YOKOGAWA DTSXL, User Manual, Page: 284 / 289

< PART – C Operation and Maintenance >
C-31
IM 39J06B40-01EN 14th Edition: May 30, 2022
Figure Connecting the Optical Fiber for DTSX (DTFB10)
If an optical switch is used with the DTSX3000, connect the optical fiber for DTSX
(DTFB10) to the output of the optical switch and check if distributed temperature
measurement is successful. If measurement succeeds, it means that the DTSX3000
and the optical switch are normal and the fault lies with the sensor optical fiber.
Figure Connecting the Optical Fiber for DTSX (DTFB10) to the Optical Switch
C4.5.1. Self-diagnosis
The DTSX3000 provides a self-diagnosis function for detecting hardware problems.
Some of the tests of self-diagnosis are automatically executed by the DTSX3000 at
system startup, while waiting for measurement and at the beginning of measurement. To
perform a full diagnosis of all test items, you need to execute the self-diagnosis function.
Not all problems can be detected and isolated by self-diagnosis. Moreover, installation
environment conditions (temperature, external disturbance, external noise, etc.) may
also result in false detection. If the same failure is frequently detected, contact your
Yokogawa sales representative or local distributor.
SEE ALSO
For details on self-test execution, see Section B11.2.1, “Self Diagnosis.”
Optical fiber for DTSX
(DTFB10)
Optical fiber for DTSX
(DTFB10)