Installation 
Cary 100/300/4000/5000/6000i/7000 Spectrophotometers User’s Guide  25 
CAUTION 
If you have a Cary 300 instrument, you MUST loosen the transit screw in the 
wavelength drive before turning on the instrument. Turning on the instrument 
without releasing this screw will damage the instrument. Use a flat-head 
screwdriver to loosen the transit screw approximately three turns. (The transit 
screw is located at the rear of the instrument, on the right side when viewed 
from the rear, and is clearly labeled). 
 
Switch on the spectrophotometer by depressing the side of the rocker 
switch marked ‘|’ on the front left side of the instrument. 
NOTE 
For optimum performance, allow your Cary instrument to warm up for 2 hours 
before use. 
Instrument performance tests 
The Cary WinUV software has a Validate application that you can use 
to carry out a number of performance tests which check for 
conformance to specification for a major subset of instrument 
parameters. Many applications are equipped with validation files 
that enable you to check that your software has been correctly 
installed. Refer to the Help for more information on validating your 
software. 
If any of the tests fail to meet the specifications, you will need to 
arrange for an Agilent representative to diagnose and correct the 
problem. 
Sample holders 
This section describes how to install the sample holders in your 
instrument. Unless otherwise stated, removal procedures are the 
reverse.  
Before the solid sample or single sample holders can be installed into 
the Cary 4000/5000/6000i/7000 instrument, they must be mounted 
onto the base plate. The base plate is then installed into the 
instrument using the LockDown mechanism (see Page 34).