Instruction manual

6. Troubleshooting
6-12
RF-20A/20Axs
NO PEAKS 1
Warning
Cause: Displayed if, on executing [S/N CHECK], no
raman spectrum peak was detected at an
emission wavelength of 397 nm ± 10 nm.
(Peak detection error 1)
Action: Execute the [S/N CHECK] again, and if the
same indication is displayed, refer to "S/N ratio
fault (weak signal)", "S/N ratio fault (too much
noise)", and "No raman peak of water is
observed." P.6-3 under "6.1 Troubleshooting
and Corrective Action".
NO PEAKS 2
Warning
Cause: Displayed if no raman spectrum peak can be
detected on executing [S/N CHECK].
(Peak detection error 2)
Action: Execute the [S/N CHECK] again, and if the
same indication is displayed, refer to "S/N ratio
fault (weak signal)", "S/N ratio fault (too much
noise)", and "No raman peak of water is
observed." P.6-3 under "6.1 Troubleshooting
and Corrective Action".
NO PEAKS 3
Warning
Cause: Displayed in the event of an error that doesn't
correspond to [NO PEAKS 1] or [NO PEAKS 2]
above.
(Peak detection error 3)
Action: Execute the [S/N CHECK] again, and if the
same indication is displayed, refer to "S/N ratio
fault (weak signal)", "S/N ratio fault (too much
noise)", and "No raman peak of water is
observed." P.6-3 under "6.1 Troubleshooting
and Corrective Action".
Error Message Type Cause and Action