531374-1_A - 947 Man.qxd 2/15/2005 7:53 PM Page 26

TEMPERATURE PROBE ACCESSORY INSTALLATION

The Temperature Probe incorporates a temperature sensitive probe in a high- impact plastic housing. The module is intended for installation on the transom, and will work well on almost any boat.

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In addition to the parts supplied, you will need a hand drill with various bits, marine-grade silicone sealant, and a Phillips head screwdriver.

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3

1 Escutcheon Plate

4

2Cable Clamps

3Sensor Clamp

4Temp. Sensor

Install the temperature probe accessory:

1.Locate an area on the transom of your boat that will be 6” to 8” or farther from the transducer(s). This area must also maintain contact with the water, even at high speeds. Do not mount the sensor directly in front of the propeller or outdrive, and make sure that there are no protrusions such as ribs, rows of rivets, or transducers directly forward of the mounting location, as these may affect the flow of water over the temperature probe.

2.Align the sensor in the clamp, and align it on the transom so that the lower edge is flush with the hull of the boat, and mark the hole location.

3.On fiberglass hulls, it is best to start with a smaller drill bit and use progressively larger bits to reduce the chance of chipping or flaking the outer coating. Drill a 1/8” (3 mm) mounting hole approximately 3/4” (19 mm) deep.

4.Seal the mounting holes with marine-grade silicone sealant, and attach the sensor to the transom using the screw provided. Hand tighten only!

Routing the cable to the control head:

1.You may route the cable over the top of the transom, or drill a 5/8” (16 mm) diameter hole in the transom directly above the sensor and above the waterline to route cable through. Use the cable clamps provided to secure the cable to the transom of the boat. If you use a through-hole, then also use the included escutcheon plate to dress the hole.

NOTE: On fiberglass hulls, it is best to start with a smaller drill bit and use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.

2.All mounting screws not specified require a 9/64” (3.5 mm) pilot hole drilled approximately 5/8” (16 mm) deep. Additionally, seal any hole drilled in the transom of the boat with marine-grade silicone sealant (not included).

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Humminbird 947C manual Install the temperature probe accessory, Routing the cable to the control head