The MT-3405 M must be connected to a 12-volt DC electri-
cal system. Power is connected directly to the battery. The
MT-3405 M has an ON/OFF switch on the console to turn
the power off when the system is not being used.
Locate the power cable harness and connect to the
mating connector on the console. Connect the blue
chassis ground wire to a good frame ground.
See
illustration 3.
Make sure there is good metal-to-metal
contact. Route the power cable from the console to
the battery. Cut off excess length. In routing cable to
battery, avoid ar eas where the ca ble may be subjected
to abrasion or ex ces sive heat. Install the in-line fuse
provided with the kit on the white wire, as illustrated,
to protect the circuit. Connect the WHITE wire (hot) to
the positive battery terminal. At tach the BLACK wire
(ground) to a screw or bolt on the equipment frame.
See
illustration 3.
Be sure there is good metal-to-metal con-
tact.
NOTE: For negative ground systems ONLy.
Mounting the Module
INSTALLINg ThE BRACkETS
To install the module brackets, crimp a terminal to the blue
ground wire. Fasten the brackets to the module as shown,
and install the crimped blue wire under one of the screws
holding the bracket to the module.
See illustration 4.
INSTALLINg ThE MOdULE
Select a mounting location for the SC-3405 module that
will provide enough cable to reach both the console and
each of the plumbing components. Fasten the module
and brackets to the equipment frame or other equipment
location using bolts or self-tapping screws. Cut the blue
wire to a suitable length. Crimp on terminal and connect
to good chassis ground.
See illustration 4.
Follow the wiring diagram shown on page 14. Use extension
cables to connect the 4-pin W/P shroud to the 4-pin W/P
tower of the console.
INSTALLATION NOTE: To avoid non-warranty moisture
damage to the module, route module cables so that the
connectors are lower than the module.
11
Installation
(cont)
Electrical Installation
illustration 3
illustration 4
Hot
(WHITE)
20-Amp In-line
Fuse Required
Ground
(BLACK)
Ground
+
-
Chassis Ground
(BLUE)
Your MT-3405 M is equipped with an ad vanced elec tronic
mem o ry which does not re quire a con stant supply of pow-
er to re tain daily totals or calibration val ues. The advantage
with this type of memory is that it conserves battery power
and will not dis charge the vehicle’s battery when equipment
is not in use.
To Chassis Ground
