Lowrance LST-3800 Installation and Operation Manual
Lowrance LST-3800 Manual
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- Lowrance LST-3800 | Installation and Operation Manual - Page 1
Pub. 988-0064-351 LST-3800 In-Dash Digital Sonar Gauge Installation & Operation Instructions The LST-3800 is a depth and temperature gauge that comes with a 200 kHz transducer, features deep and shallow alarms and has three main page displays. It can show depth in Meters or Feet, temperature in - Lowrance LST-3800 | Installation and Operation Manual - Page 2
Gasket 4-1/8" (105 mm) 2-1/2" (64 mm) Cables Threaded mounting collar Dash installation, cross-section view. Caution: You should read over the entire installation section before drilling any holes in your vessel! You can install this gauge in some other order if you prefer, but we recommend - Lowrance LST-3800 | Installation and Operation Manual - Page 3
back of the dash, then screw on the mounting collar, turning it until it fits snugly against the gasket and the back of the dash. Find a back of the gauge. Finish the installation by connecting the cables as described in the following wiring diagrams and photos. Wiring The LST-3800 operates from 10 - Lowrance LST-3800 | Installation and Operation Manual - Page 4
black wire to buzzer black wire Buzzer red wire to boat power Buzzer Power/transducer cable Transducer Red to dash light switch Black wire Red wire and fuse 12 volt battery LST-3800 cable connections. In the configuration above, the unit is always on. It will draw 11 milliamps of current with - Lowrance LST-3800 | Installation and Operation Manual - Page 5
. NOTE The LST-3800 comes with a 200 kHz transducer. For installation instructions, download Installation Instructions for Skimmer Transducers from the Lowrance web site, www.lowrance.com. part number, 988-0147-582, at www.lowrance.com. Operation The displays and settings in this digital gauge are - Lowrance LST-3800 | Installation and Operation Manual - Page 6
Timeout There is no exit key in the LST 3800. The menus "time out" instead. That means they automatically close after a preset amount of time. When you install the gauge, the default timeout duration is 5 seconds. You can modify the TIMEOUT setting by pressing MENU and using the up and down keys to - Lowrance LST-3800 | Installation and Operation Manual - Page 7
Depth Page The Depth Page displays water depth readings taken by the 200 kHz transducer packed with the LST-3800. For transducer installation instructions, see Installation Instructions for Skimmer Transducers the amount of time that will pass before the gauge switches to the next page. To access the - Lowrance LST-3800 | Installation and Operation Manual - Page 8
MANUAL is checked. NOTE The OFF setting is also supported in the automatic Backlight configuration, but you will only see it when the dash when pressed when this feature is turned on), or default settings used when the gauge was powered up for the set to notify you of water depth, ranging from 1 to 640 - Lowrance LST-3800 | Installation and Operation Manual - Page 9
the units of measure for temperature and depth from FEET and FAHRENHEIT (°F) to METERS and CELSIUS (°C). Timeout You can modify the amount of time a menu will be displayed by accessing the Timeout menu. See detailed entry on page 6. System The System menu displays the gauge's software information. 9 - Lowrance LST-3800 | Installation and Operation Manual - Page 10
Notes 10 - Lowrance LST-3800 | Installation and Operation Manual - Page 11
instructions of the owner's manual for the product. We reserve the right to make changes or improvements in our products from time to time without incurring the obligation to install in case warranty service is ever required. LOWRANCE ELECTRONICS 12000 E. SKELLY DRIVE, TULSA, OK 74128 (800) 324-1356 - Lowrance LST-3800 | Installation and Operation Manual - Page 12
near you, see the instructions in paragraph number 1 below. Accessory Ordering Information LEI Extras is the accessory source for sonar and GPS products manufactured by Lowrance Electronics. To order Lowrance accessories, please contact: 1) Your local marine dealer or consumer electronics store
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Pub. 988-0064-351
LST-3800
In-Dash Digital Sonar Gauge
Installation & Operation Instructions
The LST-3800 is a depth and temperature gauge that comes with a 200
kHz transducer, features deep and shallow alarms and has three main
page displays. It can show depth in Meters or Feet, temperature in Fahr-
enheit or Celsius and its display may be set to rotate between Tempera-
ture, Depth or Dual display pages. The unit fits in a standard 2-1/8" (54
mm) hole used by most marine equipment manufacturers.
The 3800 is designed to display water depth and surface water tempera-
ture, but you MUST have a transducer with built-in temp sensor to re-
ceive temperature information.
LST-3800 temperature gauge.
Mounting Preparations
When installed, the gauge's bezel will cover a circular area at least 2-1/2"
(64 mm) wide on the front of the dash. To mount the unit, make sure
there is at least 4-1/8" (105 mm) from the front of the dash to any ob-
struction behind the dash. The maximum usable dash thickness is 1-1/8"
(28.5 mm). Also, make certain there is room to route the unit's cables.
The following figure shows gauge dimensions.