Garnet SeeLevel II 900-D4D DUAL, Руководство пользователя, Страница: 16 / 24

Page 16 900D4D Manual
from a single value.
12. Determine the volume corresponding to one inch of level, for
example if the tank was a 400 barrel, 20 foot tank, this would
be 400 bbls / (20 ft * 12 in/ft)” = 1.66666666--- barrels per
inch. Determine how many decimal places you want to show
on the display, in our example the volume could be shown
as 400.0 or just 400 with no decimal. The display can only
have 4 digits, so 400.00 would not be an option. It is best
to match the gauge resolution with the number of decimal
places, so in this case 1/4” of level would be about 0.4 bbls, so
one decimal place would be appropriate. The gauge would
read 0.0, 0.4, 0.8, 1.2 bbls etc. If no decimals were used, then
the gauge would show the same barrel reading for 2 or 3
different inch readings in a row. Once this information has
been determined, write down the volume per inch with 4
additional digits after the last digit to be displayed, these are
used to prevent round off error. In our example, if we chose
one decimal place to be displayed, we would write down 1.6
6667 as our volume per inch, the first 6 is displayed and the
6667 are for round off error prevention. As another example,
if we had a 1000 bbl, 16 foot tank, then the volume per inch
would be 1000bbls/(16ft*12in/ft)=5.2083333 bbls/in. The
gauge resolution is 5.208333/4=1.3 bbls per 1/4”. In this case
displaying only even barrels would be appropriate, since we
cannot resolve less than one barrel. So the volume per inch
to write down for this example would be 5 2083, no decimal is
used by the gauge in this case.
13. The gauge requires exactly 8 digits to be entered for the
volume per inch, so extra zeros need to be added in front of
the number to get 8 digits. For our examples, in the first case
we would get 001.6 6667 and for the second case we would
get 0005 2083 as the numbers to enter into the gauge. These
numbers should be recorded with the gauge for any future
servicing requirements.
14. To access the linear calibration menu, press ↑↑ FAST UP or ↓↓
FAST DOWN until the display shows “ Lin CAL ”.
15. Enter the volume per inch from the previous step, if you make
a mistake press ↑↑ FAST UP and ↓↓ FAST DOWN to restart the
program. Enter the digits and decimal exactly as written from
the previous step, including the leading zeros. The numbers
will appear on the top displays as you enter them.
16. As soon as the eighth digit is entered, the display will show
“ Stor ” on the bottom display and the gauge will calculate the
calibration for the entire tank. This will take a few seconds,
when it is done the gauge will go to the table calibration