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The measurement starts automatically. During the acquisition time, "RUN" and the
LED both blink for approximately 5 seconds. The bar graph indicates the head
temperature on an arbitrary scale.
measurements can be carried out before the sensor head needs to be cooled.
Approximately after 10 seconds the LED automatic shuts off. The FIT performs an
automatic Zero and the LED turns steady green. The LCD shows the last measured
power value . Return to Par.5 for a new measurement
allowable limit, the LCD displays the last measured power value.
Warning: sudden cool downs and subsequent strong temperature variations on
the head may cause a re-start of instrument and spurious measurements.
of stand by operation.
To retrieve the last recorded value, return to Paragraph 2. After the internal auto
check cycle, the display will show the last measured value.
To intentionally shut the instrument off, keep the ON/Zero button pushed until the
LCD shuts off (this takes approximately 4 seconds).
5-Measurement Cycle
Check the laser shutter is closed; align the probe to the
laser beam path and start the measurement cycle by opening
the laser shutter. Avoid taking measurements during laser
warm up or beam instabilities.
6-Measurement Display
As soon as the measurement is over the LED turns into
steady red. Remove the probe from the laser beam: the
display shows the actual power, and the remaining thermal
capacity. If the bar graph is below full scale, one or more
7-Cooling the Head
Should the probe reach its limit temperature, the LCD
shows " COOL" and the LED blinks red. Use
spontaneous or air forced cooling. Never use liquids!!
As soon as the temperature returns below its maximum
8-Auto Off /Battery Warning
When the battery pack is getting exhausted, its symbol
pops up on the LCD to warns that approx. 10 hours of
residual power remain. Note: to increase the battery life,
the instrument automatically switches off after 5 minutes
5
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