Airmar T80 User Manual

INSTALLATION INSTRUCTIONSOWNER’ S GUIDE &

Surface Mount, Analog

Temperature Sensor

Model T80

Follow the precautions below for optimal
product performance and to reduce the risk of
property damage, personal injury, and/or death.

17-584-01 rev. 01 05/28/14

WARNING: Always wear safety goggles and a dust
mask when installing.

WARNING: Below the waterline mount—When the
boat is placed in the water, immediately check for
leaks around the screws and any other holes drilled in
the hull.

CAUTION: Installation on a metal hull—The
stainless steel housing must be isolated from a metal
hull to prevent electrolytic corrosion. Use marine
sealant.

CAUTION: Never install a metal sensor on a vessel
with a positive ground system.

IMPORTANT: Read the instructions completely
before proceeding with the installation. These
instructions supersede any other instructions in your
instrument manual if they differ.

Record the information found on the cable tag for future reference.

Part No._________________Date___________

T80

Tools & Materials

Safety goggles
Dust mask
Pencil
Electric drill
Drill bit/hole saw/spade bit:

Pilot holes 3mm or 1/8"

Transom hole (some installations) 18mm or 3/4"
2 Stainless steel, self-tapping screws 4 x 18mm or #8 x 3/4"
Marine sealant (suitable for below waterline)
Screwdriver(s)
Cable clamp(s) (some installations)
Grommet(s) (some installations)
Cable ties

Installation

Mounting on the transom

CAUTION: Mount the sensor as close to the centerline (keel) of
the boat as possible to ensure the sensor remains in the water
when the boat is turning (see Figure1).

Applications

• Measures air or water temperature.

• Stainless steel sensor is compatible with all hull materials.
Recommended for aluminum hulls to prevent electrolytic
corrosion, provided the stainless steel sensor is isolated from
the metal hull by using marine sealant.

Mounting Location

The sensor can be mounted anywhere that you want to know the
temperature. For example, you can mount the sensor on the
transom, in the live well, or in the engine compartment.

If you are measuring water temperature, choose a location where
the sensor will be in contact with the water at all times.

CAUTION: Fiberglass hull—Minimize surface cracking by
running the drill in reverse until the gelcoat is penetrated.

CAUTION: If the sensor came with a connector, do not remove it
to ease cable routing. If the cable must be cut and spliced, use
Airmar’s splash-proof Junction Box No. 33-035 and follow the
instructions provided. Removing the waterproof connector or
cutting the cable, except when using a water-tight junction box,
will void the sensor warranty.

transom hole

sensor cable

T80 sensor

Figure 1. Mounting on the transom

Copyright © 2014 Airmar Technolog y Corp.

Mount the sensor near the centerline and close to the bottom of
the transom.

Route the sensor cable over the transom, through a drain hole, or
through a hole that you have drilled in the transom above the
waterline.

1. Place the sensor against the hull and mark the position of the

screw holes with a pencil.

2. Using a 3mm or 1/8" drill bit, drill pilot holes at the marked

locations, 10mm (3/8") deep.

3. Apply marine sealant to the threads of the purchased screws

to prevent water from seeping into the transom.

4. Screw the temperature sensor to the hull.

5. If a hole must be drilled through the transom, choose a

location well above the waterline. Check for obstructions
such as trim tabs, pumps, or wiring inside the hull. Mark the
location with a pencil. Drill a hole through the transom using
the appropriate size hole saw or spade bit (to accommodate
the connector). Do NOT remove the connector.

6. Route the cable over or through the transom.

7. On the outside of the hull, secure the cable against the

transom using a purchased cable clamp(s). Mark the position
of the screw hole(s) with a pencil.

8. Using a 3mm or 1/8" drill bit, drill a pilot hole(s) at the marked

locations, 10mm (3/8") deep.

9. Apply marine sealant to the threads of the screw(s) to prevent

water from seeping into the transom.

10.Fasten the cable clamp(s) in place.

11.If a hole has been drilled through the transom, apply marine

sealant to the space around the cable leading through the
transom.

Cable Routing & Connecting

1. Route the cable to the instrument, being careful not to tear the
cable jacket when passing it through the bulkhead(s) and other
parts of the boat. To reduce electrical interference, separate
the sensor cable from other electrical wiring and sources of
noise. Coil any excess cable and secure it in place with cable
ties to prevent damage.

2. Refer to the instrument owner’s manual to connect the sensor

to the instrument.

Replacement Sensor & Parts

The information needed to order a replacement sensor is printed
on the cable tag. Do not remove this tag. When ordering, specify
the part number and date. For convenient reference, record this
information at the top of page one.

Obtain parts from your instrument manufacturer or marine dealer.

Gemeco Tel: [phone]
(USA) Fax: [phone]

email: [e-mail]

Airmar EMEA Tel: [phone]
(Europe, Middle East, Africa) Fax: [phone]

email: [e-mail]

35 Meadowbrook Drive, Milford, New Hampshire 03055-4613, USA

•

www.airmar.com

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Copyright © 2014 Airmar Technology Corp. All rights reserved.