Garnet SEELEVEL PosiGround 672-H Manual page 20

4. Press the SELECT button repeatedly to scroll through the remaining
programming options. After the last option, the display will show
donE
" " while the button is held down. When the button is released,
the system will return to normal operation within a second. If at any
time no button is pressed for 5 minutes, the system will return to
normal operation. If you wish to remain in the programming mode,
press the SET button while still holding down the SELECT button when
the display shows "
menu item.
To program the range:
The PosiGround can be set to determine the grounding status at a resistance
of either 250 ohms (high range) or 10 ohms (low range). Typically, the high
range is used when grounding is being measured through the earth, such
as between two ground rods or equivalent unconnected metal structures.
Specifications normally call for this resistance to be less than 1000 ohms to
be effective, the PosiGround uses 250 ohms as the decision point to allow
for margin.
The low range is used when grounding to metal structures that are in turn
properly grounded, these are commonly provided at loading facilities. In
this case specifications normally call for metal to metal resistance to be
less than 10 ohms. The PosiGround uses this value.
It is up to the operator and/or equipment installer to determine which
range is appropriate for the application.
1. Hold down the SELECT button to enter the programming mode.
Once the top display shows "
the programming mode, release the button.
2. Press the SELECT button again until the top display shows "
3. Press the SET button to change the range between 10 ohms (
and 250 ohms (
4. Press the SELECT button repeatedly to scroll through the remaining
programming options. After the last option, the display will show
donE
" " while the button is held down. When the button is released,
the system will return to normal operation within a second. If at any
time no button is pressed for 5 minutes, the system will return to
normal operation. If you wish to remain in the programming mode,
press the SET button while still holding down the SELECT button when
the display shows "
menu item.
Page 20
". This returns you to the first programming
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r250
).
". This returns you to the first programming
donE
" to show that you have entered
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".
r10
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672-H Manual