Unitech MS100 User Manual

MS100 Manual 51
Problems and Solutions
Problem: Scanner doesn’t light up.
If the scanner does not emit a light when plugged
in, check the interface.
If the scanner uses an RS232 interface, you will
very likely need a power supply (5V, 300mA).
Unplug the scanner and plug it back in.
Try the scanner on another port if possible.
Re-boot the computer.
If the scanner still doesn’t light up, try the scanner
on another computer to insure that the fault isn’t in
the original computer.
Problem: Scanner lights up but doesn’t beep.
If the scanner emits a light, but doesn’t beep when
scanning a bar code, try bar codes of different
symbologies. If other types of bar codes scan
properly, then it might be that the scanner is not
configured to scan your particular symbology.
If the scanner can scan other bar codes of the same
symbology, then other parameters (such as mini-
mum/maximum length, etc.) may have to be
adjusted.
Insure that your bar code has been created prop-
erly, with crisp edges and start/stop sentinels. For
instance, Code 39 bar codes require asterisk (*)
start/stop sentinels at the beginning and end of the
data string (*123ABC*).
Avoid glossy surfaces or glossy inks for your bar
codes. A glossy black surface may be indistin-
guishable from a white surface to your scanner. Try
photocopying your bar code and scanning the copy
to determine if glossiness may be a factor.

Unitech MS100 Specifications

General

Wavelength	660 nm
Sensor type	Photo diode
Tilt reading angle	45 - 90 °
Dimensions (WxDxH)	140 x 30 x 23 mm
Cable length	1.80 m
Standard interfaces	RS-232
Power consumption	800 mA
Power requirements	5V DC
Product color	Black, Blue
Housing material	Plastic
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 50 °C
Operating relative humidity (H-H)	20 - 85 %

Weight and Dimensions

Weight	76.5 g