Sutron Corporation 8310 & 7310 Users Manual 8800-1125Rev. 2.7 (BETA) 4/16/2014 pg. 30
Ground Lug
A ground lug is provided on each 8310 in order to connect the 8310 to an EARTH ground at the
site. On the 8310-N, this ground lug is on the side of the enclosure. On the 8310-O, the ground
lug is on the protection/termination board. Normally, you should run a 16 gauge wire (or
heavier) from this lug to the site ground rod. The length of the wire should be minimized.
Failure to do so can render the site more susceptible to damage by lightning.
Front Panel Control of the 8310
Now that you have a working knowledge of the components of the front panel display, it is time
to learn about the 8310's inner workings. As mentioned earlier, the 8310 may be set up by
means of the front panel buttons or a PC equipped with appropriate software. Even though the
8310 can be set up without using the front panel, it is important to know how to operate it in
this way.
Turning the display unit on and off
Press any key to turn on the front panel display. If the display is turned on and left on with no
input/output activity it will turn itself off after 60 seconds (the timeout period is settable). This
timeout feature conserves battery power. To turn off the display, press the OFF key. Since OFF
is also used as a CANCEL key, pressing OFF may not turn off the display immediately. Before the
system turns off the display it may display important error or status information.
Hint: Carefully review what is displayed when OFF is pressed and take appropriate action so you
do not leave the 8310 configured incorrectly.
Changing the Contrast
The contrast of the display can be adjusted by holding the OFF/CANCEL down and then pressing
the RIGHT (increase contrast) and LEFT (decrease contrast).
The 8310 Menu Tree
The display area can be thought of as being a "window" into the menu tree. Moving this
"window" up and down the menu tree allows the user to see, and control one level setting at a
time. The entire menu tree contains all of the items available to set up and control the 8310.
Not all the items are needed each time the 8310 is set up. In this chapter, we will teach you
how to move around through the various menus using the arrow keys. You do not need to be
concerned with the meaning of all the items in the menu. The complete description of every
menu item is explained in Chapter 4.
The menu tree for the standard 8310 is shown on the following pages. Use it as a reference
guide when operating the 8310.
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