mcmurdo E3 Owner's Manual page 15

OBSTRUCTION FREE AREA
7.3 Mounting instruction plate
The E3 is supplied with a rigid plate giving visual instructions on how to operate the
E3 in an emergency. Mount this next to your EPIRB as explained in section 6.3.
7.4 Marking HRU expiry
If you are installing a float-free E3 you must now mark the HRU expiry date. The
HRU has a 2 year in-service life which starts as soon as it gets exposure to a
marine environment. Hence the 2 years starts at installation and it is left to the
customer to mark this date during installation. A date 2 years into the future should
be marked on the HRU body and copied onto the label on the side of the enclosure.
The HRU is marked by cutting out the corresponding dates on its label. The
enclosure should be marked using the alpha-numeric stickers provided, then
covering them with the clear sticky label provided (but see 7.5 first). The preferred
date format is month and year, for example : JUN 2001.
0.8m x 0.5m (32" x 20")
44mm
(1.73")
84mm (3.3")
150mm
(5.9")
150mm
(5.9")
440mm
(17.3")
104mm
(4.1")
13
140mm
(5.5")