SeaLand TankWatch Level Monitor System User manual

DO-IT-YOURSELF
INSTALLATION INSTRUCTIONS
The TankWatch Level Monitor System is
designed to operate on 12 VDC in a sewage
holding tank, and to signal a nearly full tank
condition. This instrument will give years of
reliable service if installed properly.
CAUTION! DO NOT USE IN FUEL TANK!
Red light glows...
nearly full.
Your TankWatch Level Monitor System contains these items:
SWITCH ASSEMBLY
GASKET 4-No. 8x3/4”
MOUNTING SCREWS
2-No. 4x1/2”
MOUNTING SCREWS
3
2
1
4
Select a location as far as possible away from other
tank fittings. Drill 1 1/4-in. (32mm) dia. hole (hole
saw is best) in tank TOP.
NOTE FOR SAILBOATS: Locate switch on
athwartships centerline of tank to assure accuracy
when heeled.
Locate Switch Assembly into the 1 1/4-in. hole
using care to stay on center. Mark four mounting
holes. Remove Switch Assembly.
Drill mounting holes using 1/8-in.
(3mm) dia. drill bit. DO NOT mount
Switch Assembly at this time.
Select a location for your Indicator Assembly. Drill
a 1-in. (25mm) dia. hole to accommodate the LED
wires.
INDICATOR
ASSEMBLY
Plenty of capacity...
all is well.
MOUNTING TEMPLATE FOR
TANKWATCH PANEL
Drill 1-in.
(25mm) hole
LEVEL MONITOR SYSTEM
HOW IT WORKS...

6
5
7
A. Connect the red wire
through a 1/2-amp fuse
(not supplied), to the
positive DC source.
B. Connect the white wire
from the red LED to one
of the white wires on the
Float Switch Assembly.
C. Connect the remaining
white wire from the Float
Switch Assembly to the
negative DC source.
Place the Switch Assembly into the tank with the
gasket in place. Drive four No. 8 x 3/4” mounting
screws using care to tighten evenly. DO NOT
OVER-TIGHTEN.
Mount the Indicator Assembly. Fasten with the two
No.4 x 1/2” screws provided.
600340507 4/03
Following the wiring diagram, route wires on a
12VDC circuit using good electrical practice.
SPECIFICATIONS
MODEL INFORMATION
Part Number Description
313000312 TankWatch 1 Panel, Float Assembly
Average Current Consumption: 0.016 amps
Dometic Corporation • Sanitation Systems
13128 State Rt. 226, P.O. Box 38
Big Prairie, OH 44611-0038 USA
330-496-3211
1-800-321-9886 • Fax: [phone]
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© Dometic Corporation