Unitech MS836 User manual

Barcode Scanner
User Manual
MS836
V1.0

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Copyright
All right reserved by our company, reprint,copy or
sales of this manual are forbidden without our
company permission.
Responsibility Clause
We are not responsibility for errors,omissions and
variation without notice.

Chapter 1 System Setting
Enable/Disable Barcode Programming
Scanning the Enter Setup/Exit Setup barcode can
enable barcode programming. After barcode
programming is enabled, you can scan a number of
programming barcodes to configure your scanner.
Barcode programming is on by default.
In real application, programming barcodes hardly
o ve rl a p w i t nh o n - progr a mm i n g b a r c od e s , s o i t
is unnecessary to disable programming each
time you finishthe configuration.
Programming Barcode Data
W010F01
W010F00
*Enter Setup
Exit Setup

W060F06
W060F00
Transmit Programming
Barcode Data
*Do Not Transmit
Programming Barcode Data
Factory Defaults
Scanning the following barcode can restore
the scanner to the factory defaults.
You may need to reset your scanner when:
1. scanner is not properly configured so that it
fails to decode barcodes;
2. you forget previous configuration and want
to avoid its impact;
3. functions that are rarely used have been
enabled for the time being.
WFFD980
Restore All Factory
Defaults

Scan Mode
Manual Mode:A trigger pull activates a decode
session. The decode session continues until the
barcode is decoded or the trigger is released or the
decode session timeout expires.
*Manual Mode
W030000
Decode Session Timeout: This parameter sets the
maximum time decode session continues during a
scan attempt. It is programmable in 1s increments
from 1s to 255s. The default timeout is 15s. If the
parameter is set to 0, the decode session timeout is
infinite.
Decode Session Timeout
M00031D
Example: Set the decode session timeout to 5s
1. Scan the Enter Setup barcode.
2. Scan the Decode Session Timeout barcode.
3. S c a n t h e num e ri c b a r c od e “ 5 ”. ( S ee t h e D igi t
Barcodes section in Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Continuous Mode
Continuous Mode: A trigger press activates the
scanner to scan and decode at user-specified
intervals, i.e. the timeout between decodes. Each
decode session lasts until barcode is decoded or
the decode session timeout expires. To
suspend/resume the operation, simply press
the trigger. By default, the scanner rereads
same barcode with no delay.
Continuous Mode
W030002
Decode Session Timeout: This parameter sets the
maximum time decode session continues during a
scan attempt. It is programmable in 1s increments
from 1s to 255s. The default timeout is 15s. If the
parameter is set to 0, the decode session timeout is
infinite.
Decode Session Timeout
M00031D
Example: Set the decode session timeout to 5s
1. Scan the Enter Setup barcode.
2. Scan the Decode Session Timeout barcode.
3. S c a n t h e num e ri c b a r c od e “ 5 ”. ( S ee t h e D igi t
Barcodes section in Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Timeout between Decodes:This parameter sets
the timeout between decode sessions. When a
decode session ends, next session will not
happen until the timeout between decodes
expires. It is programmable in 0.1s increments
from 0.0s to 25.5s. The default timeout is 1.0s.
Timeout between Decodes
M00031C
Example: Set the timeout between decodes to 5s
1. Scan the Enter Setup barcode.
2. Scan the Timeout between Decodes barcode.
3. S c a n t h e num e ri c b a r c od e s “ 5 ” a n d “ 0 ”.
(SeetheDigitBarcodessectionin Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Reread Delay sets the time period before the
scanner can read the same barcode a second time.
It protects against accidental rereads of the
same barcode. This parameter is programmable
in 0.1s increments from 0.1s to 25.5s. The default
delay is 3.0s. If the parameter is set to 0, the delay
is infinite.
Note: This parameter only applies when the Reread
Same Barcode with a Delay is enabled.
Reread Delay
M00031E
W100A00
*Reread Same Barcode
with No Delay
W100A10
Reread Same Barcode
with a Delay
Example: Set the reread delay to 5s
1. Scan the Enter Setup barcode.
2. Scan the Reread Delay barcode.
3. S c a n t h e num e ri c b a r c od e s “ 5 ” a n d “ 0 ”.
(SeetheDigitBarcodessectionin Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Sense Mode
Sense Mode: The scanner activates a decode
session every time when it detects a change in
ambient illumination and meets the requirement of
the image stabilization timeout. Decode session
continues until barcode is decoded or the decode
session timeout expires. A trigger pull can also
activate a decode session. By default, the scanner
rereads same barcode with no delay.
Sense Mode
W030003
Decode Session Timeout: This parameter sets the
maximum time decode session continues during a scan
attempt. It is programmable in 1s increments from 1s to
255s. The default timeout is 15s. If the parameter is set to
0, the decode session timeout is infinite.
M00031D
Decode Session Timeout
Example: Set the decode session timeout to 5s
1. Scan the Enter Setup barcode.
2. Scan the Decode Session Timeout barcode.
3. S c a n t h e num e ri c b a r c od e “ 5 ”. ( S ee t h e D igi t
Barcodes section in Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Image Stabilization Timeout: The scanner
waits for the image stabilization timeout
to expire before activating a decode session
every time it detects a change in ambient
illumination. This parameter is programmable
in 0.1s increments from 0.0s to 25.5s. The
default timeout is 0.4s.
Image Stabilization
Timeout
M00031B
Example: Set the Image Stabilization Timeout to
5s
1. Scan the Enter Setup barcode.
2. Scan the Image Stabilization Timeout
barcode.
3. S c a n t h e num e ri c b a r c od e s “ 5 ” a n d “ 0 ”.
(SeetheDigitBarcodessectionin Appendix)
4. Scan the Save barcode. (See the
Save/Cancel Barcodes section in Appendix)
5. Scan the Exit Setup barcode.
Reread Delay sets the time period before the
scanner can read the same barcode a second time.
It protects against accidental rereads of the
same barcode. This parameter is programmable
in 0.1s increments from 0.1s to 25.5s. The default
delay is 3.0s. If the parameter is set to 0, the delay is
infinite.
Note: This parameter only applies when the
Reread Same Barcode with a Delay is enabled.
Reread Delay
M00031E

