Garmin | GTEMP10-TH Thru-hull Temp Sensor | Installation instructions | Garmin GTEMP10-TH Thru-hull Temp Sensor Installation Instructions

Garmin GTEMP10-TH Thru-hull Temp Sensor Installation Instructions
• If you have a question about the location of the thru-hull
sensor, you should contact your vessel builder or other
owners of similar vessels for advice.
GTEMP10-TH NMEA
2000 Thru-hull
Temperature Sensor
®
Installation Instructions
Important Safety Information
WARNING
See the Important Safety and Product Information guide in the
chartplotter or fishfinder product box for product warnings and
other important information.
CAUTION
Failure to install and maintain this equipment in accordance with
these instructions could result in damage or injury.
Always wear safety goggles, ear protection, and a dust mask
when drilling, cutting, or sanding.
NOTICE
When drilling or cutting, always check what is on the opposite
side of the surface.
This equipment should be installed by a qualified marine
installer.
To obtain the best performance and to avoid damage to your
boat, you must install the Garmin device according to these
instructions.
Read all installation instructions before proceeding with the
installation. If you experience difficulty during the installation,
contact Garmin Product Support.
®
Tools Needed
• Drill
• 25 mm (1 in.) hole saw
• 34 to 37 mm (11/3 to 11/2 in.) hole saw (cored-fiberglass hull
installations)
• Marine sealant
• Silicone grease
• Metal file (metal-hull installations)
• Fiberglass cloth and resin (option for sealing a coredfiberglass hull)
• 25 mm (1 in.) cylinder, wax, tape, and casting epoxy (option
for sealing a cored-fiberglass hull)
Installing the Thru-hull Temperature Sensor
Before you can mount the sensor in a cored-fiberglass hull, you
must prepare the hull (Preparing a Cored-Fiberglass Hull,
page 1).
1 From outside the boat, use a 25 mm (1 in.) hole saw to cut
through the hull at the mounting location.
2 Clean the area using a mild detergent or weak solvent, such
as isopropyl alcohol, to remove any dust and dirt.
3 From outside the boat, thread the cable through the hull, and
gently slide the threaded housing into place to check the fit.
NOTE: The housing should slip into place easily, with the
flange contacting the hull.
4 Remove the housing.
5 Apply marine sealant to the flange, reinsert the housing into
the drilled hole, and tighten the nut.
6 After the marine sealant has cured, remove the nut and apply
sealant to the inner side of the hull and the housing.
7 Tighten the nut by hand.
8 Allow the sealant to cure.
Preparing a Cored-Fiberglass Hull
NOTICE
If the core of a cored-fiberglass hull is not sealed properly, water
may seep into the core and severely damage the boat.
Registering Your Device
Help us better support you by completing our online registration
today.
• Go to my.garmin.com.
• Keep the original sales receipt, or a photocopy, in a safe
place.
Contacting Garmin Product Support
Fiberglass or casting epoxy (not included)
À
Á
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Cylinder spacer (not included)
Inner fiberglass skin
Core
Outer fiberglass skin
• Go to www.garmin.com/support for in-country support
information.
• In the USA, call 913-397-8200 or 1-800-800-1020.
• In the UK, call 0808 238 0000.
• In Europe, call +44 (0) 870 850 1241.
1 Drill the hole through the hull.
2 Seal the core inside the hull using either fiberglass (Sealing
Mounting Considerations
Drilling a Hole in a Cored-Fiberglass Hull
1 From inside the boat, drill a 3 mm (1/8 in.) pilot hole
completely through the hull.
the Core with Fiberglass, page 2) or casting epoxy
(Sealing the Core with Casting Epoxy, page 2).
• The sensor should not be mounted in a location where it
might be jarred when launching, hauling, or storing.
• The sensor must be mounted where the hull thickness is from
0 to 57 mm (from 0 to 21/4 in.).
April 2016
Printed in Taiwan
190-02057-02_0A
2 Examine the pilot hole on the outside of the boat, and select
3
4
5
6
an option:
• If the pilot hole is not in the correct location, seal the hole
with epoxy and repeat step 1.
• If the pilot hole is in the correct location, use a 25 mm (1
in.) hole saw to cut a hole from the outside of the boat
through the outer fiberglass skin only. Do not cut
completely through the hull.
On the inside of the boat, at the pilot hole location, use a hole
saw to cut a hole 9 to 12 mm (3/8 to 1/2 in.) larger than the
hole you cut in the outside of the boat in step 2.
Cut through the inner fiberglass skin and most of the core,
without cutting the outer skin.
NOTE: When cutting the inner fiberglass skin and core, be
careful to not cut the outer fiberglass skin, or you will not be
able to correctly seal the hull.
Remove the inner fiberglass skin and core you cut in step 3.
You should be able to see the inside of the outer fiberglass
skin.
Sand the inside of the hole and the areas immediately around
both the inside and outside fiberglass skin.
Clean the area using a mild detergent or weak solvent, such
as isopropyl alcohol, to remove any dust and dirt.
Sealing the Core with Fiberglass
1 From inside the boat, coat a layer of fiberglass cloth with
fiberglass resin and place it inside the hole to seal the core.
2 Add layers of fiberglass cloth and resin until the hole is
25 mm (1 in.) in diameter.
3 After the fiberglass has hardened, sand and clean inside and
around the hole.
The cored-fiberglass hull is now prepared, and you can
complete the sensor installation.
