Endress+Hauser OXY5500 - Troubleshooting

OXY5500 Optical Oxygen Analyzer BA02195C
B
–18 Endress+Hauser
Performance Improvement
To improve the performance over past measurements, check the calibration
values by using the calibration test gases for “0” (UHP nitrogen 99.9999%) and
the Span test gas (100 ppm oxygen/N
2
). This can be completed by using a
3-way valve connected to the test gas enabling the user to switch back and
forth between bottles. This can assist in verifying proper operation.
Troubleshooting
Refer to Table B–3 for frequently asked questions related to troubleshooting
the OXY5500 before contacting the service department. To contact the service
department, refer to “Service” on page B-19.
Table B–3 Potential instrument problems and their solutions
Indication Suspected Cause Solution
No Sensor
detected!
Amplitude < 1000 Make sure that the SMA connector
is connected properly to the con-
nector.
Signal too low! Amplitude < 3000 Check sensor connections or POF
for any irregularities.
Refer to “Low signal strength:
High O2 on OP-3, OP-6 or OP-9
probe” on page B-16.
Signal Overflow! Refer to “High signal strength:
Low O2 or no O2 on OP-3, OP-
6 or OP-9 probe” on page B-16.
Critical Error 16! Reference signal exceeds
specified range
Refer to “Service” on page B-19.
No Pt100! Pt100 sensor has wrong
cable or is broken
Check temperature sensor con-
nection.
Critical Error
512!
Measurement system defect Refer to “Service” on page B-19.
SD Card Error! SD card cannot be read or it
cannot be written on
Refer to “Service” on page B-19.
Pressure Sensor
out of range!
Pressure sensor is either not
connected or provides a cur-
rent less than 4mA or higher
than 20mA
Check the pressure sensor and its
connection.
Flash Error! Writing on Flash was not
successful
Refer to “Service” on page B-19.