Care and maintenance
contrAA 600
Edition 01/2014
55
Graphite electrodes
Clean contact surfaces of the
electrodes with a cotton swab,
a clean cloth soaked in alco-
hol, or blotting paper.
Regularly
Check for wear, replace if
necessary.
Every six months
Pipetter insert
Clean and wash
May be necessary on a daily
basis, depending on the type of
samples
Autosampler AS-GF / AS-F and AS-FD
Dosing tube/
canulas
Check for freedom from de-
posits, kinks and cracks.
Check regularly since sediments
can falsify the measurement
results
Wash cup, mixing
cup
Clean
Regularly
Gas connectors
Check for leaks
When connections are newly
connected and when a clear
pressure loss is detected by the
manometer.
Mobile cooling unit for xenon lamp and graphite tube furnace
Stabilization vessel
Check the filling level in the
stabilization vessel. If neces-
sary, fill up with tap water.
monthly
Fans
(left side wall)
Keep clean
At all times
Table 6
Maintenance overview
7.2
Base device
7.2.1
Replacing the fuses
WARNING! ELECTRIC SHOCK!
Switch off the contrAA 600 and pull the mains plug from the 35 A connection before replac-
ing fuses!
The fuses of the contrAA 600 are on the back of the device, at the connection strip and the
sample chamber of the graphite tube furnace. They are marked.
Fuses on the rear (see Fig. 19)
Fuse number
Type
Protected circuit
F3
T 6.3 A/H
Power socket
F4
T 6.3 A/H
Power socket
F5
T 6.3 A/H
Spectrometer
F6
T 6.3 A/H
Spectrometer
Fuses at the connection strip (see Fig. 18)