Sealing the Core with Casting Epoxy
Before you can seal the core with casting epoxy, you must
create a cylinder with a diameter of 25 mm (1 in.) to act as a
spacer as the epoxy sets.
1 Coat a 25 mm (1 in.) cylinder with wax.
2 From outside the boat, insert the cylinder into the hole, and
tape it in place on the outer surface.
3 Fill the space between the cylinder and the core with casting
epoxy.
After
the epoxy has hardened, remove the cylinder, then
4
sand and clean inside and around the hole.
The cored-fiberglass hull is prepared, and you can complete
the sensor installation.
NMEA 2000 Connection
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T-connector
Existing NMEA 2000 network
Thru-hull Temperature Sensor Configuration
For instructions on finding the NMEA 2000 device list, see your
compatible Garmin chartplotter or instrument manual.
Assigning a NMEA 2000 Temperature Source
1 From the NMEA 2000 device list, select the NMEA 2000 thru2
3
4
5
hull device.
Select a device.
If necessary, select Review or Config..
Select Temp. Source.
Select the location of the temperature sensor.
Configuring the Temperature Offset
When the temperature data displayed on the gauge connected
to your NMEA 2000 device is not the same as temperature data
displayed on other devices, you can configure the temperature
offset to compensate for the temperature reading from the
sensor connected to the gauge.
1 From the NMEA 2000 device list, select the NMEA 2000 thruhull device.
2 Select a device.
3 If necessary, select Review or Config..
4 Select Temp. Offset.
5 Enter a value, in degrees.
NOTE: Enter the temperature offset value as a positive
number when the sensor measures the water temperature as
being colder than it actually is. Enter the temperature offset
value as negative when the sensor measures the water
temperature as being warmer than it actually is.
6 Select Done.
Troubleshooting the Sensor Number
When multiple adapters are assigned to a NMEA 2000
temperature source, each adapter is assigned a unique sensor
number automatically. If an invalid NMEA 2000 temperature
configuration error message appears, you must assign a unique
sensor number to each adapter manually.
1 From the NMEA 2000 device list, select the NMEA 2000 thruhull device.
2 Select a device.
3 If necessary, select Review or Config..
4 Select Sensor Number.
5 Select a sensor number.
6 Select OK.
Configuring the Temperature Source when the
Location Is Not Displayed
1 From the NMEA 2000 device list, select the NMEA 2000 thru2
3
4
5
6
À
Á
Â
2
NMEA 2000 thru-hull temperature sensor
NMEA 2000 device
Drop cable
hull device.
Select a device.
If necessary, select Review or Config..
Select Generic Config..
Enter TEMPSOURCE=.
Enter a temperature source value based on the location of
the temperature data source, followed by Done.
For example, enter TEMPSOURCE=6Done for a temperature
data source placed in a bait well.
Temperature Location Source Values
Type
PGN
Location
TEMPSOURCE Value
Transmit
126464 Transmit PGN list group function
Water
0
Transmit
126993 Heartbeat
1
Transmit
126996 Product information
2
Transmit
126998 Configuration information
3
Transmit
130312 Temperature
Main cabin
4
Transmit
130316 Temperature, extended range
Live well
5
Bait well
6
Refrigeration
7
Heating system
8
Freezer
13
Exhaust
14
Air outside
Air inside
Engine room
Description
Garmin and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered
in the USA and other countries.
®
NMEA 2000 and the NMEA 2000 logo are registered trademarks of the National Marine
Electronics Association.
®
Configuring the Temperature Offset when the Menu
Option Is Not Displayed
When the temperature data displayed on the gauge connected
to your adapter is different from the temperature data displayed
on other devices, you can configure the temperature offset to
increase or decrease the displayed temperature.
1 From the NMEA 2000 device list, select the NMEA 2000 thruhull device.
2 Select a device.
3 If necessary, select Review or Config..
4 Select Generic Config. or Generic Configuration.
5 Enter TEMPOFFSET=, followed by a positive or negative
decimal number, followed by Done.
For example, enter TEMPOFFSET=-2.5Done to decrease the
displayed temperature by 2.5ºC.
Configuring the Sensor Number when the Menu
Option Is Not Displayed
1 From the NMEA 2000 device list, select the NMEA 2000 thruhull device.
Select a device.
If necessary, select Review or Config..
Select Generic Config. or Generic Configuration.
Enter INSTANCE=2, followed by a positive decimal number,
followed by Done.
6 Repeat steps 1 through 3 for other devices assigned to a
temperature source.
For example, when to adapters are assigned the value of
Live Well, assign INSTANCE=1 to the first adapter and
INSTANCE=2 to the second adapter.
2
3
4
5
Specifications
Hull thickness
Minimum 0 mm (0 in.)
Maximum 57 mm (2.25 in.)
Power input
From 9 to 32 Vdc
Power consumption
0.24 W (20 mA at 12V)
Operating temperature range
From -25 to 80ºC (from -13 to 176°F)
Cable length
1.8 m (6 ft.)
NMEA 2000 PGN
Type
PGN
Description
Transmit and receive 059392 ISO acknowledgment
Receive
059904 ISO request
Transmit and receive 060928 ISO address claim
Transmit and receive 065240 ISO commanded address
Transmit and receive 126208 NMEA : Command, request, and
acknowledge group function
®
3
© 2016 Garmin Ltd. or its subsidiaries
www.garmin.com/support
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