Manual
UNPACKING YOUR DM3
You will find the following items in the package:
• The DM3 itself
• This instruction manual
• A small plastic bag containing the following
items:
-4 mounting screws
-1 spare fuse
-2 spare programming jumpers
OPTIONAL ACCESSORIES
THE FOLLOWING ITEMS ARE OPTIONAL
AND ARE AVAILABLE FROM YOUR DEALER:
Alarm relay module:
This plug-in module allows the connection of
equipment that will provide additional “hi” and
“lo” alarm warnings. Examples of such warnings
are lights, bells or sirens, radio transmitters, etc.
Alarm beeper module:
This plug in module produces a loud tone to
indicate that a hi or lo battery voltage condition
has occurred.
NOTE: Only one of the above modules may be
installed on the DM3.
Metal box (4x7 BOX):
Protects the DM3 electronics. Provides a means
for mounting the DM3 to a wall without making a
large cutout (such a cutout is required for flush
mounting). The enclosure can also be used for
flush-mount installations to protect the DM3 and
to allow cable clamps to secure wires.
External shunts:
If you wish to measure more than one current, or
if you wish to measure a current greater than 30
amps, you will need external shunts. One is
required for EACH such current measurement.
The shunts are specified as follows:
• For currents up to 100 amps: 100A/100mv
• For currents up to 500 amps: 500A/50mv
ADDITIONAL ITEMS AND
TOOLS THAT YOU WILL
NEED FOR INSTALLATION
OF THE DM3
TO FLUSH MOUNT THE DM3:
• Wire strippers
• Drill with 3/8" bit
• Keyhole saw or saber saw
• Awl or punch
• Slotted screwdriver
• 2-conductor wire from DM3 to battery
• 2-conductor wire (16-26 AWG) from remote
shunts to DM3 location (optional)
• Mounting fasteners of appropriate type for the
wall material
TO WALL MOUNT THE DM3:
• Optional wall mount enclosure
• Wire strippers
• Awl or punch
• Slotted screwdriver
• 2-3 each 1/2 inch Romex cable clamps
• 2-conductor wire from DM3 to battery
• 2-conductor wire (16-26 AWG) from the remote
shunt to DM3 location (optional)
• Mounting fasteners of appropriate type for the
wall material
TO INSTALL OPTIONAL REMOTE SHUNTS:
• Wire strippers
• Heavy duty diagonal cutters (for cutting the
internal shunt on the DM3)
• 7/16 end wrench (for 100 amp/100 mv shunt)
• 9/16 end wrench (for 500 amp/50 mv shunt)
• Slotted screwdriver
• Remote shunts (100 amp/100 mv or 500 amp/50
mv)
• Wire lugs, 2 per shunt (1/4" hole for 100 amp,
3/8" hole for 500 amp)
• Mounting fasteners of appropriate type for the
wall material
• Small gauge wire (16-26) for shunt sense wires
TO INSTALL OPTIONAL ALARM MODULE:
• Wire strippers
• 5/16 inch nut driver or long nose pliers
• Appropriate gauge wire (16-20) for connection to
alarm device
TO INSTALL OPTIONAL BEEPER MODULE:
• 5/16 inch nut driver or long nose pliers
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