Entering Geographical Data - Sartorius Signum Serie Instrucciones De Instalación

Entering Geographical
Data
Purpose
To perform an external adjustment of
the weighing instrument at a place of
adjustment that is not the same as the
place of installation (e.g., at the factory
or on the dealer's premises). If the
weighing instrument is adjusted at the
place of installation, it is not necessary
to enter the geographical data.
The sensitivity of a weighing instrument
can change depending on its place of
installation, because it is affected by
local gravity – or, more precisely, by the
acceleration of gravity. When the geo-
graphical data is stored, the place of
installation can be changed following
external adjustment.
Calibration/adjustment of a weighing
instrument is valid at the place of
installation and within a specific toler-
ance range around that location. With
3000 e, for example, the tolerance zone
is ±100 km of the geographical latitude,
and ±200 m of the elevation above sea
level.
The following exception applies in
Germany ("Zone D"):
If the latitude and altitude are set to
– 51.00° North and
– 513 meters above sea level,
the weighing instrument can be used
anywhere in Germany. The acceleration
of gravity applicable for Germany
("Zone D") is 9.810 m/s.
The geographical data stored in the
output device at the factory applies to
Germany ("Zone D").
This setting is recommended for cali-
brating/adjusting weighing instruments
to be used within Germany. Entering
more precise geographical data will
increase the weighing instrument's
precision, but will also restrict the toler-
ance zone.
Diagram of Menu for Entering Geographical Data
1. 20.
1. 20. 1
1. 20. 2
1. 20. 3
1. 20. 4
Notes on Settings
– Geographical data can be entered only
in the service mode and only with the
menu access switch open.
– To enter geographical data, activate the
service mode (see "Service Mode"), open
the Setup menu, and select the COM-
SPEC submenu. Settings are configured
in the corresponding numeric menu
under menu item 1.20.
– Enter either the geographical latitude in
degrees (menu item 1.20.1) together
with the altitude above sea level (menu
item 1.20.2), or enter the acceleration
of gravity (menu item 1.20.3).
If the acceleration of gravity has been
entered, then this value takes prece-
dence over the latitude and altitude; in
this case, "99999.99" and "9999999"
are displayed for latitude and altitude,
respectively. If only altitude and lati-
tude are entered, "0000000" is shown
for the acceleration of gravity.
! If you return to the highest level of the
numeric menu without saving changes
(menu item 1.20.4), all changes made
up to that point are discarded.
Procedure
– Open the menu access switch. If the
display and control unit is part of a ver-
ified weighing system, the verification
seal must be broken to move the
switch. Afterwards, the scale must be
re-verified.
– Activate the service mode
– Select the weighing platform
– Enter geographical data for the place
of adjustment under menu items 1.20.1
through 1.20.3 and select menu
item 1.20.4 to save. This data can be
obtained from the relevant land registry
or Ordnance Survey.
– Perform external calibration/adjustment
(see page 19)
Place of Adjustment (latitude and altitude or acceleration of gravity at the place of installation)
Latitude in degrees
Altitude in meters above sea level
Acceleration of gravity
Store values entered for 1.20
– Following calibration/adjustment, enter
the geographical data for the place of
installation under menu items 1.20.1
through 1.20.3 and select menu item
1.20.4 to save.
– Close the menu access switch
– The scale can now be used at the place
of installation, or anywhere within the
tolerance zone.
Note:
To display geographical data during the
calibration/adjustment procedure, select
menu item 8.12.2 in the Setup menu,
under Utilit (factory setting: 8.12.1,
geographical data not displayed).
When the display of geographical data
is active, the calibration procedure is as
follows:
If latitude and elevation have been
entered, the display shows "Altitude"
for 2 seconds when the calibration pro-
cedure is started (CAL ), followed by the
configured elevation above sea level in
meters. Press ) to confirm the data,
or ( to cancel. Next, the display
shows LATITUD for 2 seconds, followed
by the value set for the geographical
latitude (in degrees). Again, press )
to confirm the data or ( to cancel.
Next, the prompt to position the
adjustment weight on the instrument is
shown. If the acceleration of gravity
was entered rather than altitude and
latitude, the word "GRAVITY" appears
for 2 seconds, followed by the value for
the acceleration of gravity. Press ) to
confirm the data, or ( to cancel.
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