Aalborg OSS-2 Optical - Manual (Page 10)

7
NO . INDICATION LIKELY REASON SOLUTION
1
No red LED light
on the top of the
Tyne-Eye retro
reflective sensors. Power supply off. Check connection of the
power supply.
Check cable or connection
from sensor to the Optical
Sensor Switch. Check cable or connection
from sensor to the Optical
Sensor Switch.
Wrong alignment of the
Tyne-Eye retro reflective
sensor. Perform alignment procedure
for corresponding Tyne-Eye
retro reflective sensor (see
p.6.2 for detailed instructions).
2
Buzzer or Relay
does not work. Wrong configuration of the
DIP switch. Make correct configuration of
the DIP switch according to
Figure 6.1.
Pc board defect. Return to factory for
replacement.
3
The retro
reflective sensor
does not react on
passing float
(the red LED does
not switch to Off). Wrong alignment of the retro
reflective sensor. Perform alignment procedure
for the corresponding retro
reflective sensor (see p.6.2 for
detailed instructions).
For best results it is recommended that instruments are returned to the factory for
servicing. See section 1.3 for return procedures.
7.2 Troubleshooting Guide
7.3 Technical Assistance
Aalborg
7 Instruments will provide technical assistance over the phone to qualified
repair personnel. Please call our Technical Assistance at 800-866-3837. Please
have your Serial Number and Model Number ready when you call.