139
Thermo Fisher Scientific
Operation Manual HM550
e fluorescent lamp L8/12 of the cryostat is integrated in the grip (fig.
135.1) of the heated sliding window.
• Before exchanging the lamp, turn off the mains switch and unplug
the instrument.
• Open the sliding window halfway.
• Turn the two red knurled screws (fig. 135.2) which are placed on
the right and left lower side of the sliding window in a counter-
clockwise direction and remove them.
• Remove the grip (fig. 135.1) from the upper side of the sliding win-
dow.
• Turn the lamp by 90° forwards or backwards and remove it from the
sockets (fig. 135.4).
• Insert the new lamp from above into the socket and turn it by 90°.
Note:
Only use the lamp type L8/12, cat. no. 346190, which was installed in the
factory.
Note:
Whenever exchanging the fluorescent lamp, please also exchange the starter
S10 Philips (cat. no. 322710).
Changing the
fluorescent lamp
Figure 135.
Changing the fluorescent lamp.
Maintenance and care of the cryostat
Changing the fluorescent lamp
