Getting Started 
Agilent Cary 630 FTIR Spectrometer User’s Guide  17 
 
Table 1.  Power switch LED status 
Status  LED color  Action (% duty cycle) 
System OFF  No LED illumination  N/A 
System OFF  Red  100% 
System startup  Red / green  Green 0.5 s on / red 0.5 s on 
System ON  Green   100% 
Firmware update  Red / green  Green blinks rapidly twice then red blinks 
rapidly twice 
Turning Off 
When you have finished using the spectrometer, press the green 
power button to turn off the system. The LED light will turn red. 
NOTE 
To help keep moisture out of the Cary 630 FTIR, it is recommended to leave the 
spectrometer on, even when not in use. 
 
CAUTION 
The power button is a momentary switch, to avoid accidental power off. In order 
to turn the system on or off, hold down the button for two (2) seconds. 
Performance Verification 
Your Cary 630 FTIR has been thoroughly tested at the factory, so no 
alignment steps are required. However, it is recommended to run the 
performance test initially to ensure the spectrometer is running 
properly. To run and interpret the performance test, refer to the 
Agilent MicroLab PC Software User’s Guide. The performance test 
measures the energy level of the spectrometer (based on the 
interferogram voltage or height). A successful test will be indicated by 
a green circle at the top of the software screen. You are then ready to 
analyze a sample. A yellow or red circle indicates the spectrometer is 
operating outside of the factory-defined parameters. These parameters 
are listed in Table 1 as well as on the Advanced Features software 
page.