Fiso Nortech E-TEST-II, Руководство пользователя

Страница: 25 / 32

21
Diagnostics values
The
Light
and
Signal
are the two diagnostics values that give an indication of the sensor health.
The “Light %”
is related to the strength of the light required to make an accurate reading on a sensor.
The lower the better, typically under 20%, in the best case under 10%.

For a sensor connected directly to the EasyTest II a light value up to 40% is a good value, if the
light is higher than that you should investigate; check for dirty connector, sharp bent along the
fiber, broken sensor or damaged sensor tip.

For a sensor connected with a patch cord and an EasyThrough to the EasyTest II, a light value up
to 80% is a good value, if the light is higher than that you should investigate; check for dirty
connector, sharp bent along the fiber, broken sensor or extension cable, damaged sensor tip.
The “Signal %”
is related to the signal to noise ratio of the optical signal returned by the sensor.
The higher the better, typically higher than 90%, in the best case higher than 95%.

For a sensor connected directly to the EasyTest II, a signal value higher than 80% is a good value,
if the signal is lower than that you should investigate; check for dirty connector, sharp bent along
the fiber, broken sensor or damaged sensor tip.

For a sensor connected with a patch cord and an EasyThrough to the EasyTest II, a signal value
higher than 40% is a good value, if the signal is lower than that you should investigate; check for
dirty connector, sharp bent along the fiber, broken sensor or extension cable, damaged sensor
tip.
Sensor connected directly
at EasyTest II port saver
Sensors with EasyThrough
and patch cord
Good value
Cleaning /
investigate
Good value
Cleaning /
investigate
Light
< 40% > 40% < 80% > 80%
Signal
> 80% < 80% > 40% < 40%
The Light and Signal values give an indication of the sensor health.
If they are in the yellow area, you should investigate, clean the connectors and check for sharp bend.