Universal tank flange kit, Shut-down relay – SeaLand DTM04 Tank Monitor System Manual User Manual
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INSTAllATION (continued)
universal Tank flange Kit (optional)
1.	 Find	and	mark	the	top	center	of	the	tank.
2.	 Cut	a	4	1/16-inch	diameter	hole	in	the	top	center	of	
the tank.
3. Slip the flange into the hole and mark the location
of the five mounting holes.
4. Drill the five mounting holes with a 1/4-inch drill
bit.
5. Remove the flange, clean all oils, grease and dirt
from the mounting surface and allow to dry.
6. Apply liberal amounts of silicone rubber adhesive
to the mounting surface and the underside of the 
flange.
7. Insert the gasket into the flange and align with the
five mounting holes.
8. Secure the flange with the screws, nuts and washers
provided.
9. Install the probe cap and, if applicable, secure the
5/8-inch	vent	hose	to	the	vent	fitting	with	a	stainless	
steel	hose	clamp.
flange Kit Assembly
Shut-down Relay (optional – applies to DTM04 only)
CAUTION:	VERIFY	THAT	RELAY	IS	CORRECT	VOLTAGE	FOR	SYSTEM	(12VDC	requires	P/N	600341292	and	
24VDC	requires	P/N	600342490).
1. Insert a small screwdriver behind the top or bottom slot of the panel cover and pry it outward. Remove panel
cover from circuit panel.
2.	 Remove	the	four	mounting	fasteners	and	pull	the	circuit	panel	out	of	the	wall	or	hull	liner,	exposing	the	
	
wiring connections.
3.	 Insert	the	shut-down	relay	into	the	socket	on	the	back	of	the	circuit	panel.
4.	 Reinstall	the	circuit	panel	to	the	wall.
5.	 Route	the	additional	wires	(use	12	or	14	gauge	stranded	copper)	to	wires	10	and	11	on	pigtail	to	interrupt	
power for the toilet system. (See shut-down relay wiring diagram for application details.)
6.	 Turn	on	power	and	test	circuit.
7.	 Complete	installation	to	wall.
Tank
surface
