned image of a code
lying inside the scanner's view if the
view finder is set to ON.
Scanning distance
Scanning
range
Code scanning
range indicated
by the marker
beam

Chapter 1 Quick Guide
3
1.2 Setting and Using the Hand Strap
!Setting the hand strap
!Using the hand strap
Put your hand through the hand strap and hold the BHT as shown below. This prevents you from
dropping the BHT accidentally.
Hand strap

4
1.3 Setting the Backlight
Pressing the M4 key (right-hand trigger switch) while holding down the SF (Shift) key activates or
deactivates the backlight function.
In user programs, you can select the key to be used for activating or deactivating the backlight
function (instead of the initial setting: combination of SF and M4 key (right-hand trigger switch)), as
well as modifying the ON-duration of the backlight before the automatic turning-off.
Backlight OFF
(The backlight function is
OFF when you turn the
BHT on.)
SF
Backlight OFF
(The backlight function
is kept ON.)
Backlight ON
Press M4 while
holding down SF.
If no key is
pressed for
approx. 3
seconds.
Press any key (except fo
r
the simultaneous
depression of SF and M4.)
M4
(right-hand trigger
switch)
Press M4 while
holding down SF.
Press M4 while
holding down SF.

Chapter 1 Quick Guide
5
1.4 Using the Keypad
!Entering Numerical Data
To enter numerical data, e.g., the quantity of goods, use the numerical keys and the ENT key.
For example, to enter the number "120," press the 1, 2and 0keys and then press the ENT key.
If you key in any wrong value, press the Ckey or BS key and then enter the correct one.
!Selecting Tasks
If the LCD shows the selection items (xxx) prefixed by numerals (e.g., 1: xxx, 2: xxx), use the numerical
keys to select a desired item and press the ENT key to execute. If a YES/NO screen (e.g., 1: YES, 2:
NO) appears, press the 1key for YES response and 2key for NO response.
!Entering Alphabetic Characters
The BHT supports the alphabet input function which allows you to enter alphabetic characters, space,
and symbols from the keypad during execution of a user program. For the alphabet input procedure,
refer to the "BHT-BASIC Programmer's Manual."

6
1.5 Transferring Data
!Using radio link
Using radio waves, the BHT can transfer data to an access point in a spread spectrum communications
system.
If there are too many communications errors, first make sure that the built-in antenna in the BHT
points directly at an access point because the 2.4-GHz band requires a more or less straight line path.
For data transfer using radio link, it is necessary to configure a wireless local area network (wireless
LAN) connecting the BHT and access points.
Host compute
r
A
ccess point
Built in antenna