Unitech MS350 User manual

1
Installation
The MS350 Wireless Imager is easy to install and use.
Please see the following figure showing the steps to perform
the installation.
* Note: Turn off the host computer before installation.
1. Connect the interface (I/F) cable to the cradle.
2. Connect the power cord to the cradle.
3. Route the I/F cable and power cord through the notch.
4. Connect the I/F cable to the host computer
communication port.
5. Connect the AC adapter to the wall outlet.
6. Place the imager in the cradle and verify the charge
LED is flashing. Charge the battery for at least 8 hours
before the first use.
7. To verify operation, please link the imager with cradle
first (Refer to “Wireless Connection” in page 5). Point
the imager at the barcode and pull the trigger. The
imager should emit a beep indicating that the barcode
has been scanned and transmitted to the cradle
successfully.

2
How To Scan
1. The imager must be pointed at slight angle to the
barcode so that the light reflected off the barcode can
be seen by the imager. Do not hold the imager
perpendicular to the barcode.
2. The scan line must cross the entire barcode. The
imager can not read the barcode data without seeing
the entire barcode.

3
Troubleshooting
If the imager can not operate properly, the following checks
should be performed:
1. The cradle uses an external power supply and the
external power supply has failed, the imager will not
operate. Change the power supply with a known good
power supply and reset the imager.
2. Verify the interface cable is securely connected to the
host computer. Consult your technical support
personnel or refer to your host system manual to verify
the proper connection for the imager.

4
3. Verify the interface cable is securely connected to the
cradle.
4. Check that the barcodes are of sufficient quality to be
recognized by the imager. Wrinkled, smudged, or torn
labels will cause the imager to not read at all. Scan a
known good label to check the imager’s read operation.
5. Ensure that the cradle’s interface type is compatible
with the host computer by consulting your host system
manual.

5
Wireless Connection
Linking the imager with the cradle
Follow these instructions to link the two devices:
1. Connect power to the cradle. The radio LED (marked
with a light symbol) will blink amber and the cradle will
beep.
2. To ensure the cradle is unlinked from any other imager,
check if the cradle send inquiry beep or not (see Inquiry
Beep Control in page 18).
3. Read the link label on the bottom of the cradle with the
imager. The imager will sound a good read beep and
the LED will flash amber.
4. Re-place the imager in the cradle to continue the
charge.
Once an imager is linked to a cradle, they will remain linked
until specific action is taken to unlink them (see Unlinking).
They will remain linked if the cradle is unplugged, if the
battery is removed from the imager or if the entire charge is
used up, and if the imager is taken out of range of the cradle.
Under normal operation, scanning of the link label will only be
required once in the life of the product.

6
Unlinking
There are three ways to unlink an imager from a cradle:
Force imager to disconnect and sleep
1. Scan the “Force imager to disconnect and sleep”
barcode – Reading the unlink barcode above while the
imager is in range of the cradle will break the link
between the two devices and allow another imager to
link to the cradle. It will also have the imager in Deep
Sleep Mode. If the barcode is read when the imager is
out of range of its linked cradle, the imager will unlink,
but the cradle will remain linked to the imager and will
not allow another imager to be linked to it. In this case,
you may perform the item 2 below to link another
imager.
2. Scan the Link Label and put on the original cradle –
If the cradle is linked with an imager and the original pair
was stopped by out of range of the cradle or out of
battery of the imager, scan the link label of the cradle
with a new imager and then put on the cradle, the cradle
will drop the original pair and establish a new link with
the new imager.
3. Scan the Link Label on an alternate cradle –
Scanning the link label on a cradle will drop the link
between the original pair and establish a link between
the imager and new cradle. If the new link is performed
within range of the old cradle, it is free to establish a link
to the next imager that reads its link label. If it is done
outside of the range of the old cradle, it retains its old
link and will not allow a new imager to link to it until a
new imager scan the link label and put on the cradle.
*$%-$ZZ%%*

7
4. Push the “Reset” button on the bottom of cradle – If
the cradle is linked with an imager and in range,
pushing the “Reset” button (for about 2 seconds) on the
bottom of cradle will drop the link between the devices.
If the button is pushed while the imager is out of range,
the cradle will unlink and make itself available to other
imagers. The scanner will not drop its link with the
cradle automatically, but can be linked to any other
cradle by reading its link label.
* Note: If just push the button with a short time (less than one
second), a “Paging” feature will be performed to page the
imager which was linked with the cradle.

8
Battery Charging
The imager contains a 1000mAh Lithium-Ion rechargeable
battery. A full charged battery will provide up to 15,000 scans
over a 12 hours period. Actual charge life on the imager will
depend on the configuration of how the imager is configured
via the programmable feature in this manual; in particular,
Deep Sleep Mode settings can impact battery life.
When the imager is placed in the cradle, the battery will
automatically charge. While charging is taking place, the
charging LED (marked with a battery symbol) will blink green.
When the battery is fully charged, the charging LED will stay
on a solid green.
If there is an error in charging either with a failure in the
charging circuit or with a failure of the battery, the charging
LED will flash red. When this happens, the battery needs to
be replaced.

9
How to Change the Battery
In case the contained battery inside the imager needs to be
replaced, please follow the procedures below:
1. Loosen the screw at the
bottom of the imager.
2. Take off the battery cover
out of the imager.
5. Use a new battery pack
and replace the used one.
3. Disconnect the battery
cable connector from the
main board.
4. Remove the used battery
from the battery container.

10
Note: DO NOT touch the PCBA inside the imager when
replacing the battery. Improper operation may damage the
imager.
6. Place the new battery into
the battery container.
7. Connect the battery cable
connector to the main board.
8. Put the battery cover back
to the imager handle.
9. Fasten the screw to the
imager.