EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 23)

Getting Started with Your Power Meters
Power Meters 15
Starting the Power Meters Application
IQS-1500
When you start the IQS-1500 Calibration Power Meter application, you will
notice a thermometer icon under the function tabs. This is the warmup
period indicator; it will remain on until the initial warmup time is over
(approximately 15 minutes).
If the external temperature fluctuates outside the normal operation
temperature, the thermometer icon will reappear until the temperature is
back within the required range (23
o
C ± 5
o
C).
You can still perform measurements while the icon is present, but EXFO
recommends postponing critical measurements until the warmup period
is over, as you might not benefit from the maximum stability and precision
your power meter can offer.
Data
display
Control
Center
Title bar
Function
tabs
Status bar
Warmup
period
indicator