Reason
Solution
Power supply is insufficient. The USH-9 requires
a certain inrush-current that the power supply is
not able to provide.
1. Use a power supply providing >0.5 A at 12
VDC or a fully charged battery.
2. In case of long sensor cables (>50 m) use a
24-VDC power supply.
NOTE
Please note that power sup-
plied by the USB-port is insuf-
ficient to power the USH-9!
The power supply voltage is out of range.
Adjust the power supply to match the specified
voltage range.
The port settings of the USH-9 and the data
acquisition system do not match.
Use the Commander
Communication assistan
t
or adapt port settings on your device.
NOTE
Sommer Messtechnik devices
require the following Baud rates:
● Sensor: 9600
● Data logger: 115200
● Modbus: 19200
In case of doubt use the function
Check por
t in the
Communication
assistant
.
The COM-port has not assigned correctly to the
USB converter.
1. Make sure to use a Sommer Messtechnik USB
converter. Third party converters are not sup-
ported.
2. Check the COM-port number using
Windows
Device Manager
.
3. Plug in the USB converter first, then start
Commander.
A sensor wire is not connected firmly to the ter-
minal of the data acquisition device.
Check the firm connection of the sensor wires.
A pin of the connector plug is bent or broken.
Verify that all connector pins are straight.
A
p
p
en
d
ix
B
T
ro
u
b
le
sh
o
o
ti
n
g
125
Manual
