11 Maintenance
D52IB001EN-G
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11 Maintenance
11.1 Routine Maintenance
Always keep the chamber closed, otherwise the
vacuum sealing in the housing, the heating/cooling
block or the Pt100 thermo sensor can be damaged.
To guarantee trouble-free and reliable operation,
follow the instructions below:
• Remove the protective cap of the vacuum feed
through only shortly before fitting the appropri-
ate connector.
• Periodically clean the chamber to remove resid-
ual sample material.
• Periodically check the cooling-water circuit.
• Periodically check the Pt100 temperature sen-
sor for proper functioning. If required, validate
the temperature with an appropriate standard.
• Periodically check the floater of the Liquid Nitro-
gen Evaporation Box for mobility by gently shak-
ing the box and listening for the noise of the
floater.
• Make sure that the O-ring of the housing (the
seal between the housing and the lid) is always
slightly coated with vacuum grease.
Periodically clean the O-Rings, the groove and
the sealing surface with alcohol.
11.2 Check the Functioning of the Flow
Controller
• Check the proper functioning of the flow control-
ler once a week as described in chapter 5.5.
11.3 Exchanging of Parts
11.3.1 Switching off the Instrument
1. Switch off the CCU 100 by using the power
switch on the front side of the instrument.
2. Unplug all cables from the rear side of the
instrument.
Perform the recommended maintenance work regu-
larly to ensure the smooth long-term operation of the
instrument.
11.3.2 Exchanging the Graphite Foil
The graphite foil between the sample holder and the
heating/cooling block ensures good heat transfer
from the heater to the sample holder. Therefore it is
essential to regularly check the condition of the
graphite foil. It is recommended to exchange the
graphite foil after several exchanges of the sample
holder or if visible scratches can be seen on the foil.
In order to exchange the graphite foil proceed as
follows:
1. Remove the sample holder.
2. Remove connected cooling equipment from the
instrument.
3. Demount the heating/cooling block of the instru-
ment from the housing by unscrewing the
knurled screws as shown in the following pic-
ture. Take care to hold the heating block while
unscrewing the last screw. (Should the knurled
screws at the bottom be stuck, use the supplied
Torx 10 to loosen them.)
NOTICE
Risk of damage.
After long-term operation, we recommend clean-
ing both the O-ring and the groove using a lint-
free paper towel wetted with a suitable solvent,
e.g. alcohol. After this, slightly cover the O-ring
with vacuum grease (contained in the accessory
box).
NOTICE
Risk of damage.
Do not operate the TTK 600 chamber if the
water flow controller does not work properly.
WARNING
CCU 100 contains electrical components which
may carry dangerous voltage. Always switch off
the CCU 100 and disconnect it from mains
before you open the housing.
Do not operate the CCU 100 when the housing
is open.
Summary of Contents for TTK 600
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Page 74: ...Appendix B Sample Chamber Dimensions 74 D52IB001EN G Appendix B Sample Chamber Dimensions ...
Page 75: ...Appendix C Declaration of Conformity D52IB001EN G 75 Appendix C Declaration of Conformity ...
Page 77: ...Appendix D Spare Parts and Accessories D52IB001EN G 77 176383 COOLING MODE SWITCHING VALVE ...
