Product #7740
P
ROTECTED
J
UNCTION
B
OX
The Protected Junction Box may be used in place of the junction box supplied
with your Davis Weather Monitor II™ or Weather Wizard III™. The Protected
Junction Box offers limited protection from radio frequency interference (RFI)
and limited surge protection. It may be placed out of doors, but only if placed
inside one of Davis’s shelters or other weather-proof enclosure. The cable run
between the Protected Junction Box and the station console may be a maximum
of 200' (60 m).
This instruction manual takes you step-by-step through the process r equired to
connect and mount your Protected Junction Box. Please take the time to read
this manual before beginning the process.
C
OMPONENTS
The Protected Junction Box includes the following components. Please make
sure you have all listed components before continuing.
✦
Protected Junction Box
✦
Two 16.5-foot (5 m) Ground
Wires (12 AWG)
✦
Three #6 x 1” (25 mm long)
Self-Threading Screws
✦
Two Cable Ties
✦
Four Adhesive Pads
Page 2 Protected Junction Box
T
OOLS
AND
M
ATERIALS
N
EEDED
In addition to the components listed above, you may need some of the following tools and materials. Please be sure you have everything you need before
beginning the installation.
✦
Medium Slotted Screwdriver
✦
Sheet of Small Labels
D
ISCONNECTING
THE
E
XISTING
J
UNCTION
B
OX
If necessary, consult your weather station manual for instructions on disconnecting the cables from your existing junction box and removing the existing
junction box from its mounting location.
Note: Do not throw away your existing junction box. The surge absorbers in the Protected Junction Box
may “blow” if they absorb a direct or near lightning strike. In this case, you may use your old
junction box to keep the station operating while the Protected Junction Box is repaired (provided
your sensors haven’t “blown” as well).
We recommend that you label the end of each cable as you disconnect it. For
example, write “WIND” onto one half of a small label (not provided) and then
wrap that label around the anemometer cable about 3” (75 mm) from the
phone plug. This will help you identify the cables when attaching to the Protected Junction Box.
L
ABELING
Y
OUR
C
ABLES
Mounting the Protected Junction Box Page 3
M
OUNTING
THE
P
ROTECTED
J
UNCTION
B
OX
You may mount the Protected Junction Box against a wall or other vertical surface or you may simply set it down on a horizontal surface.
1. Remove the cover from the Protected Junction Box by pushing down on the tabs at the
top until you can remove the tabs from the slots.
R
EMOVING
THE
C
OVER
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