KROHNE OPTIWAVE 7300C ATEX EN - Manual (Page 9)

INSTALLATION
2
9
OPTIWAVE 7300 C
www.krohne.com 06/2010 - 4000091504 - AD ATEX OPTIWAVE 7300 R06 en
2.1.3 Special conditions
2.1.4 Optional purging system
The purging system is supplied as an option for devices that have horn antennas.
Figure 2-2: Risk of ESD
1 Sun cover
2 Drop antenna
3 Flange plate protection (option for the Drop antenna)
WARNING!
Aluminium housing: Possible source of ignition in a potentially explosive atmosphere. The
housing is made of either aluminium alloy or stainless steel. If the device has an aluminium
alloy housing, make sure that iron/steel objects do not hit or rub against the device.
INFORMATION!
If the device is approved for operation in zone 2, the display agrees with the low-energy impact
test requirements for this certification.
Figure 2-3: Optional purging system
1 ¼ NPTF purging connection (optional)