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Original instructions
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• 72303-001 / 72303-002 BHWA + Ultima Switch
Voltage Rating: 8.0 to 28.0 VDC.
Trigger-On Delay: 3 seconds after submersion.
Trigger-Off Delay: Immediately after removal.
Installation of detector:
Location:
1. Mount the detector on the bulkhead, stringer, inner transom or
hull of boat above the normal operating level of the automatic float
switch, but below critical components of the boat and or engine
such as the starter.
2. The detector can be mounted in any position but it’s preferred
to be mounted vertically with the mounting hole pointing towards
the bottom of the boat.
3. Avoid placing the two detector contacts closer than 7mm or 1/4”
from metals or other components as electrical noise or water
droplets can span the gap and falsely trigger the system.
Mounting:
1. If mounting to the hull of the boat use a mounting block of at least
a 3/4” thick marine plywood epoxied to the boats hull then fasten
detector directly to mounting block.
2. Align detector in desired mounting position then mark pilot holes
using detectors mounting hole.
3. Drill pilot hole avoiding drilling through boat hull by setting
appropriate depth of drill bit.
4. Mount detector using #8x5/8” long stainless steel screw.
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