Measurement Rate - Agilent Technologies Agilent 86120B User Manual

Using the Multi-Wavelength Meter
Changing the Units and Measurement Rate
4 Press WL and select one of the following units. Then, press RETURN to complete
your selection:
• NM for nanometers
• THZ for terahertz
• CM –1
for wave number
5 Press POWER and select one of the following units:
• DBM for decibels relative to a milliwatt
• MW for milliwatts
• UW for microwatts

Measurement rate

Under normal operation, the Agilent 86120B makes a measurement and dis-
plays the results about once every second. It is in this normal update mode
that maximum accuracy and wavelength resolution are achieved. However,
should a faster update be desired, for example when real-time feedback is
required to tune a laser to its designated channel, the Agilent 86120B can be
set to update approximately three times per second. This reduces both wave-
length resolution and accuracy but can be beneficial in some applications.
When FAST update is selected, one less digit of resolution is displayed. Also, if
multiple wavelengths are present, these individual responses, with the
reduced resolution, may no longer be recognized.
To change the measurement speed
1 Press the Setup key.
2 Press the MORE softkey.
3 Press the UPDATE softkey.
4 Select either NORMAL or FAST.
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