Using Your GTA 
Agilent Graphite Tube Atomizer GTA 120 User’s Guide  33 
4  Keeping the power cord out of the way, lower the workhead onto 
the rollers, with the slots over the rollers. 
5  Ensuring the furnace is correctly installed; carefully pull the top 
of the workhead towards you. It should tilt about 30° then rest 
on the stops. 
6  Plug the furnace power cable plug into the socket located on the 
rear wall of the compartment exposed when the left panel was 
removed (see Figure 5). 
 
Figure 5. Power cable plugged into connector on the 280Z AA 
 
NOTE 
Rotate the plug to match the pins in the socket and then push the plug in. Screw 
the collar up finger tight until it locks into position. 
 
CAUTION 
Ensure the plug is securely in place. A loose plug will lead to arcing between the 
pins of the plug and damage to the electrical system of the instrument. 
 
7  Refit the left hand panel. 
8  Align the HC lamps. Refer to the SpectrAA Help for instructions. 
9  Carefully tilt the workhead back into the sample compartment. 
10  Align the vertical furnace position.