Specialty Concepts DM3 - Manual (Page 4)

QUICK SETUP
IF YOU READ NO OTHER PAGE IN THIS MANUAL...READ THIS ONE!
Page numbers after headings refer to the location in this manual where further details about the topic can be found.
PLEASE READ ALL CAUTIONS AND WARNINGS ON PAGE 2 BEFORE
PROCEEDING
1. Choose a location for the DM3 (Page 5):
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This location must be indoors, or outdoors in a suitable enclosure, and protected from dirt, bugs, and moisture.
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You will be running wires to this location from your solar panels, batteries and (possibly) your loads.
2. Decide on the method for mounting it (Page 5, 12):
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If you wish to flush mount the DM3, you must cut a hole for it in the mounting surface. Go to page 12 for flush
mount instructions. Use the mounting template on page 16.
•
If you wish to mount the DM3 in the optional metal enclosure, first secure the enclosure to the mounting surface
with the proper hardware. Then, after connecting the DM3 (see below), you will secure the DM3 to the
enclosure.
3. Determine if you will be using the DM3’s internal shunt or if you need to install
an external shunt. (Page 5, 13). If you do not know what a shunt is, refer to
page 6.
NOTE: Shunts MUST be installed in the negative legs of the device whose current you wish to measure.
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For one current of 30 amps or less, use the internal shunt.
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For one current of more than 30 amps, use an external shunt.
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For a second current of any value, use an external shunt.
4. Install the optional alarm relay module or the alarm beeper module (Page 4, 11):
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If installing this option, mount it to the rear of the DM3 per the instructions included with the module.
5. Set the programming jumpers (Page 5, 7, 10):
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Determine which shunts you will be using. If using the internal 30 amp shunt or any external 100 amp shunts,
you do not need to modify the decimal point programming. If using any 500 amp shunts, the programming will
have to be altered
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Determine what the “AUX” input will be used for. Set the two jumpers accordingly.
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If you wish to alter the factory preset alarm set-points (they are set for a 12 volt system), this must be done
after the DM3 has power applied to it (see steps 6 and 7 below) and before it is mounted.
6. Connect wires to the DM3 (Page 5, 6, 13):
CAUTION:
FOR SAFETY, REMOVE POWER FROM WIRES BEFORE CONNECTING
THEM TO THE DM3.
•
Using the label on the back of the DM3 as a guide, connect the wires to the DM3. Observe polarity.
7. Apply power to and test the DM3 (Page 5, 7):
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Apply battery power to the DM3.
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Set the front panel switch to the “BATTERY VOLTS” position. The display should show your normal battery
voltage.
If measuring current, set the front panel selector switch to the appropriate position. The display should show the
current being produced (or consumed) by the device connected to the shunt .
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