Copyright © 2011-2013 SM2M+ User Manual
15
by pressing the “back” button. Recorded sounds or vocalizations
can then be immediately verified on a computer. Once satisfied,
make sure the internal/external jumper is set to internal and the
unit is powered. Press the “wake/exit” button and watch for with
an announcement of scheduled recording time if in the future or
“preparing to record” if the schedule starts with record. The LED
light on the Song Meter board will also blink once a second during
a recording and once per minute when awaiting a scheduled
recording.
Drop a desiccant pack into the bottom of the housing before
installing top cap. Remaining desiccant should be kept in zip-lock
bags to prevent them from absorbing moisture.
Installing Top Cap
Before inserting the cap, rotate the cap in the reverse direction of
tightening four times. It takes eight turns to seal the cap, so this
will keep a maximum of four turns on the hydrophone cable.
Insert the cap and rotate by hand a couple turns to get it started.
When the first O-ring engages it will become more difficult. Insert
the included spanner wrenches into the interfacing holes. One
wrench interfaces with the two holes in the housing and the other
interfaces with the 4 holes in the top cap. It is easiest to do the
procedure while sitting atop the pipe (as though riding it). You can
hold the housing wrench stationary and rotate the top cap,
moving to a new hole as it is tightened. The wrenches are
identical. Apply force as shown below to tighten.
After six more turns it will get more difficult as the second O-ring
engages. Continue tightening until there is no gap between the
top cap and the cylinder as shown in below.
