Bristol 428 - NuView Software Error Messages

Model 428 User’s Manual APPENDIX E – TROUBLESHOOTING
Bristol Instruments, Inc. 67
NuView Error Messages
The following table provides a list of error messages displayed by the NuView Display
Software and what they mean. If an error message is displayed, please call Bristol
Instruments for additional information and/or instructions.
Error Message
Description
Power Out of Bounds
The instrument has detected a power measurement
that is outside of the specified range of the instrument.
Laser Not Stable
This indicates that the internal HeNe reference laser of
the model A has not stabilized yet.
Temperature Out of
Bounds
This indicates that the instrument temperature is
outside of the allowed range of 0C to 50C for the
temperature sensor, or that there is a problem with the
sensor. Measurement will continue using the
temperature at the end of the allowed range closest to
the temperature sensor’s reading.
Pressure Out of Bounds
This indicates that the ambient pressure is outside of
the allowed range of 500 to 900 mm Hg, or that there is
a problem with the pressure sensor. Measurement will
continue using the pressure at the end of the allowed
range closest to the pressure sensor’s reading.
Wavelength Out of
Bounds
The instrument has detected a wavelength that is
outside the operating range of the instrument.
Reference Fringes Low
The instrument has detected that there are insufficient
reference fringes to perform an accurate measurement.
This may be due to either a failing reference laser, or
misalignment in the interferometer.