Table 13.9: Cannot get a reading
Problem
Cannot get a reading
Cause
Driver is not installed or the SQM-LU is not connected
Solution
For Windows, check that the unit is registered using the registry editor from the Start menu, select
Run, then type in
regedit
and press OK.
For Windows XP and Windows 2000, look here for your device
HKEY LOCAL MACHINE
\
SYSTEM
\
Enum
\
FTDIBUS
\
VID 0403+PID 6001+
Serial Number
\
0000
\
PortName
For Windows 98 and Windows ME, look here for your device
HKEY LOCAL MACHINE
\
SYSTEM
\
Enum
\
FTDIBUS
\
VID 0403+PID 6001+
Serial Number
\
0000
\
PortName
The
Serial Number
is printed on the bottom of the unit.
The above will identify which COM port the SQM-LU has been assigned.
If the SQM-LU is plugged in, the active COM port will show up in this list:
HK LOCAL MACHINE
\
HARDWARE
\
DEVICEMAP
\
SERIALCOMM
For Linux and Mac, use
lshal
to determine which device the FTDI driver has attached the SQM-
LU to. The CD contains a Perl script
findftdi.pl
to filter out the lshal output.
Unihedron SQM-LU Operator’s Manual -
20170728
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Summary of Contents for SQM-LU
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