Doc.-ID: 200917-PT08BA-ES-ExCam IPP1275_en_rev.00.docx, Page 19 of 28
6.2.1
Opening the sensor unit housing (T07)
Opening the sensor unit`s housing is only permitted to change the focus. Afterwards, the
housing has to be closed explosion-proof again! The steps below have to be followed
very carefully.
Attention:
For opening the ExCam IPP1275s pressure-resistant stainless steel housing T07
VA0.1.K1.BOR, it is mandatory to follow the step-by-step instructions as stated in the T08
Ex installation manual!
Figure 6.1
– Opening the ExCam IPP1275 (Fig. similar)
Loosen the six M3 cylinder-head hexagon screws (DIN 912/ ISO 4762) together with their
spring rings (DIN 127A) on the rear side of the cable and power supply flange. Caution:
do not touch the screw threads with your skin or clothes! On the threads, there is LOC-
TITE® 243™ (chemical basis is dimethacrylate ester) applied to prevent the bolted con-
nection from unintentional loosening because of impacts and vibrations and to seal them
tightly. It is not permitted for the customer to open the front-side sight glass flange! There
is no need of such an action.
Carefully pull out the cable and supply flange to the rear, as straight as possible. Be-
cause of negative pressure, it may be difficult to remove the flange. The cylindrical clear-
ance fit (H8f7 - DIN ISO 286) of the camera body and flange may not be tilted! Risk of
damage to the flame-proof gap (DIN EN 60079-1:2012)!
Attention: The mounting adapter with camera modul and the optics are fixed on the cable
and supply flange. Dealing with these components, too, you have to work very carefully
and precisely in order to avoid canting and damage to the in-built components! Caution:
do not touch the cylindrical fit surface with your skin or clothes! On the surface, there is
oil lubricating paste to protect the surface against fretting corrosion and mechanical
stresses.
When you open the housing, pay attention that you do not damage the GYLON® flat seal
(blue, RAL5012) and do not make it dirty! The flat gasket is loosely attached to the cable
and power supply flange. It is fixed only by the bolted connections!
Pull out the camera carefully and pay attention not to clamp the cables.