Reread Same Barcode with No Delay: The scanner is
allowed to reread same barcode, ignoring the
Reread Same Barcode with a Delay: The scanner is
not allowed to reread same barcode before the reread
delay expires.
To disable rereads of same barcode, enable the
Reread Same Barcode with a Delay and set the delay
to 0.
W100A00
*Reread Same Barcode
with No Delay
W100A10
Reread Same Barcode
with a Delay
Example: Set the reread delay to 5s
1. Scan the Enter Setup barcode.
2. Scan the Reread Delay barcode.
3. S c a n t h e num e ri c b a r c od e s “ 5 ” a n d “ 0 ”.
(SeetheDigitBarcodessectionin Appendix)
4. Scan the Save barcode. (See the Save/Cancel
Barcodes section in Appendix)
5. Scan the Exit Setup barcode.

Sensitivity: This parameter specifies the degree o f
a c u t e n e ss o f t h e s c a nn e r ’s r e s po n s e t o changes in
ambient illumination. The higher the sensitivity, the
lower requirement in illumination change to trigger
the scanner. You can select an appropriate degree
of sensitivity that fits the ambient environment.
High Sensitivity
WFF0305
WFF0310
WFF0330
M00031A
Medium Sensitivity
* Low Sensitivity
Custom Sensitivity
Sensitivity levels range from 0 to 255. The smaller
the number, the higher the sensitivity.

Command Trigger Mode
Command Trigger Mode: Decode session is
activated by a host command. The decode session
continues until the barcode is decoded or the decode
session time out expires.
Command Trigger Mode
W030001
Decode Session Timeout: This parameter sets the
maximum time decode session continues during a
scan attempt. It is programmable in 1s increments
from 1s to 255s. The default timeout is 15s. If the
parameter is set to 0, the decode session timeout is
infinite.
Decode Session Timeout
M00031D

Security Level
This parameter specifies the number of times to
decode a barcode during a scan attempt. The
higher the security level, the lower the error rate
and decoding efficiency.
W030A00
W030A01
W030A02
W030A03
Set Security Level to 0
Set Security Level to 1
Set Security Level to 2
Set Security Level to 3

Good Read Beep
W041200
W041204
Good Read Beep Off
*Good Read Beep On
Good Read Beep Frequency
WFF10DA
WFF104B
WFF1025
Low
*Medium
High

Good Read Beep Duration
WFF111F
WFF111E
WFF111D
Decode ResultNotification
40ms
*80ms
120ms
W203120
W203100
*Enable Decode Result
Notification
Disable Decode Result
Notification

Other Settings
You can change the following parameter settings
temporarily and the changes will be lost when you
power down or reboot the scanner.
Silent Mode On
W400000
*Silent Mode Off
W400040
Note: This feature is only applicable to decode beep
and will be automatically disabled when the
scanner is powered down or rebooted.
Illumination
Off
W0C0000
On When Scanning
W0C0004
Always On
W0C0008

Chapter 2 Communication Settings
Introduction
The scanner provides an RS-232 interface, a USB
interface and a PS/2 interface (hardware version: V2
or higher) to communicate with the host device. The
host device can receive scanned data and send
commands to control the scanner or to access/alter
the configuration information of the scanner via the
RS-232 or USB or PS/2 interface.
RS-232 Interface
Serial communication interface is usually used to
connect the scanner to a host device (like PC,
POS). When the scanner is connected to a host
device through its RS-232 interface, you need
to set communication parameters to match the
hostdevice.
Baud Rate
*9600
WFFD9D3
1200
WFFD9D0
2400
WFFD9D1

WFFD9D2
WFFD9D4
WFFD9D5
WFFD9D6
WFFD9D7
4800
14400
19200
38400
57600
WFFD9D8
115200