ACR Electronics 9490, HRU-100, Y1-06-0209G SECTION 3 HOW TO DETERMINE HRU EXPIRATION DATE

Y1-06-0209G 6
SECTION 3 – HOW TO DETERMINE HRU EXPIRATION
DATE
The ACR HydroFix™ HRU is a replaceable part and, as such, has
dating associated with it. The HRU must be replaced tw o (2) years
from the install date or four (4) years from the date of manufacture,
whichever is less.
The HRU has a calendar on its top side; the calendar should be marked
with the expiration date at the time of installation, according to the
following instructions.
Date of Installation Example:
Date of installation of New HRU or
first installation of EPIRB including
new HRU: August 1, 2009.
This unit will need to be replaced in
August 2011.
Mark off “AUG 8” and “2011” on the
HRU date calendar
Date of Manufacture Example:
On the bottom of the HRU a date of
manufacture is pin stamped: 0808.
This unit will need to be replaced
in August 2012.
Mark off “AUG 8” and “2012” on the
HRU date calendar
Figure 2