User manual

FieldMaxII-TO User Manual
32
The FieldMaxII-TO uses a boxcar averaging method,
with a boxcar length of 32 samples.
Pressing the Avg button toggles the state of Average
mode.
Atten
Attenuation mode allows you to get true measurements
using an attenuator that has a known attenuation factor.
When Attenuation Correction mode is enabled, the
measured value is adjusted to indicate the measurement
at the attenuator and not the sensor. The range for this
mode is 0.01 to 999.99.
Here’s an example of how to determine the attenuation
correction factor that needs to be set in the FieldMaxII-
TO meter: If a 1 W laser beam is focused through an
attenuator that has an attenuation factor of 50%, then, to
get a true laser measurement value, the correction factor
in the FieldMaxII-TO instrument needs to be set to 2. In
other words, since only half the power of the beam is
transmitted through the attenuator, the measured result
must be doubled to obtain a true laser measurement.
The Atten button is used to initiate several activities:
• Toggle the state of Attenuation Correction mode, if
the button is pressed for less than one second.
• Enter Edit mode and select the attenuation factor, if
Setup/Local is pressed beforehand.
• View the attenuation factor, if the button is pressed
for one second or more.