Inficon 510-010, Technical Handbook

Page: 45 / 52

Maintenance
6-3
k
in
a
40
e 0
6
.f
m
te
chn
ica
l ha
nd
boo
k
(1
00
7)
6.2.2 Cleaning the Opening of the Calibrated Leak
In order to prevent the light barrier in the opening of the calibrated leak from being
interrupted by dirt, the opening should be blown out with clean compressed air
regularly.
6.2.3 Cleaning
The housing of the HLD5000 is made of plastic. Therefore to clean the housing use
cleaning only agents which are recommended to clean plastic surfaces (for example
mild household cleaning agents). Do not use any solvents which attack plastic
materials.
6.2.4 Replacing Fuses
The fuse holder ( Fig. 2-2 /8) of the HLD5000 is located below the mains socket on the
rear of the main unit. To replace the fuses proceed as follows:
1
Press down the pin in center and pull the fuse holder out.
2
Pull the fuses out and check these.
3
If required insert a new fuse. In any case two fuses of the same rating will have to be
inserted. The mains fuses required are slow-blow T 1 A (Ø 5 x 20 mm).
4
Insert the fuse holder once more and press it home until the securing pin engages.
After having replaced the fuses, reconnect the mains cord to the HLD5000 and
switch on the leak detector.
6.2.5 Replacing the Calibrated Leak
(not for SF
6
/ CO
2
version)
The calibrated leak should be replaced two to three months at the latest after the
message " Leak nearly empty. Please replace!” has been displayed. The calibrated
leak is replaced as follows:
1
Switch off the HLD5000 off and pull the mains plug.
2
Turn the main unit on its side to expose the base.
3
Turn the yellow plastic screw back completely.
4
Carefully remove the calibrated leak. Don’t damage the cable.
5
Pull off the plug (blue) from the calibrated leak’s printed circuit board.
6
Take a new calibrated leak and insert the plug into the socket.
Warning
To replace the fuses remove the mains cord first.