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OPTIONAL INTERNAL BATTERY INSTALLATION
The Z-11ProII uses so little power that it is practical to install an internal battery pack,
making it more convenient to use for portable operation. The Z-11ProII has solder pads marked
B+
and
B-
near the power jack on the internal circuit board. These solder pads are provided to
allow easy installation of an internal battery pack.
The Z-11ProII will operate on any input voltage from 7 to 16 volts DC, which opens up a
wide range of internal battery possibilities. The most common would be 6 or 8 AA or AAA
batteries in a battery holder, with the holder double-sided-taped to the top of the relay bank. A
single 9V alkaline battery will work, as well, though it will need to be changed more frequently,
as 9V batteries typically have low (~300 mAh) capacity compared to AAA or AA batteries.
Appropriate battery holders are available from Radio Shack (
www.radioshack.com
), Digi-
Key (
www.digikey.com
), or Mouser (
www.mouser.com
).
To install a battery holder inside the Z-11ProII, remove the four screws that secure the cover,
and remove the cover from the unit. Locate the two solder pads marked
B+
and
B-
near the DC
power jack. Solder the positive lead (normally red) of the battery pack to the
B+
pad, and solder
the negative lead (normally black) to the
B-
pad. Be careful not to create any solder bridges or
shorts.
Secure the battery pack either to the underside of the lid, or to the top of the bank of relays,
using double-sided foam tape. Install batteries, and, if necessary, place tape over the batteries to
keep them secured in the holder. Replace the Z-11ProII cover, being careful not to pinch the
battery wires.
Summary of Contents for Z-11ProII
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